The role of quantized 2-dim. gravity string theory

Journal Article · Thu May 10 00:00:00 EDT 1990 · Modern Physics Letters A; (USA)

DOI:https://doi.org/10.1142/S0217732390000950· OSTI ID:6473837

Dhar, A; Wadia, S R ^[1]; Jayaraman, T; Narain, K S ^[2]

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1. Tata Inst. of Fundamental Research, Bombay (India)
2. International Centre for Theoretical Physics, Trieste (Italy)

The authors present a formulation of string theory in which the 2-dim. metric is exactly quantized in the framework of SL(2,R) current algebra. In this way they replace the conformal invariance prescription by the principle of reparametrization invariance. The theory is formulated in arbitrary number of dimensions since the usual restriction of fixed matter central charge is not present. As a concrete illustration of their approach, the authors show that in 25 Euclidean dimensions the usual amplitudes of the 26-dimensional bosonic string theory arise. The extra time-like dimension emerges as a mode of the 2-dim. metric and the gravitational dressing of vertex operators gives rise to their time dependence.

• OSTI ID: 6473837
• Journal Information: Modern Physics Letters A; (USA), Vol. 5:11; ISSN 0217-7323
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
QUANTUM FIELD THEORY
QUANTUM GRAVITY
TWO-DIMENSIONAL CALCULATIONS
STRING MODELS
BOSONS
GRAVITATIONAL FIELDS
INVARIANCE PRINCIPLES
VERTEX FUNCTIONS
COMPOSITE MODELS
EXTENDED PARTICLE MODEL
FIELD THEORIES
FUNCTIONS
MATHEMATICAL MODELS
PARTICLE MODELS
QUARK MODEL
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