Entanglement battery powers quantum reversibility

https://www.eurekalert.org/news-releases/1089919

"like ordinary battery storing energy in thermodynamics, entanglement battery injects/ stores entanglement, but level of entanglement within battery can not decrease... any mixed-state entanglement transformation can be made reversible... also applies to systems involving >2 entangled particles, paving way for complex quantum networks, highly efficient quantum technologies... also: battery that is supposed to preserve coherence/ free energy but that can have that particular resource of the system reversibly manipulated”

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