Graviton |
In General
> s.a. cosmological constant [fat]; gravitational radiation;
spin-2 field theories; quantum field theory in curved spacetime.
* Idea:
Classically, a solution of the wave equation obtained linearizing
the Einstein equation; In quantum theory, a quantum of the spin-2
field obtained linearizing gravity; From the point of view of
non-perturbative quantum gravity, gravitons appear as approximations
to the deeper fundamental excitations of quantum geometry.
* Reality and detection:
Freeman Dyson has questioned whether any conceivable experiment in the
real universe can detect a single graviton; If not, is it meaningful
to talk about gravitons as physical entities?
@ General references: in Wentzel 49.
@ Non-linear: Penrose GRG(76),
GRG(76);
Przanowski et al MPLA(98)
[and sl(n, \(\mathbb C\)) chiral fields].
@ Related topics: Rothman & Boughn FP(09)gq [reality and detection];
Sokołowski & Staruszkiewicz CQG(06)gq [properties];
Dyson IJMPA(13) [detection];
Gubitosi & Magueijo PRD(17)-a1610 [correlations between right- and left-handed gravitons];
> s.a. particle types [abundance].
In Quantum Gravity
> s.a. approaches to quantum gravity [linearized] and
connection representation; covariant quantum gravity.
@ Propagator, spin-foam models: Rovelli PRL(06)gq/05;
Bianchi et al NPB(09);
Miković & Vojinović a1103 [ELPR/FK models and modified vertex amplitudes];
Riello PRD(14) [radiative corrections];
Han et al PRD(18)-a1711 [with cosmological constant];
> s.a. spin-foam models.
@ Propagator: Bianchi et al CQG(06)gq [lqg];
Livine & Speziale JHEP(06)gq [group integral techniques];
Huang & Parker a0705/PRD [in massive gravity theory];
Alesci & Rovelli PRD(07)-a0708,
PRD(08)-a0711 [and Barrett-Crane vertex];
Dittrich et al PRD(07)-a0707 [and 4-simplex Regge action];
Alesci IJMPA(08)-a0802-proc;
Magliaro & Perini IJMPA(08)-proc [in lqg vs linearized gravity];
Alesci et al CQG(09)-a0812;
Faizal CQG(12)-a1112 [in n-dimensional AdS spacetime];
Vereshkov & Marochnik JModP(13)-a1108 [in the Heisenberg representation];
Faizal & Higuchi PRD(12)-a1107 [covariant and physical, in de Sitter spacetime];
Miao et al PRD(14)-a1306 [in de Sitter spacetime];
Rahbardehghan EPJC(15)-a1406 [group-theoretical approach];
Khatsymovsky IJMPA(18)-a1804,
Knorr & Schiffer a2105 [non-perturbative];
> s.a. 3D quantum gravity;
spin networks.
@ Matter coupling:
Bern et al PRL(00) [and strings];
Álvarez & Faedo PRD(07)-a0707.
@ String-inspired:
Branson et al IJMPA(00);
Giudice et al NPB(05)hp/04 [collider effects with large extra dimensions].
@ Photon-graviton scattering: Källberg et al CQG(06)gq/04;
Bjerrum-Bohr et al PRD(15)-a1410;
Bartolo et al PRD(18)-a1804.
@ Scattering, other:
Dunbar & Norridge CQG(97);
Deser et al CQG(99);
Bedford et al NPB(05)ht,
Cachazo & Svrček ht/05 [tree-level recursion relations];
Holstein AJP(06)nov-gq [interaction with matter];
Vázquez JHEP(09) [in AdS/cft];
Delfino et al JHEP(15)-a1210
[graviton-graviton scattering in the pure connection formalism for gravity];
Boels and Medina PRL(17)-a1607 [gravitons and gluons, from first principles].
@ Self-energy: Grillo CQG(01)ht/99;
> s.a. quantum field theory techniques [worldline approach].
@ Related topics: Gould AP(95) [graviton production];
Modanese PLB(95) [lifetime for decay into gravitons];
Boughn & Rothman CQG(06)gq [emission-absorption by H atoms];
Barrau & Grain a0805-proc [lqg propagator in FLRW spacetime, and cosmological perturbations];
Laperashvili MPLA(11)-a1107 [in Plebański formulation, essentially renormalizable];
Bern et al PRD(14)-a1406 [low-enery behavior];
Latosh EPJP-a2005 [mixing of graviton spin states].
> Related topics:
see Goldstone Boson; quantum regge calculus.
Other Effects and Related Topics
> s.a. branes [dispersion relation]; decoherence;
green functions; tests of general relativity.
* Effects of non-zero mass:
Corrections of order \((\lambda/\lambda_{\rm Compton}^~)^2\)
to graviton propagation, which would lead to dispersion.
* Giant graviton puzzle:
The apparent multiplicity of supergravity states dual to field theory
chiral primary operators.
@ Early universe:
Gershtein et al gq/01;
Zee PLB(04)ht/03 [and dark energy];
news nat(13)sep
[detecting gravitons in the cmb polarization].
@ Giant graviton: Janssen & Lozano CQG(03) [non-Abelian effective action];
Prokushkin et al JHEP(04) [bound states];
Bena & Smith PRD(05) [re solution].
@ Composite graviton: Moffat gq/03 [and cosmological constant];
Okui PRD(06)hp/05 [and collider physics].
@ Ghost gravitons: Deruelle et al JHEP(12)-a1202
[vs Lorentz-symmetry violation in Weyl gravity, and the spectrum of primordial gravitational waves].
> Other effects:
see bose-einstein condensates; dark-energy
types [scalar graviton]; Gravitational Memory [soft gravitons].
Mass / Theories with Massive Gravitons > s.a. emergent
gravity; massive gravity; newtonian
gravity [mass]; Pauli-Fierz Lagrangian.
* Idea: In general relativity
gravitational waves travel at the speed of light, and the mass of the graviton
is zero; Not so in some modified gravity theories.
* Mass bounds:
2016, \(m < 1.2 \times 10^{-22}\) eV/\(c^2\), from an analysis of the phase
of the wave in the first LIGO detection; Gravitational waves and gamma rays
from the binary neutron star merger event GW170817 arrived within 1.74
seconds of each other, even after traveling for 120 million years; 2020,
\(m < 2 \times 10^{-28}\) eV/\(c^2\), from binary pulsars.
@ General references:
van Dam & Veltman GRG(72);
Novello & Neves CQG(03)gq/02 [meff in AdS];
Chamseddine ht/04-conf [from spontaneous symmetry breaking];
Gabadadze & Gruzinov PRD(05) [instability of Minkowski];
Dvali et al PRL(08)-a0806 [non-Pauli-Fierz];
Bebronne PhD(09)-a0910 [theory and phenomenology];
Bernard et al a1504 [in an arbitrary curved background];
> s.a. conservation laws.
@ In various theories: Visser GRG(98)gq/97 [gravity with background metric];
Porrati MPLA(03) [from coupling to cft in AdS];
Myung PRD(10)-a0906 [Hořava-Lifshitz gravity];
Capozziello et al IJTP(10)-a1001 [f(R) gravity];
de Roany et al PRD(11)-a1109 [Visser's bimetric theory].
@ And the cosmological constant: Novello IJMPD(04);
Metaxas a1010 [from scalar field coupling].
@ And the cmb: Bessada & Miranda CQG(09) [polarization];
Dubovsky et al PRD(10)-a0907 [anisotropy and polarization].
@ And cosmology: Dubovsky JHEP(04),
et al PRL(05)ht/04 [as dark matter];
Tajmar CQG(06)gq,
Alves et al PLB(11) [and dark energy];
Pshirkov et al PRL(08) [as dark matter, constraints];
Eckhardt et al NA(10)-a0909 [and supernova-Ia and CMB observations];
Alves et al PRD(10)-a1007 [constraints on Visser's model];
Berkhahn et al JCAP(10) [stability of massive cosmological gravitons];
Tsamis & Woodard IJMPD(11)-a1103 [interactions and "cosmological screening", expansion slowdown];
Koyama et al IJMPD(11) [ghost-free theory];
Biermann & Harms a1205 [graviton background as dark energy];
De Felice & Mukohyama PRL(17)-a1607
[m = 9.8 × 10−33
eV/c2 and tension in cosmological data].
@ Mass bounds: Goldhaber & Nieto RMP(10)-a0809;
Berti et al PRD(11) [massive black-hole populations];
Farag Ali & Das IJMPD(16)-a1605-GRF [theory];
de Rham et al RMP(17)-a1606 [rev];
Zakharov et al IJMPcs(18)-a1712 [ways to estimate];
Will CQG(18)-a1805
& CQG+ [solar system vs gravitational-wave bounds];
Gupta & Desai AP(18)-a1810 [stacked galaxy cluster catalogs],
CQG(19)-a1811 [Chandra X-ray cluster sample];
Perkins & Yunes CQG(19)-a1811 [gravitational-wave propagation, with screening];
Bernus et al PRL(19) [planetary ephemeris];
Shao et al a2007 [binary pulsars].
@ Mass bounds, compact binaries: Will PRD(98)gq/97;
Finn & Sutton PRD(02)gq/01;
Sutton & Finn CQG(02)gq/01;
Larson & Hiscock PRD(00)gq/99;
Cutler et al PRD(03) [and LISA];
Jones ApJL(05)gq/04 [eccentric];
Arun & Will CQG(09) [higher harmonics in gravitational-wave templates];
Keppel & Ajith PRD(10)-a1004 [gravitational waves from binary black holes].
@ Other phenomenology: de Paula et al CQG(04)gq [wave polarization states];
Brandt et al PLA(08)
[inside a superconductor, in terms of fundamental constants];
Momeni a0903-wd [and bending of light];
> s.a. black-hole hair; gravitational radiation.
main page
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