Results 11 to 20 of about 592,324 (293)
Influence of refractive index matching on the photon diffuse reflectance [PDF]
, 2002 Photon migration in a randomly inhomogeneous, highly scattering and absorbing semi-infinitemediumwith a plane boundary is considered by aMonte Carlo (MC) technique. The employed MC technique combines the statistical weight scheme and real photon paths
Churmakov, D. Y. +2 more
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Photon acceleration in vacuum [PDF]
, 2006 A new process associated with the nonlinear optical properties of the electromagnetic vacuum, as predicted by quantum electrodynamics, is described. This can be called photon acceleration in vacuum, and corresponds to the frequency shift that takes place
Mendonça, J.T. +3 more
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Dark matter and dark energy denote the gravitation of the expanding universe
Frontiers in Physics, 2022 We reason that it is the gravitation of all ordinary matter, extending from the dense distant past to the sparse present, rather than dark matter, that shows up in galaxy rotation and velocity dispersion.
Arto Annila, Mårten Wikström
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On the question of the radius of elementary particles [PDF]
E3S Web of Conferences, 2023 This article belongs to the field of theoretical physics, specifically the study of elementary particles. We discuss the parameters of elementary particles, their interactions with gravitational potential and magnetic fields, stability with respect to ...
Safonova Nina
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Photon-photon interaction in a photon gas [PDF]
Europhysics Letters (EPL), 2000 Using the effective Lagrangian for the low energy photon-photon interaction the lowest order photon self energy at finite temperature and in non-equilibrium is calculated within the real time formalism. The Debye mass, the dispersion relation, the dielectric tensor, and the velocity of light following from the photon self energy are discussed.
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Single photon source characterization with a superconducting single photon detector [PDF]
, 2005 Superconducting single photon detectors (SSPD) based on nanopatterned niobium nitride wires offer single photon counting at fast rates, low jitter, and low dark counts, from visible wavelengths well into the infrared.
Mirin, R.P. +6 more
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Photon-Assisted Transport Through a Quantum Dot Side-Coupled to Majorana Bound States
Frontiers in Physics, 2020 Transmission function of a system composing of a quantum dot (QD) subjected to a photon field and side-coupled to a topological superconductor nanowire hosting a pair of Majorana bound states (MBSs) is calculated by using the non-equilibrium Green's ...
Feng Chi +8 more
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PHOTON-PHOTON INTERACTIONS [PDF]
Nuclear Physics A, 1981 Abstract A brief summary of the present status of photon-photon interactions is presented. Stress is placed on the use of two-photon collisions to test present ideas on the quark constituents of hadrons and on the theory of strong interactions.
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Photon–photon scattering: a tutorial [PDF]
Canadian Journal of Physics, 2012 Long-established results for low-energy photon–photon scattering, γγ → γγ, have recently been questioned. We analyze that claim and demonstrate that it is inconsistent with experience. We demonstrate that the mistake originates from an erroneous manipulation of divergent integrals and discuss the connection with another recent claim about the Higgs ...
Liang, Yi, Czarnecki, Andrzej
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Possible Simple Structures of the Universe to Include General Relativity Effects [PDF]
INCAS Bulletin, 2017 The general relativity describes the universe properties, the gravity playing a fundamental role. One uses a metric tensor in a Riemann space, g , which should be in agreement with a mass (or energy) tensor in order to satisfy the Einstein equation of
Corneliu BERBENTE, Sorin BERBENTE
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