Open quantum systems with local and collective incoherent processes: Efficient numerical simulation using permutational invariance

14 May 2018 Nathan Shammah Shahnawaz Ahmed Neill Lambert Simone De Liberato Franco Nori

The permutational invariance of identical two-level systems allows for an exponential reduction in the computational resources required to study the Lindblad dynamics of coupled spin-boson ensembles evolving under the effect of both local and collective noise. Here we take advantage of this speedup to study several important physical phenomena in the presence of local incoherent processes, in which each degree of freedom couples to its own reservoir... (read more)

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