Smooth initial conditions from weak gravity

Brian Greene; Kurt Hinterbichler; Simon Judes; Maulik Parikh

doi:10.1016/j.physletb.2011.02.004

Smooth initial conditions from weak gravity

Brian Greene, Kurt Hinterbichler, Simon Judes, Maulik Parikh

Research output: Contribution to journal › Article › peer-review

12 Scopus citations

Abstract

CMB measurements reveal an unnaturally smooth early universe. We propose a mechanism to make this smoothness natural by weakening the strength of gravity at early times, and therefore altering which initial conditions have low entropy.

Original language	English (US)
Pages (from-to)	178-183
Number of pages	6
Journal	Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume	697
Issue number	3
DOIs	https://doi.org/10.1016/j.physletb.2011.02.004
State	Published - Mar 7 2011
Externally published	Yes

Keywords

Arrow of time
Initial conditions
Smoothness
Weak gravity

ASJC Scopus subject areas

Nuclear and High Energy Physics

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10.1016/j.physletb.2011.02.004

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title = "Smooth initial conditions from weak gravity",

abstract = "CMB measurements reveal an unnaturally smooth early universe. We propose a mechanism to make this smoothness natural by weakening the strength of gravity at early times, and therefore altering which initial conditions have low entropy.",

keywords = "Arrow of time, Initial conditions, Smoothness, Weak gravity",

author = "Brian Greene and Kurt Hinterbichler and Simon Judes and Maulik Parikh",

note = "Funding Information: The authors wish to thank David Albert, Sean Carroll, Ethan Dyer, Dan Kabat, Janna Levin and Ali Masoumi for discussions, and acknowledge support by DOE grant DE-FG02-92ER40699 . B.G. and M.P. were supported in part by FQXi grant Arrows of Time in the Quantum Universe.",

year = "2011",

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doi = "10.1016/j.physletb.2011.02.004",

language = "English (US)",

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pages = "178--183",

journal = "Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics",

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TY - JOUR

T1 - Smooth initial conditions from weak gravity

AU - Greene, Brian

AU - Hinterbichler, Kurt

AU - Judes, Simon

AU - Parikh, Maulik

N1 - Funding Information: The authors wish to thank David Albert, Sean Carroll, Ethan Dyer, Dan Kabat, Janna Levin and Ali Masoumi for discussions, and acknowledge support by DOE grant DE-FG02-92ER40699 . B.G. and M.P. were supported in part by FQXi grant Arrows of Time in the Quantum Universe.

PY - 2011/3/7

Y1 - 2011/3/7

N2 - CMB measurements reveal an unnaturally smooth early universe. We propose a mechanism to make this smoothness natural by weakening the strength of gravity at early times, and therefore altering which initial conditions have low entropy.

AB - CMB measurements reveal an unnaturally smooth early universe. We propose a mechanism to make this smoothness natural by weakening the strength of gravity at early times, and therefore altering which initial conditions have low entropy.

KW - Arrow of time

KW - Initial conditions

KW - Smoothness

KW - Weak gravity

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U2 - 10.1016/j.physletb.2011.02.004

DO - 10.1016/j.physletb.2011.02.004

M3 - Article

AN - SCOPUS:79951515709

SN - 0370-2693

VL - 697

SP - 178

EP - 183

JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

IS - 3

ER -

Smooth initial conditions from weak gravity

Abstract

Keywords

ASJC Scopus subject areas

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