Derivative coupling enables genuine entanglement harvesting in causal communication
arXiv:2406.14637 · doi:10.1103/PhysRevD.110.105016
Abstract
We show that particle detectors coupled to a massless quantum field through its derivative can genuinely harvest entanglement form the field even when they are in causal contact in flat spacetime. This is particularly relevant since the derivative coupling model captures some interesting experimentally realizable systems and since the harvested entanglement peaks at full light contact.
7 Pages, 2 Figures, 1 Appendix. RevTeX 4.2
References in corpus (24)
- A computable measure of entanglement
- On the volume of the set of mixed entangled states
- Ultrastrong coupling of a single artificial atom to an electromagnetic continuum in the nonperturbative regime
- Entanglement from the vacuum
- Violating Bell's inequalities in the vacuum
- Harvesting correlations from the quantum vacuum
- Entanglement harvesting from the electromagnetic vacuum with hydrogenlike atoms
- Nonequilibrium and nonperturbative dynamics of ultrastrong coupling in open lines
- Causality issues of particle detector models in QFT and Quantum Optics
- Stochastic Theory of Accelerated Detectors in a Quantum Field
- Quantum delocalization, gauge and quantum optics: The light-matter interaction in relativistic quantum information
- Information transmission without energy exchange
- Harvesting correlations in Schwarzschild and collapsing shell spacetimes
- Onset and decay of the 1+1 Hawking-Unruh effect: what the derivative-coupling detector saw
- Quantum signalling in cavity QED
- Particle detectors and the zero mode of a quantum field
- Motion of a mirror under infinitely fluctuating quantum vacuum stress
- Quantum fields during black hole formation: How good an approximation is the Unruh state?
- Circular motion analogue Unruh effect in a thermal bath: Robbing from the rich and giving to the poor
- Lensing of Vacuum Entanglement near Schwarzschild Black Holes
- Finite sizes and smooth cutoffs in superconducting circuits
- Causality and signalling in non-compact detector-field interactions
- Tunable Coupler for Mediating Interactions between a Two-Level System and a Waveguide from a Decoupled State to the Ultra-Strong Coupling Regime
- Duality between amplitude and derivative coupled particle detectors in the limit of large energy gaps