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TT: Fachverband Tiefe Temperaturen

TT 39: Transport: Quantum Coherence and Quantum Information Systems - Theory II

TT 39.1: Vortrag

Dienstag, 1. April 2014, 10:45–11:00, BEY 81

Self-trapping of photons in circuit QED — •Sebastian Schmidt¹, James Raftery², Darius Sadri², Hakan Tureci², and Andrew Houck² — ¹Institute of Theoretical Physics, ETH Zurich, Switzerland — ²Department of Electrical Engineering, Princeton University, USA

We discuss the theoretical proposal and recent experimental observation of a novel dissipation driven dynamical localization transition of strongly correlated photons in an extended superconducting circuit consisting of two coupled resonators, each containing a superconducting qubit. Interaction with an environment has been argued to provide a mechanism for the emergence of classical behavior from a quantum system. Surprisingly, homodyne measurements reveal the observed localization transition to be from a regime of classical oscillations into a macroscopically self-trapped state manifesting revivals, a fundamentally quantum phenomenon. This experiment also demonstrates a new class of scalable quantum simulators with well controlled coherent and dissipative dynamics suited to the study of quantum many-body phenomena out of equilibrium.