Entanglement properties of atoms in the Kerr-nonlinear blackbody

Xu, Qinfeng; Hui, Xia; Jin-Jun, Chen,; Cheng, Ze

doi:10.1140/epjd/e2012-20636-1

Cited by 10 publications

(6 citation statements)

References 34 publications

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“…Nevertheless, here the quantum correlations have a minor weight when compared to the classical ones. On the other hand, in contrast to the Dicke model, the constrained dynamics is unable to create any entanglement when the initial condition is any of the pure separable states (24). In Fig.…”

Section: Evolution Of Entanglement and Quantum-classical Correlationsmentioning

confidence: 88%

“…( 28) remains valid after the replacement |Φ ± → |Ψ ± . Similarly, with these projectors the dynamics is unable to create any entanglement if the initial conditions are the separable pure states (24).…”

Section: Evolution Of Entanglement and Quantum-classical Correlationsmentioning

confidence: 99%

“…Even when the environment destroy the nonlocal properties of entanglement, it may also play a constructive role. The creation of entanglement by the action of a common bath was studied in many different physical situations [11][12][13][14][15][16][17][18][19][20][21][22][23][24][25] . Special interest have been paid to optical systems such as the Dicke model [21][22][23] where the dissipative decay dynamics is induced by interaction with the background electromagnetic field.…”

Section: Introductionmentioning

confidence: 99%

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Bipartite entanglement induced by classically-constrained quantum dissipative dynamics

Budini¹

2013

Physica A: Statistical Mechanics and its Applications

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The properties of some complex many body systems can be modeled by introducing in the dissipative dynamics of each single component a set of kinetic constraints that depend on the state of the neighbor systems. Here, we characterize this kind of dynamics for two quantum systems whose independent dissipative evolutions are defined by a Lindblad equation. The constraints are introduced through a set of projectors that restrict the action of each single dissipative Lindblad channel to the state of the other system. Conditions that guaranty a classical interpretation of the kinetic constraints are found. The generation and evolution of entanglement is studied for two optical qubits systems. Classically constrained dissipation leads to a stationary state whose degree of entanglement depends on the initial state. Nevertheless, independently of the initial conditions, a maximal entangled state is generated when both systems are subjected to the action of local Hamiltonian fields that do not commutate with the constraints. The underlying physical mechanism is analyzed in detail.

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Section: Evolution Of Entanglement and Quantum-classical Correlationsmentioning

confidence: 88%

Section: Evolution Of Entanglement and Quantum-classical Correlationsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Bipartite entanglement induced by classically-constrained quantum dissipative dynamics

Budini¹

2013

Physica A: Statistical Mechanics and its Applications

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“…Furthermore, a temperature induced switching process at a fixed input field is predicted near resonance conditions [20]. In the KNB, the resulting radiation is found to be a squeezed thermal state below a certain transition temperature [21]. The significant change occurring when a normal blackbody (thermal field) is replaced by a KNB, in matter-electromagnetic field interaction, is that the usual vacuum state of the electromagnetic field is replaced by the photon pair state and in turn the infinite energy of the field vacuum is replaced by the finite energy of the photon pairs [13,22].…”

Section: Introductionmentioning

confidence: 90%

Critical slowing down in an optical bistable model with Kerr-nonlinear blackbody reservoir

Sharaby

Hassan

Lynch

2016

Optik

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We investigate switching response for an Optical Bistable (OB) device consisting of homogeneously broadened two-level atoms in a ring cavity supported by a Kerr Nonlinear Blackbody (KNB) radiation reservoir in the high-Q cavity regime for both absorptive and dispersive cases. In the resonant case and below a transition temperature, faster switching processes for OB devices with KNB can be triggered by a small perturbation of the incident field in the vicinity of the critical transition point. The switching time increases with increasing atomic detuning parameter. A thermal switching process is obtained for a fixed incident field and is triggered by small perturbation in the relative reservoir temperature, b T say. The switching time is reduced considerably by slightly increasing the temperature b T . Comparison with other cases of radiation reservoir is made, namely, normal vacuum, thermal field and squeezed vacuum.

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“…A variety of cobalt complexes containing the dipicolinate ligand bound in a tridentate-N,O,O fashion are also known [10]. Similar dinuclear complexes of cobalt(II) and nickel(II) with N-(phosphonomethyl)iminodiacetate [11] (instead of dipicolinate) and bridging pyrazine exist, as well as of copper(II) with pyrazine and nitrilotriacetate [12] or iminodiacetate [13,14]. Only two cobalt(II) complexes containing 2-aminopyrazine are known [15,16], with 2-aminopyrazine bound as a terminal ligand in both cases.…”

Section: Introductionmentioning

confidence: 99%

A Rare Example of a Dinuclear Cobalt(II) Complex with Dipicolinate and Bridging 2-Aminopyrazine Ligands. Preparation, Structural, Spectroscopic and Thermal Characterization

Tabatabaee

Kukovec

Razavimahmoudabadi

2011

Zeitschrift Für Naturforschung B

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A dinuclear cobalt(II) complex, [Co 2 (H 2 O) 4 (dipic) 2 (µ-apyz)] (dipicH 2 = pyridine-2,6-dicarboxylic (dipicolinic) acid, apyz = 2-aminopyrazine) (1), has been hydrothermally synthesized and characterized by elemental analyses, spectroscopic methods (IR, UV/Vis), thermal analysis as well as by X-ray diffraction studies. The dinuclear complex is composed of two cobalt(II) ions bridged by a 2-aminopyrazine molecule. Each cobalt(II) ion is coordinated by one nitrogen and two oxygen atoms of the tridentate dipicolinate anion, one heterocyclic nitrogen atom of the 2-aminopyrazine and two oxygen atoms of coordinated water molecules. The resulting geometry for the CoN 2 O 4 coordination environment can be described as distorted octahedral. Various hydrogen bonds of the type O-H··· O and N-H··· O are also present in the crystal structure. This arrangement leads to the formation of a 3D structure.

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Entanglement properties of atoms in the Kerr-nonlinear blackbody

Cited by 10 publications

References 34 publications

Bipartite entanglement induced by classically-constrained quantum dissipative dynamics

Bipartite entanglement induced by classically-constrained quantum dissipative dynamics

Critical slowing down in an optical bistable model with Kerr-nonlinear blackbody reservoir

A Rare Example of a Dinuclear Cobalt(II) Complex with Dipicolinate and Bridging 2-Aminopyrazine Ligands. Preparation, Structural, Spectroscopic and Thermal Characterization

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