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相关论文: Quantum Theory of Generation of Coherent X-Ray in …

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Electrons colliding with spatially fixed ions in strong laser fields are investigated by solving the time-dependent Schr\"odinger equation. Considering first simple one-dimensional model systems, the mechanisms and energy spectra of fast…

原子物理 · 物理学 2015-10-28 S. Bauch , M. Bonitz

The optical phase of the driving field in the process of high harmonic generation and the coherence properties of the harmonics are fundamental concepts in attosecond physics. Here, we consider to drive the process by incoherent classical…

量子物理 · 物理学 2024-09-16 Philipp Stammer

The microscopic quantum theory of nonlinear stimulated scattering of chiral particles in doped $AB$ stacked bilayer graphene on Coulomb field of charged impurities in the presence of strong coherent electromagnetic radiation is presented.…

介观与纳米尺度物理 · 物理学 2019-07-26 A. G. Ghazaryan , Kh. V. Sedrakian

The problem of undulator radiation from a bunch of charged particles, taking into account a medium polarization, is considered. In a dispersive medium, at a zero angle, in addition to hard photons, soft photons are also generated. If the…

加速器物理 · 物理学 2024-12-17 Hayk L. Gevorgyan , Koryun L. Gevorgyan , Anahit H. Shamamian , Lekdar A. Gevorgian

The X-ray free-electron laser oscillator (XFELO) has recently been reconsidered a promising candidate for producing high-brightness, fully coherent pulses in the hard X-ray regime. This letter proposes a gain-guided XFELO scheme, avoiding…

加速器物理 · 物理学 2018-08-29 Kai Li , Haixiao Deng

A study of fundamental geometrical interactions shows that the Dirac electron can be represented as a conformal wave. A Riemannian space is used, having coordinates that transform locally as spinors. The wave function becomes a gradient.…

数学物理 · 物理学 2007-05-23 Daniel C. Galehouse

The density of electron-hole pairs produced in a graphene sample immersed in a homogeneous time-dependent electrical field is evaluated. Because low energy charge carriers in graphene are described by relativistic quantum mechanics, the…

介观与纳米尺度物理 · 物理学 2017-04-24 F. Fillion-Gourdeau , P. Blain , D. Gagnon , C. Lefebvre , S. MacLean

We present a new concept of nonlinear dynamics of incoherent superstrong radiation in plasmas. Recently we have disclosed a novel mechanism of the establishment of equilibrium between a photon and a dense photon bunch through the exchange…

天体物理学 · 物理学 2010-06-04 Nodar L. Tsintsadze , Levan N. Tsintsadze

We propose a feasible scheme for generation of strongly non-Gaussian states using the cross-Kerr nonlinearity. The resultant states are highly non-classical states of electromagnetic field and exhibit negativity of their Wigner function,…

量子物理 · 物理学 2008-03-04 Tomas Tyc , Natalia Korolkova

The present paper is the continuation of the paper "Nonlinear field theory I". In the paper it is shown that a fully correspondence between the quantum and the nonlinear electromagnetic forms of the Dirac electron theory exists, so that…

量子物理 · 物理学 2007-05-23 Alexander G. Kyriakos

A classical general relativistic theory possessing magnetic currents, as well electric ones and admitting massive photons was built up. As the geometric basis serves a space with Weylian non-metricity and torsion. The theory is coordinate…

广义相对论与量子宇宙学 · 物理学 2007-12-27 Mark Israelit

We describe the quantum theory of massless (p,0)-forms that satisfy a suitable holomorphic generalization of the free Maxwell equations on Kaehler spaces. These equations arise by first-quantizing a spinning particle with a U(1)-extended…

高能物理 - 理论 · 物理学 2015-05-28 Fiorenzo Bastianelli , Roberto Bonezzi

The interaction of electrons with strong laser fields is usually treated with semiclassical theory, where the laser is represented by an external field. There are analytic solutions for the free electron wave functions, which incorporate…

量子物理 · 物理学 2024-07-09 Sándor Varró

In this paper, we derive the dynamical algebra of a particle confined in an infinite spherical well by using the $f$-deformed oscillator approach. We consider an exciton with definite angular momentum in a wide quantum dot interacting with…

量子物理 · 物理学 2011-12-13 M. Bagheri Harouni , R. Roknizadeh , M. H. Naderi

In \cite{2} it was shown that Einstein's special theory of relativity and Maxwell's field theory have mathematically equivalent dual versions. The dual versions arise from an identity relating observer time to proper time as a contact…

综合物理 · 物理学 2022-08-24 Tepper L. Gill , Gonzalo Ares de Parga , Trey Morris , Mamadou Wade

High-order harmonic generation (HHG) is combined with resonant x-ray excitation of a core electron into the transient valence vacancy that is created in the course of the HHG process. To describe this setting, I develop a…

原子物理 · 物理学 2015-10-15 Christian Buth

Compact coherent x-ray sources have been the focus of extensive research efforts over the past decades. As a result, several novel schemes like optical and nano-undulators for generating x-ray emissions in "table-top" setups are proposed,…

加速器物理 · 物理学 2021-12-01 Arya Fallahi , Niels Kuster , Lukas Novotny

A Lorentz-covariant system of wave equations is formulated for a quantum-mechanical three-body system in one space dimension, comprised of one photon and two identical massive spin one-half Dirac particles, which can be thought of as two…

数学物理 · 物理学 2024-11-13 Lawrence Frolov , Samuel E. Leigh , A. Shadi Tahvildar-Zadeh

Imaging technologies such as dynamic viewpoint generation are engineered for incoherent radiation using the traditional light field, and for coherent radiation using electromagnetic field theory. We present a model of coherent image…

光学 · 物理学 2015-05-13 Anthony Accardi , Gregory Wornell

A modified quantum kinetic equation which takes account of the noninertial features of rotating frame is proposed. The vector and axial-vector field components of the Wigner function for chiral fluids are worked out in a semiclassical…

高能物理 - 理论 · 物理学 2018-10-24 Omer F. Dayi , Eda Kilincarslan