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Generally, when imaginary part of an optical potential is non-symmetric the reflectivity, $R(E)$, shows left/right handedness, further if it is not negative-definite the reflection and transmission, $T(E)$, coefficients become anomalous in…

Quantum Physics · Physics 2009-11-10 Zafar Ahmed

In the first order of the fine structer constant, the polarization operator of a photon is investigated in a constant and homogeneous magnetic field at arbitrary photon energies. For weak and strong fields H, compared with the Schwinger…

High Energy Physics - Theory · Physics 2016-10-12 V. M. Katkov

Astrophysical polarization measurements provide some of the strongest constraints on the photon sector of the non-minimal Standard-Model Extension. This paper reviews some recent results obtained by combining optical linear and circular…

High Energy Physics - Phenomenology · Physics 2022-07-12 Fabian Kislat

The photon is modeled as a monochromatic solution of Maxwell's equations confined as a soliton wave by the principle of causality of special relativity. The soliton travels rectilinearly at the speed of light. The solution can represent any…

Quantum Physics · Physics 2015-06-26 Geoffrey Hunter , Marian Kowalski , Camil Alexandrescu

Dynamic processes occurring in solar active regions are dominated by the solar magnetic field. As of now, observations using a solar magnetograph have supplied us with the vector components of a solar photospheric magnetic field. The two…

Solar and Stellar Astrophysics · Physics 2015-06-12 Yu Gao

Ground-state and excited-state properties of vertically coupled double quantum dots are studied by exact diagonalization. Magic-number total angular momenta that minimize the total energy are found to reflect a crossover between electron…

Mesoscale and Nanoscale Physics · Physics 2009-10-31 Hiroshi Imamura , Peter A. Maksym , Hideo Aoki

We consider the charged exciton complexes of an ideal two-dimensional electron-hole system in the limit of strong magnetic fields. A series of charged multiple-exciton states is identified and variational and finite-size exact…

Condensed Matter · Physics 2009-10-28 J. J. Palacios , D. Yoshioka , A. H. MacDonald

Two light pulses propagating with ultra-slow group velocities in a coherently prepared atomic gas exhibit dissipation-free nonlinear coupling of an unprecedented strength. This enables a single-photon pulse to coherently control or…

Quantum Physics · Physics 2009-10-31 M. D. Lukin , A. Imamoglu

In terms of a photon wave function corresponding to the (1, 0)+(0, 1) representation of the Lorentz group, the radiation and Coulomb fields within a source-free region can be described unitedly by a Lorentz-covariant Dirac-like equation. In…

Quantum Physics · Physics 2009-09-26 Zhi-Yong Wang , Cai-Dong Xiong , Qi Qiu

The electron-positron annihilation into two photons is a standard technology in medicine to observe e.g. metabolic processes in human bodies. A new tomograph will provide the possibility to observe not only direct $e^+ e^-$ annihilations…

Quantum Physics · Physics 2017-11-15 B. C. Hiesmayr , P. Moskal

In this work we analytically calculate the time-averaged electromagnetic energy stored inside a nondispersive magnetic isotropic cylinder which is obliquely irradiated by an electromagnetic plane wave. An expression for the…

Optics · Physics 2010-10-15 Tiago Jose Arruda , Alexandre Souto Martinez

We use holographic methods to show that photons emitted by a strongly coupled plasma subject to a magnetic field are linearly polarized regardless of their four-momentum, except when they propagate along the field direction. The…

High Energy Physics - Theory · Physics 2025-11-17 Daniel Ávila , Tonantzin Monroy , Francisco Nettel , Leonardo Patiño

Ultra-high energy (UHE) photons above 10^{18} eV serve as valuable probes of fundamental physics. While typically produced in interactions involving charged particles, they could also originate from exotic sources such as annihilations of…

High Energy Physics - Phenomenology · Physics 2025-07-16 Łukasz Bratek , Joanna Jałocha

Dirac demonstrated that the existence of a single magnetic monopole in the universe could explain the discrete nature of electric charge. Magnetic monopoles naturally arise in most grand unified theories. However, the extensive experimental…

High Energy Physics - Phenomenology · Physics 2025-02-13 Huner Fanchiotti , C. A. García Canal , Vicente Vento

The singularities of the electromagnetic field are derived to include all the point-like multipoles representing an electric charge and current distribution. Firstly derived in the static case, the result is generalized to the dynamic one.…

Classical Physics · Physics 2015-05-14 C. Vrejoiu , R. Zus

The purpose of this paper is to show that the composite photon theory measures up well against the Standard Model's elementary photon theory. This is done by comparing the two theories area by area. Although the predictions of quantum…

General Physics · Physics 2015-03-03 Walton A. Perkins

In the framework of the Stueckelberg-Wheeler-Feynman concept of a ``one-electron Universe'' we consider a worldline implicitly defined by a system of algebraic (precisely, polynomial) equations. Collection of pointlike ``particles'' of two…

General Physics · Physics 2021-04-27 Abdel Challa , Vladimir V. Kassandrov , Nina V. Markova

Recently the spectacular result was derived quantum mechanically that the total angular momentum of photons in light beams with finite lateral extensions can have half-integer quantum numbers. In a circularly polarized Gauss light beam it…

Other Condensed Matter · Physics 2017-03-20 Manfred Fähnle

For paraxial and non-paraxial light, numerous measures of electromagnetic attribute are expressible in terms of photon annihilation and creation. Accordingly, energy, angular momentum and chirality measures acquire a consistent…

Optics · Physics 2018-02-14 Matt M. Coles , David L. Andrews

Principally, there are two forms of coupling energy when particle(photon) is moving around the micro-ring resonator, which is generated by the construction (creation) and the destruction (annihilation) energies that can disturb the centre…

Quantum Physics · Physics 2016-12-20 Wanchai Khunnam , Jalil Ali , Preecha Yupapin
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