Quantum spins as quantum simulators
Event details
| Date | 13.03.2015 |
| Hour | 14:15 |
| Speaker | Prof. Thierry Giamarchi, Department of Quantum Matter Physics, University of Geneva |
| Location | |
| Category | Conferences - Seminars |
Quantum magnets in insulating structures have proven to be remarkable systems when subjected to a strong magnetic field.
In addition to their own intrinsic interest they can be mapped on model systems of itinerant quantum particles. This has allowed to use them as quantum simulators for studying the properties of interacting hard core bosons. In particular I will focus on two recent ladder compounds for which a combination of numerical studies and analytical ones has allowed to obtain fully the dynamical correlation functions.
I will review the recent results in that respect, in particular some of the experiments and the corresponding theories for phenomena such as Bose-Einstein condensation and Tomonaga-Luttinger liquids.
I will discuss the recent successes in this domain as well as several of the open problems and perspectives offered by such compounds such as the possibility to study dimensional crossover, disorder effects etc.
Keywords: quantum magnets, itinerant quantum particles, quantum simulators, Bose-Einstein condensation, Tomonaga-Luttinger liquids
Bio: Thierry Giamarchi graduated from Ecole Normale Superieure in Paris and received his PhD from Paris XI University in 1987. He has been a permanent member of the french CNRS since 1986, and between 1990-1992 was a postdoc/visitor at Bell Laboratories. In 2002 he moved as a full professor to the Condensed Matter Department at the University of Geneva. Since 2013 he is a member of the French Academy of Sciences, and a fellow of the American Physical Society. His research work deals with the effects of interactions in low dimensional quantum systems, such as Luttinger liquids, and on the effects of disorder in classical and quantum systems with works showing the existence of novel disordered phases such as the Bose glass and the Bragg glass. He received in 2000 the Abragam prize from the french Academy of Sciences. He is the author of about 220 publications, 10 chapters of books, and one monograph ``Quantum physics in one dimension'' with Oxford. He is a referee for many journals and funding organizations, has been an editor and a "Distinguished Referee" of Europhysics letters and has been recognized as an ``Outstanding Referee'' by the APS. He has also served on the board of several scientific institutions such as the CNRS theory comity and the ``Les Houches school'' administrative board.
In addition to their own intrinsic interest they can be mapped on model systems of itinerant quantum particles. This has allowed to use them as quantum simulators for studying the properties of interacting hard core bosons. In particular I will focus on two recent ladder compounds for which a combination of numerical studies and analytical ones has allowed to obtain fully the dynamical correlation functions.
I will review the recent results in that respect, in particular some of the experiments and the corresponding theories for phenomena such as Bose-Einstein condensation and Tomonaga-Luttinger liquids.
I will discuss the recent successes in this domain as well as several of the open problems and perspectives offered by such compounds such as the possibility to study dimensional crossover, disorder effects etc.
Keywords: quantum magnets, itinerant quantum particles, quantum simulators, Bose-Einstein condensation, Tomonaga-Luttinger liquids
Bio: Thierry Giamarchi graduated from Ecole Normale Superieure in Paris and received his PhD from Paris XI University in 1987. He has been a permanent member of the french CNRS since 1986, and between 1990-1992 was a postdoc/visitor at Bell Laboratories. In 2002 he moved as a full professor to the Condensed Matter Department at the University of Geneva. Since 2013 he is a member of the French Academy of Sciences, and a fellow of the American Physical Society. His research work deals with the effects of interactions in low dimensional quantum systems, such as Luttinger liquids, and on the effects of disorder in classical and quantum systems with works showing the existence of novel disordered phases such as the Bose glass and the Bragg glass. He received in 2000 the Abragam prize from the french Academy of Sciences. He is the author of about 220 publications, 10 chapters of books, and one monograph ``Quantum physics in one dimension'' with Oxford. He is a referee for many journals and funding organizations, has been an editor and a "Distinguished Referee" of Europhysics letters and has been recognized as an ``Outstanding Referee'' by the APS. He has also served on the board of several scientific institutions such as the CNRS theory comity and the ``Les Houches school'' administrative board.
Practical information
- Informed public
- Free
Organizer
- ICMP (Arnaud Magrez and Raphaël Butté)
Contact
- Arnaud Magrez ([email protected])