2012/12/31 by David Edward Bruschi, Antony R. Lee, Ivette Fuentes · 6 citations
Computer Science · Physics and Astronomy · #Computer science #Detector #Optics #Physics #Quantum #Quantum Electrodynamics and Casimir Effect #Quantum Information and Cryptography #Quantum Mechanics and Applications #Quantum mechanics #Theoretical physics #gr-qc #quant-ph
paper · pdf · doi:10.1088/1751-8113/46/16/165303
published as J. Phys. A: Math. Theor. 46 165303 (2013) · 13 pages, 1 figure, updated to published version . I. Fuentes previously published as I. Fuentes-Guridi and I. Fuentes-Schuller
arxiv created 2013/04/06 · openalex publication_date 2013/04/09 · arxiv updated 2014/04/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
Abstract. The techniques employed to solve the interaction of a detector and a quantum field commonly require perturbative methods. We introduce mathematical techniques to solve the time evolution of an arbitrary number of detectors interacting with a quantum field moving in space-time while using non-perturbative methods. Our techniques apply to harmonic oscillator detectors and can be generalised to treat detectors modelled by quantum fields. Since the interaction Hamiltonian we introduce is quadratic in creation and annihilation operators, we are able to draw from continuous variable techniques commonly employed in quantum optics. PACS numbers: 03.67.-a, 04.62.+v, 42.50.Xa, 42.50.Dv 1.