Dynamics of quantum nonlocality for a hybrid entangled state in a thermal reservoir

Test of Bell-type theorems based on parity-coherent states of light fields

“…We first present the Bell-CHSH inequality based on parity-coherent states. For a singlemode light field, we introduce the pseudospin operator composed of parity-coherent states [26]: ŝ = (s x , s y , s z ), which are almost perfect analogies to the normal spin-1/2 systems,…”

Mesoscopic entangled coherent states implemented with a circuit quantum electrodynamics system

“…[1,2] Up to now, various theoretical and experimental schemes exploring the entanglement of coherent states have been extensively studied due to their important applications in different aspects, such as exploring some fundamental problems in quantum mechanics, [3] improving the weak-force detection, [4] and applications in quantum information processing. [5][6][7] Many of those schemes have been explored in various systems, [8,9] such as cavity quantum electrodynamics systems [10,11] and superconducting oscillators. [12,13] However, only a few schemes exploring entangled coherent states have been investigated in a circuit quantum electrodynamics (QED) system, [10,11] which has a great significance in experiments.…”

Dynamical nonlocality of the entangled coherent state in the phase damping model

“…In Ref. [16], we studied quantum nonlocality of a hybrid entangled state in the reservoir. Recently, it was shown that the periodical collapse and revival of the entanglement witness for 3-qubit cluster states in the common environment.…”

“…Where a(a ) and b(b ) are four unit vectors, e.g., a = (sin θ a , 0, cos θ a ), (16) which satisfy the relation (a • s) 2 = I, where I is the identity operator in the Hilbert space for the continuous-variable states. Using Eqs.…”