Real-time ghost imaging of Bell-nonlocal entanglement between a photon and a quantum memory
arXiv:2102.11805 · doi:10.22331/q-2021-07-01-493
Abstract
Certification of nonlocality of quantum mechanics is an important fundamental test that typically requires prolonged data collection and is only revealed in an in-depth analysis. These features are often particularly exposed in hybrid systems, such as interfaces between light and atomic ensembles. Certification of entanglement from images acquired with single-photon camera can mitigate this issue by exploiting multiplexed photon generation. Here we demonstrate this feature in a quantum memory (QM) operating in a real-time feedback mode. Through spatially-multimode spin-wave storage the QM enables operation of the real-time ghost imaging (GI) protocol. By properly preparing the spatial phase of light emitted by the atoms we enable observation of Bell-type nonlocality from a single image acquired in the far field as witnessed by the Bell parameter of . Our results are an important step towards fast and efficient utilization of multimode quantum memories both in protocols and in fundamental tests.
arXiv comment14 pages, 7 figures, 1 table
References in corpus (27)
- Significant-loophole-free test of Bell's theorem with entangled photons
- A strong loophole-free test of local realism
- Two-photon "ghost" imaging with thermal light
- Advances in Photonic Quantum Sensing
- From Bell's Theorem to Secure Quantum Key Distribution
- Pulsed energy-time entangled twin-photon source for quantum communication
- Experimental demonstration of a BDCZ quantum repeater node
- Imaging with quantum states of light
- Challenging local realism with human choices
- Imaging high-dimensional spatial entanglement with a camera
- Imaging Through Noise With Quantum Illumination
- EPR-based ghost imaging using a single-photon-sensitive camera
- Quantum memory for entangled two-mode squeezed states
- Einstein-Podolsky-Rosen paradox in twin images
- Wavevector multiplexed quantum memory via spatially-resolved single-photon detection
- Adaptive Quantum Optics with Spatially Entangled Photon Pairs
- Quantum-secured imaging
- Experimental Violation of Bell's Inequality in Spatial-Parity Space
- Postselection-loophole-free Bell violation with genuine time-bin entanglement
- Einstein-Podolsky-Rosen paradox in a hybrid bipartite system
- Certification of high-dimensional entanglement and Einstein-Podolsky-Rosen steering with cold atomic quantum memory
- Higher Order Quantum Ghost Imaging with Ultra-Cold Atoms
- Coherent spin-wave processor of stored optical pulses
- Quantum optics of spin waves through ac Stark modulation
- Massively-multiplexed generation of Bell-type entanglement using a quantum memory
- Spatial spin-wave modulator for quantum memory assisted adaptive measurements
- Microchannel plate cross-talk mitigation for spatial autocorrelation measurements