TACHYONIC EXTENSION OF THE STRINGY NO-GO THEOREM

Authors
MAHAPATRA S MAHARANA K SINGH LP
Citation
S. Mahapatra et al., TACHYONIC EXTENSION OF THE STRINGY NO-GO THEOREM, Physical review. D. Particles and fields, 55(10), 1997, pp. 6600-6602
Citations number
20
Categorie Soggetti
Physics, Particles & Fields
Journal title
Physical review. D. Particles and fields → ACNP
ISSN journal
05562821
Volume
55
Issue
10
Year of publication
1997
Pages
6600 - 6602
Database
ISI
SICI code
0556-2821(1997)55:10<6600:TEOTSN>2.0.ZU;2-T
Abstract
We investigate the tachyon-dilaton-metric system to study the ''gracef ul exit'' problem in string theoretic inflation, where the tachyon pla ys the role of the scalar field. From the phase-space analysis, we fin d that the inflationary phase does not smoothly connect to a Friedmann -Robertson-Walker expanding universe, thereby providing a simple tachy onic extension of the recently proved stringy no-go theorem.