Cosmological imprint of an energy component with general equation of state

R. R. Caldwell; Rahul Dave; Paul J. Steinhardt

doi:10.1103/PhysRevLett.80.1582

Cosmological imprint of an energy component with general equation of state

R. R. Caldwell, Rahul Dave, Paul J. Steinhardt

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

3111 Scopus citations

Abstract

We examine the possibility that a significant component of the energy density of the Universe has an equation of state different from that of matter, radiation, or cosmological constant (Λ). An example is a cosmic scalar field evolving in a potential, but our treatment is more general. Including this component alters cosmic evolution in a way that fits current observations well. Unlike Λ, it evolves dynamically and develops fluctuations, leaving a distinctive imprint on the microwave background anisotropy and mass power spectrum.

Original language	English (US)
Pages (from-to)	1582-1585
Number of pages	4
Journal	Physical review letters
Volume	80
Issue number	8
DOIs	https://doi.org/10.1103/PhysRevLett.80.1582
State	Published - Feb 23 1998
Externally published	Yes

All Science Journal Classification (ASJC) codes

General Physics and Astronomy

Access to Document

10.1103/PhysRevLett.80.1582

Cite this

@article{56e832f4e3014d529d3e9a88b2e15ec4,

title = "Cosmological imprint of an energy component with general equation of state",

abstract = "We examine the possibility that a significant component of the energy density of the Universe has an equation of state different from that of matter, radiation, or cosmological constant (Λ). An example is a cosmic scalar field evolving in a potential, but our treatment is more general. Including this component alters cosmic evolution in a way that fits current observations well. Unlike Λ, it evolves dynamically and develops fluctuations, leaving a distinctive imprint on the microwave background anisotropy and mass power spectrum.",

author = "Caldwell, {R. R.} and Rahul Dave and Steinhardt, {Paul J.}",

year = "1998",

month = feb,

day = "23",

doi = "10.1103/PhysRevLett.80.1582",

language = "English (US)",

volume = "80",

pages = "1582--1585",

journal = "Physical review letters",

issn = "0031-9007",

publisher = "American Physical Society",

number = "8",

}

TY - JOUR

T1 - Cosmological imprint of an energy component with general equation of state

AU - Caldwell, R. R.

AU - Dave, Rahul

AU - Steinhardt, Paul J.

PY - 1998/2/23

Y1 - 1998/2/23

N2 - We examine the possibility that a significant component of the energy density of the Universe has an equation of state different from that of matter, radiation, or cosmological constant (Λ). An example is a cosmic scalar field evolving in a potential, but our treatment is more general. Including this component alters cosmic evolution in a way that fits current observations well. Unlike Λ, it evolves dynamically and develops fluctuations, leaving a distinctive imprint on the microwave background anisotropy and mass power spectrum.

AB - We examine the possibility that a significant component of the energy density of the Universe has an equation of state different from that of matter, radiation, or cosmological constant (Λ). An example is a cosmic scalar field evolving in a potential, but our treatment is more general. Including this component alters cosmic evolution in a way that fits current observations well. Unlike Λ, it evolves dynamically and develops fluctuations, leaving a distinctive imprint on the microwave background anisotropy and mass power spectrum.

UR - http://www.scopus.com/inward/record.url?scp=11744309906&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=11744309906&partnerID=8YFLogxK

U2 - 10.1103/PhysRevLett.80.1582

DO - 10.1103/PhysRevLett.80.1582

M3 - Article

AN - SCOPUS:11744309906

SN - 0031-9007

VL - 80

SP - 1582

EP - 1585

JO - Physical review letters

JF - Physical review letters

IS - 8

ER -

Cosmological imprint of an energy component with general equation of state

Abstract

All Science Journal Classification (ASJC) codes

Access to Document

Other files and links

Fingerprint

Cite this