Results 31 to 40 of about 2,160,501 (327)

A new perspective on spacetime 4D rotations and the SO(4) transformation group

open access: yesResults in Physics, 2019
In quantum field theory, every conservation law is enforced by adequate symmetries. The Lorentz group, which represents two continuous symmetries: rotations in 3D Euclidean space and Lorentz boosts, generates conservation of the angular momentum tensor ...
Mikołaj Myszkowski
doaj   +1 more source

Geometrical Interpretation of Space Contraction in Two-dimensional Lorentz Transformation

open access: yesBibechana
This paper points out that the transformation equations for the spatial and temporal coordinates between two frames of reference in the existing generally accepted version of the Lorentz transformation are deficient, since transformation equations are ...
Chandra Bahadur Khadka
doaj   +3 more sources

Factorization of the Lorentz Transformations

open access: yesUkrainian Journal of Physics, 2023
The article shows how the factorization of an arbitrary Lorentz transformation is performed. That is, the representation of an arbitrary Lorentz transformation as a sequence of a spatial rotation and a boost or a boost and a spatial rotation. Relations are obtained that determine the required boosts and turns.
Karplyuk, K.S.   +2 more
openaire   +3 more sources

Implications of an absolute simultaneity theory for cosmology and universe acceleration. [PDF]

open access: yesPLoS ONE, 2014
An alternate Lorentz transformation, Absolute Lorentz Transformation (ALT), has similar kinematics to special relativity yet maintains absolute simultaneity in the context of a preferred reference frame.
Edward T Kipreos
doaj   +1 more source

Black hole entropy in the Chern–Simons-like theories of gravity and Lorentz-diffeomorphism Noether charge

open access: yesNuclear Physics B, 2016
In the first order formalism of gravity theories, there are some theories which are not Lorentz-diffeomorphism covariant. In the framework of such theories we cannot apply the method of conserved charge calculation used in Lorentz-diffeomorphism ...
M.R. Setare, H. Adami
doaj   +1 more source

Geometrical approach to the proton spin decomposition [PDF]

open access: yes, 2013
We discuss in detail and from the geometrical point of view the issues of gauge invariance and Lorentz covariance raised by the approach proposed recently by Chen et al. to the proton spin decomposition. We show that the gauge invariance of this approach
Cédric Lorcé   +14 more
core   +3 more sources

Lorentz quantum mechanics

open access: yesNew Journal of Physics, 2018
We present a theoretical framework for the dynamics of bosonic Bogoliubov quasiparticles. We call it Lorentz quantum mechanics because the dynamics is a continuous complex Lorentz transformation in complex Minkowski space.
Qi Zhang, Biao Wu
doaj   +1 more source

Potential relativistic dispersion in material medium

open access: yesResults in Physics, 2016
Lorentz space-time transformation has been applied to the phase factor of a plane electromagnetic wave in linear material medium. The derivation shows in the limiting case for v = c, the phase velocity converges to its monochromatic value implying no ...
Md Rejwan Ali, Mostafa Sadoqi
doaj   +1 more source

Supertranslation-invariant dressed Lorentz charges

open access: yesJournal of High Energy Physics, 2022
We present an explicit formula for Lorentz boosts and rotations that commute with BMS supertranslations in asymptotically flat spacetimes. Key to the construction is the use of infrared regularizations and of a unitary transformation that makes ...
Reza Javadinezhad   +2 more
doaj   +1 more source

Lorentz Transformation and Light-Like Noncommutative SYM [PDF]

open access: yes, 2000
We show that combining the spatial noncommutative SYM limit and Lorentz transformation, one can obtain a well-behaved light-like noncommutative SYM limit. The light-like noncommutative SYM is unitary.
Cai, Rong-Gen, Ohta, Nobuyoshi
core   +2 more sources

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