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quant-ph2016★ 34 cited
Topological order of mixed states in quantum many-body systems
Fabian Grusdt
Topological order has become a new paradigm to distinguish ground states of interacting many-body systems without conventional long-range order. Here we discuss possible extensions…
quant-ph2016★ 39 cited
Interferometric Approach to Probing Fast Scrambling
Norman Y. Yao, Fabian Grusdt, Brian Swingle +4
Out-of-time-order correlation functions provide a proxy for diagnosing chaos in quantum systems. We propose and analyze an interferometric scheme for their measurement, using only…