On first-order formalism in string theory

被引：27

作者：

Losev, AS

Marshakov, A

Zeitlin, AM ^{[1
]}

机构：

[1] PN Lebedev Phys Inst, Dept Theoret Phys, Moscow 119991, Russia

[2] Inst Theoret & Expt Phys, Moscow 117259, Russia

[3] VA Steklov Math Inst, St Petersburg Dept, St Petersburg 191023, Russia

来源：

PHYSICS LETTERS B | 2006年 / 633卷 / 2-3期

基金：

俄罗斯基础研究基金会;

关键词：

string theory; conformal field theory; sigma model;

D O I：

10.1016/j.physletb.2005.12.010

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We consider the first-order formalism in string theory, providing a new off-shell description of the non-trivial backgrounds around an "infinite metric". The OPE of the vertex operators, corresponding to the background fields in some "twistor representation", and conditions of conformal invariance results in the quadratic equation for the background fields, which appears to be equivalent to the Einstein equations with a Kalb-Ramond B-field and a dilaton. Using a new representation for the Einstein equations with B-field and dilaton we find a new class of solutions including the plane waves for metric (graviton) and the B-field. We discuss the properties of these background equations and main features of the BRST operator in this approach. (c) 2005 Elsevier B.V. All rights reserved.

引用

页码：375 / 381

页数：7

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