Direct determination of cosmic string loop density from simulations - INSPIRE

DataBETA

Direct determination of cosmic string loop density from simulations

Dec 20, 2019

5 pages

Published in:

Phys.Rev.D 101 (2020) 10, 103018

Published: May 15, 2020

e-Print:

1912.10017 [astro-ph.CO]

DOI:

10.1103/PhysRevD.101.103018

View in:

ADS Abstract Service

reference search37 citations

Citations per year

Abstract: (APS)

We determine the distribution of cosmic string loops directly from simulations, rather than determining the loop production function and inferring the loop distribution from that. For a wide range of loop lengths, the results agree well with a power law exponent -2.5 in the radiation era and -2 in the matter era, the universal result for any loop production function that does not diverge at small scales. Our results extend those of Ringeval et al. [Cosmological evolution of cosmic string loops, J. Cosmol. Astropart. Phys. 02 (2007) 023.10.1088/1475-7516/2007/02/023]: we are able to run for 15 times longer in conformal time and simulate a volume 300–2400 times larger. At the times they reached, our simulation is in general agreement with the more negative exponents they found, -2.6 and -2.4. However, our simulations show that this was a transient regime; at later times, the exponents decline to the values above. This provides further evidence against models with a rapid divergence of the loop density at small scales, such as “model 3” used to analyze LIGO data and predict LISA sensitivity.

Note:

10 pages, 3 figures

Astrophysics and astroparticle physics
time: conformal
LISA: sensitivity
cosmic string
density
LIGO
numerical calculations
numerical methods

References(24)

Figures(3)

[1]

Topology of Cosmic Domains and Strings

T.W.B. Kibble
(
- Imperial Coll., London
)

- J.Phys.A 9 (1976) 1387-1398
•
DOI:
- 10.1088/0305-4470/9/8/029

[2]

Cosmic Strings and Other Topological Defects

A. Vilenkin
,
E.P.S. Shellard

[3]

Formation and evolution of cosmic D strings

Gia Dvali
(
- New York U.
)
,
Alexander Vilenkin
(
- Tufts U., Inst. of Cosmology and
- Tufts U.
)

- JCAP 03 (2004) 010
•
e-Print:
- hep-th/0312007
•
DOI:
- 10.1088/1475-7516/2004/03/010

[4]

Cosmic F and D strings

Edmund J. Copeland
(
- Sussex U.
)
,
Robert C. Myers
(
- Perimeter Inst. Theor. Phys. and
- Waterloo U.
)
,
Joseph Polchinski
(
- Santa Barbara, KITP
)

- JHEP 06 (2004) 013
•
e-Print:
- hep-th/0312067
•
DOI:
- 10.1088/1126-6708/2004/06/013

[5]

Gravitational radiation from cosmic (super)strings: Bursts, stochastic background, and observational windows

- Phys.Rev.D 71 (2005) 063510
•
e-Print:
- hep-th/0410222
•
DOI:
- 10.1103/PhysRevD.71.063510

[6]

Gravitational wave bursts from cosmic (super)strings: Quantitative analysis and constraints

et al.

- Phys.Rev.D 73 (2006) 105001
•
e-Print:
- gr-qc/0603115
•
DOI:
- 10.1103/PhysRevD.73.105001

[7]

Constraints on cosmic string tension imposed by the limit on the stochastic gravitational wave background from the European Pulsar Timing Array

- Phys.Rev.D 85 (2012) 122003
•
e-Print:
- 1201.2419
•
DOI:
- 10.1103/PhysRevD.85.122003

[8]

Cosmological Backgrounds of Gravitational Waves and eLISA/NGO: Phase Transitions, Cosmic Strings and Other Sources

Pierre Binetruy
(
- APC, Paris
)
,
Alejandro Bohe
(
- Paris, Inst. Astrophys.
)
,
Chiara Caprini
(
- Saclay, SPhT
)
,
Jean-Francois Dufaux
(
- APC, Paris
)

- JCAP 06 (2012) 027
•
e-Print:
- 1201.0983
•
DOI:
- 10.1088/1475-7516/2012/06/027

[9]

Probing Cosmic Superstrings with Gravitational Waves

L. Sousa
(
- Porto U. and
- Porto U., Astron. Dept.
)
,
P.P. Avelino
(
- Porto U. and
- Porto U., Astron. Dept.
)

- Phys.Rev.D 94 (2016) 6, 063529
•
e-Print:
- 1606.05585
•
DOI:
- 10.1103/PhysRevD.94.063529

[10]

Forecast constraints on cosmic string parameters from gravitational wave direct detection experiments

Sachiko Kuroyanagi
(
- Tokyo U.
)
,
Koichi Miyamoto
(
- Tokyo U.
)
,
Toyokazu Sekiguchi
(
- Nagoya U.
)
,
Keitaro Takahashi
(
- Kumamoto U.
)
,
Joseph Silk
(
- Paris, Inst. Astrophys. and
- Oxford U.
)

- Phys.Rev.D 86 (2012) 023503
•
e-Print:
- 1202.3032
•
DOI:
- 10.1103/PhysRevD.86.023503

[11]

Stochastic gravitational wave background from smoothed cosmic string loops

- Phys.Rev.D 96 (2017) 10, 104046
•
e-Print:
- 1709.02693
•
DOI:
- 10.1103/PhysRevD.96.104046

[12]

Constraints on cosmic strings using data from the first Advanced LIGO observing run

LIGO Scientific and
Virgo

Collaborations

•

B.P. Abbott
(
- LIGO Lab., Caltech
)

et al.

- Phys.Rev.D 97 (2018) 10, 102002
•
e-Print:
- 1712.01168
•
DOI:
- 10.1103/PhysRevD.97.102002

[13]

Probing the gravitational wave background from cosmic strings with LISA

Pierre Auclair
(
- APC, Paris
)
,
Jose J. Blanco-Pillado
(
- IKERBASQUE, Bilbao and
- Basque U., Bilbao
)
,
Daniel G. Figueroa
(
- EPFL, Lausanne, LPPC and
- Valencia U., IFIC
)
,
Alexander C. Jenkins
(
- King's Coll. London
)
,
Marek Lewicki
(
- King's Coll. London and
- Warsaw U.
)

et al.

- JCAP 04 (2020) 034
•
e-Print:
- 1909.00819
•
DOI:
- 10.1088/1475-7516/2020/04/034

[14]

New limits on cosmic strings from gravitational wave observation

- Phys.Lett.B 778 (2018) 392-396
•
e-Print:
- 1709.02434
•
DOI:
- 10.1016/j.physletb.2018.01.050

[15]

Evolution of Cosmic String Networks

Andreas Albrecht
(
- Fermilab
)
,
Neil Turok
(
- Princeton U.
)

- Phys.Rev.D 40 (1989) 973-1001
•
DOI:
- 10.1103/PhysRevD.40.973

[16]

Cosmological evolution of cosmic string loops

- JCAP 02 (2007) 023
•
e-Print:
- astro-ph/0511646
•
DOI:
- 10.1088/1475-7516/2007/02/023

[17]

Scaling of cosmic string loops

- Phys.Rev.D 74 (2006) 063527
•
e-Print:
- gr-qc/0511159
•
DOI:
- 10.1103/PhysRevD.74.063527

[18]

Cosmic string loops in the expanding Universe

- Phys.Rev.D 75 (2007) 063521
•
e-Print:
- astro-ph/0610419
•
DOI:
- 10.1103/PhysRevD.75.063521

[19]

Large parallel cosmic string simulations: New results on loop production

- Phys.Rev.D 83 (2011) 083514
•
e-Print:
- 1101.5173
•
DOI:
- 10.1103/PhysRevD.83.083514

[20]

The number of cosmic string loops

- Phys.Rev.D 89 (2014) 2, 023512
•
e-Print:
- 1309.6637
•
DOI:
- 10.1103/PhysRevD.89.023512

[21]

Energy-conservation constraints on cosmic string loop production and distribution functions

Jose J. Blanco-Pillado
(
- IKERBASQUE, Bilbao and
- Basque U., Bilbao
)
,
Ken D. Olum
(
- Tufts U. (main)
)
,
Jeremy M. Wachter
(
- Basque U., Bilbao
)

- Phys.Rev.D 100 (2019) 12, 123526
•
e-Print:
- 1907.09373
•
DOI:
- 10.1103/PhysRevD.100.123526

[22]

Formation and Evolution of Cosmic Strings

Tanmay Vachaspati
(
- Tufts U.
)
,
Alexander Vilenkin
(
- Tufts U.
)

- Phys.Rev.D 30 (1984) 2036
•
DOI:
- 10.1103/PhysRevD.30.2036

[23]

Cosmic string loop distribution on all length scales and at any redshift

Larissa Lorenz
(
- Louvain U., CP3
)
,
Christophe Ringeval
(
- Louvain U., CP3
)
,
Mairi Sakellariadou
(
- King's Coll. London
)

- JCAP 10 (2010) 003
•
e-Print:
- 1006.0931
•
DOI:
- 10.1088/1475-7516/2010/10/003

[24]

Cosmic string loop production functions

Pierre Auclair
(
- APC, Paris
)
,
Christophe Ringeval
(
- Louvain U.
)
,
Mairi Sakellariadou
(
- King's Coll. London
)
,
Daniele Steer
(
- APC, Paris
)

- JCAP 06 (2019) 015
•
e-Print:
- 1903.06685
•
DOI:
- 10.1088/1475-7516/2019/06/015