Hi quantum people,
While we don't have a usual meeting this week, Andrew Daley from the
University of Innsbruck is visiting, and giving a talk you may or may
not find interesting. He's also available to discuss, if you're
interested in simulating 1d quantum systems.
Regards,
Jake
Title:
Exploring coherent many-body dynamics with cold atoms in optical
lattices
Andrew Daley (Innsbruck)
Abstract:
Cold atoms in optical lattices offer new system in which quantum many-
body phenomena that are difficult to observe in solid state
systems can be probed in experiments. These systems offer clean
realisations of many microscopic lattice models, with excellent
control over the system parameters and many possibilities to measure
the properties of the system. In addition, they exhibit only weak
dissipative processes, resulting in long coherence times.
This allows new aspects of coherent many-body physics to be probed in
an experiment, such as the formation of long lived metastable states
or the study of time-dependent many-body dynamics. I will illustrate
the different possibilities by discussing our recent work in this
direction. In particular, I will address (1) systems of Atomic Lattice
Excitons, bound metastable particle-hole pairs that are analogues of
excitons in semiconductor systems, but which also exhibit novel
properties including a crystalline phase, and (2) possible analogies
to mesoscopic transport systems, in particular observing the the
propagation of density excitations through the system in order to
probe Andreev-like reflections at an interaction boundary. I will also
discuss briefly recent calculations of superfluid currents of bosons
in an optical lattice confined to move along one dimension.
On Jun 9, 2008, at 9:13 AM, Edward Farhi wrote:
Dear All
We will have a talk by Peter Young at 3:00 in the fourth floor
seminar room of building 6c. This is about his numerical studies of
the performance of the adiabatic algorithm. See you there.
Best,
Eddie
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Edward Farhi
Professor of Physics
Director
Center for Theoretical Physics
Massachusetts Institute of Technology
Building 6 Room 300
Cambridge MA 02139
617 253 4871
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