Publications related to Virtual photon

Nuclear Excitation by Free Muon Capture

Fabrizio Carbone, Ivan Madan, Simone Gargiulo

Efficient excitation of nuclei via exchange of a real or virtual photon has a fundamental importance for nuclear science and technology development. Here, we present a mechanism of nuclear excitation based on the capture of a free muon into the atomic orbi ...

AMER PHYSICAL SOC2022

Gravitational causality and the self-stress of photons

Brando Bellazzini, Giulia Isabella

We study causality in gravitational systems beyond the classical limit. Using on-shell methods, we consider the 1-loop corrections from charged particles to the photon energy-momentum tensor - the self-stress - that controls the quantum interaction between ...

Springer Nature2022

Strong constraints on the b -> s gamma photon polarisation from B-0 -> K(*0)e(+)e(-) decays

Olivier Schneider, Aurelio Bay, Yiming Li, Guido Haefeli, Frédéric Blanc, Christoph Frei, Tatsuya Nakada, Michel De Cian, Luca Pescatore, Matthieu Philippe Luther Marinangeli, Minh Tâm Tran, François Fleuret, Pietro Marino, Federico Leo Redi, Elena Graverini, Chitsanu Khurewathanakul, Maxime Schubiger, Guido Andreassi, Renato Quagliani, Violaine Bellée, Federico Betti, Preema Rennee Pais, Pavol Stefko, Aravindhan Venkateswaran, Tara Nanut, Luis Miguel Garcia Martin, Maria Elena Stramaglia, Vitalii Lisovskyi, Vladimir Macko, Veronica Sølund Kirsebom, Guillaume Max Pietrzyk, Jian Wang, Mingkui Wang, Sebastian Schulte, Zhirui Xu, Ana Bárbara Rodrigues Cavalcante, Brice Emile Maurin, Yi Zhang, Vincenzo Battista, Lei Zhang, , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , ,

Strongly correlated Fermions strongly coupled to light

Jean-Philippe Brantut, Victor Youri Helson, Kevin Etienne Robert Roux, Hideki Konishi

Strong quantum correlations in matter are responsible for some of the most extraordinary properties of materials, from magnetism to high-temperature superconductivity, but their integration in quantum devices requires a strong, coherent coupling with photo ...

Nature Research2020

First Experimental Study of Photon Polarization in Radiative B-s(0) Decays

Olivier Schneider, Aurelio Bay, Yiming Li, Guido Haefeli, Frédéric Blanc, Christoph Frei, Tatsuya Nakada, Michel De Cian, Luca Pescatore, François Fleuret, Elena Graverini, Chitsanu Khurewathanakul, Renato Quagliani, Federico Betti, Aravindhan Venkateswaran, Luis Miguel Garcia Martin, Jian Wang, Zhirui Xu, Yi Zhang, Lei Zhang, Jessica Prisciandaro, Mark Tobin, Minh Tâm Tran, Niko Neufeld, Matthew Needham, Marc-Olivier Bettler, Greig Alan Cowan, Maurizio Martinelli, Donal Patrick Hill, Cédric Potterat, Liang Sun, Pietro Marino, Mirco Dorigo, Jean Wicht, Xiaoxue Han, Sebastiana Gianì, Liupan An, Federico Leo Redi, Ilya Komarov, Thibaud Humair, Maxime Schubiger, Hang Yin, , , , , , , , , , , , , , , , , , ,

Polarization of photons emitted by decaying dark matter

Mikhail Chapochnikov, Anna Tokareva

Radiatively decaying dark matter may be searched through investigating the photon spectrum of galaxies and galaxy clusters. We explore whether the properties of dark matter can be constrained through the study of a polarization state of emitted photons. St ...

Elsevier2017

One-dimensional Bose-Einstein condensation of photons in a microtube

Oleksandr Kriuchkov

This paper introduces a quasiequilibrium one-dimensional Bose-Einstein condensation of photons trapped in a microtube. Light modes with a cutoff frequency (a photon's "mass") interact through different processes of absorption, emission, and scattering on m ...

2016

Observation of Photon Polarization in the b -> s gamma Transition

Olivier Schneider, Aurelio Bay, Yiming Li, Guido Haefeli, Frédéric Blanc, Christoph Frei, Tatsuya Nakada, Julien Rouvinet, Barinjaka Rakotomiaramanana, Raluca Anca Muresan, Michel De Cian, Luca Pescatore, Chitsanu Khurewathanakul, Jian Wang, Yi Zhang, Lei Zhang, Jessica Prisciandaro, Mark Tobin, Minh Tâm Tran, Niko Neufeld, Matthew Needham, Marc-Olivier Bettler, Greig Alan Cowan, Maurizio Martinelli, Vladislav Balagura, Donal Patrick Hill, Cédric Potterat, Liang Sun, Pietro Marino, Mirco Dorigo, Jean Wicht, Sebastiana Gianì, Ilya Komarov, Bastien Luca Muster, Frédéric Guillaume Dupertuis, Pierre Jaton, Joël Bressieux, Songmei Wu, Hans Dijkstra, Gerhard Raven, Peter Clarke, Frédéric Teubert, , , , ,

Four-lepton production at hadron colliders: aMC@NLO predictions with theoretical uncertainties

Valentin Hirschi, Paolo Torrielli

We use aMC@NLO to study the production of four charged leptons at the LHC, performing parton showers with both HERWIG and PYTHIA6. Our underlying matrix element calculation features the full next-to-leading order O(alpha(S)) result and the O(alpha(2)(S)) c ...

Springer Nature2012

Measurement of gamma gamma* -> pi(0) transition form factor at Belle

Olivier Schneider, Remi Léandre Albert Louvot, Yiming Li, Chao Wang, Tagir Aushev, Jun Yong Kim, Ji Hyun Kim, Jing Li

We report a measurement of the process gamma gamma* -> pi(0) with a 759 fb(-1) data sample recorded with the Belle detector at the KEKB asymmetric-energy e(+)e(-) collider. The pion transition form factor, F(Q(2)), is measured for the kinematical region 4 ...

American Physical Society2012

Microscopic theory of the Casimir force at thermal equilibrium: Large-separation asymptotics

We present an entirely microscopic calculation of the Casimir force f(d) between two metallic plates in the limit of large separation d. The models of metals consist of mobile quantum charges in thermal equilibrium with the photon field at positive tempera ...

2008

Cavity optomechanics: Back-action at the mesoscale

Tobias Kippenberg

The coupling of optical and mechanical degrees of freedom is the underlying principle of many techniques to measure mechanical displacement, from macroscale gravitational wave detectors to microscale cantilevers used in scanning probe microscopy. Recent ex ...

American Association for the Advancement of Science2008

Effect of interface disorder on quantum well excitons and microcavity polaritons

Vincenzo Savona

The theory of the linear optical response of excitons in quantum wells and polaritons in planar semiconductor microcavities is reviewed, in the light of the existing experiments. For quantum well excitons, it is shown that disorder mainly affects the excit ...

2007

Engineering the spatial confinement of exciton polaritons in semiconductors

Benoît Marie Joseph Deveaud, Vincenzo Savona, Jean-Daniel Ganière, François Morier-Genoud, Taofiq Paraïso, Ounsi El Daïf, Reda Idrissi Kaitouni, Pierre Lugan

We demonstrate three-dimensional spatial confinement of exciton-polaritons in a semiconductor microcavity. Polaritons are confined within a micron-sized region of slightly larger cavity thickness, called mesa, through lateral trapping of their photon compo ...

2006

Measurement of exclusive ρ+ρ- production in mid-virtuality two-photon interactions and study of the γγ* → ρρ process at LEP

Aurelio Bay, Qian Wang, Horst Vogel, Eduardo Sanchez, Zhirui Xu, Werner Lustermann, Liang Sun, Jian Zhao, Ji Hyun Kim, Zheng Wang, Matthias Weber, Xiao Wang

Exclusive ρ+ρ- production in two-photon collisions between a quasi-real photon, γ, and a mid-virtuality photon, γ*, is studied with data collected at LEP at centre-of-mass energies 183 GeV≤√s≤209 GeV with a total integrated luminosity of 684.8 pb-1. The cr ...

2005