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Photo-absorption in fully ionized plasmas in high magnetic fields is re-examined, using the methods of many-body quantum field theory. For frequencies in the immediate vicinity of the electron cyclotron resonance the rates we obtain…

Astrophysics · Physics 2010-04-07 R. F. Sawyer

We report on the study of extremely high energy photons, pions and etas, produced in intermediate energy heavy-ion collisions. Possibility of imaging the final-state phase space in these collisions by the Bose-Einstein correlations for…

Nuclear Theory · Physics 2007-05-23 K. Gudima , M. Ploszajczak

Recent experimental progress in quantum information processing with trapped ions have demonstrated most of the fundamental elements required to realize a scalable quantum computer. The next set of challenges lie in realization of a large…

Quantum Physics · Physics 2008-12-15 Jungsang Kim , Changsoon Kim

According to the Received View identical quantum particles are a previously unknown kind of objects that do not possess individuality. In this Chapter we discuss this view, criticize it, and propose an alternative. According to this…

Quantum Physics · Physics 2022-11-11 Dennis Dieks

We compute the hard photon production rate of a chemically non-equilibrated quark-gluon plasma. We assume that the plasma is already thermally equilibrated, i.~e. describable by a temperature, but with a phase-space distribution that…

High Energy Physics - Phenomenology · Physics 2008-11-26 Christoph T. Traxler , Markus H. Thoma

The validity of the equivalent-photon approximation for two-photon processes in electron--positron collisions is critically examined. Commonly used forms to describe hadronic two-photon production are shown to lead to sizeable errors. An…

High Energy Physics - Phenomenology · Physics 2007-05-23 Gerhard A. Schuler

Spectra of various particle species have been calculated with the Quantum Molecular Dynamics (QMD) model for very central collisions of Au+Au. They are compatible with the idea of a fully stopped thermal source which exhibits a transversal…

Nuclear Theory · Physics 2009-10-28 Jens Konopka , Horst Stoecker , Walter Greiner

We previously suggested that photon exchange interactions could be used to produce nonlinear effects at the two-photon level, and similar effects have been experimentally observed by Resch et al. (quant-ph/0306198). Here we note that photon…

Quantum Physics · Physics 2009-11-10 J. D. Franson

The physics of peripheral collisions with relativistic heavy ions (PCRHI) is reviewed. One- and two-photon processes are discussed.

Nuclear Theory · Physics 2011-07-19 C. A. Bertulani

Comment on A.F. Abouraddy, P.R. Stone, A.V. Sergienko, B.E.A. Saleh, and M.C. Teich, ``Entangled-Photon Imaging of a Pure Phase Object,'' Phys. Rev. Lett. 93, 213903 (2004). Unpublished (rejected by Physical Review Letters), but for a…

Quantum Physics · Physics 2007-05-23 M. Bache , A. Gatti , E. Brambilla , D. Magatti , F. Ferri , L. A. Lugiato

The production of mesons in ultra-peripheral collisions of relativistic heavy ions is re-analyzed using a projection technique to calculate the amplitudes for the appropriate Feynman diagrams. The virtuality of the exchanged photons is…

Nuclear Theory · Physics 2011-07-19 C. A. Bertulani , F. Navarra

The photon model of light has been known for decades to be self-inconsistent and controversial theory with numerous intrinsic conflicts. This paper revises the model and explores its applicability for description of classical…

General Physics · Physics 2021-06-16 Yuriy Akimov , Pavlo Rutkevych

The kinetic theory recently implemented in heavy ion reactions combines a non-local and non-instant picture of binary collisions with quasiparticle features. We show that the non-instant description is compatible with the spectral concept…

Nuclear Theory · Physics 2009-10-31 Pavel Lipavský , Václav Špička , Klaus Morawetz

The recently published PHENIX data of direct photons at low pt from Au+Au collisions at the BNL relativestic Heavy Ion Collider (RHIC) energy 200 GeV have attracted a lot of theoretic interest. Here I review our theoretical calculation…

Nuclear Theory · Physics 2011-09-08 Fu-Ming Liu

After years of experimental and theoretical efforts, direct photons become a strong and reliable tool to establish the basic characteristics of a hot and dense matter produced in heavy ion collisions. The recent direct photon measurements…

Nuclear Experiment · Physics 2008-11-26 Takao Sakaguchi

We quantitatively investigate the non-classicality and non-locality of a whole new class of mixed disparate quantum and semiquantum photon sources at the quantum-classical boundary. The latter include photon added thermal and photon added…

Quantum Physics · Physics 2015-05-19 R. Wiegner , J. von Zanthier , G. S. Agarwal

Photon-based spectroscopies have had a significant impact on both fundamental science and applications by providing an efficient approach to investigate the microscopic physics of materials. Together with the development of synchrotron…

Strongly Correlated Electrons · Physics 2018-09-06 Yao Wang , Martin Claassen , Chaitanya Das Pemmaraju , Chunjing Jia , Brian Moritz , Thomas P. Devereaux

We have investigated $B_c$ spectroscopy with the use of a quantum-chromodynamic potential model which was recently used by us for the light-heavy quarkonia. We give our predictions for the energy levels and the $E$1 transition widths. We…

High Energy Physics - Phenomenology · Physics 2011-01-27 Suraj N. Gupta , James M. Johnson

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

The cross section for single K-shell ionization by a high-energy photon is evaluated in the next-to-leading order of the nonrelativistic perturbation theory with respect to the electron-electron interaction. The screening corrections are of…

Atomic Physics · Physics 2009-11-11 A. I. Mikhailov , A. V. Nefiodov , G. Plunien