Stability, Causality, and Lorentz and CPT Violation

Abstract

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 massive fermion reveal that no difficulty arises for low energies if the parameters controlling the breaking are small, but for high energies either energy positivity or microcausality is violated in some observer frame. However, this can be avoided if the lagrangian is the sub-Planck limit of a nonlocal theory with spontaneous Lorentz and CPT violation. Our analysis supports the stability and causality of the Lorentz- and CPT-violating standard-model extension that would emerge at low energies from spontaneous breaking in a realistic string theory.

20 pages, accepted for publication in Physical Review D

Cited by in corpus (432)

• Gravity, Lorentz Violation, and the Standard Model
• Modern tests of Lorentz invariance
• Noncommutative Field Theory and Lorentz Violation
• Signals for Lorentz Violation in Electrodynamics
• Quantum Spacetime Phenomenology
• Electrodynamics with Lorentz-violating operators of arbitrary dimension
• Signals for Lorentz Violation in Post-Newtonian Gravity
• CPT Violation Implies Violation of Lorentz Invariance
• Cosmological Constraints on Lorentz Violation in Electrodynamics
• Spontaneous Lorentz Violation, Nambu-Goldstone Modes, and Gravity
• Lorentz violation at high energy: concepts, phenomena and astrophysical constraints
• Matter-gravity couplings and Lorentz violation
• Lorentz and CPT Violation in Neutrinos
• Neutrinos with Lorentz-violating operators of arbitrary dimension
• Fermions with Lorentz-violating operators of arbitrary dimension
• Lorentz symmetry breaking as a quantum field theory regulator
• Riemann-Finsler geometry and Lorentz-violating kinematics
• An exact Schwarzschild-like solution in a bumblebee gravity model
• One-Loop Renormalization of Lorentz-Violating Electrodynamics
• Threshold effects and Planck scale Lorentz violation: combined constraints from high energy astrophysics
• Clock-Comparison Tests of Lorentz and CPT Symmetry in Space
• Quantum Uncertainty in Doubly Special Relativity
• Spontaneous Lorentz and Diffeomorphism Violation, Massive Modes, and Gravity
• Prospects for Large Relativity Violations in Matter-Gravity Couplings
• What Do We Know About Lorentz Invariance?
• Spacetime-varying couplings and Lorentz violation
• Cross Sections and Lorentz Violation
• Constraining the New Aether: Gravitational Cherenkov Radiation
• Vacuum Cherenkov radiation
• Causality and CPT violation from an Abelian Chern-Simons-like term
• Lorentz-Violating Electrostatics and Magnetostatics
• Searching for CPT Violation with Cosmic Microwave Background Data from WMAP and BOOMERANG
• Lorentz violation with an antisymmetric tensor
• Probing Lorentz and CPT violation with space-based experiments
• Black holes with a cosmological constant in bumblebee gravity
• Lorentz and CPT Violation in the Neutrino Sector
• New two-sided bound on the isotropic Lorentz-violating parameter of modified Maxwell theory
• The Cherenkov effect in Lorentz-violating vacua
• Lorentz Violation and Short-Baseline Neutrino Experiments
• Vacuum Cerenkov Radiation in Lorentz-Violating Theories Without CPT Violation
• Constraints and Stability in Vector Theories with Spontaneous Lorentz Violation
• Threshold analyses and Lorentz violation
• Renormalization of Lorentz violating theories
• Bound on Lorentz- and CPT-Violating Boost Effects for the Neutron
• Overview of the SME: Implications and Phenomenology of Lorentz Violation
• Global three-parameter model for neutrino oscillations using Lorentz violation
• CPT, T, and Lorentz Violation in Neutral-Meson Oscillations
• GUP Modified Hawking Radiation in Bumblebee Gravity
• Lorentz and CPT violations from Chern-Simons modifications of QED
• Strong gravitational lensing and shadow constraint from M87* of slowly rotating Kerr-like black hole
• Bipartite Riemann-Finsler geometry and Lorentz violation
• Vacuum Photon Splitting in Lorentz-Violating Quantum Electrodynamics
• Constraints on Lorentz violation from gravitational Cherenkov radiation
• Lorentz and CPT tests with hydrogen, antihydrogen, and related systems
• Dirac theory within the Standard-Model Extension
• Cosmological acceleration, varying couplings, and Lorentz breaking
• New Observational Bounds to Quantum Gravity Signals
• Gravity from spontaneous Lorentz violation
• Magnetic Moment Generation from non-minimal couplings in a scenario with Lorentz-Symmetry Violation
• Perturbative Lorentz and CPT violation for neutrino and antineutrino oscillations
• Backgrounds in gravitational effective field theory
• Supersymmetry and Lorentz Violation
• Quantum gravity and spin 1/2 particles effective dynamics
• Lorentz-violating corrections on the hydrogen spectrum induced by a non-minimal coupling
• Lorentz-violating spinor electrodynamics and Penning traps
• Observational Limits on Quantum Geometry Effects
• Gauge Invariance and the Pauli-Villars Regulator in Lorentz- and CPT-Violating Electrodynamics
• Photon decay in a CPT-violating extension of quantum electrodynamics
• Consistency of isotropic modified Maxwell theory: Microcausality and unitarity
• Inflation and dark energy from three-forms
• Gauge field theories with Lorentz-violating operators of arbitrary dimension
• Classical kinematics for Lorentz violation
• Aharonov-Bohm-Casher Problem with a nonminimal Lorentz-violating coupling
• Analysis of the consistency of parity-odd nonbirefringent modified Maxwell theory
• Ultrahigh-energy cosmic-ray bounds on nonbirefringent modified-Maxwell theory
• A new CPT-even and Lorentz-Violating nonminimal coupling in the Dirac equation
• Riemann-Finsler Geometry and Lorentz-Violating Scalar Fields
• Limits on isotropic Lorentz violation in QED from collider physics
• Spontaneous Lorentz Violation and Nonpolynomial Interactions
• Redefining Spinors in Lorentz-Violating QED
• Explicit versus Spontaneous Diffeomorphism Breaking in Gravity
• Failure of Gauge Invariance in the Nonperturbative Formulation of Massless Lorentz-Violating QED
• Tests of Lorentz symmetry in the gravitational sector
• QED with minimal and nonminimal couplings: on the quantum generation of Lorentz violating terms in the pure photon sector
• Bare and Induced Lorentz and CPT Invariance Violations in QED
• Noncommutativity in Field Space and Lorentz Invariance Violation
• Limits on Lorentz Violation from the Highest Energy Cosmic Rays
• Massive photons and Lorentz violation
• Einstein-Hilbert Graviton modes modified by the Lorentz-violating bumblebee Field
• Cerenkov Radiation in a Lorentz-Violating and Birefringent Vacuum
• Lorentz and CPT Violation in the Higgs Sector
• Bounding Isotropic Lorentz Violation Using Synchrotron Losses at LEP
• Instabilities in the Aether
• Quantization of the Myers-Pospelov model: the photon sector interacting with standard fermions as a perturbation of QED
• Limits on Lorentz Violation from Synchrotron and Inverse Compton Sources
• Causality and stability for Lorentz-CPT violating electrodynamics with dimension-5 operators
• Testing Lorentz invariance by use of vacuum and matter filled cavity resonators
• Laboratory tests of Lorentz and CPT symmetry with muons
• Three-form cosmology
• Generalized bumblebee models and Lorentz-violating electrodynamics
• Classical-physics applications for Finsler $b$ space
• On the perturbative generation of the higher-derivative Lorentz-breaking terms
• Defect Structures in Lorentz and CPT Violating Scenarios
• On the consistency of Lorentz invariance violation in QED induced by fermions in constant axial-vector background
• Synchrotron and Inverse Compton Constraints on Lorentz Violations for Electrons
• Time-delay and Doppler tests of the Lorentz symmetry of gravity
• Probing Lorentz violation with Doppler-shift experiments
• One-Loop Renormalization of the Electroweak Sector with Lorentz Violation
• Dimensional Reduction of a Lorentz and CPT-violating Maxwell-Chern-Simons Model
• Compton Scattering in the Presence of Lorentz and CPT Violation
• Eliminating the CPT-Odd f Coefficient from the Lorentz-Violating Standard Model Extension
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• Supersymmetric Extension of the Lorentz and CPT-Violating Maxwell-Chern-Simons Model
• Searching for photon-sector Lorentz violation using gravitational-wave detectors
• Particle-accelerator constraints on isotropic modifications of the speed of light
• Finsler-like structures from Lorentz-breaking classical particles
• CPT Violation Does Not Lead to Violation of Lorentz Invariance and Vice Versa
• Limits on light-speed anisotropies from Compton scattering of high-energy electrons
• Lorentz violation in Dirac and Weyl semimetals
• CPT and Lorentz violation effects in hydrogen-like atoms
• Lorentz violation in the gravity sector: The t puzzle
• Lorentz violation bounds on Bhabha scattering
• Finite Duration and Energy Effects in Lorentz-Violating Vacuum Cerenkov Radiation
• Quantum Theory of Noncommutative Fields
• Gauge propagator and physical consistency of the CPT-even part of the Standard Model Extension
• Unitarity in higher-order Lorentz-invariance violating QED
• Matter-gravity scattering in the presence of spontaneous Lorentz violation
• Synchrotron Radiation in Lorentz-violating Electrodynamics: the Myers-Pospelov model
• Asymptotic states and renormalization in Lorentz-violating quantum field theory
• Spontaneous Breaking of Lorentz Invariance
• An Analogy of the Quantum Hall Condutivity in a Lorentz-symmetry Violation Setup
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• Quantization and stability of bumblebee electrodynamics
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• Lorentz and CPT Tests with Clock-Comparison Experiments
• Radiative generation of the CPT-even gauge term of the SME from a dimension-five nonminimal coupling term
• Local effects of the quantum vacuum in Lorentz-violating electrodynamics
• Spontaneous Violation of Lorentz Invariance and Ultra-High Energy Cosmic Rays
• Light-bending tests of Lorentz invariance
• Classical Solutions in a Lorentz-violating Maxwell-Chern-Simons Electrodynamics
• Effects of a CPT-even and Lorentz-violating nonminimal coupling on the electron-positron scattering
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• Casimir effect within D=3+1 Maxwell-Chern-Simons electrodynamics
• Classical Lagrangians for Momentum Dependent Lorentz Violation
• Large-scale non-locality in "doubly special relativity" with an energy-dependent speed of light
• Information-Entropic for Travelling Solitons in Lorentz and CPT Breaking Systems
• Radiative corrections in bumblebee electrodynamics
• Testing local Lorentz invariance with short-range gravity
• U(1) Noncommutative Gauge Fields and Magnetogenesis
• On the renormalization of CPT/Lorentz violating QED in curved space
• Influence of Lorentz- and CPT-violating terms on the Dirac equation
• Charged spherically symmetric and slowly rotating charged black hole solutions in bumblebee gravity
• Quantum field theoretic properties of Lorentz-violating operators of nonrenormalizable dimension in the fermion sector
• Spacetime symmetries of the Lorentz-violating Maxwell-Chern-Simons model
• Non-local on-shell field redefinition for the SME
• Background Enhancement of CPT Reach at an Asymmetric Phi Factory
• Metric-affine bumblebee gravity: classical aspects
• Lorentz-symmetry test at Planck-scale suppression with nucleons in a spin-polarized ${}^{133}$Cs cold atom clock
• Gravity with explicit spacetime symmetry breaking and the Standard-Model Extension
• Testing symmetries in effective models of higher derivative field theories
• Laboratory Bounds on Electron Lorentz Violation
• Aspects of Quantum Corrections in a Lorentz-violating Extension of the Abelian Higgs Model
• Inflation in Motion: Unitarity Constraints in Effective Field Theories with Broken Lorentz Symmetry
• Vacuum Cherenkov radiation for Lorentz-violating fermions
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• Lorentz and CPT Violation in Top-Quark Production and Decay
• Constraining CPT-even and Lorentz-violating nonminimal couplings with the electron magnetic and electric dipole moments
• Lorentz-violating scenarios in a thermal reservoir
• On the equivalence between bumblebee models and electrodynamics in a non-linear gauge
• Statistical Mechanics and Lorentz Violation
• Traveling solitons in Lorentz-violating systems
• Spontaneous Lorentz symmetry breaking and one-loop effective action in the metric-affine bumblebee gravity
• Improved Constraints on Isotropic Shift and Anisotropies of the Speed of Light using Rotating Cryogenic Sapphire Oscillators
• Quantum field theory based on birefringent modified Maxwell theory
• Pseudo-Finslerian spacetimes and multi-refringence
• Eikonal approximation, Finsler structures, and implications for Lorentz-violating photons in weak gravitational fields
• Einstein-Cartan formulation of Chern-Simons Lorentz-violating Gravity
• Chern-Simons like term generation in an extended model of QED under external conditions
• Anomalous Casimir effect in axion electrodynamics
• Thermal aspects of interacting quantum gases in Lorentz-violating scenarios
• On the exact Foldy-Wouthuysen transformation for a Dirac spinor in torsion and other CPT and Lorentz violating backgrounds
• Maxwell electrodynamics modified by CPT-even and Lorentz-violating dimension-6 higher-derivative terms
• Lorentz Violation in Extra Dimensions
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• Generation of geometrical phases and persistent spin currents in 1-dimensional rings by Lorentz-violating terms
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• Velocity in Lorentz-Violating Fermion Theories
• Hamiltonian formulation of an effective modified gravity with nondynamical background fields
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• Searches for beyond-Riemann gravity
• Gupta-Bleuler Photon Quantization in the SME
• Matter-antimatter asymmetry without departure from thermal equilibrium
• Hint of CPT Violation in Short-Baseline Electron Neutrino Disappearance
• Lorentz violation and deep inelastic scattering
• Generation of higher derivatives operators and electromagnetic wave propagation in a Lorentz-violation scenario
• Noether identities in gravity theories with nondynamical backgrounds and explicit spacetime symmetry breaking
• Low-energy Moller scattering in a Maxwell-Chern-Simons Lorentz-violating planar model
• Bounds on Spin-Dependent Lorentz Violation From Inverse Compton Observations
• Can a CPT Violating Ether Solve ALL Electron (Anti)Neutrino Puzzles?
• There is No Ambiguity in the Radiatively Induced Gravitational Chern-Simons Term
• Classical kinematics for isotropic, minimal Lorentz-violating fermion operators
• Spontaneous Breaking of Lorentz Symmetry with an antisymmetric tensor
• Foldy-Wouthuysen transformation for non-Hermitian Hamiltonians
• Classical solutions for the Carroll-Field-Jackiw-Proca electrodynamics
• Polymer Bose--Einstein Condensates
• Bianchi type I cosmology with a Kalb-Ramond background field
• Lorentz and CPT Tests in Matter and Antimatter
• The structure of radiatively induced Lorentz and CPT violation in QED at finite temperature
• VSBL Electron Neutrino Disappearance
• Bumblebee gravity and particle motion in Snyder noncommutative spacetime structures
• Extended Hamiltonian Formalism and Lorentz-Violating Lagrangians
• Bose-Einstein Condensates as a Probe for Lorentz Violation
• Lorentz-violating modification of Dirac theory based on spin-nondegenerate operators
• Determination of CP and CPT violation parameters in the neutral kaon system using the Bell-Steinberger relation and data from the KLOE experiment
• Maxwell electrodynamics modified by a CPT-odd dimension-five higher-derivative term
• Lorentz violation in a uniform newtonian gravitational field
• Chiral Anomaly Beyond Lorentz Invariance
• Dynamical Lorentz and CPT symmetry breaking in a 4D four-fermion model
• Uncharged compactlike and fractional Lorentz-violating BPS vortices in the CPT-even sector of the standard model extension
• Inertial frames without the relativity principle
• Sigma-Model Aether
• Limits on Neutron Lorentz Violation from Pulsar Timing
• Lorentz and CPT tests with charge-to-mass ratio comparisons in Penning traps
• The μ\to eγand τ\to μγdecays with the inclusion of Lorentz and CPT violating effects
• Lorentz Violation and Sagnac Gyroscopes
• Lorentz violating kinematics: Threshold theorems
• Fermion observables for Lorentz violation
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• Covariant Quantization of CPT-violating Photons
• Searching for CPT Violation with Neutral-Meson Oscillations
• Gauge invariant electromagnetic properties of fermions induced by CPT violation in the Standard Model Extension
• Quantum Field Theory in a Multi-Metric Background
• Kink-antikink collision in a Lorentz-violating ${\varphi }^4$ model
• Gravity Theories with Background Fields and Spacetime Symmetry Breaking
• Cherenkov Radiation with Massive, CPT-violating Photons
• Lorentz Violation and the Yukawa Potential
• CPT/Lorentz Invariance Violation and Neutrino Oscillation
• Consequences of Neutrino Lorentz Violation For Leptonic Meson Decays
• The Källén-Lehmann representation for Lorentz-violating field theory
• Matter-Antimatter Asymmetry Generated by Loop Quantum Gravity
• Thermodynamics of a quantum ring modified by Lorentz violation
• Spacetime Symmetry Breaking and Einstein-Maxwell Theory
• Vortices, Infrared effects and Lorentz Invariance Violation
• A new type of nonsingular black-hole solution in general relativity
• Extended QED with CPT violation : clarifying some controversies
• Bounds on Lorentz and CPT Violation from the Earth-Ionosphere Cavity
• Gupta--Bleuler's quantization of the anisotropic parity-even and CPT-even electrodynamics of standard model extension
• Exact modifications on a vacuum spacetime due to a gradient bumblebee field at its vacuum expectation value
• Gravity with Explicit Diffeomorphism Breaking
• Classical Lagrangians for the nonminimal Standard-Model Extension at higher orders in Lorentz violation
• Constraining CPT-odd nonminimal interactions in the Electroweak sector
• Cosmological birefringent constraints on light
• Modified Bosonic Gas Trapped in a Generic 3-dim Power Law Potential
• Laboratory bounds on Lorentz symmetry violation in low energy neutrino physics
• Tests of Lorentz Violation in Atomic and Optical Physics
• Self-dual Maxwell-Chern-Simons solitons from a Lorentz-violating model
• From classical Lagrangians to Hamilton operators in the Standard-Model Extension
• Lorentz violation in three-family neutrino oscillation
• Implications of $\text{SU}(2{)}_L$ gauge invariance for constraints on Lorentz violation
• Bipartite-Finsler symmetries
• Superfield Realizations of Lorentz and CPT Violation
• Momentum Routing Invariance in Extended QED: Assuring Gauge Invariance Beyond Tree Level
• Limiting Lorentz Violation from Neutron--Antineutron Oscillation
• Remarks on the renormalization properties of Lorentz and CPT violating quantum electrodynamics
• Question of Lorentz invariance in muon decay
• Planck Scale Physics and Bogoliubov Spaces in a Bose-Einstein Condensate
• Ideal-Modified Bosonic Gas Trapped in an Arbitrary Three Dimensional Power-Law Potential
• Non-relativistic electron-electron interaction in a Maxwell-Chern-Simons-Proca model endowed with a timelike Lorentz-violating background
• Dynamical Lorentz symmetry breaking in a 4D massless four-fermion model
• Lorentz-violating effects in the Bose-Einstein condensation of an ideal bosonic gas
• Effects of CPT and Lorentz Invariance Violation on Pulsar Kicks
• Testing Lorentz- and CPT-invariance with ultracold neutrons
• Lorentz violation and higher-derivative gravity
• Cavity tests of parity-odd Lorentz violations in electrodynamics
• Gluonic Lorentz violation and chiral perturbation theory
• Exact black hole solutions in gravity with a background Kalb-Ramond field
• Relaxing Lorentz invariance in general perturbative anomalies
• Electron-electron interaction in a MCS model with a purely spacelike Lorentz-violating background
• Probing Lorentz Invariance Violation with Atmospheric Neutrinos at INO-ICAL
• Lorentz Violation and Faddeev-Popov Ghosts
• Particle and Antiparticle sectors in DSR1 and kappa-Minkowski space-time
• Lorentz Violation and Alpha-Decay
• External sources in a minimal and nonminimal CPT-odd Lorentz violating Maxwell electrodynamics
• The Lorentz-violating real scalar field at thermal equilibrium
• Strange Quark Stars and Condensate Dark Stars in Bumblebee Gravity
• One-loop correction to the photon velocity in Lorentz-violating QED
• The Lorentz and CPT violating effects on the Z\to l^+ l^- decay
• On the Lorentz Transformations of Momentum and Energy
• Spontaneous Lorentz Violation via QED with Non-Exact Gauge Invariance
• Coupled scalar fields Oscillons and Breathers in some Lorentz Violating Scenarios
• Seiberg-Witten map Invariant Scatterings
• Chiral bosonization for non-commutative fields
• Lorentz Violating Julia-Toulouse Mechanism
• D-Oscillons in the Standard Model-Extension
• Charged lepton electric dipole moment enhancement in the Lorentz violated extension of the standard model
• Classical Lagrangians for the nonminimal spin-nondegenerate Standard-Model Extension at higher orders in Lorentz violation
• Stars and quark stars in bumblebee gravity
• Testing CPT- and Lorentz-odd electrodynamics with waveguides
• Noncommutative field gas driven inflation
• Aspects of finite electrodynamics in D=3 dimensions
• Investigating Lorentz Violation with the long baseline experiment P2O
• Nambu-Goldstone Modes in Gravitational Theories with Spontaneous Lorentz Breaking
• Planck-Scale Traces from the Interference Pattern of two Bose-Einstein Condensates
• Nonminimal planar electrodynamics modified by higher-derivative terms
• Dynamical Evolution of Gravitational Leptogenesis
• Standard Model with Partial Gauge Invariance
• Gauge field spectrum in massive Yang-Mills theory with Lorentz violation
• One-loop renormalization of Lorentz/CPT violating scalar field theory in curved space-time
• Eikonal equation of the Lorentz-violating Maxwell theory
• One-loop structure of the photon propagator in the Standard Model Extension
• CPT and Lorentz-invariance violation
• Spontaneous symmetry breaking in models with second-class constraints
• Gauge anomalies in Lorentz-violating QED
• Neutron-antineutron transition as a test-bed for dynamical CPT violations
• Spontaneous and Explicit Spacetime Symmetry Breaking in Einstein-Cartan Theory with Background Fields
• Cosmic-ray fermion decay through tau-antitau emission with Lorentz violation
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• Lorentz violation, Two times physics and Strings
• Vortices in U(1) Noncommutative Gauge Fields
• Lepton-pair Cerenkov radiation emitted by tachyonic neutrinos: Lorentz-covariant approach and IceCube data
• Nonpolynomial Normal Modes of the Renormalization Group in the Presence of a Constant Vector Potential Background
• On the Lorentz symmetry of the noncommutative chiral bosons
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• Bumblebee gravity: spherically-symmetric solutions away from the potential minimum
• Factoring the Dispersion Relation in the Presence of Lorentz Violation
• Ultrarelativistic Bose-Einstein Gas on Lorentz Symmetry Violation
• Bounding Lorentz Violation at Particle Colliders By Tracking the Motion of Charged Particles
• Yang-Mills Instantons with Lorentz Violation
• Vacuum Polarization Effects in the Lorentz and PCT Violating Electrodynamics
• Lorentz Violation in Finsler Geometry
• Perturbative unitarity and higher-order Lorentz symmetry breaking
• Testing black holes with cosmological constant in Einstein-bumblebee gravity through the black hole shadow using EHT data and deflection angle
• Discriminating between Lorentz violation and non-standard interactions using core-passing atmospheric neutrinos at INO-ICAL
• Particle dynamics and optical appearance of charged spherically symmetric black holes in bumblebee gravity
• Constraining dimension-six nonminimal Lorentz-violating electron-nucleon interactions with EDM physics
• Short-range forces due to Lorentz-symmetry violation
• Physical interpretation of large Lorentz violation via Weyl semimetals
• Noncommutative field with constant background fields and neutral fermion
• Squeezing the Parameter Space for Lorentz Violation in the Neutrino Sector by Additional Decay Channels
• Emergent gauge theories and supersymmetry: a QED primer
• Quantum instability of gauge theories on $\kappa$-Minkowski space
• Electrodynamics Modified by Some Dimension-five Lorentz Violating Interactions: Radiative Corrections
• On the anomalies in Lorentz-breaking theories
• CPT-violating effects in muon decay
• Planck Scale Induced Speed of Sound in a Trapped Bose-Einstein Condensate
• Microcausality and Energy-Positivity in all frames imply Lorentz Invariance of dispersion laws
• Fermion and meson mass generation in non-Hermitian Nambu--Jona-Lasinio models
• No one-loop gauge anomalies for a Lorentz-violating quantum electrodynamics: Evaluation of the three-photon vertex
• UV/IR Mixing and Black Hole Thermodynamics
• Influence of Lorentz-violating terms on a two-level system
• Reality and causality in quantum gravity modified electrodynamics
• The Impact of Lorentz Violation on the Klein Tunneling Effect
• Infinitesimally Nonlocal Lorentz Violation
• On the duality in CPT-even Lorentz-breaking theories
• Formal Developments for Lorentz-Violating Dirac Fermions and Neutrinos
• Lorentz Breaking and SU(2)_L x U(1)_Y Gauge Invariance for Neutrino Decays
• Muon anomalous magnetic moment due to the brane-stretching effect
• Quantum Theory of Tensionless Noncommutative p-Branes
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• Energy Positivity, Non-Renormalization, and Holomorphy in Lorentz-Violating Supersymmetric Theories
• Photon and photino as Nambu-Goldstone zero modes in an emergent SUSY QED
• Lorentz-violating nonminimal coupling contributions in mesonic hydrogen atoms and generation of photon higher-order derivative terms
• Emergent physics on Mach's principle and the rotating vacuum
• Testing of CP, CPT and causality violation with the light propagation in vacuum in presence of the uniform electric and magnetic fields
• The CPT-violating effects on neutrons' gravitational bound state
• Gauge Fields as Goldstone Bosons Triggered by Spontaneously Broken Supersymmetry
• Aspects of General Relativity: Pseudo-Finsler extensions, Quasi-normal frequencies and Multiplication of tensorial distributions
• A dimension five Lorentz-violating nonminimal coupling for mesons in the KLZ model
• Stellar matter with pseudoscalar condensates
• Lorentz invariant ensembles of vector backgrounds
• Non-abelian vector backgrounds with restored Lorentz invariance
• Nucleosynthesis constraint on Lorentz invariance violation in the neutrino sector
• Dealing with T and CPT violations in mixing as well as direct and indirect CP violations for neutral mesons decaying to two vectors
• Small-Scale Structure of Spacetime: Bounds and Conjectures
• Quantization of Space-like States in Lorentz-Violating Theories
• Lorentz Symmetry and Ultra-High-Energy Cosmic Rays
• Induction of the Lorentz-violating effective actions in quantum electrodynamics
• Euler-Heisenberg Lagrangian under an axial gauge field
• Superluminal Neutrinos in the Minimal Standard Model Extension
• Particle-antiparticle asymmetry from magnetogenesis through the Landau mechanism
• Explaining LSND and MiniBooNE using altered neutrino dispersion relations
• K-essence Explains a Lorentz Violation Experiment
• Could the photon dispersion relation be non-linear ?
• Atomic and optical tests of Lorentz symmetry
• Lorentz and CPT Tests using Penning Traps
• Extended Nambu Models: their relation to gauge theories
• Very special relativity as particle in a gauge field and two-time physics
• CPT and Lorentz violation as signatures for Planck-scale physics
• Modified Lorentz transformations in deformed special relativity
• Vacuum polarization in Yang-Mills theories with Lorentz violation
• CPT-Odd effects on the electromagnetic properties of charged leptons in the Standard Model Extension
• Testing Lorentz symmetry with atoms and Light
• Derivative four-fermion model, effective action and bumblebee generation
• Tree-level unitarity, causality and higher-order Lorentz and CPT violation
• Single-Particle Quantum Mechanics of the Free Klein-Gordon Equation with Lorentz Violation
• Interpretation of neutrino oscillations based on new physics in the infrared
• UHECR bounds on Lorentz violation in the photon sector
• Superalgebras for the Penning Trap
• Non-Hermitian Interactions Between Harmonic Oscillators, with Applications to Stable, Lorentz-Violating QED
• Velocity-dependent deformations of the energy spectrum of a quantum cavity from Lorentz symmetry violations
• Aspects of Lorentz-Poincaré-symmetry violating physics in a supersymmetric scenario
• Thin accretion disk around Schwarzschild-like black hole in bumblebee gravity
• LIV effects on the quantum stochastic motion in an acoustic FRW-geometry
• Principle action for particles faster than light
• Non-commutative Field Theory with Twistor-like Coordinates
• The analogy of the Lorentz-violating fermion-gravity and fermion photon couplings
• Constraining EDM and MDM lepton dimension five interactions in the electroweak sector
• Probing Relativity using Space-Based Experiments
• CPT-symmetry studies with antihydrogen
• A novel nonlocal spin-1/2 theory: classical and quantum aspects
• Limit on Quark-Antiquark Mass Difference from the Neutral Kaon System
• The Photon Dispersion as an Indicator for New Physics ?
• Phenomenological description of quantum gravity inspired modified classical electrodynamics
• CPT, Lorentz invariance and anomalous clash of symmetries
• Spacetime-symmetry violations: motivations, phenomenology, and tests
• Quantum gravity and spacetime symmetries
• Neutrino Pair Cerenkov Radiation for Tachyonic Neutrinos
• Recent Results on N=2,4 Supersymmetry with Lorentz Symmetry Violating
• Primitively divergent diagrams in $\kappa$-deformed scalar field with quartic self-interaction
• Penning-Trap Searches for Lorentz and CPT Violation
• The Axial Anomaly in Lorentz Violating Theories: Towards the Electromagnetic Response of Weakly Tilted Weyl Semimetals
• One-loop contributions in Lorentz-violating scalar QED with nonminimal coupling
• Lorentz-violating extension of Wigner function formalism and chiral kinetic theory