In General > s.a. phenomenology
and scenarios.
* Idea: A universe with
an accelerating expansion rate, d2a/dt2 > 0
for FRW space in proper time; The expansion may be exponential, a
exp{Ht}.
* Origin in homogeneous cosmology:
It arises in models where (e.g., because of a phase transition) the energy
density remains constant during the expansion,
like a cosmological constant; This changes drastically the expansion rate wrt
the standard big bang
model, and makes it exponential in time (inflation), and we get a de Sitter-like
behavior.
* Motivation: A sufficiently
long inflation could solve the horizon, flatness and monopole problems of big
bang models, and possibly explain structure
formation;
It makes predictions, and provides a link between high-energy physics and cosmology.
* Generalized view: The universe has no beginning and no end, inflating
bubbles in it keep producing new ones.
* 1980s:
Inflation predicts
=
1, but observationally we see
< 0.3
(without dark matter)
* 1991: What is the inflaton?
How does it become ordinary matter (reheating problem)?
* 1998: Chaotic inflation
seems to be the most widely accepted; Requires the least amount of
fine tuning.
* 2008: Predictions from
inflation have so far been confirmed, but what drove it and how long did it last?
Specific Issues > s.a. de
sitter-cft;
holography in field theory; Civilizations; singularities [theorems];
arrow of time.
* Issues: Understand the quantum theory of cosmological perturbations,
how these might have led to inflation, and what imprint they left on the resulting
classical spacetime.
@ General references: Albrecht et al PRD(87);
Goncharov & Linde JETP(87);
Jensen & Stein-Schabes PRD(87);
Ellis CQG(88)
[with current
not
1];
Accetta & Steinhardt
GRG(91);
Frolov & Kofman JCAP(03)ht/02 [de
Sitter thermodynamics]; Kinney & Riotto JCAP(06)ap/05 [uncertainties].
@ Preheating and reheating: Dolgov & Linde, Abbott et al [elementary
theory]; Boyanovsky et al ap/96-in
[review]; Kofman et al PRD(97)hp;
Bassett & Tamburini
PRL(98)
[in GUTs]; Brandenberger hp/01-in.
@ And phase transitions: Mazenko et al PRD(85);
Freivogel et al a0901 [probability distribution for bubble collisions].
@ Inhomogeneities, causality/genericity: Goldwirth & Piran PRD(89),
PRP(92);
Calzetta & Sakellariadou PRD(92), PRD(93);
Iguchi & Ishihara
PRD(97), et al PRD(97)gq/96 [curvature];
Kaloper et al PRD(99)ht/98;
Vachaspati & Trodden
PRD(00)gq/98;
Toporensky G&C(99)gq;
Sakai CQG(04)gq/03 [topological
inflation]; Imponente & Montani
gq/04; >
s.a. phenomenology [perturbations].
@ Initial conditions: Calzetta PRD(91); Kaloper et al JHEP(02)ht;
Collins
& Holman ht/05 [effective
theory renormalization].
@ Likelihood of inflation: Albrecht & Sorbo PRD(04)ht [framework].
And Planck Scale Physics > s.a. perturbations;
FRW and minisuperspace
quantum cosmology.
* Idea: Issues studied
include the possible emergence of an inflationary from a quantum gravity instanton–tunneling
solution, and the predictions for the perturbation spectrum in various approaches
to quantum gravity.
@ General references: Brandenberger & Martin MPLA(01)ap/00,
PRD(05)ht/04;
Niemeyer PRD(01)
[cutoff]; Danielsson PRD(02)ht;
Shankaranarayanan CQG(03)gq/02;
Hassan & Sloth NPB(03)ht/02 [and
gup]; Burgess et al JHEP(03)ht/02;
Alberghi et al PLB(04)gq/03;
Cremonini PRD(03)ht [quantum-deformed
wave equation]; Tsamis & Woodard CQG(09)-a0807 [simplified
model].
@ Fluctuations: Starobinsky JETPL(01)ap [robustness
of perturbations]; Easther et al PRD(02)ht [spectrum];
Danielsson JCAP(06)ht/05 [spectrum
and expansion];
Kempf & Lorenz PRD(06)gq [with
minimum length]; Kim MPLA(07)ap-in
[effects of quantum fluctuations]; Martin LNP(08)-a0704
[Schwinger
effect analogy, review].
@ Primordial inflation: Vilenkin PRD(83); Moss & Wright PRD(84);
Hawking & Page NPB(88).
@ Emergence from quantum cosmology: Hawking & Turok PLB(98)ht,
gq/98, Turok
& Hawking PLB(98)ht [Hartle-Hawking
proposal]; Linde PRD(98)gq,
Bousso & Linde PRD(98)gq [tunneling];
Garriga PRD(00)ht/98;
González-Díaz ht/98,
PRD(99)ht/98;
Unruh gq/98;
Vilenkin PRD(98)ht;
Barvinsky et al MPLA(99)gq;
Hawking & Hertog
PRD(02)ht;
Luzzi a0705-PhD
[WKB approximation];
Hawking
a0710 [volume
weighting in no-boundary proposal]; > s.a. early-universe
cosmology, perturbations, phenomenology [decoherence
and classicality].
@ And lqc:
Nunes PRD(05)ap [lqg];
Germani et al PRD(07)gq [lqg,
highly improbable]; Zhang & Ling JCAP(07)-a0705
[lqg]; Copeland et al PRD(08)-a0708 [super-inflation];
Nelson a0708-in
[probability of inflation]; Artymowski et al JCAP(09)-a0807 [corrections,
and cmb]; Wu et al JCAP(09) [tachyonic, inverse-volume corrections].
@ Other quantum-gravity effects: Tsamis & Woodard NPB(96)hp,
AP(97)hp/96,
AP(98);
de Barros et al CQG(99)
[Schwinger-DeWitt]; Pinto-Neto & Colistete
PLA(01)
[graceful exit]; Easther et al PRD(01)ht,
PRD(03)ht/01 [strings
and perturbations]; Woodard NPPS(02)ap/01-in;
Hogan ap/02-in
[info bounds and fluctuations]; Tsujikawa et al CQG(04)ap/03 [lqg];
Weinstein & Akhoury
ht/03, ht/03;
Guzmán et al PRD(04)
[supersymmetric quantum cosmology]; Bachmann & Kempf gq/05 [on
cmb]; Tsamis & Woodard CQG(05)gq [quantifying
acceleration]; Kahya & Woodard PRD(07)-a0709 [corrections
to inflaton self-mass]; > s.a. consequences
of lorentz violation, quantum
spacetime; early-universe cosmology [transplanckian
issue].
@ And string theory: Kachru et al JCAP(03)ht;
Brandenberger ht/05-in.
@ And non-commutative geometry: Chu et al MPLA(01)ht/00;
Alexander et al PRD(03)ht/01;
Lizzi et al JHEP(02)ht;
Tsujikawa et al PLB(03)
[inflation and cmb].
References > s.a. entropy
bounds; gravitational
instantons; history; types
of scenarios [alternatives].
@ I: Guth & Steinhardt SA(84)may; Lindley Nat(90)may;
Steinhardt Nat(90)may;
Linde SA(94)nov; Lidsey 00.
@ Books: Abbott & Pi 86; in Kolb & Turner 94; Linde 90-ht/05;
Guth 97; Liddle & Lyth
00; Lemoine et al 08; Lyth & Liddle 09.
@ Reviews: Linde RPP(84),
PT(87)sep, gq/96-in, gq/96-in;
Turner APPB(87), in(88);
Olive PRP(90);
Brandenberger ap/96, ap/97, hp/99-ln;
Starobinsky ap/98-in;
Peebles ap/99-in;
Guth PRP(00)ap,
ap/00-in, ap/01-in;
Lyth hp/00;
Brandenberger hp/01-in, ap/02;
Linde IJMPA(02)ht/01-in
[vs ekpyrotic]; García-Bellido NPPS(03)hp/02-in;
Turok CQG(02);
Turner ap/02-in;
King hp/03-in;
Guth ap/03-in, ap/04-in;
Linde
ht/04-in;
Guth & Kaiser
Sci(05)ap;
Bassett et al RMP(06)ap/05
[especially reheating]; Guth JPA(07)ht-in
[especially eternal]; Linde LNP(08)-a0705-in;
Kinney IJMPA(07);
Baumann & Peiris ASL(09)-a0810;
Sriramkumar a0904-CS
[and perturbations]; Baumann a0907-ln.
@ Intros: Liddle ap/99-in;
Faraoni AJP(01)mar-phy/00;
Albrecht ap/00-in;
Watson
ap/00;
Tsujikawa hp/03-in;
Lazarides JPCS(06)hp-ln;
Langlois a0811-in;
Kinney a0902-ln.
@ Philosophical: Earman & Mosterin PhSc(99)mar;
Knobe et al BJPS(06)phy/03
[implications,
and doomsday].
main page – abbreviations – journals – comments – other
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send feedback and suggestions to bombelli at olemiss.edu – modified 22
sep 2009