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Magneto-optical traps are central to atomic and molecular quantum technologies and precision tests of fundamental physics, where both sensitivity and bandwidth scale strongly with atom number and loading rate. We demonstrate that employing…

Single atom imaging requires discrimination of weak photon count events above background and has typically been performed using either EMCCD cameras, photomultiplier tubes or single photon counting modules. sCMOS provides a cost effective…

Atomic Physics · Physics 2018-03-26 C. J. Picken , R. Legaie , J. D. Pritchard

The integrated optical circuit is a promising architecture for the realization of complex quantum optical states and information networks. One element that is required for many of these applications is a high-efficiency photon detector…

Strong atom-photon interactions on scalable photonic platforms hold significant potential for both atomic and photonic quantum information platforms. In particular, trapping of a single atom on a planar photonic integrated resonator at the…

In this work we propose a microwave photon detector which successfully reaches 100% efficiency with only one absorber. Our design consists of a metastable quantum circuit coupled to a semi-infinite transmission line which performs highly…

Mesoscale and Nanoscale Physics · Physics 2012-03-22 B. Peropadre , G. Romero , G. Johansson , C. M. Wilson , E. Solano , J. J. García-Ripoll

We demonstrate low-loss measurement of the hyperfine ground state of Rubidium atoms in a dipole trap array of five sites by state dependent fluorescence detection. The presence of atoms and their internal states are minimally altered by…

Quantum Physics · Physics 2017-11-08 Minho Kwon , Matthew F. Ebert , Thad G. Walker , M. Saffman

We describe an atom trapping mechanism based upon differential optical pumping between metastable hyperfine states by partially-displaced laser beams in the absence of a magnetic field. With realistic laser powers, trap spring constants…

Atomic Physics · Physics 2015-06-15 Nathan Cooper , Tim Freegarde

We propose a general methodology for efficient statistical reconstruction of a quantum state through collection and analysis of photon counting statistics. Our approach includes both strict quantitative criteria for adequacy and…

Quantum Physics · Physics 2013-11-07 Yu. I. Bogdanov , S. P. Kulik

We present a method for determining the atom number distribution of few atoms in a tight optical tweezer from their fluorescence distributions. In the tight tweezer regime, the detection light causes rapid atom loss due to light-assisted…

Atomic Physics · Physics 2025-06-19 M. Weyland , L. Sanchez , P. Ruksasakchai , M. F. Andersen

Dark photon is one of the promising candidates of light dark matter and could be detected by using its interaction with standard model particles via kinetic mixings. Here, we propose a feasible approach to detect the dark photons by…

Quantum Physics · Physics 2024-12-03 Suirong He , De He , Yufen Li , Li Gao , Xianing Feng , Hao Zheng , L. F. Wei

We demonstrate a combined magneto-optical trap and imaging system that is suitable for the investigation of cold atoms near surfaces. In particular, we are able to trap atoms close to optically scattering surfaces and to image them with an…

Atomic Physics · Physics 2011-01-04 Hamid Ohadi , Matthew Himsworth , André Xuereb , Tim Freegarde

Efficient collection of fluorescence from trapped ions is crucial for quantum optics and quantum computing applications, specifically, for qubit state detection and in generating single photons for ion-photon and remote ion entanglement. In…

Quantum Physics · Physics 2015-05-14 G. Shu , N. Kurz , M. R. Dietrich , B. B. Blinov

In order to faithfully detect the state of an individual two-state quantum system (qubit) realized using, for example, a trapped ion or atom, state selective scattering of resonance fluorescence is well established. The simplest way to read…

Quantum Physics · Physics 2015-04-23 Sabine Wölk , Christian Piltz , Theeraphot Sriarunothai , Christof Wunderlich

We study distinguishability of photons in multiphoton interference on a multiport when fast detectors, capable of precise time resolution, are employed. Such a setup was previously suggested for experimental realization of boson sampling…

Quantum Physics · Physics 2020-05-27 V. S. Shchesnovich , M. E. O. Bezerra

In this paper, we propose a resources-optimal linear-optical scheme for quantum nondemolition detection of single-photon presence. By measuring the state of ancillary photons, the presence of a photon in signal mode is revealed with a…

Quantum Physics · Physics 2013-06-05 Marek Bula , Karol Bartkiewicz , Antonín Černoch , Karel Lemr

The capability to measure the state of a quantum system is vital to a practical quantum network, for applications including distributed quantum computing and long-distance quantum communication. As a thriving platform for quantum…

Spontaneously emitted photons are entangled with the electronic and nuclear degrees of freedom of the emitting atom, so interference and measurement of these photons can entangle separate matter-based quantum systems as a resource for…

We use (1+1$'$) resonance-enhanced multiphoton photodissociation (REMPD) to detect the population in individual rovibronic states of trapped HfF$^+$ with a single-shot absolute efficiency of 18%, which is over 200 times better than that…

Atomic Physics · Physics 2015-06-18 Kang-Kuen Ni , Huanqian Loh , Matt Grau , Kevin C. Cossel , Jun Ye , Eric A. Cornell

We introduce a new, highly sensitive, and simple heterodyne optical method for imaging individual non-fluorescent nano-objects. A two orders of magnitude improvement of the signal is achieved compared to previous methods. This allows for…

Other Condensed Matter · Physics 2007-05-23 Stephane Berciaud , Laurent Cognet , Gerhard Blab , Brahim Lounis

We report on the detection of single photons with {\lambda} = 8 {\mu}m using a superconducting hot-electron microbolometer. The sensing element is a titanium transition-edge sensor with a volume ~ 0.1 {\mu}m^3 fabricated on a silicon…