Results 51 to 60 of about 3,504,323 (217)
Interaction‐Free Quantum Spectroscopy
Advanced Photonics Research, 2021 Interaction‐free measurement (IFM)‐based single‐photon interference is developed as a powerful platform for revealing object information in quantum metrology, where the presence of a sample is identified without photon “touching” in an interferometer ...
Yu Chen +5 more
doaj +1 more source
Imaging high-dimensional spatial entanglement with a camera [PDF]
, 2012 The light produced by parametric down-conversion shows strong spatial entanglement that leads to violations of EPR criteria for separability. Historically, such studies have been performed by scanning a single-element, single-photon detector across a ...
Leach, J. +17 more
core +1 more source
Telecom quantum photonic interface for a 40Ca+ single-ion quantum memory
npj Quantum Information, 2023 Entanglement-based quantum networks require quantum photonic interfaces between stationary quantum memories and photons, enabling entanglement distribution.
Elena Arenskötter +5 more
doaj +1 more source
On the geometry of spatial biphoton correlation in spontaneous parametric down conversion [PDF]
Mathematical Methods in the Applied Sciences, 2014 Analytical expressions are derived for the distribution rates of spatial coincidences in the counting of photons produced by spontaneous parametric down conversion. Gaussian profiles are assumed for the wave function of the idler and signal light created in type‐I spontaneous parametric down conversion.
Procopio, L. M. +2 more
openaire +3 more sources
Polarization Sensitive Imaging with Qubits
Applied Sciences, 2022 We compare reconstructed quantum state images of a birefringent sample using direct quantum state tomography and inverse numerical optimization technique.
Vitaly Sukharenko, Roger Dorsinville
doaj +1 more source
, 2013 We investigate the spontaneous parametric down-conversion (SPDC) process in biaxial nonlinear crystal BiB3O6 (BIBO) with a broadband pump. Under the type I and type II phase-matching conditions, we numerically calculate the influencing factors on SPDC ...
Zhao, Wei +4 more
core +1 more source
Optical Potts machine through networks of three-photon down-conversion oscillators
Nanophotonics, 2020 In recent years, there has been a growing interest in optical simulation of lattice spin models for applications in unconventional computing. Here, we propose optical implementation of a three-state Potts spin model by using networks of coupled ...
Honari-Latifpour Mostafa +1 more
doaj +1 more source
Photonics, 2022 We propose and theoretically investigate two-photon orbital angular momentum (OAM) correlation through spontaneous parameter down-conversion (SPDC) processes in three-dimensional (3D) spiral nonlinear photonic crystals (NPCs).
Qian Yu +8 more
doaj +1 more source
Atom-mediated spontaneous parametric down-conversion in periodic waveguides [PDF]
Optics Letters, 2017 We propose the concept of atom-mediated spontaneous parametric down-conversion, in which photon-pair generation can take place only in the presence of a single two-level emitter, relying on the bandgap evanescent modes of a nonlinear periodic waveguide.
Sina Saravi +4 more
openaire +3 more sources
, 2018 The realization of efficient and miniature source of entangled photon pairs stills remains a challenge. In this work, we experimentally studied the possibility to enhance the process of spontaneous parametric down-conversion by surface plasmon polaritons.
Ardi Loot (6065270) +4 more
core +1 more source