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Workshop on Complex Quantum Systems: Non-Ergodicity, Glassiness and Localization (smr2362)
Dates: |
27 - 31 August |
Organizers: |
C. Chamon (Boston), R. Moessner (MPI Dresden), M. Mueller (ICTP), A. Scardicchio (ICTP), F. Zamponi (ENS Paris) |
Secretary: |
N. Ivanissevich |
Deadline for requesting participation: |
Deadline expired |
Description: |
Attempts to understand interacting disordered quantum systems in terms of their excitations, energy and particle transport, relaxation dynamics and thermalization have attracted much attention recently. In quantum systems, strong disorder may lead to non-ergodicity and entail permanent out-of-equilibrium and glassy behavior for two rather different reasons: Localization in Hilbert space due to many-body versions of Anderson localization; or confinement in configuration space due to high barriers arising from frustration between competing interactions, such as in quantum spin glasses. A unified understanding of the underlying mechanisms and the phenomenology of the entailing quantum glassiness is not yet available, but is starting to emerge. This workshop aims at bringing together experts from the glass, localization and quantum complexity communities to foster mutual cross-fertilization and the generation of unifying concepts and ideas in this active field of research. A particularly interesting question concerns the problem of understanding how such non-ergodicity arises close to disorder-tuned quantum phase transitions between conducting and insulating phases. Recent results suggest a rich phenomenology of spatial and spectral properties of the relevant excitations and ground states. Disordered quantum systems are also interesting objects of study from the point of view of complexity and quantum information theory. Can classically hard problems be more easily solved by quantum annealing? Are many body wave functions of quantum non-ergodic systems less complex than those of ergodic systems? What can one infer about genuine quantum glassiness from mappings to classical dynamical systems? These and more related questions have received partial answers in the past, and will be explored further in the Workshop. TOPICS - Theoretical and experimental advances in glassy quantum systems: Bose glasses, disordered superconductors, cold atoms, spin and electron glasses - Localization and interactions in many particle systems: non-ergodicity in disordered quantum systems - Developments in quantum complexity theory, adiabatic algorithms, quantum cavity methods - Quantum glassiness and the glass transition SPEAKERS G. Aeppli (London) A. Amir (Harvard) D. Basko (Grenoble) F. Becca (SISSA) T. Bourdel (Palaiseau) C. Castelnovo (London) L. Cugliandolo (Paris) C. Dasgupta (Bangalore) M. Foster (Rutgers) I. Hen (UCSC) Y. Imry (Weizmann) L. Ioffe (Rutgers) J. Kurchan (Paris) C. Laumann (Harvard) P. Le Doussal (Paris) Z. Ovadyahu (Jerusalem) D. Popovic (Florida) L. Sanchez-Palencia (Paris) M. Schechter (Ben Gurion) B. Spivak (Seattle) A. Tsvelik (Brookhaven National Laboratory) PARTICIPATION Scientists from all countries that are members of the UN, UNESCO or IAEA can attend the Workshop. The Organizers will select participants upon evaluation of the application forms. The main purpose of the Centre is to help researchers from developing countries within the framework of international cooperation. However, scientists from developed countries are most welcome to attend. As the Workshop will be conducted in English, participants must have an adequate working knowledge of that language. As a rule, travel and subsistence expenses of the participants are borne by their home institutions. Limited funds are available for a limited number of applicants who are nationals of, and working in, developing countries. As scarcity of funds allows travel to be granted only in a few exceptional cases, every effort should be made by candidates to secure support for their fare from their home country. Such financial support is available only to those attending the entire Workshop. There is no registration fee to attend this activity. How to apply for participation: candidates can access the Online Application Form through the link below. Once in the website, comprehensive instructions will guide you step-by-step, on how to fill out and submit online the application. * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * |
