Nonlinear mode-coupling of large-scale structure: Validity of perturbation theory calculation

Atsushi Taruya; Takahiro Nishimichu; Francis Bernardeau

Nonlinear mode-coupling of large-scale structure: Validity of perturbation theory calculation

Atsushi Taruya
, Takahiro Nishimichu
, Francis Bernardeau

YITP
Institut d’Astrophysique de Paris

Résultats de recherche: Contribution à une conférence › Papier › Revue par des pairs

Résumé

Measurement of mode-coupling kernel of large-scale structure (LSS): K(k,^q) qδP_n1(k)/ΔP₀ (q) Unlike the standard PT results, • There appears UV suppression in N-body simulation at k<<q • Discrepancy can be seen even at low-k, where standard PT can reproduce the N-body result quite well Physical origin A connection with small-scale physics (formation and merging processes of dark matter halos) Implication Check the validity and limitation for EFTofLSS → A step toward an improved prescription of LSS.

langue originale	Anglais
Pages	150-157
Nombre de pages	8
état	Publié - 1 janv. 2014
Modification externe	Oui
Evénement	24rd Workshop on General Relativity and Gravitation in Japan, JGRG 2014 - Chiba, Japon Durée: 10 nov. 2014 → 14 nov. 2014

Une conférence

Une conférence	24rd Workshop on General Relativity and Gravitation in Japan, JGRG 2014
Pays/Territoire	Japon
La ville	Chiba
période	10/11/14 → 14/11/14

Contient cette citation

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Nonlinear mode-coupling of large-scale structure: Validity of perturbation theory calculation. / Taruya, Atsushi; Nishimichu, Takahiro; Bernardeau, Francis.
2014. 150-157 Papier présenté � 24rd Workshop on General Relativity and Gravitation in Japan, JGRG 2014, Chiba, Japon.

Résultats de recherche: Contribution à une conférence › Papier › Revue par des pairs

TY - CONF

T1 - Nonlinear mode-coupling of large-scale structure

T2 - 24rd Workshop on General Relativity and Gravitation in Japan, JGRG 2014

AU - Taruya, Atsushi

AU - Nishimichu, Takahiro

AU - Bernardeau, Francis

PY - 2014/1/1

Y1 - 2014/1/1

N2 - Measurement of mode-coupling kernel of large-scale structure (LSS): K(k,q) qδPn1(k)/ΔP0 (q) Unlike the standard PT results, • There appears UV suppression in N-body simulation at k<

AB - Measurement of mode-coupling kernel of large-scale structure (LSS): K(k,q) qδPn1(k)/ΔP0 (q) Unlike the standard PT results, • There appears UV suppression in N-body simulation at k<

M3 - Paper

AN - SCOPUS:85092175485

SP - 150

EP - 157

Y2 - 10 November 2014 through 14 November 2014

ER -

Nonlinear mode-coupling of large-scale structure: Validity of perturbation theory calculation

Résumé

Une conférence

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