Ultrafast deterministic generation of entanglement in a time-dependent asymmetric two-qubit-cavity system
arXiv:quant-ph/0311111 · doi:10.1103/PhysRevA.70.020301
Abstract
We present an efficient scheme for the controlled generation of pure two-qubit states possessing {\em any} desired degree of entanglement and a {\em prescribed} symmetry in two cavity QED based systems, namely, cold trapped ions and flying atoms. This is achieved via on-resonance ion/atom-cavity couplings which are time-dependent and asymmetric, leading to a trapping vacuum state condition which does not arise for identical couplings. A duality in the role of the coupling ratio yields states with a given concurrence but opposing symmetries. The experimental feasibility of the proposed scheme is also discussed.
4 pages, 4 figures
References in corpus (6)
- Entanglement of Formation of an Arbitrary State of Two Qubits
- Coherent control of an atomic collision in a cavity
- Cavity Loss Induced Generation of Entangled Atoms
- Vacuum-Stimulated Raman Scattering based on Adiabatic Passage in a High-Finesse Optical Cavity
- Cavity QED and quantum information processing with "hot" trapped atoms
- Nonclassical effects in cold trapped ions inside a cavity
Cited by in corpus (10)
- Single-atom entropy squeezing for two two-level atoms interacting with a single-mode radiation field
- Entanglement between two atoms in a damping Jaynes-Cummings model
- A robust one-step catalytic machine for high fidelity anti-cloning and W-state generation in a multi-qubit system
- Controlling Statistical Properties of a Cooper Pair Box Interacting with a Nanomechanical Resonator
- Generation of maximally entangled mixed states of two atoms via on-resonance asymmetric atom-cavity couplings
- Fast quantum state transfer and entanglement for cavity-coupled many qubits via dark pathways
- Entanglement of topological phase factors
- On Multiparticle Entanglement via Resonant Interaction between Light and atomic Ensembles
- Controlling Excitations Inversion of a Cooper Pair Box Interacting with a Nanomechanical Resonator
- Maximally entangled mixed states of two atoms trapped inside an optical cavity