Charge pairing by quantum entanglement in strongly correlated electron systems
Abstract
Various charge pairings in strongly correlated electron systems are interpreted as quantum entanglement of a composite system. Particles in the intermediate phase have a tendency to form the coherent superposition state of the localized state and the itinerant state, which induces the entanglement of both particles in the bipartite subsystems for increasing the entropy of the system. The correction to the entropic Coulomb force becomes an immediate cause of charge pairing.
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