Results 1 to 10 of about 129,349 (334)
BB84 Quantum Key Distribution System based on Silica-Based Planar Lightwave Circuits [PDF]
We constructed an optical interferometer for a Bennett-Brassard quantum key distribution system using integrated optics based on planar lightwave circuit technology, and tested its operation and stability.
Hatanaka, Takaaki +2 more
core +1 more source
Two-photon quantum walks in an elliptical direct-write waveguide array
Integrated optics provides an ideal test bed for the emulation of quantum systems via continuous-time quantum walks. Here we study the evolution of two-photon states in an elliptic array of waveguides. We characterise the photonic chip via coherent-light
A Fedrizzi +16 more
core +1 more source
Quantum Photonic Simulation of Spin-Magnetic Field Coupling and Atom-Optical Field Interaction
In this work, we present the physical simulation of the dynamical and topological properties of atom-field quantum interacting systems by means of integrated quantum photonic devices.
Jesús Liñares +3 more
doaj +1 more source
A space-based quantum gas laboratory at picokelvin energy scales
Ultracold ensembles are promising sources for precision measurements when their quantum state can precisely be prepared. Here the authors achieve a quantum state engineering of Bose-Einstein condensates in space using NASA’s Cold Atom Lab aboard the ...
Naceur Gaaloul +12 more
doaj +1 more source
Polarization entangled state measurement on a chip
The emerging strategy to overcome the limitations of bulk quantum optics consists of taking advantage of the robustness and compactness achievable by the integrated waveguide technology. Here we report the realization of a directional coupler, fabricated
Crespi, A. +6 more
core +1 more source
Yoctocalorimetry: phonon counting in nanostructures [PDF]
It appears feasible with nanostructures to perform calorimetry at the level of individual thermal phonons. Here I outline an approach employing monocrystalline mesoscopic insulators, which can now be patterned from semiconductor heterostructures into ...
Abrahams +45 more
core +3 more sources
Magneto-optical trapping using planar optics
Laser-cooled atoms are a key technology for many calibration-free measurement platforms—including clocks, gyroscopes, and gravimeters—and are a promising system for quantum networking and quantum computing.
William R McGehee +9 more
doaj +1 more source
We present a quartz enhanced photoacoustic spectroscopy (QEPAS) gas sensor designed for precise monitoring of ammonia (NH3) at ppb-level concentrations.
Shangzhi Li +8 more
doaj +1 more source
Towards integrated superconducting detectors on lithium niobate waveguides
Superconducting detectors are now well-established tools for low-light optics, and in particular quantum optics, boasting high-efficiency, fast response and low noise.
Bartley, Tim J. +17 more
core +1 more source
Prospects for using integrated atom-photon junctions for quantum information processing
We investigate the use of integrated, microfabricated photonic-atomic junctions for quantum information processing applications. The coupling between atoms and light is enhanced by using microscopic optics without the need for cavity enhancement.
Hinds, E. A., Nyman, R. A., Scheel, S.
core +1 more source

