Search results for "field theory in curved space"

showing 2 items of 32 documents

Resonance interaction energy between two accelerated identical atoms in a coaccelerated frame and the Unruh effect

2016

We investigate the resonance interaction energy between two uniformly accelerated identical atoms, interacting with the scalar field or the electromagnetic field in the vacuum state, in the reference frame coaccelerating with the atoms. We assume that one atom is excited and the other in the ground state, and that they are prepared in their correlated symmetric or antisymmetric state. Using perturbation theory, we separate, at the second order in the atom-field coupling, the contributions of vacuum fluctuations and radiation reaction field to the energy shift of the interacting system. We show that only the radiation reaction term contributes to the resonance interaction between the two ato…

PhysicsQuantum PhysicsField (physics)010308 nuclear & particles physicsVacuum stateFOS: Physical sciencesGeneral Relativity and Quantum Cosmology (gr-qc)Interaction energy01 natural sciencesResonance (particle physics)General Relativity and Quantum CosmologyLamb shiftresonance interactionUnruh effectExcited state0103 physical sciencesUnruh effectquantum field theory in curved spaceAtomic physicsQuantum Physics (quant-ph)010306 general physicsGround statePhysical Review D
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Reexamination of the Power Spectrum in De Sitter Inflation

2008

4 pages, 1 table.-- PACS nrs.: 98.80.Cq, 04.62.+v.-- PMID: 18999735 [PubMed].

PhysicsQuantum field theory in curved spacetime010308 nuclear & particles physicsVacuum stateGeneral Physics and AstronomySpectral densityAstrophysics::Cosmology and Extragalactic AstrophysicsInflaton01 natural sciences[PACS] Quantum fields in curved spacetimeMassless particleGeneral Relativity and Quantum CosmologyAmplitude[PACS] Particle-theory and field-theory models of the early UniverseDe Sitter universeQuantum mechanicsQuantum electrodynamics0103 physical sciences010306 general physicsQuantum fluctuationPhysical Review Letters
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