Abstract At the end of December 2021, there was held online the annual, fifteenth in a row, All-Russian Conference on Physics of Ultracold Atoms, in which scientists from other countries took part. Over the past years, this conference has changed dramatically: from a one-day workshop of participants in the integration projects of the Siberian Branch of the Russian Academy of Sciences, where the results of the year were summed up, into a full-scale All-Russian conference with a wide geographic coverage of participants from Vladivostok to Voronezh. Foreign scientists also took an active part in the work of the conference, but until recently they were Russianspeaking researchers, and so Russian remained the working language of the conference. In 2021, an important step was taken towards its transition to a full-fledged international format. Russian and English became the working languages, and in order to increase the level and significance of the conference, as well as to deepen international cooperation in this field of physics, a number of foreign scientists were invited.
Abstract At the end of December 2021, there was held online the annual, fifteenth in a row, All-Russian Conference on Physics of Ultracold Atoms, in which scientists from other countries took part. Over the past years, this conference has changed dramatically: from a one-day workshop of participants in the integration projects of the Siberian Branch of the Russian Academy of Sciences, where the results of the year were summed up, into a full-scale All-Russian conference with a wide geographic coverage of participants from Vladivostok to Voronezh. Foreign scientists also took an active part in the work of the conference, but until recently they were Russianspeaking researchers, and so Russian remained the working language of the conference. In 2021, an important step was taken towards its transition to a full-fledged international format. Russian and English became the working languages, and in order to increase the level and significance of the conference, as well as to deepen international cooperation in this field of physics, a number of foreign scientists were invited.
The study of Bose-Einstein condensation has undergone a remarkable expansion during the last twenty years. Observations of this phenomenon have been reported in a number of diverse atomic, optical, and condensed matter systems, facilitated by remarkable experimental advances. The synergy of experimental and theoretical work in this broad research area is unique, leading to the establishment of Bose-Einstein condensation as a universal interdisciplinary area of modern physics. This chapter reviews the broad expansion of Bose-Einstein condensation physics in the past two decades. Introduction The field of Bose-Einstein condensation (BEC) has undergone an explosive expansion during the past twenty years. Newcomers to this field are now often introduced to this as a universal phenomenon, which nonetheless exhibits diverse (and sometimes strikingly different) manifestations. Despite such differences, the common underlying theme creates a unique identity across many different energy and length scales. The study of BEC as a universal phenomenon was highlighted in a focused conference in 1993, leading to the publication of the well-known “green book” [1], which surveyed the breadth of the field of condensate physics at that time. The success of the conference led to a second meeting in 1995, at which Eric Cornell and Carl Wieman announced the achievement of Bose-Einstein condensation of ultracold 87 Rb atoms in a harmonic trap. That work began an explosion of new research in the field of cold atoms, which has continued to this day, and this very success inevitably led many of those studying cold atoms to pay less attention to other types of condensates. Wolfgang Ketterle gives a historical overview of this exciting period of time in Chapter 3. Recently, various scientific meetings have worked to re-establish the physical connections across different BEC systems, and in 2013 a workshop was held with the focused goal of improving communications across disciplines. This present book is an outgrowth of that meeting. The Situation Before the Revolution Because of the great success of the cold atom BEC and other BEC systems in the past twenty years, it may be hard for young scientists to understand the climate of BEC research in the early 1990s. At that time, there was only one known example of BEC, namely liquid helium-4, and there was a small but vocal minority of scientists who questioned whether BEC was established even in that system.
PREFACE The papers selected for this volume were reported at the International Symposium 'Optics and its applications' (OPTICS-2011, Yerevan & Ashtarak, Armenia, September 5–9, 2011), http://www.ipr.sci.am/optics2011/ . The Symposium was organized by the SPIE Armenian Student Chapter and major Armenian R&D organizations, universities and industrial companies working in the field of basic and applied optics: Institute for Physical Research of the National Academy of Sciences of Armenia, Yerevan State University, Russian–Armenian (Slavonic) University, and LT-PYRKAL Closed Joint Stock Company. OPTICS-2011 was primarily intended to support and promote the involvement of students and young scientists in various fields of modern optics, giving them the possibility to attend invited talks by prominent scientists and to present and discuss their own results. Furthermore, the Symposium allowed foreign participants from 14 countries to become acquainted with the achievements of optical science and technology in Armenia, which became a full member of the International Commission for Optics (ICO) in 2011. To follow this concept, the Symposium sessions were held in various host institutions. The creative and friendly ambience established at OPTICS-2011 promoted further international collaboration in the field and motivated many students to take up research in optics and photonics as a career. This volume of Journal of Physics: Conference Series covers thematic sections of the Symposium (both oral and poster), which represent the main fields of interest in optics for Armenian scientists: quantum optics & information, laser spectroscopy, optical properties of nanostructures, photonics & fiber optics, and optics of liquid crystals. Such wide coverage is consistent with the general scope of the Symposium, allowing all the students involved in optics to present, discuss and publish their recent results, and for those who are making their first steps in science to choose the direction of their further studies. We are confident that the publication of the Symposium proceedings in JPCS , a worldwide-known open access journal, will help to disseminate and promote current activities in optics, thus facilitating international cooperation and the integration of Armenian scientists into the worldwide optical community. We would like to thank the sponsors of the Symposium: National Foundation of Science and Advanced Technologies (NFSAT), The Abdus Salam International Centre for Theoretical Physics (ICTP), LT-PYRKAL, State Committee of Science of Armenia, Russian–Armenian (Slavonic) University, and Devout Generation Foundation. We also express our gratitude to the members of the Program Committee for their organization of the manuscript reviewing. Special thanks go to Narine Gevorgyan, Lilit Mantashyan and Paytsar Mantashyan for their invaluable assistance in the compilation of this issue. The Editors, Aranya B Bhattacherjee , University of Delhi, India Maria L Calvo , Universidad Complutense de Madrid, Spain Eduard M Kazaryan , Russian–Armenian (Slavonic) University, Armenia Aram V Papoyan , Institute for Physical Research of NAS, Armenia Hayk A Sarkisyan , Russian–Armenian (Slavonic) University, Armenia Participants of OPTICS-2011 in front of Yerevan State University Participants of OPTICS-2011 in Khor Virap The PDF also contains additional photographs from the Symposium.
The field of ultracold atomic physics has developed rapidly during the last two decades, and currently encompasses a broad range of topics in physics, with a variety of important applications in topics ranging from quantum computing and simulation to quantum metrology, and can be used to probe fundamental many-body effects such as superconductivity and superfluidity. Beginning with the underlying and including the most cutting-edge experimental developments, this textbook covers essential topics such as Bose-Einstein condensation of alkali atoms, studies of BEC-BCS crossover in degenerate Fermi gas, synthetic gauge fields and Hubbard models, and many-body localization and dynamical gauge fields. Key physical concepts, such as symmetry and universality highlight the connections between different systems, and theory is developed with plain derivations supported by experimental results. This self-contained and modern text will be invaluable for researchers, graduate students and advanced undergraduates studying cold atom physics, from both a theoretical and experimental perspective.
XII International Workshop on Quantum Optics (IWQO-2015) is a regular conference on relevant problems of quantum optics.It is held in Russia with the participation of representatives of foreign research groups.The first workshop was organized in October 1989 in Kazan by Prof. Vitaly Samartsev (Zavoisky Institute of Physics and Technology, Kazan, Russia).Currently the Workshops are held quadrennially in different places of Russia (2003 -St.Petersburg, 2007 -Samara, 2011 -Volgograd).IWQO-2015 was held in Moscow (south-west and Troitsk city districts) on the base of Moscow State Pedagogical University (www.mpgu.edu)and Institute for Spectroscopy of the Russian Academy of Sciences (www.isan.troitsk.ru).The Workshop was included into the list of events of the International Year of Light and Light-based technologies (IYL-2015).Chairmens of the Program Committee: Prof.
The XXVIth International Conference on Photonic, Electronic and Atomic Collisions was held on the campus of Western Michigan University (WMU) in Kalamazoo during 22–28 July 2009. Kalamazoo, the home of a major state university amid pleasant surroundings, was a delightful place for the conference. The 473 scientific participants, 111 of whom were students, had many fruitful discussions and exchanges that contributed to the success of the conference. Participants from 43 countries made the conference truly international in scope. The 590 abstracts that were presented on the first four days formed the heart of the conference and provided ample opportunity for discussion. This change, allowing the conference to end with invited talks, was a departure from the format used at previous ICPEAC gatherings in which the conferences ended with a poster session. The abstracts were split almost equally between the three main conference areas, i.e., photonic, electronic, and atomic collisions, and the posters were distributed across the days of the conference so that approximately equal numbers of abstracts in the different areas were scheduled for each day. Of the total number of presented abstracts, 517 of these are included in this proceedings volume, the first time that abstracts have been published by ICPEAC. There were 5 plenary lectures covering the different areas of the conference: Paul Corkum (University of Ottawa) talked on attosecond physics with atoms and molecules, Serge Haroche (Collège de France) on non-destructive photon counting, Toshiyuki Azuma (Tokyo Metropolitan University) on resonant coherent excitation of highly-charged ions in crystals, Eva Lindroth (Stockholm University) on atomic structure effects, and Alfred Müller (Justus Liebig University) on resonance phenomena in electron- and photon-ion collisions. Two speakers gave very illuminating public lectures that drew many people from the local area, as well as conference participants: Patricia Dehmer (US DOE) gave a talk on 'Facing Our Energy Challenges in a New Era of Science' and William Phillips (Nobel laureate, NIST) presented a talk on 'Time, Einstein, and the Coolest Stuff in the Universe'. These public talks, held on Thursday and Friday evenings, respectively, were very accessible to a general audience. In addition, there were 61 progress reports on ongoing current research, and 26 special reports selected from the submitted abstracts based on their relevance and importance. These talks covered the full range of the conference topics. Notably, this was the 50th anniversary of ICPEAC and a formal session was held the first day to honor the event as well as those who were instrumental in initiating the conference. Thirteen scientists, representing both those from the early days of ICPEAC as well as chairs of previous ICPEACs, were present and called to the stage, including Benjamin Bederson, Lewis Branscomb, Robert Crompton, Alexander Dalgarno, Gordon Dunn, Werner Eissner, Brian Gilbody, Edward Gerjuoy, Hartmut Hotop, Eugen Merzbacher, Eugene Rudd, Felix Smith, and Aaron Temkin. Steven Manson was the chair of the session and he introduced those present from the early days. Joachim Burgdörfer presented an overview of the history of ICPEAC. This session was followed by a special anniversary reception to honor all of the early 'ICPEACers'. Generous support for the conference was provided by IUPAP, the WMU President's office, and the National Science Foundation. The funds were sizeable, timely, and greatly appreciated, and permitted us to support a significant number of young scientists (postdocs and students) and persons from developing/disadvantaged countries. Nevertheless, the number of requests was far greater than the total support available (by about a factor of five!), and we had to turn down many financial requests. We encourage the organizers of the next ICPEAC to seek a higher level of funding for supporting young scientists and scientists from developing/disadvantaged countries. All in all, the XXVIth ICPEAC in Kalamazoo was very successful. The plenary lectures and the progress and special reports bridged the gap between the different fields of collision physics, making it possible for non-experts in a given area to gain insight into new areas. Also, included among the speakers were several young scientists, namely, postdocs and students, who brought new perspectives to their fields. The next ICPEAC will take place in Belfast in 2011, and the ones after that will be in Lanzhou in 2013 and Madrid in 2015. Given the rapidity with which science is advancing in all of the areas covered by ICPEAC, we expect that these future ICPEAC conferences will be as stimulating as this most recent one was, as indicated by the contributions presented in this proceedings volume. Ann Orel, University of California-Davis Anthony F Starace, University of Nebraska-Lincoln Dragan Nikolić, Western Michigan University Nora Berrah, Western Michigan University Thomas W Gorczyca, Western Michigan University Emanuel Y Kamber, Western Michigan University John A Tanis, Western Michigan University The PDF file contains details of the Sponsors and Exhibitors, Committees and Previous Proceedings.