scholarly journals Topics in conformal field theory and string theory

1990 ◽  
pp. 49-94
Author(s):  
L. Alvarez-Gaumé
Keyword(s):  
Field Theory ◽  
Conformal Field Theory ◽  
String Theory ◽  
Conformal Field

ON THE INTERPOLATING SOLUTIONS OF STRING IN DIFFERENT BACKGROUNDS

1992 ◽  
Vol 07 (15) ◽  
pp. 1361-1366 ◽  
Author(s):  
SUDIPTA MUKHERJI
Keyword(s):  
Field Theory ◽  
Conformal Field Theory ◽  
String Theory ◽  
Central Charge ◽  
Space Time ◽  
Time Dependent ◽  
Target Space ◽  
Conformal Field ◽  
Β Function ◽  
Time Dependent Solution

We analyze the β-function equations for string theory in the case when the target space has one space-like (or time-like) direction and the rest is some conformal field theory (CFT) with appropriate central charge and has one nearly marginal operator. We show there always exists a space-(time) dependent solution which interpolates between the original background and the background where CFT is replaced by a new conformal field theory, obtained by perturbing CPT by the nearly marginal operator.

scholarly journals SOME ISSUES IN CONFORMAL FIELD THEORY WITH BOUNDARIES AND CROSSCAPS

2004 ◽  
Vol 19 (supp02) ◽  
pp. 174-178
Author(s):  
B. GATO-RIVERA
Keyword(s):  
Field Theory ◽  
Conformal Field Theory ◽  
String Theory ◽  
Open String ◽  
Perturbative Expansion ◽  
Conformal Field ◽  
The Subject

This is a brief introduction to the subject of Conformal Field Theory on surfaces with boundaries and crosscaps, which describes the perturbative expansion of open string theory.

The search for higher symmetry in string theory

1989 ◽  
Vol 329 (1605) ◽  
pp. 349-357 ◽  
Keyword(s):  
Field Theory ◽  
Conformal Field Theory ◽  
String Theory ◽  
Vantage Point ◽  
Higher Symmetry ◽  
Conformal Field ◽  
Soluble Model ◽  
Higher Dimensional ◽  
Dimensional Gravity

Some remarks are made about the nature and role of the search for higher symmetry in string theory. These symmetries are most likely to be uncovered in a mysterious ‘unbroken phase’, for which (2+ 1)-dimensional gravity provides an interesting and soluble model. New insights about conformal field theory, in which one gets ‘out of flatland’ to see a wider symmetry from a higher-dimensional vantage point, may offer clues to the unbroken phase of string theory

scholarly journals Phenomenology and conformal field theory or can string theory predict the weak mixing angle?

1988 ◽  
Vol 299 (3) ◽  
pp. 613-626 ◽  
Author(s):  
Thomas Banks ◽  
Lance J. Dixon ◽  
Daniel Friedan ◽  
Emil Martinec
Keyword(s):  
Field Theory ◽  
Conformal Field Theory ◽  
String Theory ◽  
Weak Mixing Angle ◽  
Weak Mixing ◽  
Mixing Angle ◽  
Conformal Field

scholarly journals A perturbative CFT dual for pure NS-NS AdS3 strings

2022 ◽  
Author(s):  
Lorenz Valentin Eberhardt
Keyword(s):  
Field Theory ◽  
Perturbation Theory ◽  
Conformal Field Theory ◽  
String Theory ◽  
Long Strings ◽  
Ample Evidence ◽  
Conformal Field ◽  
Large N ◽  
Linear Dilaton

Abstract We construct a conformal field theory dual to string theory on AdS3 with pure NS-NS flux. It is given by a symmetric orbifold of a linear dilaton theory deformed by a marginal operator from the twist-2 sector. We compute two- and three-point functions on the CFT side to 4th order in conformal perturbation theory at large N. They agree with the string computation at genus 0, thus providing ample evidence for a duality. We also show that the full spectra of both short and long strings on the CFT and the string side match. The duality should be understood as perturbative in 1/N.

Introduction to string theory and conformal field theory

2010 ◽  
Vol 73 (5) ◽  
pp. 848-877 ◽  
Author(s):  
A. A. Belavin ◽  
G. M. Tarnopolsky
Keyword(s):  
Field Theory ◽  
Conformal Field Theory ◽  
String Theory ◽  
Conformal Field

scholarly journals Notes on Curtright–Zachos Deformations of osp(1,2) and Super Virasoro Algebras

1997 ◽  
Vol 12 (32) ◽  
pp. 5867-5883
Author(s):  
Naruhiko Aizawa ◽  
Tatsuo Kobayashi ◽  
Haru-Tada Sato
Keyword(s):  
Field Theory ◽  
Conformal Field Theory ◽  
String Theory ◽  
Virasoro Algebra ◽  
Two Dimensional ◽  
Supersymmetric Extension ◽  
Conformal Field ◽  
Deformed Algebra ◽  
Deformed Virasoro Algebra

Based on the quantum superspace construction of q-deformed algebra, we discuss a supersymmetric extension of the deformed Virasoro algebra, which is a subset of the q–W∞ algebra which recently appeared in the context of two-dimensional string theory. We analyze two types of deformed super Virasoro algebra as well as their osp(1,2) subalgebras. Applying our quantum superspace structure to conformal field theory, we find the same type of deformation of affine sl(2) algebra.

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