Entanglement dynamics of qubits in a common environment
arXiv:quant-ph/0604020 · doi:10.1016/j.physa.2007.04.008
Abstract
We use the quantum jump approach to study the entanglement dynamics of a quantum register, which is composed of two or three dipole-dipole coupled two-level atoms, interacting with a common environment. Our investigation of entanglement dynamics reflects that the environment has dual actions on the entanglement of the qubits in the model. While the environment destroys the entanglement induced by the coherent dipole-dipole interactions, it can produce stable entanglement between the qubits prepared initially in a separable state. The analysis shows that it is the entangled decoherence-free states contained as components in the initial state that contribute to the stable entanglement. Our study indicates how the environmental noise produces the entanglement and exposes the interplay of environmental noise and coherent interactions of qubits on the entanglement.
The final version
References in corpus (19)
- Entanglement of Formation of an Arbitrary State of Two Qubits
- Mixed State Entanglement and Quantum Error Correction
- Separability Criterion for Density Matrices
- A computable measure of entanglement
- Finite-Time Disentanglement via Spontaneous Emission
- The Quantum Jump Approach to Dissipative Dynamics in Quantum Optics
- Cavity Loss Induced Generation of Entangled Atoms
- Creation of Entanglement by Interaction with a Common Heat Bath
- Entangled states and collective nonclassical effects in two-atom systems
- Environment Induced Entanglement in Markovian Dissipative Dynamics
- Entanglement induced by a single-mode heat environment
- Disentanglement and Decoherence by Open System Dynamics
- Qubit Disentanglement and Decoherence via Dephasing
- Phonon decoherence of quantum entanglement: Robust and fragile states
- Open Quantum Dynamics: Complete Positivity and Entanglement
- Ordering two-qubit states with concurrence and negativity
- Noise-assisted preparation of entangled atoms
- Optimal quantum codes for preventing collective amplitude damping
- Entanglement production and decoherence-free subspace of two single-mode cavities embedded in a common environment
Cited by in corpus (15)
- System-reservoir dynamics of quantum and classical correlations
- Non-Markovian entanglement dynamics of noisy continuous variable quantum channels
- Multiqubit Spectroscopy of Gaussian Quantum Noise
- Off-resonant entanglement generation in a lossy cavity
- Generation and propagation of entanglement in driven coupled-qubit systems
- Long-lived spin entanglement induced by a spatially correlated thermal bath
- Environment-induced entanglement with a single photon
- Steady state entanglement of two coupled qubits
- Dynamics of Entanglement and Bell-nonlocality for Two Stochastic Qubits with Dipole-Dipole Interaction
- Dynamical pairwise entanglement and two-point correlations in the three-ligand spin-star structure
- Modelling of quantum information processing with Ehrenfest guided tra jectories: a case study
- Effects of dipolar coupling on an entanglement storage device
- A heat bath can generate all classes of three-qubit entanglement
- Thermal entanglement of superconducting qubits for arbitrary interaction strength
- Complete complementarity relations in system-environment decoherent dynamics