Can orthogonalization enhance the EPR correlation and the teleportation fidelity of a two-mode squeezed vacuum?

摘要

For the first time, to the best of our knowledge, based on a two-mode squeezed vacuum (TMSV), we introduce photon-added orthogonal TMSVs and photon-subtracted orthogonal TMSVs via multiphoton addition a(dagger k)b(dagger l) and multiphoton subtraction a(k)b(l) (k, l are arbitrary integers). As a comparison, we also consider photon-added TMSVs and photon-subtracted TMSVs. We theoretically analyze Einstein-Podolsky-Rosen (EPR) correlation and teleportation fidelity for all these two-mode states. Our results indicate that orthogonalization cannot enhance EPR correlation and teleportation fidelity, at least so far. (C) 2021 Optical Society of America