Lecturer: Dr. Moshe Goldstein
Affiliation:
Raymond and Beverly Sackler School
of Physics & Astronomy, Tel-Aviv University
Abstract:
It has recently been realized that driven-
dissipative dynamics, which usually tends to
destroy subtle quantum interference and
correlation effects, could actually be used as a
resource. By proper engineering of the
reservoirs and their couplings, one may drive a
system towards a desired quantum-correlated
steady state, even in the absence of internal
Hamiltonian dynamics.
An intriguing class of quantum phases is
characterized by topology, including the
quantum Hall effect and topological insulators
and superconductors. Which of these
noninteracting topological states can be
achieved as the result of purely dissipative
Lindblad-type dynamics? Recent studies have
only provided partial answers to this question.
In this talk I will present a general recipe for the
creation, classification, and detection of states
of the integer quantum Hall and 2D topological
insulator type as the outcomes of coupling a
system to reservoirs, and show how the recipe
can be realized with ultracold atoms and other
quantum simulators. The mixed states so
created can be made arbitrarily close to pure
states, and the construction may be generalized
to other topological phases.