Robust construction of entangled coherent GHZ and W states in a cavity QED system
arXiv:1401.7919 · doi:10.1007/s10773-015-2796-7
Abstract
By exploiting a system of three distant cavities, we propose a scheme for constructing tripartite entangled coherent GHZ and W states which are robust due to the photon losses in the cavities. Each of cavities is doped with a semiconductor quantum dot. By the dynamics, the excitonic modes of quantum dots are enabled to exhibit entan-gled coherent GHZ and W states. Apart from the exciton losses, the master equation approach shows that when the populations of the field modes in the cavities are negli-gible the destruction of entanglement due to decoherence arises from photon losses, is effectively suppressed.
24 pages, 13 figures
References in corpus (13)
- Quantum nature of a strongly-coupled single quantum dot-cavity system
- Coupling Superconducting Qubits via a Cavity Bus
- Strongly Interacting Polaritons in Coupled Arrays of Cavities
- Photon blockade induced Mott transitions and XY spin models in coupled cavity arrays
- Distributed quantum computation via optical fibres
- Fault-tolerant linear optical quantum computing with small-amplitude coherent states
- Dynamics in a coupled-cavity array
- GHZ-type and W-type entangled coherent states: generation and Bell-type inequality tests without photon counting
- Density Matrix Renormalization Group in the Heisenberg Picture
- Quantum-information transfer in a coupled resonator waveguide
- Ion crystal transducer for strong coupling between single ions and single photons
- Entanglement Dynamics of Two Independent Cavity-Embedded Quantum Dots
- Controllable entanglement preparations between atoms in spatially-separated cavities via quantum Zeno dynamics