Bell-inequality violation with a triggered photon-pair source
arXiv:0804.0716 · doi:10.1103/PhysRevLett.102.030406
Abstract
Here we demonstrate, for the first time, violation of Bell's inequality using a triggered quantum dot photon-pair source without post-selection. Furthermore, the fidelity to the expected Bell state can be increased above 90% using temporal gating to reject photons emitted at times when collection of uncorrelated light is more probable. A direct measurement of a CHSH Bell inequality is made showing a clear violation, highlighting that a quantum dot entangled photon source is suitable for communication exploiting non-local quantum correlations.
14 pages, 4 figures
References in corpus (10)
- Quantum Communication
- Entangled Photon Pairs from Semiconductor Quantum Dots
- Size-dependent fine-structure splitting in self-organized InAs/GaAs quantum dots
- Manipulating exciton fine-structure in quantum dots with a lateral electric field
- Magnetic-field-induced reduction of the exciton polarization splitting in InAs quantum dots
- Inversion of exciton level splitting in quantum dots
- Coherence of an Entangled Exciton-Photon State
- Evolution of entanglement within classical light states
- Control of fine-structure splitting and excitonic binding energies in selected individual InAs/GaAs quantum dots
- Manipulating the exciton fine structure of single CdTe/ZnTe quantum dots by an in-plane magnetic field
Cited by in corpus (32)
- Observation of strongly entangled photon pairs from a nanowire quantum dot
- Strain-Tunable GaAs Quantum dot: A Nearly Dephasing-Free Source of Entangled Photon Pairs on Demand
- Direct generation of three-photon polarization entanglement
- Entanglement swapping with photons generated on-demand by a quantum dot
- Symmetric quantum dots as efficient sources of highly entangled photons
- Strain-tunable entangled-light-emitting diodes with high yield and fast operation speed
- Nanomaterials for Quantum Information Science and Engineering
- Highly entangled photons from hybrid piezoelectric-semiconductor quantum dot devices
- Bright nanoscale source of deterministic entangled photon pairs violating Bell's inequality
- Two-Photon Rabi Splitting in a Coupled System of a Nanocavity and Exciton Complexes
- Metal-coated nano-cylinder cavity for broadband nonclassical light emission
- Engineering of selective carrier injection in patterned arrays of single-quantum-dot entangled photon light-emitting diodes
- Improving the performance of bright quantum dot single photon sources using amplitude modulation
- A source of entangled photons based on a cavity-enhanced and strain-tuned GaAs quantum dot
- An entangled-LED driven quantum relay over 1 km
- Single pairs of time-bin entangled photons
- Generation of entangled photon-pairs from a single quantum dot embedded in a planar photonic-crystal cavity
- Electric-field-induced energy tuning of on-demand entangled-photon emission from self-assembled quantum dots
- Tunneling Effects on Fine-Structure Splitting in Quantum Dot Molecules
- Statistical Properties of Exciton Fine Structure Splittings and Polarization Angles in Quantum Dot Ensembles
- Linear optical quantum computation with imperfect entangled photon-pair sources and inefficient non-photon-number-resolving detectors
- Quantum-correlated two-photon transitions to excitons in semiconductor quantum wells
- Entangled photons on demand: Erasing which-path information with sidebands
- Phase Compensation Enhancement of Photon Pair Entanglement Generated from Biexciton Decays in Quantum Dots
- Signatures of the Optical Stark Effect on Entangled Photon Pairs from Resonantly-Pumped Quantum Dots
- Entanglement transfer from electrons to photons in quantum dots: An open quantum system approach
- Relevance of the purity level in a MetalOrganic Vapour Phase Epitaxy reactor environment for the growth of high quality pyramidal sitecontrolled Quantum Dots
- Maximal symetrization and reduction of fields: application to wavefunctions in solid state nanostructures
- Nonlocal biphoton generation in Werner state from a single semiconductor quantum dot
- Quantum correlations and violation of Bell inequality induced by External Field in a two photon radiative cascade
- Theoretical framework of entangled-photon generation from biexcitons in nano-to-bulk crossover regime with planar geometry
- Non-classical correlation of cascaded photon pairs emitted from quantum dot