Quantum Properties of the State via Operation of Superposition of Photon Subtraction Two Times and Photon Addition Two Times on Two Modes Squeezing Vacuum State

Detecting nonclassicality and non-Gaussianity by the Wigner function and quantum teleportation in photon-added-and-subtracted two modes pair coherent state

“…For example, the Gaussian state that is most interested in is the two-mode squeezing state [8]. The photons added and subtracted to a two-mode squeezing state have introduced many non-Gaussian states [30][31][32][33], in which the nonclassical and the entanglement properties have been investigated. These non-Gaussian states can be considered to perform many quantum tasks such as improvement of the quantum optical interferometry via the photon-added two-mode squeezed vacuum states [31], enhancement of the quantum entanglement and quantum teleportation by the multiple-photon subtraction and addition to a two-mode squeezing state [26,32].…”

Enhancement of dynamical entanglement in a dispersive two-mode Jaynes–Cummings model via superposition of photon-added pair coherent state

“…The non-Gaussian states contribute to enhance entanglement between the partite of the system and increase the degree of average fidelity in the quantum teleportation process [34][35][36][37][38][39][40][41]. Among these, the proposed states by adding photons to both modes of two-mode squeezed state [42] or pair coherent state (PCS) [43,44] have generated many non-Gaussian states with high non-classical properties as well as high degree of entanglement [45][46][47][48][49][50][51][52][53][54]. Interestingly, the PCS is a non-Gaussian state, and the proposed states by adding photons to the PCS are still non-Gaussian and their properties can be observed more clearly than in the original state [53][54][55][56].…”