Results 71 to 80 of about 852 (180)

Recursive Relations for the S‐matrix of Liouville Theory

open access: yesFortschritte der Physik, Volume 73, Issue 11, November 2025.
Abstract The relation between the vertex operators of the in and out fields in Liouville theory is analyzed. This is used to derive equations for the S‐matrix, from which a recursive relation for the normal symbol of the S‐matrix for discrete center‐of‐mass momenta is obtained.
George Jorjadze   +2 more
wiley   +1 more source

The Hall Effects of Vortex Light in Optical Materials

open access: yesAdvanced Photonics Research, Volume 6, Issue 10, October 2025.
This article models optical materials as curved spacetime to investigate light propagation, finding that the deflection angle for light with spin σ and intrinsic orbital angular momentum ℓ follows ϑ ∝ 2σ + ℓ$\vartheta \propto 2 \text{&sgr; } + ℓ$.
Wei‐Si Qiu   +3 more
wiley   +1 more source

Criterion for the thermal radiation spectrum in classical physics

open access: yesJournal of Physics Communications
Two criteria for the spectra of relativistic waves are proposed. Zero-point radiation provides the identity representation of the conformal group in Minkowski spacetime.
Timothy H Boyer
doaj   +1 more source

Scattering of quantum particles in global de Sitter spacetime I: The formalism

open access: yesNuclear Physics B
We develop a formalism for computing the scattering amplitudes in maximally symmetric de Sitter spacetime with compact spatial dimensions. We describe quantum states by using the representation theory of de Sitter symmetry group and link the Hilbert ...
Tomasz R. Taylor, Bin Zhu
doaj   +1 more source

Generalized Lagrange Structure of Deformed Minkowski Spacetime

open access: yesNatural Science, 2014
We discuss the generalized Lagrange structure of a deformed Minkowski space (DMS), M? , namely a (four-dimensional) generalization of the (local) space-time based on an energy-dependent "deformation" of the usual Minkowski geometry. In M? , local Lorentz invariance is naturally violated, due to the energy dependence of the deformed metric.
Roberto Mignani   +2 more
openaire   +5 more sources

The Minkowski quantum vacuum does not gravitate

open access: yesNuclear Physics B, 2019
We show that a non-zero renormalised value of the zero-point energy in λϕ4-theory over Minkowski spacetime is in tension with the scalar-field equation at two-loop order in perturbation theory.
Viacheslav A. Emelyanov
doaj   +1 more source

An Alexandrov theorem in Minkowski spacetime

open access: yesAsian Journal of Mathematics, 2019
In this paper, we generalize a theorem {à} la Alexandrov of Wang, Wang and Zhang [WWZ] for closed codimension-two spacelike submanifolds in the Minkowski spacetime for an adapted CMC condition .
Hijazi, Oussama   +2 more
openaire   +4 more sources

Parameter Estimation of Wormholes beyond the Heisenberg Limit

open access: yesUniverse, 2018
We propose to exploit the quantum properties of nonlinear media to estimate the parameters of massless wormholes. The spacetime curvature produces a change in length with respect to Minkowski spacetime that can be estimated in principle with an ...
Carlos Sanchidrián-Vaca, Carlos Sabín
doaj   +1 more source

Simultaneity in Minkowski Spacetime, as Parallax

open access: yesQeios, 2023
Minkowski spacetime parallax uses the shifting plane of simultaneity (POS), of an accelerating inertial reference frame (IRF), while referencing a distant signal (such as a pulsar) with regularly recurring intervals. The distance of the signal's source can be derived from the Lorentz transfer equations and the rate at which the intervals are changing ...
openaire   +1 more source

Emerging internal symmetries from effective spacetimes

open access: yesPhysics Letters B, 2017
Can global internal and spacetime symmetries be connected without supersymmetry? To answer this question, we investigate Minkowski spacetimes with d space-like extra dimensions and point out under which general conditions external symmetries induce ...
Manfred Lindner, Sebastian Ohmer
doaj   +1 more source

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