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Einstein's relativity theory appears to be very accurate, but at times equally puzzling. On the one hand, electromagnetic radiation must have zero rest mass in order to propagate at the speed of light, but on the other hand, since it…

History and Philosophy of Physics · Physics 2015-08-27 M. B. van der Mark , G. W. 't Hooft

The special theory of relativity does not predict the existence of photons (quanta of electromagnetic radiation). However, it is demonstrated here that it follows from the special theory of relativity that if photons do exist---and we know…

Quantum Physics · Physics 2012-08-31 I. Mayer

The Stefan-Boltzmann constant arose from photon densities inside a cavity, but inside matter photon mode densities are material specific. Photon speeds are governed by the mode they occupy, so mode densities can be expressed in terms of…

Optics · Physics 2021-07-21 G. B. Smith , A. R. Gentle , M. D. Arnold

Photons in blackbody radiation have non-zero interactions due to their couplings to virtual electron-positron pairs in the vacuum. For temperatures much less than the electron mass $m$ these effects can be described by an effective theory…

High Energy Physics - Phenomenology · Physics 2007-05-23 Finn Ravndal

The coupled system of Boltzman equations for the interacting system of electrons, positrons and photons in high external electric, E, and arbitrary magnetic, H, fields is solved. The consideration is made under the conditions of arbitrary…

Quantum Physics · Physics 2007-05-23 T. M. Gassym

We demonstrate that the broadband divergence of the photonic density of states in hyperbolic metamaterials leads to giant increase in radiative heat transfer, beyond the limit set by the Stefan-Boltzmann law. The resulting radiative thermal…

Optics · Physics 2016-11-17 Evgenii E. Narimanov , Igor I. Smolyaninov

We study thermal radiation outside equilibrium. The situation considered consists of two bodies emitting photons at two different temperatures. We show that the system evolves to a stationary state characterized by an energy current which…

Statistical Mechanics · Physics 2017-02-01 Agustin Perez-Madrid , J. Miguel Rubi , Luciano C. Lapas

We posit a second massless photon, uncoupled to known forms of matter but undergoing Lorentz non-invariant velocity mixing with ordinary photons. Our speculation within a speculation suffers from the sin of implausibility but enjoys the…

Astrophysics · Physics 2009-10-30 Sheldon L. Glashow

We consider the problem of propagation of photons in the quantum theory of non-relativistic matter coupled to electromagnetic radiation, which is, presently, the only consistent quantum theory of matter and radiation. Assuming that the…

Mathematical Physics · Physics 2011-10-19 Jean-Francois Bony , Jérémy Faupin , Israel Michael Sigal

Motivated by the recently derived new form of generalized uncertainty principle we obtain the corresponding dispersion relation which is now modified. This modification can be interpreted as a possible mechanism that makes particles more…

General Relativity and Quantum Cosmology · Physics 2013-08-21 Bibhas Ranjan Majhi , Elias C. Vagenas

In the wave equation obeyed by electromagnetic fields in curved spacetime there are Riemann and Ricci curvature coupling terms to the photon polarisation, which result in a polarisation dependent deviation of the photon trajectories from…

General Relativity and Quantum Cosmology · Physics 2009-10-31 Subhendra Mohanty , A. R. Prasanna

The thermodynamical properties of the photon-plasma system had been studied using statistical physics approach. Photons develop an effective mass in the medium thus -- as a result of the finite chemical potential -- a photon Bose-Einstein…

Statistical Mechanics · Physics 2020-04-22 Peter Mati

The mixing of the photon with a hypothetical sterile paraphotonic state would have consequences on the cosmological propagation of photons. The absence of distortions in the optical spectrum of distant Type Ia supernov\ae allows to extend…

Astrophysics · Physics 2009-11-07 A. De Angelis , R. Pain

The effects of a nonzero photon rest mass can be incorporated into electromagnetism in a simple way using the Proca equations. In this vein, two interesting implications regarding the possible existence of a massive photon in nature, i.e.,…

High Energy Physics - Theory · Physics 2016-08-14 Antonio Accioly , José Helayël-Neto , Eslley Scatena

Photon is the fundamental quantum of electromagnetic fields, whose mass, $m_{\gamma}$, should be strictly zero in Maxwell's theory. But not all theories adopt this hypothesis. If the rest mass of the photon is not zero, there will be an…

High Energy Astrophysical Phenomena · Physics 2021-09-01 Huimei Wang , Xueli Miao , Lijing Shao

The properties of light in the presence of electromagnetic and gravitational fields are compared. Once one takes account of the fact that clock rates vary with distance from a massive object, it is argued that in an absolute sense light…

General Physics · Physics 2009-04-22 Robert J. Buenker

Attempts to explain the refraction of light in dispersive media in terms of a photon or "corpuscular" model have heretofore been unable to account for the observed decrease in the speed of light as it passes from air into a region of higher…

General Physics · Physics 2007-05-23 Robert J. Buenker , Pedro L. Muino

The probability of a photon to move faster than light, under the Einstein Quantum dynamics is shown to vanish for large times. The proof is based on using propagation estimates on multiscaled energy intervals, to control the singular symbol…

Mathematical Physics · Physics 2011-03-17 Avy Soffer

Radiance is widely regarded as the principal quantity in light transport theory. Yet, the concept of radiance in use today has remained mostly unchanged since Lambert's work in the 18th century. His formulation of the measurement of light…

General Physics · Physics 2012-05-22 Christian Lessig , Eugene Fiume , Mathieu Desbrun

The massive electrodynamics is applied to the Dirac equation to find the generalized Volkov solution with massive photon field. The resulting equation is the Riccati equation which cannot be solved in general. We use the approximative…

High Energy Physics - Phenomenology · Physics 2007-05-23 Miroslav Pardy
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