Entanglement and quantum discord in the cavity QED models

Abstract

We investigate the quantum correlation between light and matter in bipartite quantum systems, drawing on the Jaynes-Cummings model and the Tavis-Cummings model, which are well-established in cavity quantum electrodynamics. Through the resolution of the quantum master equation, we can derive the dissipative dynamics in open systems. To assess the extent of quantum correlation, several measures are introduced: von Neumann entropy, concurrence and quantum discord. The effects of initial entanglement and dissipation intensity on quantum discord are carefully examined. Furthermore, we examined the dynamics of quantum discord within the ${\mathrm{OH}}^{+}$ model.

10 pages, 8 figures

References in corpus (28)

• Quantum entanglement
• Entanglement of Formation of an Arbitrary State of Two Qubits
• Introducing Quantum Discord
• Concentrating Partial Entanglement by Local Operations
• Entanglement of a Pair of Quantum Bits
• Classical, quantum and total correlations
• Necessary and sufficient condition for non-zero quantum discord
• Quantum Thermodynamics
• Quantum entanglement in condensed matter systems
• Photon blockade induced Mott transitions and XY spin models in coupled cavity arrays
• Quantum Discord and Maxwell's Demons
• Classical Correlations and Entanglement in Quantum Measurements
• Quantum entanglement and Bell inequalities in Heisenberg spin chains
• Variational Characterisations of Separability and Entanglement of Formation
• Classical correlation and quantum discord sharing of Dirac fields in noninertial frames
• Entanglement versus Quantum Discord in Two Coupled Double Quantum Dots
• A multipartite generalization of quantum discord
• Computing conditional entropies for quantum correlations
• Supersolid and pair correlations of the extended Jaynes-Cummings-Hubbard model on triangular lattices
• Exact $k$-body representation of the Jaynes-Cummings interaction in the dressed basis: Insight into many-body phenomena with light
• Effective Three-Body Interactions in Jaynes-Cummings-Hubbard Systems
• Hierarchy of Genuine Multipartite Quantum Correlations
• Worm quantum Monte-Carlo study of phase diagram of extended Jaynes-Cummings-Hubbard model
• Using a modified version of the Tavis-Cummings-Hubbard model to simulate the formation of neutral hydrogen molecule
• Comparing the effects of nuclear and electron spins on the formation of neutral hydrogen molecule
• Investigating entropic dynamics of multiqubit cavity QED system
• Distributed computing quantum unitary evolution
• Supercomputer model of finite-dimensional quantum electrodynamics applications

Cited by in corpus (4)

• Simulating and investigating various dynamic aspects of the ${\mathrm{H}}_2\mathrm{O}$-related hydrogen bond model
• Quantum electrodynamic description of ionization of the neutral hydrogen molecule
• Studying the effect of phonon coherence and inflow on hydrogen bond formation in the $[({\mathrm{H}}_2\mathrm{O}{)}_2{]}^m$ cluster
• Simulating and comparing the quantum and classical mechanical motion of two hydrogen atoms