2017 Annual Report
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Non-Thermal Behavior in Conformal Boundary States
Prepared for submission to JHEP Non-Thermal Behavior in Conformal Boundary States Kevin Kuns and Donald Marolf Department of Physics, University of California, Santa Barbara, CA 93106, U.S.A. E-mail: [email protected], [email protected] Abstract: Cardy has recently observed that certain carefully tuned states of 1+1 CFTs on a timelike strip are periodic with period set by the light-crossing time. The states in question are defined by Euclidean time evolution of conformal boundary states associated with the particular boundary conditions imposed on the edges of the strip. We explain this behavior, and the associated lack of thermalization, by showing that such states are Lorentz-signature conformal transformations of the strip ground state. Taking the long- strip limit implies that states used to model thermalization on the Minkowski plane admit non-thermal conformal extensions beyond future infinity of the Minkowski plane, and thus retain some notion of non-thermal behavior at late times. We also comment on the holo- graphic description of these states. arXiv:1406.4926v2 [cond-mat.stat-mech] 6 Oct 2014 Contents 1 Introduction1 2 Periodicity and Tuned Rectangle States2 2.1 Tuned Rectangle States from Conformal Transformations2 2.2 One-Point Functions5 3 Conformal Transformations to the Thermal Minkowski Plane9 4 Discussion 12 A Holographic Description 13 1 Introduction The rapid change in a quantum system from a Hamiltonian H0 to a Hamiltonian H is known as a quantum quench. Quantum quenches are of experimental interest since they can be studied in laboratory systems involving ultracold atoms. They are also of theoretical interest as examples of out of equilibrium quantum systems whose thermalization, or lack thereof, can be used as a first step towards understanding thermalization in more general quantum systems. -
A First Law of Entanglement Rates from Holography
A First Law of Entanglement Rates from Holography Andy O'Bannon,1, ∗ Jonas Probst,2, y Ronnie Rodgers,1, z and Christoph F. Uhlemann3, 4, x 1STAG Research Centre, Physics and Astronomy, University of Southampton, Highfield, Southampton SO17 1BJ, U. K. 2Rudolf Peierls Centre for Theoretical Physics, University of Oxford, 1 Keble Road, Oxford OX1 3NP, U. K. 3Department of Physics, University of Washington, Seattle, WA 98195-1560, USA 4Mani L. Bhaumik Institute for Theoretical Physics, Department of Physics and Astronomy, University of California, Los Angeles, CA 90095, USA For a perturbation of the state of a Conformal Field Theory (CFT), the response of the entanglement entropy is governed by the so-called “first law" of entanglement entropy, in which the change in entanglement entropy is proportional to the change in energy. Whether such a first law holds for other types of perturbations, such as a change to the CFT La- grangian, remains an open question. We use holography to study the evolution in time t of entanglement entropy for a CFT driven by a t-linear source for a conserved U(1) current or marginal scalar operator. We find that although the usual first law of entanglement entropy may be violated, a first law for the rates of change of entanglement entropy and energy still holds. More generally, we prove that this first law for rates holds in holography for any asymptotically (d + 1)-dimensional Anti-de Sitter metric perturbation whose t dependence first appears at order zd in the Fefferman-Graham expansion about the boundary at z = 0. -
Reading in Fall 2003'S Inside Physics
FFromrom thethe ChairChair available in the fall of 2001. Visits elcome to the first edition of our by prospective students nearly newsletter, created to keep us in doubled the number for the newsletter, created to keep us in previous year, and 33 new Wclose touch with our alumni and graduate students appeared in the friends. We’d like to hear your reaction: fall of 2001. We were especially friends. We’d like to hear your reaction: pleased that 30% of the entering what’s satisfying, what’s not, what’s class were women. I hope this is missing. Please let us know. no “fluke” and that we continue missing. Please let us know. to increase the participation of women in physics. The applica- tions for the fall of 2002 number Jim Allen over 500 and we look forward to Department Chair enrolling another strong class. OUR FUTURE Three new faculty joined our als. And Walter himself, the EXCITING TIMES ranks: Crystal Martin, an observa- founding director of the Institute “You can dismiss one Nobel Prize tional astrophysicist from Caltech; for Theoretical Physics, received as a statistical fluke,” Walter Kohn David Stuart, a high energy the 1998 prize in chemistry. remarked, “but a spate of three experimental physicist from Fermi signals something important and Lab; and Dik Bouwmeester from exciting happening at UCSB.” ENDOWED CHAIR Oxford, who works on quantum We are delighted that a chair in The three Nobels reflect UCSB’s optics and experimental quantum experimental physics has been longstanding commitment to information science. We continue endowed by Bruce and Susan excellence in science and engi- to search for new faculty in Worster. -
Quantum Quenches: a Probe of Many-Body Quantum Mechanics
Tata Institute of Fundamental Research Hyderabad Colloquium John Cardy University of California, Berkeley Professor John Cardy is well known for his application of quantum field theory and the renormalization group to condensed matter, especially to critical phenomena in both pure and disordered equilibrium and non-equilibrium systems. In the 1980s he helped develop the theory of conformal invariance and its applications to these problems, ideas which also had an impact in string theory and the physics of black holes. In the 1990s he used conformal invariance to derive many exact results in percolation and related probabilistic problems. More recently Professor Cardy has worked on questions of quantum entanglement and non-equilibrium dynamics in many-body systems. He is a Fellow of the Royal Society, a recipient of the 2000 Dirac Medal of the Institute of Physics, of the 2004 Lars Onsager Prize of the American Physical Society, of the 2010 Boltzmann Medal of the International Union of Pure and Applied Physics, and of the 2011 Dirac Medal and Prize of the International Centre for Theoretical Physics. Professor Cardy has a long-standing association with TIFR, and visited our Mumbai campus in 2007-08 as the Homi Bhabha Chair Professor. Quantum Quenches: a probe of many-body quantum mechanics In a quantum quench, a system is prepared in some state (typically the ground state of an initial hamiltonian) and then evolved coherently with a different hamiltonian, e.g. by instantaneously changing a parameter. Such protocols in many-body systems have recently become experimentally achievable with ultracold atoms. I shall discuss some of the theoretical approaches to this problem, and in particular discuss whether, and in what sense, such systems thermalize. -
Conceptual Investigations of a Trigger Extension for Muons from Pp Collisions in the CMS Experiment
Conceptual investigations of a trigger extension for muons from pp collisions in the CMS experiment Von der Fakult¨at fur¨ Mathematik, Informatik und Naturwissenschaften der RWTH Aachen University zur Erlangung des akademischen Grades eines Doktors der Naturwissenschaften genehmigte Dissertation vorgelegt von Diplom-Physiker Yusuf Erdogan aus Istanbul Berichter: Universit¨atsprofessor Dr. rer. nat. Achim Stahl Universit¨atsprofessor Dr. rer. nat. Thomas Hebbeker Tag der mundlic¨ hen Prufung¨ : 24. Februar 2015 Diese Dissertation ist auf den Internetseiten der Hochschulbibliothek online verfu¨gbar. Kurzfassung Der Large Hadron Collider wird ab 2023 an seine Experimente fun¨ f bis zehn mal mehr Lu- minosit¨at als der derzeitige Designwert von 1034 cm−2s−1 liefern k¨onnen. Diese Verbes- serung wird die Messung von physikalischen Prozessen mit sehr kleinen Wirkungsquer- schnitten erlauben. Jedoch wird bei diesen hohen Luminosit¨aten, aufgrund von Pile-up Wechselwirkungen, die Belegung des CMS-Detektors sehr hoch sein. Dies wird einer- seits einen systematischen Anstieg von Triggerraten fur¨ einzelne Myonen verursachen, Andererseits werden die Fehlmessungen von Myon-Transversalimpulsen, verst¨arkt durch die begrenzte Impulsaufl¨osung des Myon-Systems, fur¨ hohe Impulswerte dominant sein. In diesem Bereich flacht die Verteilung der Triggerrate ab, was die Beschr¨ankung der Triggerrate durch eine Schwelle der Transversalimpulse erschwert. Außerdem wird die Qualit¨at des Triggers fu¨r einzelne Myonen durch koinzidente Teilchendurchg¨ange ver- ringert, da diese zu Doppeldeutigkeiten in den innersten Myonkammern fuh¨ ren k¨onnen. Im Rahmen der Ver¨offentlichung [2] wurde im Jahr 2007 ein Muon Track fast Tag (MTT) genanntes Konzept vorgestellt, um diese Trigger-Herausforderungen zu adressieren. Die, in dieser Arbeit durchgefuh¨ rten Studien sind in drei Abschitte unterteilt. -
Benjamin J. Owen - Curriculum Vitae
BENJAMIN J. OWEN - CURRICULUM VITAE Contact information Mail: Texas Tech University Department of Physics & Astronomy Lubbock, TX 79409-1051, USA E-mail: [email protected] Phone: +1-806-834-0231 Fax: +1-806-742-1182 Education 1998 Ph.D. in Physics, California Institute of Technology Thesis title: Gravitational waves from compact objects Thesis advisor: Kip S. Thorne 1993 B.S. in Physics, magna cum laude, Sonoma State University (California) Minors: Astronomy, German Research advisors: Lynn R. Cominsky, Gordon G. Spear Academic positions Primary: 2015{ Professor of Physics & Astronomy Texas Tech University 2013{2015 Professor of Physics The Pennsylvania State University 2008{2013 Associate Professor of Physics The Pennsylvania State University 2002{2008 Assistant Professor of Physics The Pennsylvania State University 2000{2002 Research Associate University of Wisconsin-Milwaukee 1998{2000 Research Scholar Max Planck Institute for Gravitational Physics (Golm) Secondary: 2015{2018 Adjunct Professor The Pennsylvania State University 2012 (2 months) Visiting Scientist Max Planck Institute for Gravitational Physics (Hanover) 2010 (6 months) Visiting Associate LIGO Laboratory, California Institute of Technology 2009 (6 months) Visiting Scientist Max Planck Institute for Gravitational Physics (Hanover) Honors and awards 2017 Princess of Asturias Award for Technical and Scientific Research (with the LIGO Scientific Collaboration) 2017 Albert Einstein Medal (with the LIGO Scientific Collaboration) 2017 Bruno Rossi Prize for High Energy Astrophysics (with the LIGO Scientific Collaboration) 2017 Royal Astronomical Society Group Achievement Award (with the LIGO Scientific Collab- oration) 2016 Gruber Cosmology Prize (with the LIGO Scientific Collaboration) 2016 Special Breakthrough Prize in Fundamental Physics (with the LIGO Scientific Collabora- tion) 2013 Fellow of the American Physical Society 1998 Milton and Francis Clauser Prize for Ph.D. -
Inside the Perimeter Is Published by Perimeter Institute for Theoretical Physics
the Perimeter fall/winter 2014 Skateboarding Physicist Seeks a Unified Theory of Self The Black Hole that Birthed the Big Bang The Beauty of Truth: A Chat with Savas Dimopoulos Subir Sachdev's Superconductivity Puzzles Editor Natasha Waxman [email protected] Contributing Authors Graphic Design Niayesh Afshordi Gabriela Secara Erin Bow Mike Brown Photographers & Artists Phil Froklage Tibra Ali Colin Hunter Justin Bishop Robert B. Mann Amanda Ferneyhough Razieh Pourhasan Liz Goheen Natasha Waxman Alioscia Hamma Jim McDonnell Copy Editors Gabriela Secara Tenille Bonoguore Tegan Sitler Erin Bow Mike Brown Colin Hunter Inside the Perimeter is published by Perimeter Institute for Theoretical Physics. www.perimeterinstitute.ca To subscribe, email us at [email protected]. 31 Caroline Street North, Waterloo, Ontario, Canada p: 519.569.7600 f: 519.569.7611 02 IN THIS ISSUE 04/ Young at Heart, Neil Turok 06/ Skateboarding Physicist Seeks a Unified Theory of Self,Colin Hunter 10/ Inspired by the Beauty of Math: A Chat with Kevin Costello, Colin Hunter 12/ The Black Hole that Birthed the Big Bang, Niayesh Afshordi, Robert B. Mann, and Razieh Pourhasan 14/ Is the Universe a Bubble?, Colin Hunter 15/ Probing Nature’s Building Blocks, Phil Froklage 16/ The Beauty of Truth: A Chat with Savas Dimopoulos, Colin Hunter 18/ Conference Reports 22/ Back to the Classroom, Erin Bow 24/ Finding the Door, Erin Bow 26/ "Bright Minds in Their Life’s Prime", Colin Hunter 28/ Anthology: The Portraits of Alioscia Hamma, Natasha Waxman 34/ Superconductivity Puzzles, Colin Hunter 36/ Particles 39/ Donor Profile: Amy Doofenbaker, Colin Hunter 40/ From the Black Hole Bistro, Erin Bow 42/ PI Kids are Asking, Erin Bow 03 neil’s notes Young at Heart n the cover of this issue, on the initial singularity from which everything the lip of a halfpipe, teeters emerged. -
Curriculum Vitae
CURRICULUM VITAE Raman Sundrum July 26, 2019 CONTACT INFORMATION Physical Sciences Complex, University of Maryland, College Park, MD 20742 Office - (301) 405-6012 Email: [email protected] CAREER John S. Toll Chair, Director of the Maryland Center for Fundamental Physics, 2012 - present. Distinguished University Professor, University of Maryland, 2011-present. Elkins Chair, Professor of Physics, University of Maryland, 2010-2012. Alumni Centennial Chair, Johns Hopkins University, 2006- 2010. Full Professor at the Department of Physics and Astronomy, The Johns Hopkins University, 2001- 2010. Associate Professor at the Department of Physics and Astronomy, The Johns Hop- kins University, 2000- 2001. Research Associate at the Department of Physics, Stanford University, 1999- 2000. Advisor { Prof. Savas Dimopoulos. 1 Postdoctoral Fellow at the Department of Physics, Boston University. 1996- 1999. Postdoc advisor { Prof. Sekhar Chivukula. Postdoctoral Fellow in Theoretical Physics at Harvard University, 1993-1996. Post- doc advisor { Prof. Howard Georgi. Postdoctoral Fellow in Theoretical Physics at the University of California at Berke- ley, 1990-1993. Postdoc advisor { Prof. Stanley Mandelstam. EDUCATION Yale University, New-Haven, Connecticut Ph.D. in Elementary Particle Theory, May 1990 Thesis Title: `Theoretical and Phenomenological Aspects of Effective Gauge Theo- ries' Thesis advisor: Prof. Lawrence Krauss Brown University, Providence, Rhode Island Participant in the 1988 Theoretical Advanced Summer Institute University of Sydney, Australia B.Sc with First Class Honours in Mathematics and Physics, Dec. 1984 AWARDS, DISTINCTIONS J. J. Sakurai Prize in Theoretical Particle Physics, American Physical Society, 2019. Distinguished Visiting Research Chair, Perimeter Institute, 2012 - present. 2 Moore Fellow, Cal Tech, 2015. American Association for the Advancement of Science, Fellow, 2011. -
AAS Newsletter (ISSN 8750-9350) Is Amateur
AASAAS NNEWSLETTEREWSLETTER March 2003 A Publication for the members of the American Astronomical Society Issue 114 President’s Column Caty Pilachowski, [email protected] Inside The State of the AAS Steve Maran, the Society’s Press Officer, describes the January meeting of the AAS as “the Superbowl 2 of astronomy,” and he is right. The Society’s Seattle meeting, highlighted in this issue of the Russell Lecturer Newsletter, was a huge success. Not only was the venue, the Reber Dies Washington State Convention and Trade Center, spectacular, with ample room for all of our activities, exhibits, and 2000+ attendees at Mt. Stromlo Observatory 3 Bush fires in and around the Council Actions the stimulating lectures in plenary sessions, but the weather was Australian Capital Territory spectacular as well. It was a meeting packed full of exciting science, have destroyed much of the 3 and those of us attending the meeting struggled to attend as many Mt. Stromlo Observatory. Up- Election Results talks and see as many posters as we could. Many, many people to-date information on the stopped me to say what a great meeting it was. The Vice Presidents damage and how the US 4 and the Executive Office staff, particularly Diana Alexander, deserve astronomy community can Astronomical thanks from us all for putting the Seattle meeting together. help is available at Journal www.aas.org/policy/ Editor to Retire Our well-attended and exciting meetings are just one manifestation stromlo.htm. The AAS sends its condolences to our of the vitality of the AAS. Worldwide, our Society is viewed as 8 Australian colleagues and Division News strong and vigorous, and other astronomical societies look to us as stands ready to help as best a model for success. -
Curriculum Vitae
Curriculum Vitae Luis R. Lehner April 2020 1 Personal Data: Name and Surname: Luis R. LEHNER Marital Status: Married Date of Birth: July 17th. 1970 Current Address: Perimeter Institute for Theoretical Physics, 31 Caroline St. N. Waterloo, ON, N2L 2Y5 Canada Tel.: 519) 569-7600 Ext 6571 Mail Address: [email protected] Fax: (519) 569-7611 2 Education: • Ph.D. in Physics; University of Pittsburgh; 1998. Title: Gravitational Radiation from Black Hole spacetimes. Advisor: Jeffrey Winicour, PhD. • Licenciado en F´ısica;FaMAF, Universidad Nacional de C´ordoba;1993. Title: On a Simple Model for Compact Objects in General Relativity. Advisor: Osvaldo M. Moreschi, PhD. 3 Awards, Honors & Fellowships • \TD's 10 most influential Hispanic Canadian" 2019. • \Resident Theorist" for the Gravitational Wave International Committee 2018-present. • Member of the Advisory Board of the Kavli Institute for Theoretical Physics (UCSB) 2016-2020. • Executive Committee Member of the CIFAR programme: \Gravity and the Extreme Universe" 2017-present. • Member of the Scientific Council of the ICTP South American Institute for Fundamental Research (ICTP- SAIFR) 2015-present. • Fellow International Society of General Relativity and Gravitation, 2013-. • Discovery Accelerator Award, NSERC, Canada 2011-2014. • American Physical Society Fellow 2009-. • Canadian Institute for Advanced Research Fellow 2009-. 1 • Kavli-National Academy of Sciences Fellow 2008, 2017. • Louisiana State University Rainmaker 2008. • Baton Rouge Business Report Top 40 Under 40. 2007. • Scientific Board Member of Teragrid-NSF. 2006-2009. • Institute of Physics Fellow. The Institute of Physics, UK, 2004 -. • Phi Kappa Phi Non-Tenured Faculty Award in Natural and Physical Sciences. Louisiana State University, 2004. • Canadian Institute for Advanced Research Associate Member, 2004 -. -
Annual Report for the Fiscal Year Julyl, 1984 -June 30, 1985
The Institute for Advanced Study Annual Report 1984/85 The Institute for Advanced Study Annual Report for the Fiscal Year Julyl, 1984 -June 30, 1985 HISTtffilCAl STUDIES- SOCIAL SCIENCE UBRARY THE INSTITUTE FOR ADVANCED STUDY PRINCETON. NEW JERSEY 08540 The Institute for Advanced Study Olden Lane Princeton, New Jersey 08540 U.S.A. Printed by Princeton University Press Originally designed by Bruce Campbell 9^^ It is fundamental to our purpose, and our Extract from the letter addressed by the express desire, that in the appointments to the Founders to the Institute's Trustees, staff and faculty, as well as in the admission dated June 6, 1930, Newark, New Jersey. of workers and students, no account shall he taken, directly or indirectly, of race, religion or sex. We feel strongly that the spirit characteristic of America at its noblest, above all, the pursuit of higher learning, cannot admit of any conditions as to personnel other than those designed to promote the objects for which this institution is established, and particularly with no regard wliatever to accidents of race, creed or sex. 9^'^Z^ Table of Contents Trustees and Officers 9 Administration 10 The Institute for Advanced Study: Background and Purpose 11 Report of the Chairman 13 Report of the Director 15 Reports of the Schools 21 School of Historical Studies 23 School of Mathematics 35 School of Natural Sciences 45 School of Social Science 59 Record of Events, 1984-85 67 Report of the Treasurer 91 Donors 102 Founders Caroline Bamberger Fuld Louis Bamberger Board of Trustees John F. Akers Ralph E. -
T R U S T E D . V a L U E D . E S S E N T I A
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