Structure of passive states and its implication in charging quantum batteries

18 Aug 2020 Alimuddin Mir Guha Tamal Parashar Preeti

In this article, in addition to the characterization of geometrical state spaces for the passive states, an operational approach has been introduced to distinguish them on their charging capabilities of a quantum battery. Unlike the thermal states, the structural instability of passive states assures the existence of a natural number $n$, for which $n+1$-copies of the state can charge a quantum battery while $n$-copies cannot... (read more)

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