NL repository
menu
검색
Library
Browse
Communities & Collections
By Date
Authors
Titles
Subject
My Repository
My Account
Receive email updates
Edit Profile
DSpace at EWHA
자연과학대학
수학전공
Journal papers
View : 669 Download: 201
Dynamics of stringy congruence in the early universe
Title
Dynamics of stringy congruence in the early universe
Authors
Cho Y.S.
;
Hong S.-T.
Ewha Authors
조용승
;
홍순태
SCOPUS Author ID
조용승
; 홍순태
Issue Date
2011
Journal Title
Physical Review D - Particles, Fields, Gravitation and Cosmology
ISSN
1550-7998
Citation
Physical Review D - Particles, Fields, Gravitation and Cosmology vol. 83, no. 10
Indexed
SCIE; SCOPUS
Document Type
Article
Abstract
We study twist and shear aspects of the stingy geodesic surface congruence. Under some natural conditions we derive the equations of the twist and shear in terms of the expansion of the Universe. We observe in this higher dimensional cosmology that, as the early universe evolves with expansion rate, the twist of the stringy congruence decreases exponentially and the initial twist value should be large enough to sustain the rotations of the ensuing universe, while the effects of the shear are negligible to produce the isotropic and homogeneous universe. We also investigate the twist and shear of the geodesic surface congruence of the null strings. © 2011 American Physical Society.
DOI
10.1103/PhysRevD.83.104040
Appears in Collections:
자연과학대학
>
수학전공
>
Journal papers
Files in This Item:
001.pdf
(134.45 kB)
Download
Export
RIS (EndNote)
XLS (Excel)
XML
Show full item record
Find@EWHA
트윗하기
BROWSE
Communities & Collections
By Date
Authors
Titles
Subject