Controlling the quantum state of a single photon emitted from a single polariton
arXiv:1202.6195 · doi:10.1103/PhysRevA.84.053830
Abstract
We investigate in detail the optimal conditions for a high fidelity transfer from a single-polariton state to a single-photon state and subsequent homodyne detection of the single photon. We assume that, using various possible techniques, the single polariton has initially been stored as a spin-wave grating in a cloud of cold atoms inside a low-finesse cavity. This state is then transferred to a single-photon optical pulse using an auxiliary beam. We optimize the retrieval efficiency and determine the mode of the local oscillator that maximizes the homodyne efficiency of such a photon. We find that both efficiencies can have values close to one in a large region of experimental parameters.
10 pages, 8 figures
References in corpus (8)
- Generation of a superposition of odd photon number states for quantum information networks
- Generation of large-amplitude coherent-state superposition via ancilla-assisted photon-subtraction
- Photon storage in Lambda-type optically dense atomic media. I. Cavity model
- Quantum homodyne tomography of a two-photon Fock state
- Interfacing Collective Atomic Excitations and Single Photons
- Optimal light storage with full pulse shape control
- Towards quantum frequency combs: boosting the generation of highly nonclassical light states by cavity-enhanced parametric down-conversion at high repetition rates
- Quantum memory for light using extended atomic ensembles in a tunable cavity