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Quantum Information a Showcase of Cutting-Edge Research Taken from Selected Journals and Physics World quantum information A showcase of cutting-edge research taken from selected journals and Physics World. iopscience.org/quantum-information contents Introduction 3 Classical and Quantum Gravity 4 EPL 6 Journal of Physics A: Mathematical and Theoretical 8 Journal of Physics B: Atomic, Molecular and Optical Physics 10 Journal of Physics: Condensed Matter 12 New Journal of Physics 14 Physica Scripta 16 Quantum Electronics 18 Reports on Progress in Physics 20 Superconductor Science and Technology 22 Physics World 24 Additional content 26 How to submit your quantum information research 28 Stay updated on quantum information Interested in other areas by visiting the online collection at iopscience.org/quantum-information. of science? Scan this Latest articles, special issues, videos Visit our subject collections homepage to QR code to go directly and news will be posted regularly. explore similar collections in other key topics. to the online collection iopscience.org/subjects quantum information The development of quantum physics at the beginning of the 20th century provoked both shock and disbelief in the community. It also stimulated a lot of new ideas. The definition of a system that could exist in a multiple number of states ‘entangled’ with each other bred a wealth of novel approaches for handling information. A hundred years on and research into quantum information continues to yield surprises and inspire yet more fruitful activity, prompting a number of special issues in many of IOP Publishing’s journals. The Quantum Information landing page presents the latest research developments, as well as reviews that place current research in context. Readers can browse by topic from 10 different IOP Publishing journals in subject categories that include: • Topological quantum computation • Quantum cryptography and communication • Quantum tomography • Quantum simulation • Quantum measurement and open systems • Solid-state quantum computation • Quantum control and engineering • Quantum entanglement and nonlocality The page provides a one-stop portal that ensures optimum visibility for our authors among their peers, and ease of access for our readers to stay up to date with the leading research in a field that continues to fascinate not just in academia but in industry, and resonates with the general public as well. iopscience.org/quantum-information 3 Classical and Quantum Gravity ISSN 0264-9381 Classical and Quantum Gravity is the world’s Classicaland QuantumGravity leading journal covering all aspects of gravitational physics and related areas of cosmology, geometry and field theory. Volume 29 Number 1 7 January 2012 An international journal of gravitational physics, cosmology, geometry and field theory The articles selected here represent a focus issue on ‘relativistic quantum information’, including a comprehensive review article, and some interesting original research on optical black hole lasers. The full focus issue is available on our homepage. iopscience.org/cqg The journal boasts the best peer review in the field, supported by an international editorial board. The scope of the journal includes, but is not limited to: Did you know? Classical general relativity We provide the option of hybrid • Applications of relativity open access publishing. • • Experimental gravitation • Cosmology and the early universe Did you know? • Quantum gravity Supergravity, superstrings and supersymmetry Classical and Quantum Gravity • Mathematical physics publishes Fast Track • Communications, which are short articles of 8 pages or The readership is broad, comprising gravitational fewer, presenting new and theorists and experimentalists in physics, mathematics highly interesting results. and cosmology, and all articles published contain a summary that places the findings in the wider context of gravitational physics. iopscience.org/cqg 4 iopscience.org/quantum-information FEATURED ARTICLE The black-hole/qubit correspondence: an up-to-date review Leron Borsten et al 2012 Class. Quantum Grav. 22 430743. Abstract We give a review of the black-hole/qubit correspondence that incorporates not only the earlier results on black hole entropy and entanglement measures, seven qubits and the Fano plane, wrapped branes as qubits andthe attractor mechanism as a distillation procedure, but also newer material including error-correcting codes, Mermin squares, Freudenthal triples and 4-qubit entanglement classification. MORE HIGH-INTEREST ARTICLES Cosmological quantum entanglement Eduardo Martin-Martinez et al 2012 Class. Quantum Grav. 22 430740 Relativistic quantum information in detectors-field interactions Bei-Lok Hu et al 2012 Class. Quantum Grav. 22 430346 Optical black hole lasers Daniele Faccio et al 2012 Class. Quantum Grav. 22 431687 Fundamental quantum optics experiments conceivable with satellites – reaching relativistic distances and velocities David P Rideout et al 2012 Class. Quantum Grav. 22 436906 ) To read the full articles, visit iopscience.org/quantum-information iopscience.org/quantum-information 5 EPL In recent years EPL has gained considerable strength in quantum information topics, including visibility and promotion at conferences and workshops and sponsoring of prizes for best posters or for presentations by young researchers at targeted events. Articles published cover theory and fundamental physics, emerging technologies, communications, optics, cryptography and simulators. Several articles have been selected here to introduce the broad scope available for authors in EPL. Did you know? Owned by an association of 17 European physical societies, We provide the option of hybrid EPL publishes Letters that cover the broadest range of open access publishing. physics topics and related scientific fields. These short publications are focused towards novel, scientifically significant, emerging and developing areas of science Did you know? including many high-profile topics such as quantum EPL is owned by an assocation simulators, topological insulators, metamaterials, of 17 European physical plasmonics, ferro-electrics/magnetics and rheology. societies. Targeted marketing ensures that the Letters published gain Published in partnership with: recognition within their relevant fields. This is supported on the website, which now hosts several compilation webpages providing authors with easy access to recent articles published relating to their specialist areas. The compilation listing can be found at epljournal.org/compilations. epljournal.org 6 iopscience.org/quantum-information FEATURED ARTICLE Quantum noise in three-dimensional BRC interferometry B Opanchuk, M Egorov, S Hoffmann, A I Sidorov and P D Drummond 2012 EPL 97 50003 Abstract We develop a theory of quantum fluctuations and squeezing in a three-dimensional Bose-Einstein condensate atom interferometer with nonlinear losses. We use stochastic equations in a truncated Wigner representation to treat quantum noise. Our approach includes the multi-mode spatial evolution of spinor components and describes the many-body dynamics of a mesoscopic quantum system. MORE HIGH-INTEREST ARTICLES Quantum refrigerator driven by current noise Yi-Xin Chen & Sheng-Wen 2012 EPL 97 40003 Coherent vortex structures in quantum turbulence A W Baggaley, C F Barenghi, A Shukurov and Y A Sergeev 2012 EPL 98 26002 Transversal propagation of helical edge states in quantum spin Hall systems Feng Lu, Yuan Zhou, Jin An and Chang-De Gong 2012 EPL 98 17004 Quantum game of life D Bleh, T Calarco and S Montangero 2012 EPL 97 20012 ) To read the full articles, visit iopscience.org/quantum-information iopscience.org/quantum-information 7 Journal of Physics A: Mathematical and Theoretical ISSN 1751-8113 Journal of Physics A: Mathematical and Journal of Physics A Theoretical is a major journal of theoretical physics reporting research on the mathematical structures that describe fundamental processes Volume 45 Number 36 14 September 2012 of the physical world and on the analytical, computational and numerical methods for exploring these structures. The journal’s dedicated quantum mechanics and quantum information theory section publishes high-quality original research articles that cover all aspects of quantum iopscience.org/jphysa information theory, including entanglement, quantum tomography, quantum measurement theory and quantum Worldwide visibility cryptography, communication and computation. For example, the featured article by Wiebe et al shows explicitly more than how to simulate time-dependant sparse Hamiltonian 575,000 evolution on a quantum computer. full-text downloads in 2011 Included in this selection are some of the most high-impact and popular articles in this area that have been published in Journal of Physics A. However, these papers are just a Fast publication sample of the high-quality work we publish in the field of Average receipt to first decision quantum information theory. Visit the journal homepage time in 2011 was to read more. 34 days iopscience.org/jphysa 8 iopscience.org/quantum-information FEATURED ARTICLE Simulating quantum dynamics on a quantum computer Nathan Wiebe, Dominic W Berry, Peter Høyer and Barry C Sanders 2011 J. Phys. A: Math. Theor. 44 445308 Abstract We explicitly show how to simulate time-dependent sparse Hamiltonian evolution on a quantum computer, with complexity that is close to linear in the evolution time. The complexity also depends on the magnitude of the derivatives of the Hamiltonian. We propose a range of techniques to simulate Hamiltonians with badly behaved derivatives.
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