Faster-than-light signalling in the rotating-wave approximation
arXiv:1905.02235 · doi:10.1103/PhysRevD.100.065021
Abstract
We present new results on the causality violations introduced by the rotating wave approximation commonly used in quantum optics and high-energy physics. We find that the causality violations and faster-than-light signalling induced by the approximation have `fat tails', i.e., they are polynomially decaying with the distance from the light-cone of the emitter. Furthermore, we also show that the fundamental problems with the incompatibility between the approximation and relativity are not cured even in the long interaction time regime (where the approximation is often taken). This renders the approximation unsuitable for any regime where we are concerned about relativistic causality and information transmission via the electromagnetic field.
arXiv comment23 pages (13 pages + 10 pages of Appendices). RevTeX 4.1
References in corpus (14)
- Ultrastrong coupling of a single artificial atom to an electromagnetic continuum in the nonperturbative regime
- Violating Bell's inequalities in the vacuum
- Harvesting correlations from the quantum vacuum
- Entanglement harvesting from the electromagnetic vacuum with hydrogenlike atoms
- Quantum Measurement Information as a key to Energy Release from Local Vacuums
- Causality issues of particle detector models in QFT and Quantum Optics
- Information transmission without energy exchange
- Relativistic Quantum Optics: On the relativistic invariance of the light-matter interaction models
- Violation of the strong Huygen's principle and timelike signals from the early Universe
- Quantum signalling in cavity QED
- Nonperturbative approach to relativistic quantum communication channels
- Degenerate detectors are unable to harvest spacelike entanglement
- Transmitting qubits through relativistic fields
- From the Jaynes-Cummings-Hubbard to the Dicke model
Cited by in corpus (18)
- Quantum delocalization, gauge and quantum optics: The light-matter interaction in relativistic quantum information
- General Relativistic Quantum Optics: Finite-size particle detector models in curved spacetimes
- Transmission of quantum information through quantum fields
- Relativistic causality in particle detector models: Faster-than-light signalling and "Impossible measurements"
- Effective master equations for two accelerated qubits
- Quantum Field Theory based Quantum Information: Measurements and Correlations
- Anti-particle detector models in QFT
- Thermality, causality and the quantum-controlled Unruh-deWitt detector
- What makes a particle detector click
- Duality in the dynamics of Unruh-DeWitt detectors in conformally related spacetimes
- Diagrammatic approach for analytical non-Markovian time-evolution: Fermi's two atom problem and causality in waveguide quantum electrodynamics
- Clock Transitions Versus Bragg Diffraction in Atom-interferometric Dark-matter Detection
- Uniformly accelerated quantum counting detector in Minkowski and Fulling vacuum states
- Locality and entanglement harvesting in covariantly bandlimited scalar fields
- Dimensional reduction of cavities with axial symmetry: A complete analysis of when an optical fiber is approximately one-dimensional
- Gaussian states in quantum field theory: Exact representations of relative phase in superpositions of Gaussian states
- Dimensional Reduction in Quantum Optics
- Fermi two-atom problem: non-perturbative approach via relativistic quantum information and algebraic quantum field theory