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|Title:||Topological order following a quantum quench|
|Citation:||Tsomokos, D.I., Hamma, A., Zhang, W., Haas, S., Fazio, R. (2009-12-04). Topological order following a quantum quench. Physical Review A - Atomic, Molecular, and Optical Physics 80 (6) : -. ScholarBank@NUS Repository. https://doi.org/10.1103/PhysRevA.80.060302|
|Abstract:||We determine the conditions under which topological order survives a rapid quantum quench. Specifically, we consider the case where a quantum spin system is prepared in the ground state of the toric code model and, after the quench, it evolves with a Hamiltonian that does not support topological order. We provide analytical results supported by numerical evidence for a variety of quench Hamiltonians. The robustness of topological order under nonequilibrium situations is tested by studying the topological entropy and a dynamical measure, which makes use of the similarity between partial density matrices obtained from different topological sectors. © 2009 The American Physical Society.|
|Source Title:||Physical Review A - Atomic, Molecular, and Optical Physics|
|Appears in Collections:||Staff Publications|
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