DOCSLIB.ORG

56Th Annual Rocky Mountain Conference on Magnetic Resonance

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
56Th Annual Rocky Mountain Conference on Magnetic Resonance Rocky Mountain Conference on Magnetic Resonance Volume 56 56th Annual Rocky Mountain Conference Article 1 on Magnetic Resonance July 2014 56th Annual Rocky Mountain Conference on Magnetic Resonance Follow this and additional works at: https://digitalcommons.du.edu/rockychem Part of the Chemistry Commons, Materials Science and Engineering Commons, and the Physics Commons Recommended Citation (2014) "56th Annual Rocky Mountain Conference on Magnetic Resonance," Rocky Mountain Conference on Magnetic Resonance: Vol. 56 , Article 1. Available at: https://digitalcommons.du.edu/rockychem/vol56/iss1/1 This work is licensed under a Creative Commons Attribution 4.0 License. This Article is brought to you for free and open access by Digital Commons @ DU. It has been accepted for inclusion in Rocky Mountain Conference on Magnetic Resonance by an authorized editor of Digital Commons @ DU. For more information, please contact [email protected],dig- [email protected]. et al.: 56th RMCMR Final Program and Abstracts FINAL PROGRAM AND ABSTRACTS Endorsed by: Colorado Section – American Chemical Society & Society for Applied Spectroscopy July 13-17, 2014 Copper Conference Center Copper Mountain, Colorado, USA www.rockychem.com Published by Digital Commons @ DU, 2014 1 Rocky Mountain Conference on Magnetic Resonance, Vol. 56 [2014], Art. 1 56TH ROCKY MOUNTAIN CONFERENCE ON MAGNETIC RESONANCE July 13 – 17, 2014 Copper Conference Center Copper Mountain, Colorado, USA TABLE OF CONTENTS Organizers and Chairpersons . 2 Conference Supporters . 2 RMCMR Information . 3 Registration Exhibition Schedule Conference Lunch Conference Reception Cyber Lounge Messages Altitude 56TH Rocky Mountain Conference-at-a-Glance . 3 Meeting Spaces . 4 RMCMR Technical Program Schedule 37TH INTERNATIONAL EPR SYMPOSIUM . 5 Sunday Oral Sessions . 6 Monday Oral Sessions . 7 Tuesday Oral Sessions . 8 Wednesday Oral Sessions . 9 Thursday Oral Sessions . 9 EPR Poster Sessions . 10–11 SOLID-STATE NMR SYMPOSIUM . 12 Sunday Oral Sessions . .13 Monday Oral Sessions . .14 Tuesday Oral Sessions . .14 Wednesday Oral Sessions . 15 Thursday Oral Sessions . .16 NMR Poster Sessions . 17–20 RMCMR Abstracts . 21–139 Index of Presenters . 140–143 www.rockychem.com Milestone Presentations, LLC • 4255 South Buckley Road, #118 • Aurora, CO 80013 Ph: 800-996-3233 or 303-690-3233 • Fax: 888-996-3296 or 303-690-3278 E-mail: [email protected] • Web: www.milestoneshows.com https://digitalcommons.du.edu/rockychem/vol56/iss1/1 1 2 et al.: 56th RMCMR Final Program and Abstracts ORGANIZERS AND CHAIRPERSONS ENDORSED BY: CONFERENCE Colorado Section — American Chemical Society SUPPORTERS & (As of July 4, 2014) Society for Applied Spectroscopy ACS Publications – CONFERENCE CHAIR: The Journal of Physical Chemistry Kurt W . Zilm, Yale University, Department of Chemistry Active Spectrum, Inc . PO Box 20817 • New Haven, CT 06520-8107 ADANI Ph: 203-432-3956 • Fax: 203-432-6144 • kurt .zilm@yale .edu Agilent Technologies EPR SCIENTIFIC COMMITTEE: Bruker BioSpin CoretecNet Mark Sherwin • Chair, University of California Santa Barbara Doty Scientific, Inc . Kurt Warncke • Co-Chair 2014, Chair 2015, Emory University ExxonMobil Research & Engineering Christoph Boehme, University of Utah ISOTEC Stable Isotope Group Boris Epel, University of Chicago JEOL USA, Inc . Howard J . Halpern, University of Chicago Magnettech GmbH Songi Han, University of California Santa Barbara Medinox, Inc . National High Magnetic Field Lab Steve Lyon, Princeton University Research Coordination Network (RCN-SCN) Fraser MacMillan, University of East Anglia Revolution NMR, LLC Dane McCamey, University of New South Wales Rototec-Spintec John McCracken, Michigan State University Scientific Software Services Tecmag SOLID-STATE NMR SCIENTIFIC COMMITTEE: Virginia Diodes, Inc . Gerard Harbison • Chair, Wiley-Blackwell University of Nebraska Wilmad-LabGlass Ulrich Scheler • Chair, Leibniz-Institut für Polymerforschung Dresden e .V ., Dresden Zhehong Gan • Past Chair, National High Magnetic Field Lab SPECIAL THANKS Rob Schurko • Past Chair, University of Windsor TO THE FOLLOWING CONFERENCE-WIDE SPONSORS Sharon Ashbrook, University of St . Andrews ACS Publications – Gillian Goward, McMaster University The Journal of Physical Chemistry Sophia E . Hayes, Washington University in St . Louis Bruker BioSpin Christopher Jaroniec, Ohio State University JEOL USA, Inc . Leonard Mueller, University of California Riverside Magnettech GmbH Tecmag Tatyana Polenova, University of Delaware Virginia Diodes, Inc . Marek Pruski, Iowa State University Published by Digital Commons @ DU, 2014 2 3 Rocky Mountain Conference on Magnetic Resonance, Vol. 56 [2014], Art. 1 ROCKY MOUNTAIN CONFERENCE INFORMATION REGISTRATION CYBER LOUNGE Admission to all technical sessions and the exhibition is by The Cyber Lounge will be available: name badge only. Registration materials may be picked up at Monday, July 14 • 8:00 a.m.- 7:00 p.m. the RMCMR registration area located at the Copper Conference Center between 10:00 a.m. and 5:00 p.m. on Sunday, July 13 Tuesday, July 15 • 8:00 a.m. – 5:00 p.m. or 8:00 a.m. and 5:00 p.m. anytime Monday, July 14 through Wednesday, July 16 • 8:00 a.m. – 2:00 p.m. Thursday, July 17. Thursday, July 17 • 8:00 a.m. – 12:00 noon EXHIBITION SCHEDULE The Cyber Lounge is located next to the conference registration Monday, July 14 • 10:00 a.m. – 7:00 p.m. desk in the Copper Conference Center. Attendees may use the 5:30 p.m. – 7:00 p.m. Conference Reception Cyber Lounge to access the internet/e-mail. Please limit your use to no more than 5 minutes when others are around. Tuesday, July 15 • 9:00 a.m. – 5:00 p.m. Wednesday, July 16 • 9:00 a.m. – 2:00 p.m. MESSAGES Messages will be accepted and posted on the message board. Call CONFERENCE LUNCH 800-996-3233 or 303-690-3233 to leave messages. A complimentary lunch is being provided July 14, 15 and 16 to all registered symposia attendees. You will receive your luncheon ALTITUDE ticket(s) upon check-in at the Rocky Mountain Conference Copper Mountain is approximately 9,700 feet above sea level. registration desk. Tickets are date-specific and cannot be The acclimatization process is inhibited by dehydration, over- interchanged with any other day. Lost tickets cannot be replaced. exertion, alcohol and other depressant drugs. Please take the Unused tickets cannot be redeemed for another day. following precautions regarding high altitude: The lunch will be served in Jack’s each designated day from 12:00 noon to 1:00 p.m. • Take it easy; don’t over-exert yourself. • Light activity during the day is better than sleeping because CONFERENCE RECEPTION respiration decreases during sleep, exacerbating the symptoms. Monday evening from 5:30 p.m. to 7:00 p.m., all attendees are • Avoid tobacco, alcohol and other depressant drugs including, cordially invited to join in on beverages and hors d’oeuvres. barbiturates, tranquilizers, and sleeping pills. Unwind from the day’s events and continue the “Rocky Mountain • Eat a high carbohydrate diet Conference” experience. Check out all of the latest products and services as the reception is held right in the exhibition area. • Drink three to four times more water than usual. CONFERENCE-AT-A-GLANCE Sunday Monday Tuesday Wednesday Thursday EVENT LOCATION a.m. p.m. a.m. p.m. a.m. p.m. a.m. p.m. a.m. p.m. EPR Lectures Bighorn B EPR Posters Ptarmigan Exhibition Kokopelli Trail Bighorn B • Sunday only SSNMR Lectures Bighorn C • Mon.–Thurs. SSNMR Posters Ptarmigan https://digitalcommons.du.edu/rockychem/vol56/iss1/1 3 4 et al.: 56th RMCMR Final Program and Abstracts COPPER CONFERENCE CENTER MEETING SPACE COPPER MOUNTAIN CONFERENCE CENTER Published by Digital Commons @ DU, 2014 4 5 Rocky Mountain Conference on Magnetic Resonance, Vol. 56 [2014], Art. 1 37TH INTERNATIONAL EPR SYMPOSIUM & 56TH ROCKY MOUNTAIN CONFERENCE ON MAGNETIC RESONANCE July 13-17, 2014 Copper Conference Center Copper Mountain, Colorado CONFERENCE CHAIR EVENTS Kurt W . Zilm Focus Group for Thursday Discussion of Grand Challenges in EPR: EPR SYMPOSIUM COMMITTEE Sunday, July 13 Mark Sherwin (Chair) 9:30 a .m . – 12:30 p .m . (Hasty’s) Kurt Warncke (Co-Chair 2014, Chair 2015) Led by Gary Gerfen Christoph Boehme, Boris Epel, Howard J . Halpern, Viewing of World Cup Final: Songi Han, Steve Lyon, Fraser MacMillan, Sunday, July 13 Dane McCamey, John McCracken 1:00 p .m . – 3:30 p .m . (Incline Bar & Grill ) 10% food discount and limited reserved seating if EPR SYMPOSIUM SPONSORS wearing your RMCMR badge Bruker BioSpin “EasySpin” EPR Simulation Tutorial: Medinox, Inc . Sunday, July 13 4:00 p .m . – 6:00 p .m . (Hasty’s) National High Magnetic Field Lab Presented by Stefan Stoll Virginia Diodes, Inc . Bruker EPR Users’ Meeting: Sunday, July 13 REGISTRATION Starts at 6:30 p .m ., followed by a mixer . (Bighorn C) Register at www .rockychem .com For information and registration access : http://www bruker. com/events/users-meetings/. Admission to all technical sessions and the exhibition is by mr/epr-us/registration-north-american-epr-users- name badge only . Registration materials may be picked up at meeting html. the RMCMR registration area located at the Copper Conference Poster Sessions: Center between 10:00 a .m . and 5:00 p .m . on Sunday, July 13 or 8:00 a .m . and 5:00 p .m . anytime Monday, July 14 through Monday, July 14 Thursday, July 17 . 7:30 p .m . – 9:00 p .m . and Complimentary lunches are being provided July 16, 17 and 18 to all registered symposia attendees . You will receive Tuesday, July 15 your luncheon ticket(s) upon check-in at the Rocky Mountain 7:45 p .m . – 9:00 p .m . Conference registration desk . Tickets are date-specific and EPR Banquet: cannot be interchanged with any other day . Lost tickets cannot be replaced . Unused tickets cannot be redeemed for another Wednesday, July 16 day . The lunch will be served in Jack’s each designated day from 7:00 p m. – 9:00 p m. (Copper Station) 12:00 noon – 1:00 p .m .
Load more

Recommended publications
  • Physicists Set New Records for Silicon Quantum Computing 12 October 2014
    Physicists set new records for silicon quantum computing 12 October 2014 been published simultaneously today in the journal Nature Nanotechnology. "For quantum computing to become a reality we need to operate the bits with very low error rates," says Scientia Professor Andrew Dzurak, who is Director of the Australian National Fabrication Facility at UNSW, where the devices were made. "We've now come up with two parallel pathways for building a quantum computer in silicon, each of which shows this super accuracy," adds Associate Professor Andrea Morello from UNSW's School of Electrical Engineering and Telecommunications. The UNSW teams, which are also affiliated with the ARC Centre of Excellence for Quantum Computation & Communication Technology, were first in the world to demonstrate single-atom spin qubits in silicon, reported in Nature in 2012 and 2013. Now the team led by Dzurak has discovered a way to create an "artificial atom" qubit with a device remarkably similar to the silicon transistors used in This is an artist impression of an electron wave function consumer electronics, known as MOSFETs. Post- (blue), confined in a crystal of nuclear-spin-free doctoral researcher Menno Veldhorst, lead author 28-silicon atoms (black), controlled by a nanofabricated on the paper reporting the artificial atom qubit, metal gate (silver). The spin of the electron encodes a says, "It is really amazing that we can make such long-lived, high fidelity quantum bit. Credit: Dr Stephanie an accurate qubit using pretty much the same Simmons, UNSW Australia. devices as we have in our laptops and phones". Meanwhile, Morello's team has been pushing the "natural" phosphorus atom qubit to the extremes of Two research teams working in the same performance.
    [Show full text]
  • Quantifying the Quantum Gate Fidelity of Single-Atom Spin Qubits in Silicon
    Quantifying the quantum gate fidelity of single-atom spin qubits in silicon by randomized benchmarking J T Muhonen,1, ∗ A Laucht,1 S Simmons,1 J P Dehollain,1 R Kalra,1 F E Hudson,1 S Freer,1 K M Itoh,2 D N Jamieson,3 J C McCallum,3 A S Dzurak,1 and A Morello1, y 1Centre for Quantum Computation and Communication Technology, School of Electrical Engineering and Telecommunications, UNSW Australia, Sydney, New South Wales 2052, Australia 2School of Fundamental Science and Technology, Keio University, 3-14-1 Hiyoshi, 223-8522, Japan 3Centre for Quantum Computation and Communication Technology, School of Physics, University of Melbourne, Melbourne, Victoria 3010, Australia Building upon the demonstration of coherent control and single-shot readout of the electron and nuclear spins of individual 31P atoms in silicon, we present here a systematic experimental estimate of quantum gate fidelities using randomized benchmarking of 1-qubit gates in the Clifford group. We apply this analysis to the electron and the ionized 31P nucleus of a single P donor in isotopically purified 28Si. We find average gate fidelities of 99.95% for the electron, and 99.99% for the nuclear spin. These values are above certain error correction thresholds, and demonstrate the potential of donor-based quantum computing in silicon. By studying the influence of the shape and power of the control pulses, we find evidence that the present limitation to the gate fidelity is mostly related to the external hardware, and not the intrinsic behaviour of the qubit. I. INTRODUCTION number of qubits since the number of measurements re- quired to completely map a multi-qubit process increases The discovery of quantum error correction is among exponentially with the number of qubits involved.
    [Show full text]
  • Nuclear Spin, I |
    Sensing & Controlling Single Spins in Silicon Andrew Dzurak University of New South Wales [email protected] ANFF – AFOSR Program Review Washington D.C., 30 April - 4 May 2012 ANFF @ UNSW • 3 x EBL Systems (Raith, FEI ...) • Highest Concentration in Australia • Sub-10nm Features • Silicon MOS Process Line TiAuPd ANFF-NSW: Key Research Areas Silicon Nanoelectronics Silicon Photovoltaics Biomedical Devices (eg. Bionics, Si Biosensors) Telecomms (Nano-photonics) Quantum Information Technologies www.anff.org.au Conventional computing … … must confront some serious issues Cost of Fab $60B $50B $40B 360B $20B ? $10B $0B 1992 1995 1998 2001 2004 2007 2010 Year Quantum computing … could well be the solution Conventional Quantum |1> Computer Computer 0 , 1 |0 >, |1 > |0> bits qubits Quantum state of a two-level system |0> |1> Quantum Information Science Data Security Decryption National Security National Security Financial Services Intelligence e-Commerce Killer? Apps High Performance Semiconductors Computing Database Searching Integrated Circuits Bioinformatics Sensors Modeling & Design Nano-structuring Code Decryption • Public key encryption (RSA-129) is (almost) uncrackable. Basis of public secure comms today • A full-scale (few hundred qubits) quantum computer could crack RSA-129 in seconds (Peter Shor – 1994) • Obvious applications in national and global security High Performance Computing • Simulation (modeling) & database searching • Existing supercomputers now under strain • Application areas: Nuclear weapons simulation Rapid data
    [Show full text]
  • High-Fidelity Readout and Control of a Nuclear Spin Qubit in Silicon
    1 High-fidelity readout and control of a nuclear spin qubit in silicon Jarryd J. Pla1, Kuan Y. Tan1†, Juan P. Dehollain1, Wee H. Lim1†, John J. L. Morton2, Floris A. Zwanenburg1†, David N. Jamieson3, Andrew S. Dzurak1, Andrea Morello1 1Centre for Quantum Computation and Communication Technology, School of Electrical Engineering & Telecommunications, University of New South Wales, Sydney, New South Wales 2052, Australia. 2London Centre for Nanotechnology, University College London, London WC1H 0AH, UK. 3Centre for Quantum Computation and Communication Technology, School of Physics, University of Melbourne, Melbourne, Victoria 3010, Australia. †Present addresses: Department of Applied Physics/COMP, Aalto University, P.O. Box 13500, FI-00076 AALTO, Finland (K.Y.T.); Asia Pacific University of Technology and Innovation, Technology Park Malaysia, Bukit Jalil, 57000 Kuala Lumpur, Malaysia (W.H.L.); NanoElectronics Group, MESA+ Institute for Nanotechnology, University of Twente, Enschede, The Netherlands (F.A.Z.). A single nuclear spin holds the promise of being a long-lived quantum bit or quantum memory, with the high fidelities required for fault-tolerant quantum computing. We show here that such promise could be fulfilled by a single phosphorus (31P) nuclear spin in a silicon nanostructure. By integrating single-shot readout of the electron spin with on-chip electron spin resonance, we demonstrate the quantum non-demolition, electrical single-shot readout of the nuclear spin, with readout fidelity better than 99.8% - the highest for any solid-state qubit. The single nuclear spin is then operated as a qubit by applying coherent radiofrequency (RF) pulses. For an ionized 31P donor we find a nuclear spin coherence time of 60 ms and a 1-qubit gate control fidelity exceeding 98%.
    [Show full text]
  • FAHD A. MOHIYADDIN Quantum Computing Institute
    FAHD A. MOHIYADDIN Quantum Computing Institute, Computational Sciences & Engineering Division, Oak Ridge National Laboratory, Tennessee, USA Email : [email protected] Phone: +1-865-237-7242 CAREER PROFILE . Postdoctoral research associate focused at designing quantum devices with Technology CAD and atomistic techniques. Extensive software skills developed with semiconductor modeling, programming microcontrollers and implementing image processing algorithms. Proven ability to adapt and work on diverse projects in academia and industry. Aim to work in a challenging, R&D based dynamic environment with an organization that values hard work, integrity and creativity. EDUCATION Doctor of Philosophy (Electrical Engineering) Mar 2011 – Nov 2014 University of New South Wales (UNSW), Australia Thesis Title: Designing a large scale quantum computer with classical & quantum simulations. Synopsis of Research: My research focused on the designing novel devices, in a team that performs world leading research, to develop a fully scalable quantum computer in silicon. Extensive modeling of a wide range of experimental devices was carried out, emphasizing their operation at the nanoscale quantum regime. They include single donor qubits, quantum dots, exchange coupled donor-pairs and many-body spin systems. Device parameters – such as defects, capacitances, electric fields & band-structure – were completely described and perfectly matched to fabricated devices, including the world’s first quantum bit in silicon. Based on close agreement with experiments, required device topologies and operation methods were proposed, for realizing the next generation of solid state quantum computer devices. Research resulted in 6 journal articles & 2 conference papers. Presented 3 talks and 9 posters at international conferences, and won 2 best poster awards. Collaborated with leading groups at Purdue University, University of Melbourne & University of Maryland.
    [Show full text]
  • Local and Distributed Quantum Computation
    Local and Distributed Quantum Computation Rodney Van Meter and Simon J. Devitt May 24, 2016 Abstract Experimental groups are now fabricating quantum processors powerful enough to execute small instances of quantum algorithms and definitively demonstrate quantum error correction that extends the lifetime of quantum data, adding ur- gency to architectural investigations. Although other options continue to be ex- plored, effort is coalescing around topological coding models as the most prac- tical implementation option for error correction on realizable microarchitectures. Scalability concerns have also motivated architects to propose distributed memory multicomputer architectures, with experimental efforts demonstrating some of the basic building blocks to make such designs possible. We compile the latest re- sults from a variety of different systems aiming at the construction of a scalable quantum computer. arXiv:1605.06951v1 [quant-ph] 23 May 2016 1 1 Introduction Quantum computers and networks look like increasingly inevitable extensions to our already astonishing classical computing and communication capabilities [1, 2]. How do they work, and once built, what capabilities will they bring? Quantum computation and communication can be understood through seven key con- cepts (see sidebar). Each concept is simple, but collectively they imply that our clas- sical notion of computation is incomplete, and that quantum effects can be used to efficiently solve some previously intractable problems. In the 1980s and 90s, a handful of algorithms were developed and the foundations of quantum computational complexity were laid, but the full range of capabilities and the process of creating new algorithms were poorly understood [1, 3, 4, 5, 6]. Over the last fifteen years, a deeper understanding of this process has developed, and the num- ber of proposed algorithms has exploded 1.
    [Show full text]
  • Fast Noise-Resistant Control of Donor Nuclear Spin Qubits in Silicon
    Fast noise-resistant control of donor nuclear spin qubits in silicon James Simon1;2, F. A. Calderon-Vargas2, Edwin Barnes2, and Sophia E. Economou2∗ 1Department of Physics, University of California, Berkeley, California 94720, USA 2Department of Physics, Virginia Tech, Blacksburg, Virginia 24061, USA A high degree of controllability and long coherence time make the nuclear spin of a phosphorus donor in isotopically purified silicon a promising candidate for a quantum bit. However, long- distance two-qubit coupling and fast, robust gates remain outstanding challenges for these systems. Here, following recent proposals for long-distance coupling via dipole-dipole interactions, we present a simple method to implement fast, high-fidelity arbitrary single- and two-qubit gates in the absence of charge noise. Moreover, we provide a method to make the single-qubit gates robust to moderate levels of charge noise to well within an error bound of 10−3. I. INTRODUCTION on clock transitions. Our approach is based on using optimally designed control pulse waveforms and energy Nuclear spins in the solid state present unparalleled transition modulation. Accordingly, we derive a time- advantages as a platform for quantum computing due independent analytical approximation for the system's to their long coherence times [1, 2] and high degree of Hamiltonian, explain how to rapidly implement arbi- controllability [3{5]. In particular, the nuclear spin of a trary, noise-resistant single-qubit gates with fidelities ex- phosphorus donor in silicon is a promising candidate for a ceeding 99.9% even in the presence of significant charge quantum bit [6, 7] owing to its coherent control [8{10] and noise, and provide a method to use the dipole-dipole in- minute-long coherence time [2].
    [Show full text]
  • Understanding and Suppressing Dephasing Noise in Semiconductor Qubits
    Understanding and suppressing dephasing noise in semiconductor qubits Félix Beaudoin Department of Physics McGill University, Montréal July 2016 A thesis submitted to McGill University in partial fulfillment of the requirements for the degree of Doctor of Philosophy in Physics ©2016 – Félix Beaudoin all rights reserved. Thesis advisor: Professor William A. Coish Félix Beaudoin Understanding and suppressing dephasing noise in semiconductor qubits Abstract Magnetic-field gradients and microwave resonators are promising tools to realize a scalable quantum-computing architecture with spin qubits. Indeed, magnetic-field gradients allow fast se- lective manipulation of distinct qubits through electric-dipole spin resonance and coherent coupling of spin qubits to a microwave resonator. On the other hand, microwave resonators are useful for quantum state transfer and two-qubit gates between distant qubits, and qubit readout. In this thesis, we take a theoretical approach to understand and suppress pure-dephasing mecha- nisms relevant to spin qubits in the presence of the above-mentioned devices, recently introduced to improve scalability. We first focus on dephasing of a spin qubit in the presence of a magnetic-field gradient. We predict that hyperfine coupling of the qubit to an environment of nuclear spins pre- cessing under the influence of a magnetic-field gradient leads to a new qubit dephasing mechanism. We show that in realistic conditions, this new mechanism can dominate over the usual dephasing processes occurring in the absence of a gradient. This result is relevant to spin qubits in GaAs or silicon quantum dots, or at single phosphorus donors in silicon. A magnetic-field gradient may also expose spin qubits to charge noise.
    [Show full text]
  • Optical Characterization of the Si:Se Spin-Photon Interface
    Optical characterization of the Si:Se+ spin-photon interface by Adam DeAbreu B.Sc., Simon Fraser University, 2016 Thesis Submitted in Partial Fulfillment of the Requirements for the Degree of Master of Science in the Department of Physics Faculty of Science c Adam DeAbreu 2018 SIMON FRASER UNIVERSITY Summer 2018 Copyright in this work rests with the author. Please ensure that any reproduction or re-use is done in accordance with the relevant national copyright legislation. Approval Name: Adam DeAbreu Degree: Master of Science (Physics) Title: Optical characterization of the Si:Se+ spin-photon interface Examining Committee: Chair: Nancy Forde Professor Stephanie Simmons Senior Supervisor Associate Professor Michael Thewalt Supervisor Professor Simon Watkins Internal Examiner Professor Date Defended: August 27, 2018 ii Abstract The combination of both matter qubits and photonic qubits presents a very promising method for generating entanglement between qubits in order to scale up both quantum computing and quantum communication platforms. Hosting both qubits in silicon would be a favourable approach as silicon has not only the most mature microelectronics industry but also the most mature photonics industry. Singly ionized selenium donors (Si:Se+) have recently been identified as a possible candidate. Si:Se+ possess the excellent coherence life- times of conventional donor spin qubits in silicon but additionally has photonic access to the spin states at a convenient wavelength, 2.9 µm. The spin-photon interface of Si:Se+ has the potential to be the basis for an integrated, all silicon, quantum computer. For this work we made custom samples with the specific purpose of measuring the crucial optical properties that determine the viability of the Si:Se+ spin-photon interface as a basis for a quantum architecture.
    [Show full text]
  • Assessment of a Silicon Quantum Dot Spin Qubit Environment Via Noise Spectroscopy
    PHYSICAL REVIEW APPLIED 10, 044017 (2018) Assessment of a Silicon Quantum Dot Spin Qubit Environment via Noise Spectroscopy K. W. Chan,1,* W. Huang,1 C. H. Yang,1 J. C. C. Hwang,1 B. Hensen,1 T. Tanttu,1 F. E. Hudson,1 K. M. Itoh,2 A. Laucht,1 A. Morello,1 and A. S. Dzurak1,† 1 Centre for Quantum Computation and Communication Technology, School of Electrical Engineering and Telecommunications, The University of New South Wales, Sydney, New South Wales 2052, Australia 2 School of Fundamental Science and Technology, Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama 223-8522, Japan (Received 24 May 2018; revised manuscript received 6 July 2018; published 5 October 2018) Preserving coherence long enough to perform meaningful calculations is one of the major challenges on the pathway to large-scale quantum-computer implementations. Noise coupled in from the environment is the main factor contributing to decoherence but can be mitigated via engineering design and control solutions. However, this is possible only after acquisition of a thorough understanding of the dominant noise sources and their spectrum. In the work reported here, we use a silicon quantum dot spin qubit as a metrological device to study the noise environment experienced by the qubit. We compare the sensitivity of this qubit to electrical noise with that of an implanted silicon-donor qubit in the same environment and measurement setup. Our results show that, as expected, a quantum dot spin qubit is more sensitive to electrical noise than a donor spin qubit due to the larger Stark shift, and the noise-spectroscopy data show pronounced charge-noise contributions at intermediate frequencies (2–20 kHz).
    [Show full text]
  • 1530 Dzurak.Pdf
    Spin-based Quantum Computing in Silicon Andrew Dzurak UNSW - Australia [email protected] Australian National US-Australia Enabling Technologies Exchange Meeting Fabrication Facility Arlington, VA, 13 May 2015 Quantum Information Science Data Security Decryption National Security Financial Services National Security e-Commerce Intelligence Integrated Circuits Killer Apps ? Extending Moore’s Law High Performance Computing Database Searching Bioinformatics Modeling & Design Future Vision for Spin-based QIP Co-Workers & Sponsors UNSW - Australia David Jamieson, Jeff McCallum, Michael Fogarty Lloyd Hollenberg U. Melbourne Wister Huang Steve Flammia, Stephen Bartlett Jason Hwang University of Sydney Yuxin Sun Jarryd Pla, John Morton UCL, UK Ruichen Zhao Jason Cheng, Charles Smith Dr Fay Hudson Cambridge, UK Dr Alessandro Rossi Malcolm Carroll Sandia National Lab Dr Menno Veldhorst Dr Henry Yang Gerhard Klimeck, Rajib Rahman Purdue Dr Juan-Pablo Dehollain Charles Tahan, Rusko Ruskov LPS, USA Dr Fahd Mohiyaddin Kohei Itoh Keio University, Japan Dr Juha Muhonen Mikko Möttönen Aalto, Finland Dr Arne Laucht A/Prof Andrea Morello Floris Zwanenburg Twente, Netherlands Spin Qubits in Semiconductors Si:P Donors: Electron & Nuclear Spin Qubits in 28Si J. Muhonen et al., Nature Nanotechnol. 9, 986 (2014) SiMOS Quantum Dot: Electron Spin Qubit in 28Si M. Veldhorst et al., Nature Nanotechnol. 9, 981 (2014) Spin Qubits in Semiconductors Spin Qubits in Silicon • Long Coherence Times in Silicon at 1K: Nuclear – mins Electron – ms-s • Scalable • Industry “Compatible” B=2T Intel 300 mm Si Wafer 22nm Gate Length Single Atom Nanotechnologies: Top-Down & Bottom-Up Jamieson, Yang, Hopf, O'Brien, Schofield, Hearne, Pakes, Prawer, Simmons, Clark, ASD, Mitic, Gauja, Andresen, Curson, Kane, McAlpine, Hudson, ASD and Clark, Hawley and Brown, Appl.
    [Show full text]
  • Arxiv:1904.08260V2 [Quant-Ph] 28 Jun 2019 Ment Via Electron Shuttling[3]
    A silicon quantum-dot-coupled nuclear spin qubit 1, 1, 1 1 1 1 Bas Hensen, ∗ Wister Wei Huang, ∗ Chih-Hwan Yang, Kok Wai Chan, Jun Yoneda1, Tuomo Tanttu, 1 1 2 3 1 1, Fay E. Hudson, Arne Laucht, Kohei M. Itoh, Thaddeus D. Ladd, Andrea Morello, and Andrew S. Dzurak † 1Centre for Quantum Computation and Communication Technology, School of Electrical Engineering and Telecommunications, The University of New South Wales, Sydney, New South Wales 2052, Australia 2School of Fundamental Science and Technology, Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama 223-8522, Japan 3HRL Laboratories, LLC, 3011 Malibu Canyon Rd., Malibu, CA, 90265, USA Single nuclear spins in the solid state have tion is less confined and typically overlaps with many long been envisaged as a platform for quan- more nuclear spins, leading to undesired effects such tum computing[1–3], due to their long coherence as loss of coherence and spin relaxation[22, 23]. In times[4–6] and excellent controllability[7]. Mea- silicon metal–oxide–semiconductor quantum dots, how- surements can be performed via localised elec- ever, the strong confinement of the electrons against trons, for example those in single atom dopants[8, the Si SiO2 interface, together with the possibility of 9] or crystal defects[10–12]. However, estab- small gate− dimensions, result in a relatively small elec- lishing long-range interactions between multiple tron wavefunction[24], see Fig. 1a,b. This leads to strong dopants or defects is challenging[13, 14]. Con- hyperfine interactions, and when using isotopically en- versely, in lithographically-defined quantum dots, riched 28Si base material, the number of interacting 29Si tuneable interdot electron tunnelling allows di- nuclei may be only a few.
    [Show full text]