QUANTUM ENTANGLEMENT OF PHOTONS IN DOUBLED q-FOCK SPACE
He‐Shan Song, Dong Mi, Ling Zhou, Chong Li · Modern Physics Letters A · 2001
A doubled q-Fock space is constructed by introducing an idle mode system dual to the physical one under consideration. The quantum entanglements of photons in the squeezed states and thermal states based on the doubled q-Fock space are discussed.