|  Entanglement in Relativistic Quantum Field Theory and Spacetime | 
Frame Dependence and Relativity
  > s.a. causality violations; unruh effect [anti-Unruh effect].
  @ Observer dependence: Vecchi qp/01;
    Ortiz et al qp/04-in;
    Alsing & Fuentes CQG(12)-a1210.
  @ And special relativity: Gingrich & Adami PRL(02)qp [effect of motion];
    Alsing & Milburn qp/02/PRA [Lorentz transformations];
    Timpson & Brown qp/02-in [non-locality];
    Ahn et al qp/03,
    PRA(03);
    Moffat IJMPD(04)qp/03;
    Schust et al FP(04) [3-particle];
    Yakaboylu MS(10)-a1005;
    Horwitz & Arshansky a1707;
    > s.a. quantum locality.
  @ Examples: Pachos & Solano QIC(03)qp/02 [spin-1/2 particles];
    Harshman PRA(05)qp/04 [Bell-type 2-particle];
    Jordan et al PRA(07) [spin-1/2 particles];
    Ohkawa qp/07 [entangled causal relations?];
    Lin & Hu PRD(10)-a0910 [causally-disconnected objects].
  @ Non-inertial frames: Alsing & Milburn PRL(03)qp;
    Alsing et al JOB(04)qp/03;
    Massar & Spindel PRD(06)ht [uniformly accelerated];
    Ling et al JPA(07)qp/06 [electromagnetic fields];
    Alsing et al PRA(06) [Dirac fields];
    Bruschi et al PRA(10) [validity of single-mode approximation];
    Mehri-Dehnavi et al AP(11) [pseudo-entanglement];
    Smith & Mann PRA(12)-a1107 [tripartite non-locality];
    Ostapchuk et al JHEP(12)-a1108 [between inertial and accelerating detector];
    Bruschi et al NJP(14)-a1406 [effects of gravity and acceleration, space-based experiments];
    Regula et al PRD(16)-a1509 [2D accelerated cavities].
Entanglement and Gravity, Spacetime
  > s.a. causality in quantum theory; emergent gravity;
  entanglement phenomenology [dynamics]; tensor networks.
  * Idea: In 2009-2010 Van Raamsdonk,
    building on previous work by others, argued that entanglement might be the basis of geometry.
  @ General references: Fursaev JPA(06)in [gravity];
    Olson & Ralph PRL(11) [entanglement between future and past];
    Martín-Martínez et al PRD(16)-a1507 [and spatial topology];
    Price & Wharton Ent(15)-a1508 [quantum correlations and Costa de Beauregard's zigzag];
    Liu et al PRL(15)
    + news sd(15)may [entanglement of conformal field theories and locality of gravity];
    Nomura et al PLB(16)-a1607;
    Van Raamsdonk a1609-ln;
    news sa(16)oct [It from Qubit];
    Paunković & Vojinović CQG(18)-a1702 [gravity and matter are always entangled];
    Nomura et al PRD(18)-a1711;
    Cao & Carroll a1712 [in a bulk region];
    Plewa JPA(19)-a1806 [postulates, example of harmonic oscillator];
    Headrick a1807 [popular-level introduction];
    Godet & Marteau JHEP(19)-a1908 [gravitation from the first law of entanglement];
    & Esfeld; Jaksland;
    Chevalier et al PRA(20)-a2005 [proposed experiment].
  @ Entangled-history states: Cotler & Wilczek PS(16)-a1502-in,
    a1503;
    Cotler et al AP(17)-a1601
    + news sci(16)jan [GHZ-type, tests];
    Dong et al SciB(17)-a1610 [with multiple time nodes];
    Nowakowski AIP(17)-a1701,
    Rajan a2007-PhD [entanglement in time].
  @ Spacetime entanglement: Wien MS-a1408 [holographic approach];
    Roy & Sarkar PRD(18)-a1801 [bulk metric reconstruction];
    Zizzi MPLA(18)-a1807 [model];
    > s.a. emergence of spacetime.
  @ In curved spacetimes:
    Martín-Martínez et al PRD(10)-a1006 [entanglement degradation from Hawking effect];
    Martín-Martínez & Menicucci CQG(14)-a1408 [and cosmology];
    Martín-Martínez & Louko PRL(15)-a1502 [and firewalls];
    Pierini et al NPB(17)-a1606 [and spacetime anisotropy];
    Matsumura & Nambu PRD(18)-a1707 [in de Sitter space];
    Oh et al PRD(18)-a1709 [entanglement vector field and flux];
    Pierini et al EPJD(19)-a1812 [entanglement generated by cosmological expansion];
    Kiosses a2012 [localized entangled states in curved spacetime];
    Balasubramanian et al a2104 [entangled disjoint universes].
  @ Entangled masses: Marletto & Vedral PRL(17)-a1707,
    comment Hall & Reginatto a1707;
    Bose et al PRL(17)-a1707;
    news pw(18)jan;
    Ghose & Rajagopal a1802 [at LIGO];
    news quanta(18)mar;
    Christodoulou & Rovelli PLB(19)-a1808 [generally covariant description];
    Cheng et al EPJC(18)-a1812
      [gravitationally polarizable subsystems, from vacuum spacetime fluctuations];
    Krisnanda et al npjQI(20)-a1906 [gravitationally-induced entanglement];
    van de Kamp et al PRA(20)-a2006;
    Galley et al a2012 [no-go result];
    Rijavec et al NJP(21)-a2012 [tests, and decoherence effects];
    Kanno et al a2103
      [macroscopic mirrors, and graviton detection].
  @ Quantum gravity: Marin et al a1201;
    Kempf FP(14)-a1302-conf [spacetime curvature and spatial entanglement of the vacuum];
    Myers et al JHEP(13);
    Giddings JHEP(15)-a1503 [Hilbert space structure, non-locality and entanglement];
    Chirco et al PRD(18)-a1703,
    Mele a1703-MS [spin network states];
    Feller & Livine CQG(18)-a1710 [in lqg];
    Kay FP(18)-a1802-conf [matter-gravity entanglement hypothesis];
    Blanco et al JHEP(18)-a1803 [boundary subregions];
    Husain & Singh CQG(20)-a1907
      [matter-gravity entanglement: early-universe remnant and 'first law'];
    Kay a1909-proc;
    > s.a. GUP phenomenology; spin networks.
  @ And black holes: Fuentes-Schuller & Mann PRL(05)qp/04;
    Ahn JKPS(07)qp/06 [near Schwarzschild black hole, and Hawking radiation];
    Adesso & Fuentes-Schuller QIC(09)qp/07 [across a black hole horizon];
    Said & Adami PRD(10)-a1001 [Kerr-Newman spacetime];
    Martín-Martínez et al PRD(10)-a1007 [in black-hole formation];
    Wang et al PLB(10)-a1007 [Schwarzschild spacetime, entanglement redistribution];
    Hutchinson & Stojković CQG(16)-a1307;
    Martín-Martínez & Louko PRL(15)-a1502 [and firewalls];
    Cadoni & Jain IJMPA(17)-a1703 [and horizons];
    Henderson et al CQG(18)-a1712 [black holes inhibit entanglement harvesting];
    Jefferson a1901-essay;
    > s.a. black-hole entropy.
  @ And wormholes: Maldacena & Susskind FdP(13)-a1306 [entangled black holes];
    Gharibyan & Penna PRD(14)-a1308;
    Baez & Vicary CQG(14)-a1401 [in 3D topological quantum field theory];
    Lobo et al EPJC(14)-a1402 [and the ER = EPR correlation].
  > Matter-gravity entanglement:
    see quantum regge calculus; types of entropy.
  > Related topics: see bimetric gravity;
    entropic gravity; multiverse;
    quantum regge calculus; topology and physics
    [non-trivial topologies].
In Quantum Field Theory > s.a. neutrino oscillations;
  particle effects [particle creation].
  @ General references: Clifton & Halvorson SHPMP(01)qp/00 [algebraic];
    Bertlmann LNP(06)qp/04 [particle physics];
    Shi PRD(04)ht;
    't Hooft a0908-conf [in a local deterministic theory?];
    Swingle a1010 [and mutual information];
    Teresi & Compagno a1012 [using Rényi entropy];
    Balasubramanian et al PRD(12)-a1109
      [and renormalization, mutual information between different momentum scales];
    Friis & Fuentes JMO(12)-a1204 [general framework and applications];
    Buniy & Hsu PLB(12)-a1205 [all particles in the universe];
    Mondal JHEP(16)-a1501 [particles vs spatial regions];
    Witten RMP(18)-a1803;
    Reginatto & Hall a1809 [via classical gravity];
    > s.a. entanglement [field theory point of view].
  @ Vacuum: Reznik FP(03) [entropy and correlations];
    Silman & Reznik PRA(07)qp/06 [Dirac vacuum];
    Cliche & Kempf PRD(11)-a1008 [and curvature];
    Brown et al PRD(15)-a1409 [regions within a vacuum];
    > s.a. vacuum phenomenology [harvesting of entanglement].
  @ Vacuum, in spacetime:
    Dragan & Fuentes a1105 [structure];
    Olson & Ralph PRA(12)
    + news wired(16)jan [extraction of timelike entanglement].
  @ Electrodynamics: van Enk PRA(03);
    Rice et al OE(06)qp [cavity QED];
    Zhang & Xu OC(09)-a0906 [2 atoms in cavity, sudden death and birth];
    Ivan et al PRA(11)-a1009 [multi-mode radiation states];
    > s.a. entangled systems [photons];
      photon phenomenology.
  @ In an expanding spacetime: Ball et al PLA(06)qp/05 [2D scalar field];
    Nambu & Ohsumi PRD(09) [coarse-grained quantum field],
    PRD(11)-a1105 [classical and quantum correlations];
    Fuentes et al PRD(10) [2D Dirac field];
    Moradi & Rasouli IJTP(10)-a1201 [and cosmological parameters];
    Pierini et al IJTP(16)-a1507 [Dirac field, spin effects];
    Lee JKPS-a1510 [dark matter and galactic halos];
    Alexander et al MPLA(17)-a1602,
    EPL(16)-a1607 [interactions and gravitational enhancement];
    Machado et al PRD(18)-a1811 [charged fermions];
    > s.a. dark matter; inflation.
  @ Other fields: Marcovitch et al PRA(09)-a0811 [1D Klein-Gordon field];
    Montero & Martín-Martínez PRA(12)-a1111 [fermionic field];
    Salton et al PRD(17)-a1611 [Chern-Simons theory];
    Benatti & Floreanini JPA(16)-a1605 [Majorana fermions, in the algebraic approach];
Mielczarek & Trześniewski a1911 [gauge fields].
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