scholarly journals CPT violation does not lead to violation of Lorentz invariance and vice versa

2011 ◽  
Vol 699 (3) ◽  
pp. 177-180 ◽  
Author(s):  
Masud Chaichian ◽  
Alexander D. Dolgov ◽  
Victor A. Novikov ◽  
Anca Tureanu
Keyword(s):  
Lorentz Invariance ◽  
Cpt Violation ◽  
Violation Of Lorentz Invariance

scholarly journals Constraints on Lorentz invariance and CPT violation using optical photometry and polarimetry of active galaxies BL Lacertae and S5 B0716+714

2019 ◽  
Vol 99 (3) ◽  
Author(s):  
Andrew S. Friedman ◽  
David Leon ◽  
Kevin D. Crowley ◽  
Delwin Johnson ◽  
Grant Teply ◽  
...  
Keyword(s):  
Lorentz Invariance ◽  
Active Galaxies ◽  
Cpt Violation ◽  
Optical Photometry ◽  
Bl Lacertae

scholarly journals Modifications to Plane Gravitational Waves from Minimal Lorentz Violation

Symmetry ◽  
2019 ◽  
Vol 11 (10) ◽  
pp. 1318 ◽  
Author(s):  
Rui Xu
Keyword(s):  
General Relativity ◽  
Gravitational Wave ◽  
Gravitational Waves ◽  
Lorentz Invariance ◽  
Lorentz Violation ◽  
First Order ◽  
Test Particles ◽  
Violation Of Lorentz Invariance ◽  
Plane Gravitational Waves ◽  
Wave Modes

General Relativity predicts two modes for plane gravitational waves. When a tiny violation of Lorentz invariance occurs, the two gravitational wave modes are modified. We use perturbation theory to study the detailed form of the modifications to the two gravitational wave modes from the minimal Lorentz-violation coupling. The perturbation solution for the metric fluctuation up to the first order in Lorentz violation is discussed. Then, we investigate the motions of test particles under the influence of the plane gravitational waves with Lorentz violation. First-order deviations from the usual motions are found.

Violation of Lorentz invariance in type II Green-Schwarz superstrings in curved D=10, N=2 superspace

1989 ◽  
Vol 226 (3-4) ◽  
pp. 237-243 ◽  
Author(s):  
S. James Gates ◽  
Parthasarathi Majumdar ◽  
B. Radak ◽  
S. Vashakidze
Keyword(s):  
Lorentz Invariance ◽  
Type Ii ◽  
Violation Of Lorentz Invariance

scholarly journals Search for Violation of Lorentz Invariance in Top Quark Pair Production and Decay

2012 ◽  
Vol 108 (26) ◽  
Author(s):  
V. M. Abazov ◽  
B. Abbott ◽  
B. S. Acharya ◽  
M. Adams ◽  
T. Adams ◽  
...  
Keyword(s):  
Pair Production ◽  
Top Quark ◽  
Lorentz Invariance ◽  
Violation Of Lorentz Invariance

scholarly journals PERSPECTIVES ON QUANTUM GRAVITY PHENOMENOLOGY

2005 ◽  
Vol 14 (12) ◽  
pp. 2069-2094 ◽  
Author(s):  
DANIEL SUDARSKY
Keyword(s):  
Quantum Gravity ◽  
Lorentz Invariance ◽  
Quantum Gravity Phenomenology ◽  
Violation Of Lorentz Invariance

The idea that quantum gravity manifestations are associated with a violation of Lorentz invariance is very strongly bounded and faces serious theoretical challenges. Other related ideas seem to be drowning in interpretational quagmires. This leads us to consider alternative lines of thought for such a phenomenological search. We discuss the underlying viewpoints and briefly mention their possible connections with other current theoretical ideas.

scholarly journals Searches for Violation of CPT Symmetry and Lorentz Invariance with Astrophysical Neutrinos

Universe ◽  
2022 ◽  
Vol 8 (1) ◽  
pp. 42
Author(s):  
Celio A. Moura ◽  
Fernando Rossi-Torres
Keyword(s):  
Gamma Ray ◽  
Lorentz Invariance ◽  
New Physics ◽  
Time Signal ◽  
Cpt Symmetry ◽  
Symmetry Violation ◽  
Oscillation Phase ◽  
Astrophysical Neutrinos ◽  
Charge Parity ◽  
Violation Of Lorentz Invariance

Neutrinos are a powerful tool for searching physics beyond the standard model of elementary particles. In this review, we present the status of the research on charge-parity-time (CPT) symmetry and Lorentz invariance violations using neutrinos emitted from the collapse of stars such as supernovae and other astrophysical environments, such as gamma-ray bursts. Particularly, supernova neutrino fluxes may provide precious information because all neutrino and antineutrino flavors are emitted during a burst of tens of seconds. Models of quantum gravity may allow the violation of Lorentz invariance and possibly of CPT symmetry. Violation of Lorentz invariance may cause a modification of the dispersion relation and, therefore, in the neutrino group velocity as well in the neutrino wave packet. These changes can affect the arrival time signal registered in astrophysical neutrino detectors. Direction or time-dependent oscillation probabilities and anisotropy of the neutrino velocity are manifestations of the same kind of new physics. CPT violation, on the other hand, may be responsible for different oscillation patterns for neutrino and antineutrino and unconventional energy dependency of the oscillation phase or of the mixing angles. Future perspectives for possible CPT and Lorentz violating systems are also presented.

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