An entangled quantum state is considered by applying a local photon excitation to each mode of an entangled coherent state. The entanglement property is investigated in terms of the entropy of entanglement. It is shown that applying a photon addition can improve the amount of entanglement. It is also examined that in a specific region of parameters, the state ∣ψ1−(α,m,n)⟩ is least entangled when photon excitation is minimum. We study the statistical properties of such states by employing the quasi-probability functions.
@article{arxiv.2304.05400,
title = {Two-mode photon-added entangled coherent states and their entanglement properties},
author = {Arpita Chatterjee},
journal= {arXiv preprint arXiv:2304.05400},
year = {2023}
}