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# Thermal quantum correlations in two gravitational cat states

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### Abstract

We consider the effect of a thermal bath on quantum correlations induced by the gravitational interaction between two massive cat states. Entanglement (measured by the concurrence) and quantum coherence (measured by the $$l_1$$-norm) are analyzed from the thermal quantum density operator. We investigate and discuss the behavior of these quantities under temperature variations in different regimes, including some that are expected to be experimentally feasible in the future.

### Author and article information

###### Journal
10 June 2021
###### Article
2106.05696