Results 51 to 60 of about 113,864 (320)
Microarcsecond instability of the celestial reference frame [PDF]
, 1998 The fluctuation of the angular positions of reference extragalactic radio and optical sources under the influence of the irregular gravitational field of visible Galactic stars is considered.
Kalinina, T. A. +3 more
core +3 more sources
Deduction of Lorentz Transformations from Classical Thermodynamics
Entropy, 2015 The Lorentz transformations are obtained by assuming that the laws of classical thermodynamics are invariant under changes of inertial reference frames.
Angela M. Ares de Parga +2 more
doaj +1 more source
Implications of an absolute simultaneity theory for cosmology and universe acceleration. [PDF]
PLoS 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
Quantum entanglement of electromagnetic field in non-inertial reference frames [PDF]
Journal of Physics A: Mathematical and Theoretical, 2007 Recently relativistic quantum information has received considerable attention due to its theoretical importance and practical application. Especially, quantum entanglement in non-inertial reference frames has been studied for scalar and Dirac fields. As a further step along this line, we here shall investigate quantum entanglement of electromagnetic ...
Weigang Qiu +3 more
openaire +3 more sources
Unitary representations of the Galilean line group: Quantum mechanical principle of equivalence
, 2011 We present a formalism of Galilean quantum mechanics in non-inertial reference frames and discuss its implications for the equivalence principle. This extension of quantum mechanics rests on the Galilean line group, the semidirect product of the real ...
A.E. McCoy +31 more
core +1 more source
Teleparallel Theories of Gravity: Illuminating a Fully Invariant Approach [PDF]
, 2019 Teleparallel gravity and its popular generalization $f(T)$ gravity can be formulated as fully invariant (under both coordinate transformations and local Lorentz transformations) theories of gravity.
Boehmer, C. G. +4 more
core +2 more sources
About ideal relative motions of rigid heavy body [PDF]
INCAS Bulletin, 2017 Consider an origin which is fixed at the Earth’s surface, and a rectangular celestial coordinates axes with this origin. The gravity acceleration is the approximate sum of the centrifugal acceleration of the origin relatively to the Earth’s center and ...
Nicolae MARCOV
doaj +1 more source
Frames of reference in spaces with affine connections and metrics
, 1999 A generalized definition of a frame of reference in spaces with affine connections and metrics is proposed based on the set of the following differential-geometric objects: (a) a non-null (non-isotropic) vector field, (b) the orthogonal to the vector
Fiziev P +35 more
core +2 more sources
Toward inertial reference frames with the SIM observatory [PDF]
Proceedings of the International Astronomical Union, 2009 AbstractThe SIM Lite Observatory is expected to provide a global astrometric reference frame surpassing the 1-μas accuracy threshold in some spherical harmonics. A range of time-varying physical distortions of the reference frame will become observable as large-scale perturbations of the proper motion field.
openaire +4 more sources
Sensors, 2022 To solve the problem of high-precision and fast initial alignment for the Strapdown Inertial Navigation System (SINS) under both dynamic and static conditions, the high-precision attitude measured by the celestial navigation system (CNS) is used as the ...
Jun Tang +3 more
doaj +1 more source