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Related papers: Photon number variance in isolated cavities

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We present a thorough analysis of single atom detection using optical cavities. The large set of parameters that influence the signal-to-noise ratio for cavity detection is considered, with an emphasis on detunings, probe power, cavity…

Quantum Physics · Physics 2008-08-07 R. Poldy , B. C. Buchler , J. C. Close

Dressing quantum states of matter with virtual photons can create exotic effects ranging from vacuum-field modified transport to polaritonic chemistry, and may drive strong squeezing or entanglement of light and matter modes. The…

Quantum Physics · Physics 2023-09-14 J. Mornhinweg , L. Diebel , M. Halbhuber , M. Prager , J. Riepl , T. Inzenhofer , D. Bougeard , R. Huber , C. Lange

A hypothetical violation of Lorentz invariance in the electrons' equation of motion (expressed within the Lorentz-violating extension of the standard model) leads to a change of the geometry of crystals and thus shifts the resonance…

High Energy Physics - Phenomenology · Physics 2008-11-26 Holger Mueller , Sven Herrmann , Alejandro Saenz , Achim Peters , Claus Laemmerzahl

We demonstrate several building blocks for an ion-photon interface based on a trapped Ca ion in an optical cavity. We identify a favorable experimental configuration and measure system parameters, including relative motion of the trapped…

Quantum Physics · Physics 2015-05-28 A. Stute , B. Casabone , B. Brandstätter , D. Habicher , P. O. Schmidt , T. E. Northup , R. Blatt

Semiconductor quantum dots in cavities are promising single-photon sources. Here, we present a path to deterministic operation, by harnessing the intrinsic linear dipole in a neutral quantum dot via phonon-assisted excitation. This enables…

Applications that envisage utilizing the orbital angular momentum (OAM) at the single photon level assume that the OAM degrees of freedom that the photons inherit from the classical wave solutions are orthogonal. To test this critical…

Quantum Physics · Physics 2017-10-20 Alexander Punnoose , Jiufeng J. Tu

Angle-resolved photoemission spectra of alkali metals exhibit a puzzling, non-dispersing peak in the apparent density of states near the Fermi energy. We argue that the holes left behind a significant fraction of photoejected electrons are…

Strongly Correlated Electrons · Physics 2024-02-01 Roman Dmitriev , Jenny Green , Vassiliy Lubchenko

A conversion-reconversion experimental scheme is proposed where photons stored in a Fabry-Perot cavity (FP) embracing a dipole conversion magnet generate two beams of ultralight bosons emitted in opposite directions. Fractions of the bosons…

High Energy Physics - Experiment · Physics 2007-05-23 Ugo Gastaldi

The possibility of storage of quantum information with photons is studied in the case of resonant transitions via many close lying exciton levels in a solid with impurity Lambda-atoms. The upper levels of the impurity atom form resonant…

Quantum Physics · Physics 2015-05-13 A. D. Gazazyan , E. A. Gazazyan , A. G. Margaryan

We predict that the collective excitations of an atomic array become entangled with the light of a high-finesse cavity mode when they are suitably coupled. This entanglement is of Einstein-Podolsky-Rosen type, it is robust against cavity…

Quantum Physics · Physics 2014-02-20 Hessam Habibian , Stefano Zippilli , Fabrizio Illuminati , Giovanna Morigi

We investigate the photon statistics of light emitted from a system of collectively interacting dipoles in the low-intensity regime, incorporating double-excitation states to capture beyond-single-excitation effects. By analyzing the…

Quantum Physics · Physics 2026-03-18 Deepak A. Suresh , F. Robicheaux

Cavity-based quantum node is a competitive platform for distributed quantum networks. Here, we characterize a high-finesse Fabry-Perot optical resonator for coupling single or few atomic quantum registers. Our cavity consists of two mirrors…

We investigate quantum beats in the arrival-time distribution of single photons from a single trapped $^{40}$Ca$^+$ ion, revealing their fundamentally different physical origins in two distinct experimental situations: In a $\Lambda$-type…

Quantum Physics · Physics 2014-08-19 Michael Schug , Christoph Kurz , Pascal Eich , Jan Huwer , Philipp Müller , Jürgen Eschner

We investigate experimentally the number statistics of a mesoscopic ensemble of cold atoms in a microscopic dipole trap loaded from a magneto-optical trap, and find that the atom number fluctuations are reduced with respect to a Poisson…

Quantum Physics · Physics 2015-06-03 Y. R. P. Sortais , A. Fuhrmanek , R. Bourgain , A. Browaeys

We investigate the bistability in a small Fabry-Perot interferometer (FPI) with the optical wavelength size cavity, the nonlinear Kerr medium and only a few photons, on average, excited by the external quantum field. Analytical expressions…

Quantum Physics · Physics 2023-08-25 Igor E. Protsenko , Alexander V. Uskov

A single atom in a cavity is the model system of cavity quantum electrodynamics (CQED). The strong coupling regime between the atom and cavity-confined photon corresponds to the reversible exchange of energy between the two modes, and…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 D. Sanvitto , F. P. Laussy , F. Bello , D. M. Whittaker , A. M. Fox , M. S. Skolnick , A. Tahraoui , P. W. Fry , M. Hopkinson

We report on a direct search for a three-body decay of the orthopositronium into a photon and two penetrating particles, o-Ps -> gamma + X1 + X2. The existence of this decay could explain the discrepancy between the measured and the…

High Energy Physics - Experiment · Physics 2008-11-26 A. Badertscher , P. Crivelli , M. Felcini , S. N. Gninenko , N. A. Goloubev , P. Nedelec , J. P. Peigneux , V. Postoev , A. Rubbia , D. Sillou

In the past few years, coupling strengths between light and mechanical motion in optomechanical setups have improved by orders of magnitude. Here we show that, in the standard setup under continuous laser illumination, the steady state of…

Mesoscale and Nanoscale Physics · Physics 2012-12-21 Jiang Qian , A. A. Clerk , K. Hammerer , Florian Marquardt

We consider the single photon transistor in coupled cavity system of resonators interacting with multilevel superconducting artificial atom simultaneously. Effective single mode transformation is used for the diagonalization of the the…

Quantum Physics · Physics 2018-04-04 Yusuf Gul

We obtain explicit analytical expressions for the quadrature variances and the photon distribution functions of the electromagnetic field modes excited from vacuum or thermal states due to the non-stationary Casimir effect in an ideal…

Quantum Physics · Physics 2009-10-31 V. V. Dodonov , M. A. Andreata