Efficiency of feedback process in cavity quantum electrodynamics
arXiv:0708.0274 · doi:10.1088/0953-4075/40/17/002
Abstract
Utilizing the continuous frequency mode quantization scheme, we study from first principle the efficiency of a feedback scheme that can generate maximally entangled states of two atoms in an optical cavity through their interactions with a single input photon. The spectral function of the photon emitted from the cavity, which will be used as the input of the next round in the feedback process, is obtained analytically. We find that the spectral function of the photon is modified in each round and deviates from the original one. The efficiency of the feedback scheme consequently deteriorates gradually after several rounds of operation.
arXiv comment11 pages, 5 figures, accepted for publication in Journal of Physics B
References in corpus (12)
- Scalable photonic quantum computation through cavity-assisted interaction
- Deterministic entanglement of two trapped ions
- Implementation of a Quantum Search Algorithm on a Nuclear Magnetic Resonance Quantum Computer
- Cavity Loss Induced Generation of Entangled Atoms
- Creation of Entanglement by Interaction with a Common Heat Bath
- Efficient engineering of multi-atom entanglement through single-photon detections
- Role of entanglement in two-photon imaging
- Dynamic generation of maximally entangled photon multiplets by adiabatic passage
- Quasi-deterministic generation of entangled atoms in a cavity
- Noise-assisted preparation of entangled atoms
- Robust Entanglement in Atomic Systems via Lambda-Type Processes
- Generation of entangled states of two atoms inside a leaky cavity