Excitation and depletion of entangled squeezed states: their properties and generation

Abstract

Recently, two-mode entangled squeezed states have been produced using even and odd squeezed states. Based on such entangled states, we introduce two new classes of quantum states, namely single-mode excited (depleted) entangled squeezed states which are obtained via the iterated action of the creation (annihilation) operator on the first mode of the two-mode entangled squeezed states. In continuation, we study the amount of entanglement of the introduced states by calculating the 'concurrence' and 'linear entropy'. In addition, we investigate several nonclassicality features such as the sub-Poissonian statistics, second-order correlation function between the two modes and quadrature squeezing. Finally, in order to establish the physical realization of the introduced states, a theoretical scheme for their generation based on the interaction of a two-level atom with a quantized cavity field is proposed.

Deformed photon-added entangled squeezed vacuum and one-photon states: Entanglement, polarization, and nonclassical properties

“…( 22)-( 24) one is led to the photon-added entangled squeezed states which recently have been introduced by us and their nonclassical properties have been studied. [41] Clearly, various classes of deformed photonadded entangled squeezed states can be achieved by choosing the well-known nonlinearity functions f (n) corresponding to different nonlinear quantum systems with various nonclassicality features and different physical properties.…”

“…[40] Keeping in mind the three steps in the latter-mentioned research procedure, and the fact that we have recently introduced and generated the photon-added entangled squeezed states and studied their properties in Ref. [41], in this paper we aim to introduce a new class of entangled quantum states, namely the deformed photon-added entangled squeezed states. It is worth mentioning that for the squeezed states we will consider the vacuum and the one-photon squeezed states (see Eqs.…”

The interaction between a Three-Level Atom and Four Systems of N-Two Level Atoms

“…Dibakar et al discussed many non-classical characteristics, like the sub-Poissonian statistics, correlation function among the two modes in Ref. [33]. Abdel-Wahab et al examined the non-classical characteristic of a two two-level atoms that interacts with a two-mode cavity field [34].…”

Teleportation of squeezed states in the absence and presence of dissipation

“…After preparation of proper quantum channel, quantum teleportation can be implemented. In this regard, generation of various classes of entangled states is of enough interest, moreover, the entangled coherent states (quasi-Bell state) [12][13][14] and special classes of entangled squeezed states [15,16] can be generated. The entangled squeezed states, will be used in this paper, have been generated via different schemes, i.e., in atomic Bose-Einstein condensates [17], with the help of QED method [16,18] and by utilizing the beam splitter [19].…”