TIME GAUGE-FIXING AND HILBERT-SPACE IN QUANTUM STRING COSMOLOGY

Authors
CAVAGLIA M DEALFARO V
Citation
M. Cavaglia et V. Dealfaro, TIME GAUGE-FIXING AND HILBERT-SPACE IN QUANTUM STRING COSMOLOGY, General relativity and gravitation, 29(6), 1997, pp. 773-787
Citations number
15
Categorie Soggetti
Physics
Journal title
General relativity and gravitation → ACNP
ISSN journal
00017701
Volume
29
Issue
6
Year of publication
1997
Pages
773 - 787
Database
ISI
SICI code
0001-7701(1997)29:6<773:TGAHIQ>2.0.ZU;2-M
Abstract
Recently the low-energy effective string theory has been used by Gaspe rini and Veneziano to elaborate a very interesting scenario for the ea rly history of the universe (''birth of the universe as quantum scatte ring''). Here we investigate the gauge fixing and the problem of the d efinition of a global time parameter for the quantum form of the model , and obtain the positive norm Hilbert space of states.