Entanglement and quantum teleportation via dissipative cavities

Quantum Steering of Two Tavis-Cummings Atoms with Dipole-Dipole Interaction Under Intrinsic Decoherence

“…Furthermore, it reappears in the system at ζ = 0.17 when (η = 0.02) with a considerable amount. On the other hand, in figure 5(d), we note that ABF  exists for values of DDI (η > 1) with a remarkable amount close to the upper bound of inequality in equation (16). In this case we can say that the presence of intrinsic decoherence in the system in combination with a strong DDI leads to the stabilization of ABF  , regardless of the chosen initial state.…”

“…To ensure normalization of this quantity, we propose = 5 max  which is determined by the system's characteristics as well as its dynamics and is obtained by numerically maximizing the inequality in equation (16). Hence, when we consider the steering between subsystem A + B and field F, = 0 max  because the atoms A and B are initially non entangled with the cavity mode as shown in equation (4).…”

“…In contrast, entropic uncertainty inequalities [12] are mainly used to detect steering in a discrete variables context. Indeed, because of its asymmetric nature, steering has been used in quantum applications that depend on entanglement as a resource, such as quantum cryptography [13][14][15], teleportation [16][17][18][19], and more recently, quantum thermodynamics [20][21][22].…”

Teleportation of squeezed states in the absence and presence of dissipation

“…Teleportation of coherent state using the beam splitter has been studied in [27]. To access the reliable and realizable teleportation scheme, the effects of decoherence on this scheme have also been considered [27,40,41]. In present work, our protocol for teleportation, which is based on utilizing the beam splitter is introduced, by which we successfully teleport the unknown quantum state (which is a superposition of squeezed vacuum and one-photon squeezed state).…”