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Production of a massive neutrino-antineutrino pair by a virtual polarized photon in the Weiberg-Salam model with mixing is studied. The rate of the neutrino production by photons with various polarizations is found at values of the magnetic…

High Energy Physics - Phenomenology · Physics 2007-05-23 V. Ch. Zhukovskii , A. E. Grigoruk , K. G. Levtchenko , P. A. Eminov

We discuss a possibility of detecting a coherent photon pair emission and related radiative neutrino pair emission from excited atoms. It is shown that atoms of lambda- and ladder-type three level system placed in a pencil-like cylinder…

High Energy Physics - Phenomenology · Physics 2008-05-15 M. Yoshimura , C. Ohae , A. Fukumi , K. Nakajima , I. Nakano , H. Nanjo , N. Sasao

Electromagnetic showers from high-energy electron beams interacting with a target are a promising path to creating pair plasmas in the laboratory. Here, we solve analytically the kinetic equations describing this process. Two regimes are…

Plasma Physics · Physics 2025-11-11 M. Pouyez , G. Nicotera , M. Galbiati , T. Grismayer , L. Lancia , C. Riconda , M. Grech

We study production of photons via the non-equilibrium relaxation of a Disoriented Chiral Condensate with the chiral order parameter having a large initial amplitude along the \pi^0 direction. Assuming the validity of the low energy…

High Energy Physics - Phenomenology · Physics 2011-04-15 D. Boyanovsky , H. J. de Vega , R. Holman , S. Prem Kumar

The new approach is developed for study of electron-positron pair production by a photon in oriented single crystal. It permits indivisible consideration of both coherent and incoherent mechanisms of pair creation and includes the action of…

High Energy Physics - Phenomenology · Physics 2009-11-11 V. N. Baier , V. M. Katkov

This paper reports the first demonstration of the generation and distribution of entangled photon pairs in the 1.5-um band using spontaneous four-wave mixing in a cooled fiber. Noise photons induced by spontaneous Raman scattering were…

Quantum Physics · Physics 2009-11-11 Hiroki Takesue

We propose a new method for generating photon pairs from coherent light using polarization-dependent two-photon absorption. We study the photon statistics of two orthogonally polarized modes by solving a master equation, and show that when…

Quantum Physics · Physics 2009-11-10 T. Nakanishi , K. Sugiyama , M. Kitano

We investigate generation of nonclassical photon states via conditional measurement process in a two mode coupled waveguide. Interaction of the fields takes place in a waveguide beamsplitter due to the overlap between normal modes supported…

Quantum Physics · Physics 2025-04-14 R. Chakrabarti , S. V. Iyengar , B. V. Jenisha

Interfacing a single photon with another quantum system is a key capability in modern quantum information science. It allows quantum states of matter, such as spin states of atoms, atomic ensembles or solids, to be prepared and manipulated…

We present a detailed study of the generation of photon pairs by spontaneous four-wave mixing in a structure composed of two linearly uncoupled resonators, where energy can be transferred from one resonator to another only through a…

Quantum Physics · Physics 2023-01-23 Luca Zatti , J. E. Sipe , Marco Liscidini

Realistic linear quantum information processing necessitates the ability to synchronously generate entangled photon pairs either at the same or at distant locations. Here, we report the experimental realization of synchronized generation of…

Quantum Physics · Physics 2009-11-11 Tao Yang , Qiang Zhang , Teng-Yun Chen , Shan Lu , Juan Yin , Jian-Wei Pan , Zhi-Yi Wei , Jing-Rong Tian , Jie Zhang

We develop a semiclassical method for the determination of the nonlinear dynamics of dissipative quantum optical systems in the limit of large number of photons N, based on the 1/N-expansion and the quantum-classical correspondence. The…

chao-dyn · Physics 2009-10-31 Kirill N. Alekseev , Natasha V. Alekseeva , Jan Perina

The present work theoretically investigates the probability of generation of entangled electron-photon pair in high-energy Compton scattering of unpolarized electrons and photons due to scattering-channel-exchange mechanism. The study…

Quantum Physics · Physics 2021-06-15 Basudev Nag Chowdhury , Sanatan Chattopadhyay

We demonstrate, theoretically and experimentally, that statistical mixtures of the vacuum state |0> and the single-photon Fock state |1> are nonclassical according to the Vogel criterion (W. Vogel, Phys. Rev. Lett. 84, 1849 (2000)),…

Quantum Physics · Physics 2009-11-07 A. I. Lvovsky , J. H. Shapiro

We study the collective spontaneous emission of three identical two-level atoms initially prepared in the excited states by measuring Glauber's third-order photon correlation function. Assuming two atoms at sub-wavelength distance from each…

Quantum Physics · Physics 2022-04-06 Manuel Bojer , Lukas Götzendörfer , Romain Bachelard , Joachim von Zanthier

We study analytically the photon generation from vacuum due to the Dynamical Casimir effect in a cavity with a two-level atom, prepared initially in an arbitrary pure state. Performing small unitary transformations we obtain closed…

Quantum Physics · Physics 2012-01-19 A. V. Dodonov , V. V. Dodonov

In this paper, correlation dynamics for two two-level atoms distributed in two isolated thermal cavities are studied, where the atomic state is initially prepared in a maximum entangled zero-and-two-excitation superposition state. We use…

Quantum Physics · Physics 2018-12-14 Rong-Can Yang , Lin Xin , Heng Ji , Hong-Yu Liu

Nonclassicality cannot be a single-observable property since the statistics of any quantum observable is compatible with classical physics. We develop a general procedure to reveal nonclassical behavior from the joint measurement of…

Quantum Physics · Physics 2016-05-04 Alfredo Luis

Thermalization of isolated quantum systems is an intriguing phenomenon at the forefront of contemporary physics. In this work, we demonstrate that nonlinear multimode optical platforms can be harnessed to induce effective quantum…

We propose using spontaneous Raman scattering from an optically driven Bose-Einstein condensate as a source of atom-photon pairs whose internal states are maximally entangled. Generating entanglement between a particle which is easily…

Quantum Physics · Physics 2009-11-06 M. G. Moore , P. Meystre
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