Entanglement on demand through time reordering
arXiv:0710.2308 · doi:10.1103/PhysRevLett.100.120501
Abstract
Entangled photons can be generated "on demand" in a novel scheme involving unitary time reordering of the photons emitted in a radiative decay cascade. The scheme yields polarization entangled photon pairs, even though prior to reordering the emitted photons carry significant "which path information" and their polarizations are unentangled. This shows that quantum chronology can be manipulated in a way that is lossless and deterministic (unitary). The theory can, in principle, be tested and applied to the biexciton cascade in semiconductor quantum dots.
4 pages, 4 figures
References in corpus (7)
- Experimental quantum teleportation
- Separability Criterion for Density Matrices
- A computable measure of entanglement
- Entangled Photon Pairs from Semiconductor Quantum Dots
- Improved fidelity of triggered entangled photons from single quantum dots
- Manipulating exciton fine-structure in quantum dots with a lateral electric field
- Distilling entanglement from cascades with partial "Which Path" ambiguity
Cited by in corpus (30)
- A photonic cluster state machine gun
- Quantum Communication Using Semiconductor Quantum Dots
- Semiconductor devices for entangled photon pair generation: a review
- Semiconductor quantum dots as an ideal source of polarization entangled photon pairs on-demand: a review
- Strain-tunable entangled-light-emitting diodes with high yield and fast operation speed
- Strain-Tuning of the Optical Properties of Semiconductor Nanomaterials by Integration onto Piezoelectric Actuators
- Distilling one, two and entangled pairs of photons from a quantum dot with cavity QED effects and spectral filtering
- Deterministically Fabricated Solid-State Quantum-Light Sources
- Theory of excitons in cubic III-V semiconductor GaAs, InAs and GaN quantum dots: fine structure and spin relaxation
- Path-controlled time reordering of paired photons in a dressed three-level cascade
- Generation of entangled photon-pairs from a single quantum dot embedded in a planar photonic-crystal cavity
- Radiative cascades in charged quantum dots
- Atomic Clouds as Spectrally-Selective and Tunable Delay Lines for Single Photons from Quantum Dots
- Entangled photon pairs from a quantum dot cascade decay: the effect of time-reordering
- Electrical control of the exciton-biexciton splitting in a single self-assembled InGaAs quantum dots
- Entangled Photon Pair Generation in Hybrid Superconductor-Semiconductor Quantum Dot Devices
- Probing exciton/exciton interactions with entangled photons: theory
- Entanglement swapping with energy-polarization entangled photons from quantum dot cascade decay
- Tuning exciton and biexciton transition energies and fine structure splitting through hydrostatic pressure in single InGaAs quantum dots
- Entangled photons on demand: Erasing which-path information with sidebands
- A heralded two-qutrit entangled state
- Semiconductor nanostructures engineering: Pyramidal quantum dots
- Entangled Photon Resonance Energy Transfer in Arbitrary Media
- Towards Tripartite Hybrid Entanglement in Quantum Dot Molecules
- Electric Control of the Exciton Fine Structure in Non-Parabolic Quantum Dots
- Entanglement transfer from electrons to photons in quantum dots: An open quantum system approach
- Correlations of cascaded photons: An analytical study in the two-photon Mollow regime
- Nonclassical Correlation of Polarization Entangled Photons in a Biexciton-Exciton Cascade
- Single and Few-Particle States in Core-Shell Nanowire Quantum Dots
- Fine structure of excitons in InAs quantum dots on GaAs(110) planar layers and nanowire facets