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A neutron time projection chamber can locate the approximate direction of a neutron hot spot with high efficiency and a 4{\pi} field of view. The angular resolution can be significantly improved by adding several plastic scintillation…

Instrumentation and Detectors · Physics 2019-07-11 Yidong Fu , Yang Tian , Yulan Li , Yigang Yang , Yiming Cai , Jian Yang , Jin Li

The effective bandwidth of an energy dispersive x-ray fluorescence spectroscopy system is limited by the timing of incident photons. When multiple photons strike the detector within the processing time of the detector photon pile-up occurs…

Instrumentation and Detectors · Physics 2016-12-02 Benjamin A Lucas

We analyze a simultaneous continuous measurement of photon-counting and homodyne detection. The stochastic master equation or stochastic Schr\"odinger equation describing the measurement process includes both jump-type and diffusive-type…

Quantum Physics · Physics 2013-10-09 Yui Kuramochi , Yu Watanabe , Masahito Ueda

Single-photon detectors (SPDs) are crucial in applications ranging from space, biological imaging to quantum communication and information processing. The SPDs that operate at room temperature are of particular interest to broader…

Quantum Physics · Physics 2025-09-09 Nithin Abraham , Kenji Watanabe , Takashi Taniguchi , Kausik Majumdar

In this paper we analyze the quantum uncertainties and the photon statistics in the interaction between the two modes of radiation by treating them as coupled harmonic oscillator with the motivation of controlling quantum properties of one…

atom-ph · Physics 2010-12-14 Abir Bandyopadhyay , Jagdish Rai

The high-rate detection of entangled photons is essential for advancing photonic quantum information processing. Although several experimental demonstrations have been reported, the achievable coincidence rates have so far remained limited.…

An entangled photon experiment has been performed with a large variation of the temperature of the non-linear crystal generating the entangled pair by spontaneous downconversion. The photon pairs are separated by a nonpolarizing…

Quantum Physics · Physics 2019-09-04 Joakim Bergli , Guillaume Adenier , Andreas P. Thörn , Arnt Inge Vistnes

In atomic and molecular phase measurements using laser-induced fluorescence detection, optical cycling can enhance the effective photon detection efficiency and hence improve sensitivity. We show that detecting many photons per atom or…

Atomic Physics · Physics 2018-11-21 Zack Lasner , David DeMille

We derive a computationally efficient expression of the photon counting distribution for a uniformly illuminated array of single photon detectors. The expression takes the number of single detectors, their quantum efficiency, and their…

Quantum Physics · Physics 2020-01-22 Mattias Jönsson , Gunnar Björk

Variable measurement operators enable the optimization of strategies for testing quantum properties and the preparation of a range of quantum states. Here, we experimentally implement a weak-field homodyne detector that can continuously…

We report measurements of counting statistics, average and variance, of microwave photons of ill-defined frequency : bichromatic photons, i.e. photons involving two well separated frequencies, and "white" broadband photons. Our setup allows…

Quantum Physics · Physics 2024-12-10 Simon Bolduc Beaudoin , Edouard Pinsolle , Bertrand Reulet

Detecting electronic hot spots is important for understanding the heat dissipation and thermal management of electronic and semiconductor devices. Optical thermoreflective imaging is being used to perform precise temporal and spatial…

We introduce and experimentally implement a method for the absolute detector calibration of photon-number-resolving time-bin multiplexing layouts based on the measured click statistics of superconduncting nanowire detectors. In particular,…

Quantum Physics · Physics 2017-03-10 Martin Bohmann , Regina Kruse , Jan Sperling , Christine Silberhorn , Werner Vogel

We present the measurement of squeezed light generation using an engineered optomechanical system fabricated from a silicon microchip and composed of a micromechanical resonator coupled to a nanophotonic cavity. Laser light is used to…

A complete characterization of quantum fluctuations in many-body systems is accessible through the full counting statistics. We present an exact computation of statistical properties of light in a basic model of light-matter interaction: a…

Quantum Physics · Physics 2013-02-14 Mikhail Pletyukhov , Matouš Ringel , Vladimir Gritsev

We develop a comprehensive model for the effective two-photon density matrix produced by a parametric source of entangled photon pairs under a variety of detector configurations commonly seen in a laboratory setting: two and four photon…

Quantum Physics · Physics 2025-08-25 Taman Truong , Christian Arenz , Joseph M. Lukens

Optimal measurement scheme with an efficient data processing is important in quantum-enhanced interferometry. Here we prove that for a general binary outcome measurement, the simplest data processing based on inverting the average signal…

Quantum Physics · Physics 2014-07-11 X. M. Feng , G. R. Jin , W. Yang

We investigate steady-state thermal transport and photon statistics in a nonequilibrium hybrid quantum system, in which a qubit is longitudinally and quadratically coupled to an optical resonator. Our calculations are conducted with the…

Quantum Physics · Physics 2021-09-08 Chen Wang , Hua Chen , Jie-Qiao Liao

We obtain coincidence rates for passive optical interferometry by exploiting the permutational symmetries of partially distinguishable input photons, and our approach elucidates qualitative features of multi-photon coincidence landscapes.…

Quantum Physics · Physics 2018-06-22 Abdullah Khalid , Dylan Spivak , Barry C. Sanders , Hubert de Guise

We measure the population distribution in one of the atomic twin beams generated by four-wave mixing in an optical lattice. Although the produced two-mode squeezed vacuum state is pure, each individual mode is described as a statistical…

Quantum Physics · Physics 2019-07-03 M. Perrier , Z. Amodjee , P. Dussarrat , A. Dareau , A. Aspect , M. Cheneau , D. Boiron , C. I. Westbrook