Post-selection free spatial Bell state generation
arXiv:1610.06757 · doi:10.1103/PhysRevLett.118.030503
Abstract
Spatial states of single photons and spatially entangled photon pairs are becoming an important resource in quantum communication. This additional degree of freedom provides an almost unlimited information capacity, making the development of high-quality sources of spatial entanglement a well-motivated research direction. We report an experimental method for generation of photon pairs in a maximally entangled spatial state. In contrast to existing techniques the method does not require post-selection and allows one to use the full photon flux from the nonlinear crystal, providing a tool for creating high-brightness sources of pure spatially entangled photons. Such sources are a prerequisite for emerging applications in free-space quantum communication.
7 pages, 6 figures
References in corpus (22)
- Space Division Multiplexing in Optical Fibres
- Entanglement of Orbital Angular Momentum States of Photons
- On the Measurement of Qubits
- Generation of Hyperentangled Photons Pairs
- From Bell's Theorem to Secure Quantum Key Distribution
- Management of the Angular Momentum of Light: Preparation of Photons in Multidimensional Vector States of Angular
- Analysis and interpretation of high transverse entanglement in optical parametric down conversion
- A wavelength-tunable fiber-coupled source of narrowband entangled photons
- Complete experimental toolbox for alignment-free quantum communication
- Quantum spiral bandwidth of entangled two-photon states
- Twisted photon entanglement through turbulent air across Vienna
- Multimode Hong-Ou-Mandel interference
- Entanglement and conservation of orbital angular momentum in spontaneous parametric down-conversion
- Full-field quantum correlations of spatially entangled photons
- Conservation and entanglement of Hermite-Gaussian modes in parametric down-conversion
- Experimental Violation of Bell's Inequality in Spatial-Parity Space
- Angular Schmidt Modes in Spontaneous Parametric Down-Conversion
- Schmidt modes generated in parametric downconversion
- Generalized Hermite-Gauss decomposition of the two-photon state produced by spontaneous parametric down-conversion
- Entanglement of the Hermite-Gaussian modes states of photons
- Tailored two-photon correlation and fair-sampling: a cautionary tale
- Tomography of Spatial Mode Detectors
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- Adaptive quantum tomography of high-dimensional bipartite systems
- Quantum hashing via single-photon states with orbital angular momentum
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- Beam focusing and reduction of quantum uncertainty in width at the few-photon level via multi-spatial-mode squeezing
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- Temporally Asymmetric Bi-photon States in Cavity Enhanced Optical Parametric Processes
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