Entanglement-induced geometric phase of quantum states

Details Entanglement-induced geometric phase of quantum states Entanglement-induced geometric phase of quantum states

2008-03-18

arxiv.org/abs/0803.2609v3

Phys. Lett. A 374, 1431 (2010).

Physics

Quantum Physics

New title, major changes, journal reference added

Scientific paper

10.1016/j.physleta.2010.01.053

The concept of relative state is used to introduce geometric phases that originate from correlations in states of composite quantum systems. In particular, we identify an entanglement-induced geometric phase in terms of a weighted average of geometric phase factors associated with a decomposition that define the entanglement of formation. An explicit procedure to calculate the entanglement-induced geometric phase for qubit pairs is put forward. We illustrate it for maximally entangled mixed states (MEMS) of two qubits.

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