Strongly entangled light from planar microcavities
arXiv:1207.4899 · doi:10.1103/PhysRevA.86.052313
Abstract
The emission of entangled light from planar semiconductor microcavities is studied and the entanglement properties are analyzed and quantified. Phase-matching of the intra-cavity scattering dynamics for multiple pump beams or pulses, together with the coupling to external radiation, leads to the emission of a manifold of entangled photon pairs. A decomposition of the emitted photons into two parties leads to a strong entanglement of the resulting bipartite system. For the quantification of the entanglement, the Schmidt number of the system is determined by the construction of Schmidt number witnesses. It is analyzed to which extend the resources of the originally strongly entangled light field are diminished by dephasing in propagation channels.
9 pages, 5 figures, extended version
References in corpus (25)
- Quantum entanglement
- Separability of Mixed States: Necessary and Sufficient Conditions
- Quantifying Entanglement
- Quantum interface between light and atomic ensembles
- Quantum vacuum properties of the intersubband cavity polariton field
- Entanglement versus Correlations in Spin Systems
- A Schmidt number for density matrices
- Quantum tensor product structures are observable-induced
- A comparison of entanglement measures
- Schmidt number witnesses and bound entanglement
- Parametric Luminescence of Microcavity Polaritons
- Reflections upon separability and distillability
- Quantum complementarity of microcavity polaritons
- Branch-entangled polariton pairs in planar microcavities and photonic wires
- Entanglement and correlation in anisotropic quantum spin systems
- Necessary and sufficient conditions for bipartite entanglement
- A comparative study of relative entropy of entanglement, concurrence and negativity
- Determination of the Schmidt number
- Representation of entanglement by negative quasi-probabilities
- Entangled photons from the polariton vacuum in a switchable optical cavity
- Emergence of entanglement from a noisy environment: The case of polaritons
- Dynamics-Controlled Truncation Scheme for Nonlinear Dynamics in Semiconductor Microcavities
- Entanglement quasiprobabilities of squeezed light
- Iterative Entanglement Distillation: Approaching full Elimination of Decoherence
- Single scatterings in single artificial atoms: Quantum coherence and entanglement
Cited by in corpus (14)
- Multipartite Entanglement Witnesses
- Qubits based on Polariton Rabi Oscillators
- Permanent Rabi oscillations in coupled exciton-photon systems with PT-symmetry
- Witnessing the degree of nonclassicality of light
- Entanglement in macroscopic systems
- Multipartite entangled light from driven microcavities
- Quantum correlations in composite systems
- Witnessing random unitary and projective quantum channels: Complementarity between separable and maximally entangled states
- Entanglement generation in microcavity polariton devices
- Enhanced squeezing by absorption
- Entangled light from driven dissipative microcavities
- Superfluorescence spectra of excitons in quantum wells
- Generation, dynamical buildup and detection of bi- and mulipartite entangled states in cavity systems
- Cavity-QED of a leaky planar resonator coupled to an atom and an input single-photon pulse