QUANTIZATION OF THE LIOUVILLE MODE AND STRING THEORY
1989 ◽
Vol 04
(11)
◽
pp. 1033-1041
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Keyword(s):
We discuss the space-time interpretation of bosonic string theories, which involve d scalar fields coupled to gravity in two dimensions, with a proper quantization of the world-sheet metric. We show that for d>25, the theory cannot describe string modes consistently coupled to each other. For d=25 this is possible; however, in this case the Liouville mode acts as an extra timelike variable and one really has a string moving in 26-dimensional space-time with a Lorentzian signature. By analyzing such a string theory in background fields, we show that the d=25 theory possesses the full 26-dimensional general covariance.
Keyword(s):
1992 ◽
Vol 07
(39)
◽
pp. 3677-3688
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2004 ◽
Vol 19
(12)
◽
pp. 1923-1959
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Keyword(s):
1990 ◽
Vol 02
(03)
◽
pp. 355-398
◽
Keyword(s):
1987 ◽
Vol 72
(3)
◽
pp. 978-986
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Keyword(s):