Quantum Field Theory Effects in Curved Spacetime  

In General > see [quantum field theory in curved spacetime]; black hole radiation; casimir; Reeh-Schlieder Property.

Vacuum, Particle Creation > s.a. bogoliubov; gravitational thermodynamics; inflation; mirrors; Normal Order; particle effects; vacuum.
* Idea: The vacuum is not stable, and particles can be created (in pairs); One can say that virtual pairs of particles are torn apart by the geodesic deviation; Fields are scattered non-trivially by the geometry, to which one has to add the effects on time-dependent metrics.
* Issue: A reasonably unambiguous definition of vacuum (and therefore, of "particle") seems to exist only for the case of a spacetime with a preferred timelike vector field, e.g., a stationary one; Otherwise, different choices give inequivalent vacua.
@ Reviews: Srinivasan & Padmanabhan gq/98; Sriramkumar & Padmanabhan IJMPD(02)gq/99.
@ Proposals: Nachtmann OAW(67); Ashtekar & Magnon PRS(74); Rumpf & Urbantke AP(78); Panangaden JMP(79); Castagnino in(85), & Sztrajman PRD(88); Bombelli & Wyrozumski CQG(89); Castagnino & Laciana PTP(90), PTP(90); Krtous gq/95; Bel gq/97-in; Fischer & Dray GRG(99)gq/98; Junker & Schrohe AHP(02)mp/01 [abiadatic vacuum]; Nikolic PLB(02)gq/01, GRG(05); Hamilton et al JHEP(04)ht/03 [from Feynman propagators]; Ng gq/05 [intro]; Mahajan & Padmanabhan a0708, a0708 [formalism].
@ Anisotropic spacetimes: Villalba IJTP(97); Suresh IJTP(05); Korunur & Havare gq/05 [photons in Bianchi I]; > s.a. bianchi I.
@ Other spacetimes: Huang PLB(90)ht/04 [inhomogeneous]; Biswas et al GRG(02) [expanding spacetime]; Hong et al PRD(03), PRD(03) [tunneling universe]; > s.a. FRW, gödel, lorentz violation, quantum field theory in curved backgrounds.
@ Special fields: Mashkevich gq/98 [preferred modes]; Maroto & Mazumdar PRL(00)hp/99 [spin-3/2]; > s.a. dirac quantum field theory.

Accelerated Detector (Unruh Effect) > s.a. black hole radiation; casimir effect; Detector; particle effects [self-energy]; radiation.
* Idea: Radiation seen by accelerated detectors (e.g., at rest near a black hole, or Rindler detectors in Minkowski spacetime); An accelerated system heats up, and responds to inertial vacuum fluctuations as if it was immersed in a thermal bath of temperature T = (2/ck) a.
@ General references: Davies JPA(75); Unruh PRD(76) [detector]; Letaw PRD(81); Padmanabhan ASS(82), CQG(85); Unruh & Wald PRD(82), PRD(84); Donoghue & Holstein AJP(84) [elementary arguments]; Wald in(85); Grove & Ottewill CQG(85); Padmanabhan PRL(90); Deser & Levin CQG(98)ht, PRD(99)ht/98; Alsing & Milonni AJP(04)qp [simplified, and spin-1/2]; Lin & Hu PRD(06)gq/05; De Bievre & Merkli CQG(06)mp [proof]; Obadia & Milgrom PRD(07)gq [arbitrary trajectories]; Crispino et al a0710-RMP [rev].
@ Interpretations: Grove CQG(86); Barut & Dowling PRA(90) [without second quantization]; Keyl PLB(97); Lynden-Bell et al AP(99)gq/98; Pauri & Vallisneri FP(99)gq [classical roots]; Hu & Raval qp/00-in; Noltingk IJTP(01) [consistent histories]; Das & Zelnikov PRD(01)ht [holographic]; Akhmedov & Singleton a0705-JETPL [simple arguments].
@ Reviews: Takagi PTP(86); Ginsburg & Frolov SPU(87).
@ Rindler space: Silaev & Khrustalev TMP(92) [no radiation!]; Matsas PLB(96)gq; Oriti NCB(00)gq/99 [spinors]; Schützhold PRD(01)gq/00; Arageorgis et al PhSc(03) [conceptual, and Fulling non-uniqueness]; Peña et al PRD(05)gq; Satz CQG(07)gq/06 [regularisation prescription].
@ dS background: Gibbons & Hawking PRD(77); Garbrecht & Prokopec CQG(04); > s.a. anti-de sitter.
@ Decay of accelerated particles: Vanzella & Matsas PRL(01)gq, Matsas & Vanzella IJMPD(02)gq [Fulling-Davies-Unruh effect].
@ Back-reaction: Reznik PRD(98)gq [first-quantized]; Casadio & Venturi PLA(99)qp; > s.a. Back-Reaction.
@ Related topics: Boyer PRD(84) [classical anlog]; Audretsch et al PRD(95) [continuous decoherence]; Mochizuki & Suga gq/99, Nikolic ht/00 [energy conservation]; Kuckert CMP(01)mp/00 [CPT symmetry]; Fedotov et al PLA(02)ht [scalar background–non-thermal]; Benatti & Floreanini PRA(04); Louko & Satz CQG(06)gq, gq/06-in [spatial profile], CQG(08)-a0710 [curved spacetime]; Obadia gq/07/PRD [in a cavity]; Schlemmer ht/07 [local equilibrium states]; Agulló et al PRD(08)-a0802 [and Planck-scale physics].
@ Finite times: Martinetti & Rovelli CQG(03)gq/02; Schlicht CQG(04)gq/03 [and causality]; Martinetti gq/04.
@ Questioning the effect: Casadio & Venturi PLA(95)qp; Fedotov et al PLA(99)ht; Narozhny et al PRD(02)ht/99; Oriti NCB(00)gq/99 [spinor field]; Ford & O'Connell PLA(06)qp/05; Lin & Hu gq/06.
@ Circular motion, accelerated e's: Bell & Leinaas NPB(83), NPB(87); Rogers PRL(88); Leinaas ht/01-in [storage rings]; Akhmedov et al ht/06 [no radiation]; Schützhold et al PRL(06).
@ Other experimental proposals: Yablonovitch PRL(89) [dynamical Casimir effect]; Rosu IJMPD(94)gq/96, G&C(01)gq/94; Scully et al qp/03 [atoms in a cavity]; Smolyaninov cm/05 [photoluminescence from Au nanotip]; Retzker et al a0710 [in BECs].

Other Effects > s.a. anomalies; quantum field theory [ambiguities]; semiclassical general relativity.
* Suggestion: One should study non-linear quantum mechanics, since states may not obey the superposition principle.
@ Corrections to gravity: Singh CQG(90); Ford PRD(95)gq/94, Ford & Svaiter PRD(96)gq [light-cone fluctuations].
@ Finite temperature: Hu et al PRD(87); Kulikov ht/96-PhD; Laciana AP(98)ht/96; Schützhold et al qp/01 [quantum radiation].
@ Temperature, other: Bertola et al ht/95 [discrete]; Buchholz & Schlemmer CQG(07)gq/06 [local].
@ Negative energies: Pfenning & Ford PRD(97)gq/96 [FRW models], PRD(98)gq/97 [static], gq/98-PhD; Song PRD(97); Vollick PRD(00)gq [2D]; Ford & Roman SA(00)jan [wormholes and warp drive]; Fewster gq/04; > s.a. quantum field theory effects [including quantum inequalities and interest].
@ Cosmology: Parker & Raval PRD(99)gq, PRD(99)gq, gq/99.
@ Early universe physics: Calzetta & Hu ht/95, PRD(95)gq [fluctuations, decoherence and structure].
@ Related topics: Friedlander 75 [waves on curved spaces]; Borgman & Ford PRD(04)gq/03 [geodesic focusing].
> Related topics: see black holes and information; causality violations; CPT; energy conditions; energy-momentum.

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