47th Regular DAMOP Meeting
May 23-27, 2016 • Providence, Rhode Island
Graduate Student Symposium on Ultra-Cold Gases
Monday, May 23
DAMOP offers a graduate student symposium in conjunction with the DAMOP Meeting. While aimed primarily at graduate students, the symposium is open to all students and post-docs.
Includes presentations, lunch, and refreshments.
Deadline: Friday, May 13
Pre-registration for the Graduate Student Symposium is strongly encouraged. Space is limited. You must register for the symposium online when you register for the DAMOP Meeting.
Schedule for Graduate Symposium on Ultra-Cold Gases
|8:45 a.m.||Welcome and Introductions|
|9:00 a.m.||Superfluidity in ultracold gases
Gretchen Campbell, JQI/University of Maryland
The study of superfluidity has a long and rich history. In Bose-Einstein condensate, superfluidity gives rise to a number of interesting effects, including quantized vortices and persistent currents. In this seminar I will give an introduction to superfluidity in ultracold atoms, including a discussion of the critical velocity and the spectrum of elementary excitations in superfluid systems.
|10:15 a.m.||Coffee break|
Non-equilibrium dynamics in AMO quantum simulators
Andrew Daley, University of Strathclyde
Recently, the possibility to control and measure AMO systems time-dependently has generated a lot of progress in exploring out-of-equilibrium dynamics for strongly interacting many-particle systems. This connects directly to fundamental questions relating to the relaxation of such systems to equilibrium, as well as the spreading of correlations and build-up of entanglement. While ultracold atoms allow for exceptional microscopic control over quantum gases with short-range interactions, experiments with polar molecules and chains of trapped ions now also offer the possibility to investigate spin models with long-range interactions. I will give an introduction to the recent developments in this area, illustrated with two examples: (i) the possibility to measurement entanglement for many itinerant particles with ultracold atoms in optical lattices, and (ii) new opportunities to compare dynamics with short and long-range interactions, especially using systems of trapped ions, where it is possible to control the effective range of interactions.
|1:15 p.m.||Fun with ultracold few-body systems
Doerte Blume, Washington State University
Few-body physics has played a pivotal role in quantum mechanics from the very beginning. Prime examples include the helium atom and molecular hydrogen. The realization of ultracold atoms has opened up new avenues for exploring few-body quantum mechanics. Three-body processes, for example, are instrumental in understanding the stability of large ultracold atomic samples. This talk will summarize recent theoretical and experimental ultracold few-body studies. The talk will conclude with a list of open questions.
|2:30 p.m.||Coffee Break
Large spin magnetism with cold atoms
Bruno Laburthe-Tolra, Université Paris 13 & CNRS
The properties of quantum gases made of ultra-cold atoms strongly depend on the interactions between atoms. These interactions lead to condensed-matter-like collective behavior, so that quantum gases appear to be a new platform to study quantum many-body physics. In this seminar, I will focus on the case where the atoms possess an internal (spin) degrees of freedom. The spin of atoms is naturally larger than that of electrons. Therefore, the study of the magnetic properties of ultra-cold gases allows for an exploration of magnetism beyond the typical situation in solid-state physics where magnetism is associated to the s=1/2 spin of the electron. I will describe three specific cases: spinor Bose-Einstein condensates, where spin-dependent contact interactions introduce new quantum phases and spin dynamics; large spin magnetic atoms where strong dipole-dipole interactions lead to exotic quantum magnetism; large spin Fermi gases.
Nathan Lundblad, Bates College
Ana Maria Rey, University of Colorado, Boulder
Marianna Safranova, University of Delaware