Results 61 to 70 of about 158,930 (327)
Lorentz Harmonics, Squeeze Harmonics, and their Physical Applications [PDF]
Symmetry 3:16-36,2011, 2011 Among the symmetries in physics, the rotation symmetry is most familiar to us. It is known that the spherical harmonics serve useful purposes when the world is rotated. Squeeze transformations are also becoming more prominent in physics, particularly in optical sciences and in high-energy physics.
arxiv +1 more source
, 2011 This paper describes a particularly didactic and transparent derivation of basic properties of the Lorentz group. The generators for rotations and boosts along an arbitrary direction, as well as their commutation relations, are written as functions of the unit vectors that define the axis of rotation or the direction of the boost (an approach that can ...
openaire +2 more sources
Advanced Materials Interfaces, EarlyView.A novel and efficient method is explored to synthesize 1D single‐crystal sub‐stoichiometric WnO3n‐2 (n = 25) nanowire bundles. The approach utilizes selective low‐energy He+ ion irradiation (27 eV) on Mo‐Ni doped WOx surface, achieving efficient catalyst‐free self‐organized growth of high aspect ratio nanowires at the temperature of 700 °C.
Maryna Bilokur +3 more
wiley +1 more source
Relativity in cosmologically preferred frame and the UHECR paradox
Bibechana, 2014 The Greisen-Zatsepin-Kuzmin (GZK) cutoff (5 × 1019eV) of special relativity in the observed ultra high energy cosmic rays (UHECR) spectrum is one of the most puzzling paradoxes in physics.
Saroj Nepal
doaj +3 more sources
A new perspective on spacetime 4D rotations and the SO(4) transformation group
Results 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
A faster than "World fastest derivation of the Lorentz transformation" [PDF]
arXiv, 2006 We show that a derivation of the Lorentz-Einstein transformation based on length contraction or on time dilation is faster then "World's fastest derivation of the Lorentz transformation"
arxiv
Advanced Materials Interfaces, EarlyView.The synthesis route for the fabrication of nanostructured titania thin films focuses on water‐based solutions, abundant, nontoxic materials, and a highly scalable deposition technique. Using beta‐lactoglobulin enables tunable titania thin film templating and allows for different domain sizes, porosities, and morphologies.
Linus F. Huber +6 more
wiley +1 more source
NMR in Biomedicine, Volume 36, Issue 1, January 2023., 2023 Through the proposed Look‐Locker–based T1 mapping sequence, temperature maps of homogeneous doped‐water solutions at 0.1 T could be obtained in 10 min. The use of a variable averaging scheme enhanced T1 estimation accuracy, leading to a temperature precision of 3.0 ± 1.1°C and an accuracy of 1.5 ± 1.0°C.
Marco Fiorito +4 more
wiley +1 more source
The covariance of chiral fermions theory
Journal of High Energy Physics, 2019 The quasiclassical theory of massless chiral fermions is considered. The effective action is derived using time-dependent variational principle which provides a clear interpretation of relevant canonical variables.
K. Andrzejewski +5 more
doaj +1 more source
An alternative to relativistic transformation of special relativity based on the first principles [PDF]
arXiv, 2008 A new relativistic transformation in the velocity space (here named the differential Lorentz transformation) is formulated solely from the principle of relativity and the invariance of the speed of light. The differential Lorentz transformation is via transforming physical quantities, instead of space-time coordinates, to make laws of nature form ...
arxiv