Brane World: Cosmology| Brane World: Cosmology |
In General
> s.a. acceleration; cosmological-constant
problem; entropy; quintessence;
string phenomenology.
* Phenomenology: 2000,
Carroll showed that if the number of extra dimensions n ≤ 2,
and with some model for matter (gauge field + cosmological constant), there
are no stable models; Expects this to be true more generally; 2003, Models
seem to have difficulties producing a reasonable inflation.
* Models: Randall-Sundrum
models have an AdS bulk; Dvali-Gabadadze-Porrati (DGP) models have a flat,
non-compact bulk.
@ Intros, reviews: Carter IJTP(01);
Langlois PTPS(02)ht-proc;
Brax & van de Bruck CQG(03)ht;
Maartens LRR(04)gq/03;
Brax et al RPP(04)ht;
Calcagni ht/04-proc [inflation, phenomenology];
Coley CJP(05)ap;
Langlois PTPS(06)ht/05;
Wands AIP(06)gq;
Cline PoS-a0704;
Steinhardt & Turok 07.
@ Bounce solutions:
Kanti & Tamvakis PRD(03);
Setare EPJC(06)ht [from self-gravity correction to Friedmann equation].
@ DGP models: Dvali et al PLB(00)ht;
Lue PRP(06);
Gregory et al JHEP(07);
Gregory PTPS(08)-a0801 [fatal flaws];
> s.a. Galileon Field.
@ DGP models, constraints: Battat et al PRD(08)-a0805 [Solar System];
Xia PRD(09);
Gong et al MNRAS(11)-a1008 [excluded by supernova data];
Haranas et al ApSS(12)-a1304 [radar signal delay].
@ Other models: Maggiore & Riotto NPB(99)ht/98;
Cline et al PRL(99) [FLRW + Λ];
Ida JHEP(00);
Kaloper et al PRL(00)ht;
Starkman et al PRD(01)ht/00 [FLRW × compact hyperbolic];
Medved ht/02 [AdS black hole bulk];
Carroll & Guica ht/03 [football-shaped extra dimensions];
Barrow & Tsagas PRD(04)gq/03 [Gödel-type];
Gibbons et al PRL(05) [colliding branes];
> s.a. bianchi models;
types of spacetimes [Einstein universe].
@ Constraints: Hannestad PRD(01)hp;
Fairbairn & Goobar PLB(06)ap/05 [from supernova surveys];
Palma PRD(06)ht/05;
Alam & Sahni PRD(06);
Fay A&A(06)ht;
Dicus & Repko ap/06 [supernovas and DGP];
Rebouças MG11(08)ap/07 [non-trivial topology and DGP].
@ Quantum cosmology:
Koyama & Soda PLB(00);
Bouhmadi & González-Díaz PRD(02);
Boyarsky et al PRL(05)gq/04 [in 5D Schwarzschild-AdS];
Lehners PLB(15)-a1504 [new non-singular ekpyrotic instantons].
@ Related topics: Youm PRD(01),
PRD(01) [variable c];
Maia et al CQG(05)ap/04 [dark energy];
Godłowski & Szydłowski GRG(04)ap [and supernova data];
Gergely PRD(05)gq/04 [no swiss cheese];
Ponce de León GRG(06)gq/04;
Antoniadis et al MG11(08)gq/07 [and singularities];
Greene & Levin JHEP(07) [stabilization and dark energy];
news pw(08)jan [liquid He-3 analog of brane collision];
Nelson & Sakellariadou PLB(09) [spacetime dimensionality and brane collisions];
Astashenok et al ApSS(13)-a1301 [and standard FLRW cosmology];
Olmo & Rubiera-Garcia a1405 [effective f(R) gravity];
> s.a. FLRW spacetime; cosmological perturbations.
Ekpyrotic Scenario
> s.a. early-universe cosmology; inflationary
scenarios [alternatives]; universe from nothing.
* Idea: A cosmological
scenario without an initial singularity, proposed in 2001 by Steinhardt,
Khoury, Turok and Ovrut; The hot big bang is produced in an otherwise empty,
static universe by the collision of a brane in the bulk with a bounding
orbifold plane.
* Phenomenology: It claims
to solve the horizon, flatness and monopole problems by postulating a
slowly contracting phase of the universe prior to the big bang, and to
generate a nearly scale-invariant spectrum of perturbations without the
superluminal expansion of inflation, but with significant non-gaussian corrections.
@ General references: Khoury et al PRD(01)ht;
Kallosh et al PRD(01)ht [criticism],
Khoury et al ht/01 [response];
Hwang PRD(02)ap/01 [power spectrum];
Räsänen NPB(02)ht/01 [brane collisions];
Martin et al PRD(02)ht/01 [bounce];
Räsänen PhD(02)ap [primer];
news pw(08)jan [new version];
Lehners PRP(08)-a0806 [and cyclic].
@ New Ekpyrotic Cosmology: Buchbinder et al PRD(07)ht;
Buchbinder et al JHEP(07)-a0706 [initial conditions].
@ Perturbations:
Brandenberger & Finelli JHEP(01)ht [effective field theory];
Durrer ht/01;
Garriga & Tanaka PRD(02)ht/01;
Lyth PLB(02)hp/01 [bounce];
Martin et al PRD(03)ht/02;
Peter et al ht/02-proc;
Lehners et al PRD(07)ht,
AiA(10)-a1001 [non-gaussianity].
Phenomenology, Tests > s.a. branes [astrophysics];
brane world gravity; modified general
relativity [signature change]; gravitational instantons.
@ General references: Coley CQG(02)
[no chaos in Bianchi IX];
Germani & Sopuerta ASS(03)ht/02 [varying G and Λ].
@ And big bang: Blanco-Pillado et al PRD(04)ht/03 [colliding bubbles].
@ And inflation: Mazumdar & Wang PLB(00);
Huey & Lidsey PLB(01),
PRD(02)ap;
Kyae & Shafi PLB(02);
Green & Mazumdar PRD(02)hp [hybrid];
Kallosh & Linde JCAP(03)ht [supersymmetry];
Tsujikawa et al PRD(04) [constraints];
Ho & Hsu a1404 [and BICEP2];
> s.a. inflationary scenarios.
@ Anisotropy: Koyama PRL(03),
Ringeval et al ht/03/PRD [cmb];
Haghani et al PRD(11)-a1103 [anisotropy dissipation with Born-Infeld matter].
@ Tests: Calcagni JCAP(03)hp,
JCAP(04)hp/03 [inflation];
Pires et al PRD(06) [lookback time];
Huang et al JCAP(06) [inflation].
> Other: see casimir force;
collapse; dark matter;
topological defects; topology change.
Randall-Sundrum Models > s.a. black holes;
boundaries in field theory; branes;
propagation of gravitational waves; tests
of general relativity.
* Idea: The extra dimensions
are compactified; The usual spacetime is a 4D hypersurface or brane, and the
bulk spacetime is Anti-de Sitter; Need a large Λ < 0; First
model motivated by claims that it solves the hierarchy problem; Second model,
with hidden brane pushed to infinite distance, motivated by claims that it
reproduces Newtonian gravity.
@ Theory: Randall & Sundrum PRL(99)ht,
PRL(99)ht
+ pn(99)oct;
Garriga & Tanaka PRL(00)ht/99 [and gravity];
Ichinose CQG(01)ht/00 [1 wall],
PRD(02)ht/00 [wall + anti-wall];
Kakushadze PLB(01)ht/00 [gravity];
Campos & Sopuerta PRD(01)ht,
PRD(01)ht;
Mannheim ht/06-proc [propagators and causality].
@ Models: Padmanabhan & Shankaranarayanan PRD(01)ht/00 [4D Schwarzschild spacetime, de Sitter spacetime];
Barceló & Campos PLB(03)ht/02 [analogs];
Randall et al JHEP(05)ht [discretized];
Casadio et al CQG(15)-a1503
[minimal geometric deformation approach to spherically symmetric objects].
@ And cosmology: Barceló & Visser PLB(00)ht [in 5D-AdS];
Stoica et al PLB(00)ht;
van de Bruck et al PLB(00)ht;
Boehm et al PRD(01)ht [instability];
Campos & Sopuerta PRD(01)ap [Bianchi I & V];
Kanno PRD(05)ht [Hořava-Witten supersymmetric extension];
Dwornik et al SPP(14)-a1210 [and galactic rotation curves].
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send feedback and suggestions to bombelli at olemiss.edu – modified 23 oct 2019