Spatially extended Unruh-DeWitt detectors for relativistic quantum information
arXiv:1211.5261 · doi:10.1103/PhysRevD.89.085041
Abstract
Unruh-DeWitt detectors interacting locally with a quantum field are systems under consideration for relativistic quantum information processing. In most works, the detectors are assumed to be point-like and, therefore, couple with the same strength to all modes of the field spectrum. We propose the use of a more realistic detector model where the detector has a finite size conveniently tailored by a spatial profile. We design a spatial profile such that the detector, when inertial, naturally couples to a peaked distribution of Minkowski modes. In the uniformly accelerated case, the detector couples to a peaked distribution of Rindler modes. Such distributions are of special interest in the analysis of entanglement in non-inetial frames. We use our detector model to show the noise detected in the Minkowski vacuum and in single particle states is a function of the detector's acceleration.
Revised for publication, 9 pages (+1 references page), 7 figures
References in corpus (18)
- Quantum computing with trapped ions
- The Unruh effect and its applications
- Strong atom-field coupling for Bose-Einstein condensates in an optical cavity on a chip
- Entangling Power of an Expanding Universe
- Tunable coupling in circuit quantum electrodynamics with a superconducting V-system
- Wavepacket detection with the Unruh-DeWitt model
- A superconducting qubit with Purcell protection and tunable coupling
- Observer dependent entanglement
- Detectors for probing relativistic quantum physics beyond perturbation theory
- Backreaction and Unruh effect: New insights from exact solutions of uniformly accelerated detectors
- Time evolution techniques for detectors in relativistic quantum information
- Particle and anti-particle bosonic entanglement in non-inertial frames
- Fermionic entanglement that survives a black hole
- Static, stationary and inertial Unruh-DeWitt detectors on the BTZ black hole
- Disentanglement of two harmonic oscillators in relativistic motion
- Entanglement of two qubits in a relativistic orbit
- Complete transfer of populations from a single state to a pre-selected superposition of states using Piecewise Adiabatic Passage
- Quantum teleportation between moving detectors
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- Measuring the Casimir-Polder potential with Unruh-DeWitt detector excitations
- Localised Systems in Relativistic Quantum Information
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