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

@article{Chaichian2011CPTVD, title={CPT violation does not lead to violation of Lorentz invariance and vice versa}, author={Masud Chaichian and Alexander Dolgov and Victor Novikov and Anca Tureanu}, journal={Physics Letters B}, year={2011}, volume={699}, pages={177-180} }

## 55 Citations

### Lorentz-invariant CPT violation

- Physics
- 2013

A Lorentz-invariant CPT violation, which may be termed long-distance CPT violation in contrast to the familiar short-distance CPT violation, has been recently proposed. This scheme is based on a…

### CPT and Lorentz Invariance: Their Relation and Violation

- Physics
- 2013

The CPT theorem in quantum field theory, its validity, breaking and consequences are reviewed. One can show that for CPT theorem to hold, Lorentz invariance is not always needed. Also one can have…

### Lorentz Symmetry Violation in String-Inspired Effective Modified Gravity Theories

- Physics
- 2022

We discuss situations under which Lorentz symmetry is violated in ef-fective gravitational ﬁeld theories that arise in the low-energy limit of strings. In particular, we discuss spontaneous violation…

### Phenomenological Effects of CPT and Lorentz Invariance Violation in Particle and Astroparticle Physics

- PhysicsSymmetry
- 2020

The state of art for astroparticle physics, quantum field theory, quantum gravity, and neutrino beams are discussed, with some interesting new proposals, both from a theoretical and phenomenological point of view.

### Neutrino oscillations and Lorentz invariance violation in a Finslerian geometrical model

- Physics
- 2018

Neutrino oscillations are one of the first evidences of physics beyond the Standard Model (SM). Since Lorentz invariance is a SM fundamental symmetry, recently also neutrino physics has been explored…

### Neutrino Oscillations and Lorentz Invariance Violation

- PhysicsUniverse
- 2020

This work explores the possibility of resorting to neutrino phenomenology to detect evidence of new physics, caused by the residual signals of the supposed quantum structure of spacetime. In…

### Theory overview of testing fundamental symmetries

- Physics
- 2014

I review first some theoretical motivations for violation of Lorentz and/or CPT Invariance. Although the latter symmetries may be violated in a quantum gravity setting, nevertheless there are…

### Violation of CPT Invariance in the Early Universe and Leptogenesis/Baryogenesis

- Physics
- 2013

In this talk, I review some plausible scenarios entailing violation of CPT symmetry in the early Universe, due to space-time backgrounds which do not respect some of the assumptions for the validity…

### Lorentz breaking and SU(2)L × U(1)Y gauge invariance for neutrinos

- PhysicsInternational Journal of Modern Physics E
- 2019

Conceivable Lorentz-violating effects in the neutrino sector remain a research area of great general interest, as they touch upon the very foundations on which the Standard Model and our general…

## References

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Stability and causality are investigated for quantum field theories incorporating Lorentz and CPT violation. Explicit calculations in the quadratic sector of a general renormalizable lagrangian for a…

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The Standard Model Extension (SME) provides the most general observer-independent field theoretical framework for investigations of Lorentz violation. The SME lagrangian by definition contains all…

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We argue that CPT is in general violated in a non-quantum-mechanical way in the effective low-energy theory derived from noncritical string theory, in which pure states evolve into mixed states in…

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A interacting theory that violates CPT invariance necessarily violates Lorentz invariance, and theories that violate CPT by having different particle and antiparticle masses must be nonlocal.

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In these lectures I review, in as much pedagogical way as possible, various theoretical ideas and motivation for violation of CPT invariance in some models of Quantum Gravity, and discuss the…

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The invariance of the noncommutative gauge theories under C, P, and T transformations is studied and it is shown that the CPT invariance holds for general noncommUTative space-time.

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We develop a perturbative framework with which to discuss departures from exact Lorentz invariance and explore their potentially observable ramifications. Tiny noninvariant terms introduced into the…

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CPT violation has the potential to explain all three existing neutrino anomalies without enlarging the neutrino sector. CPT violation in the Dirac mass terms of the three neutrino flavors preserves…