Mukund Vengalattore, LASSP, Cornell University, will present seminar. Carl Franck, host.
Seminar Title: Universal critical behavior of open quantum systems
Abstract: Due to the interplay between quantum coherence and dissipation, the behavior of open quantum systems conforms neither to unitary quantum dynamics nor to classical thermodynamic descriptions. Despite the prevalence of such open systems in platforms including ultracold atomic gases, circuit-QED systems, solid state defect centers and even biological entities, a universal description of open quantum behavior is lacking. I will describe our experimental realization of such open quantum systems in ultracold atomic gases and cavity optomechanical systems. I will elaborate on new forms of critical behavior and emergent phases in these systems that lie beyond the paradigms of Landau-Ginzburg phenomenology. These studies can shed light on universal aspects of dynamical transitions in a wide range of non-equilibrium quantum systems and also aid in the application of these systems to various aspects of quantum information science.
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