Quantum dynamics of spatial decoherence of two atoms in a ring cavity
arXiv:1101.0032 · doi:10.1103/PhysRevA.82.062106
Abstract
We study the spatial decoherence dynamics for the relative position of two atoms in a singlemode ring cavity. We find that the spatial decoherence of the two atoms depends strongly on their relative position. Taking into account the spatial degrees of freedom, we investigate the entanglement dynamics of the internal states of the two atoms. It is shown that the entanglement decays to almost zero in a finite time, and the disentanglement time depends on the width of the wave packets describing the atomic spatial distribution.
11 pages, 7 figures
References in corpus (9)
- Quantum Computing
- Sudden Death of Entanglement
- Superconducting Circuits and Quantum Information
- Deterministic generation of large cluster states using non-deterministic collective measurements based on quantum Zeno effect
- Sudden vanishing of spin squeezing under decoherence
- Protecting entanglement in superconducting qubits
- Distinguishing quantum from classical oscillations in a driven phase qubit
- Pseudo-Rabi oscillations in superconducting flux qubits in the classical regime
- Quantum recoil effects in finite-time disentanglement of two distinguishable atoms