Journal of Physics A Mathematical and Theoretical iopscience.org/jphysa Highlights A collection of outstanding research published in 2015 Journal of Physics A: Mathematical and Theoretical ISSN 1751-8113 Journal of Physics A Journal of Physics A Mathematical and Theoretical Journal of Physics A Volume 48 Number 47 27 November 2015 Mathematical and Theoretical PAPERS EXACTLY SOLVED MODELS AND BEYOND:ASPECIAL ISSUE IN HONOUR OF Reasons to publish with RJBAXTER’S 75TH BIRTHDAY 474001 Automata and the susceptibility of the square lattice Ising model modulo powers of primes AJGuttmann and J-M Maillard STATISTICAL PHYSICS 475001 Matter-wavesin Bose–Einstein condensates with spin-orbit and Rabi couplings 474001–475402 47 No 48, Vol Emerson Chiquillo Volume 48 Number 47 27 November 2015 475002 Continuum percolation on nonorientable surfaces: the problem of permeable disks on a Klein bottle VDBorman,AMGrekhov,VNTronin andIVTronin MATHEMATICAL PHYSICS 475201 Random matrix, singularities and open/close intersection numbers EBrezin´ andSHikami 475202 Painleve´ transcendents and -symmetric Hamiltonians Carl M Bender and JavadKomijaniPT Journal of Physics A: QUANTUM MECHANICS AND QUANTUM INFORMATION THEORY 475301 Interacting quantum walkers: two-body bosonic and fermionic bound states PLKrapivsky,JMLuck andKMallick 475302 Quantum entanglement in (d 1)-spherium IVToranzo,ARPlastino,PSanchez-Moreno´− andJSDehesa 475303 The elliptic Gaudin model: a numerical study C Esebbag andJDukelsky FIELD THEORY AND STRING THEORY 475401 Remarks on the geometrical properties of semiclassically quantized strings VForini,VGiangrecoMPuletti,LGriguolo,DSeminara andEVescovi 475402 The current density in quantum electrodynamics in time-dependent external potentials and the Schwinger effect Mathematical and Theoretical Jochen Zahn 27 November 2015 iopscience.org/jphysa Bibliographic codes CODEN: JPHAC5 48 (47) 474001-475402 (2015) ISSN: 1751-8113 A-4847-Cover.indd 4 09/11/2015 10:40 1 HIGHLY CITED Rated as the top publication in mathematical physics in the 2015 Google Scholar metrics, as ranked by the five-year h-index. 2 HIGH STANDARDS Only 28% of submissions were accepted for publication in 2015. 3 FAST PUBLICATION TIMES The average time from acceptance of a paper to online publication is 27 days. 4 LARGE READERSHIP 514,100 full-text articles were downloaded by readers in 2015 and the journal is accessible in almost 3000 institutions. 5 HIGHLY VISIBLE Articles are further disseminated to increase visibility via ‘Insights’, ‘Publisher’s Picks’ and JPhys+. 6 OTHER AUTHOR BENEFITS •No article length limits • Option to make work available as • Option to include supplementary open access information • Online article usage and citation • Enhanced HTML formatting, including metrics MathJax, mobile views and improved • Abstracted in a number of places export options including ISI and Scopus iopscience.org/jphysa Journal of Physics A: Mathematical and Theoretical Welcome Martin Evans Editor-in-Chief Welcome to the Journal of Physics A: Mathematical and Theoretical™ (JPhysA) Highlights collection. This collection shows some of the most highly rated articles published in the journal over the course of 2015. This selection of articles displays the broad scope of the journal and demonstrates how it is a forum for researchers to share mathematically rich work across different disciplines. An exciting development for 2015 has been the launch of the Biological Modelling section for those researchers working in the interdisciplinary field connecting biology and biochemistry with the underlying physical and mathematical models. Some of our most significant articles have been published as Fast Track Communications (FTCs). We are very pleased to announce that from 2016 these concise, outstanding and innovative articles will be published in our newly launched Letters section. This prestigious and dedicated venue is not restricted by a ‘general interest criteria’ and Letters are distinguished from regular articles by ‘LT’ inserted in the article number. There is a dedicated Letters panel of highly respected scientists who are involved in every decision. We do hope that you will consider sending a Letter to this section. Also included in this collection are the Topical Reviews published in 2015, as well as the current and forthcoming Special Issues. We hope that you enjoy this celebration of highlighted articles. From the Publisher Maggie Simmons Publisher This collection highlights some of the excellent papers we published in 2015. We’d like to thank all of our authors for choosing to submit their high-quality work to the journal, and thank our referees and Board Members for providing constructive peer review and maintaining the quality standards of the journal. We hope that you will find this collection of articles interesting and we invite you to consider JPhysA for your next paper. We look forward to working with you during 2016. iopscience.org/jphysa/page/Highlights-of-2015 3 Journal of Physics A: Mathematical and Theoretical Journal of Physics A: Mathematical and Theoretical Contents Editorial Board 5 Fast Track Communications 7 Statistical physics 11 Chaotic and complex systems 18 Mathematical physics 21 Quantum mechanics and quantum information theory 26 Field theory and string theory 33 Fluid and plasma theory 39 Topical Reviews 43 2015 Special Issues 44 Forthcoming Special Issues 45 Best Paper Prize 46 Cover image: an artistic interpretation of the periodic and multispecies asymmetric simple exclusion process. Alexandre Lazarescu 2015 J. Phys. A: Math. Theor. 48 503001. 4 iopscience.org/jphysa/page/Highlights-of-2015 Journal of Physics A: Mathematical and Theoretical Journal of Physics A: Mathematical and Theoretical Editorial Board Editor-in-Chief M R Evans University of Edinburgh, UK Statistical Physics Editor Field Theory and String Theory Editor P Sollich King’s College London, UK J A Minahan Uppsala Universitet, Sweden Chaotic and Complex Systems Editor Fluid and Plasma Theory Editor A Pikovsky Universität Potsdam, Germany S Nazarenko University of Warwick, UK Mathematical Physics Editor Biological Modelling Editor A Kuniba The University of Tokyo, Japan R Metzler Universität Potsdam, Germany Quantum Mechanics and Quantum Information Topical Reviews Editor Theory Editor M Batchelor Chongqing University, People’s O Gühne Universität Siegen, Germany Republic of China and Australian National University, Canberra, Australia Editorial Board J Krug University of Cologne, Germany N Beisert ETH, Zurich, Switzerland I Lesanovsky University of Nottingham, UK M V Berry University of Bristol, UK K Lindenberg University of California, San Diego, USA D C Brody Brunel University London, Uxbridge, UK C Maes Katholieke Universiteit Leuven, Belgium P Calabrese SISSA—International School for M Murao University of Tokyo, Japan Advanced Studies, Italy R I Nepomechie University of Miami, USA J-S Caux Universiteit van Amsterdam, the Netherlands A M Ozorio de Almeida Centro Brasileiro de G Chiribella University of Hong Kong Pesquisas Físicas, Rio de Janeiro, Brazil M-Y Choi Seoul National University, Korea A Pumir Ecole Normale Supérieure de Lyon, France D Dhar Tata Institute of Fundamental Research, India LH Tang Beijing Computational Science Research P E Dorey University of Durham, UK Centre, China J Eisert Freie Universität Berlin, Germany R Tumulka Rutgers University, USA P Fendley University of Virginia, USA L Viola Dartmouth College, USA M J W Hall Griffith University, Australia A Vulpiani Università di Roma ‘La Sapienza’, Italy P Jarvis University of Tasmania, Australia Y Wang Chinese Academy of Sciences, Beijing, China Y Kafri Technion- Israel Institute of Technology, Israel P Wiegmann University of Chicago, USA K Kajiwara Kyushu University, Japan M Wolf Technische Universität München G Korchemsky Université de Paris-Sud, France R Ziff University of Michigan, USA P Krapivsky Boston University, USA Letters Editorial Panel A Kupiainen University of Helsinki, Finland D Bernard Ecole Normale Supérieure de Paris, France S Majumdar Université Paris-Sud, France L Cugliandolo Université Pierre et Marie Curie, France J Moore University of California, Berkeley, USA P Dorey Durham University, UK H Tasaki Gakushuin University, Japan P Drummond Swinburne Univ. of Technology, Australia A Tseytlin Imperial College London, UK M Gaberdiel ETH Zürich, Switzerland P Wiegmann University of Chicago, USA iopscience.org/jphysa/page/Highlights-of-2015 5 Journal of Physics A: Mathematical and Theoretical Journal of Physics A: Mathematical and Theoretical Fast track your research with Journal of Physics A: Mathematical and Theoretical Letters are outstanding short papers reporting new and timely developments in mathematical and theoretical physics. Letters • are intended for high-quality research, reporting significant new results • are not required to meet any criteria of ‘general interest’, conjectural articles are welcome • are concise, typically not exceeding nine journal pages or 6500 words in length • receive fast publication, typically published online within 55 days of submission • are assessed by our dedicated Letters Editorial Panel Letters Editorial Panel Denis Bernard Ecole Normale Supérieure de Paris, France Leticia Cugliandolo Université Pierre et Marie Curie, France Patrick Dorey Durham University, UK Peter Drummond Swinburne University of Technology, Australia Matthias Gaberdiel ETH Zürich, Switzerland Antti Kupiainen University of Helsinki, Finland Satya Majumdar Université Paris-Sud,