The Feynman iε in string theory

被引：0

作者：

Edward Witten

机构：

[1] Institute for Advanced Study,School of Natural Sciences

来源：

Journal of High Energy Physics | / 2015卷

关键词：

Superstrings and Heterotic Strings; Bosonic Strings;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

The Feynman iε is an important ingredient in defining perturbative scattering amplitudes in field theory. Here we describe its analog in string theory. Roughly one takes the string worldsheet to have Lorentz signature when a string is going on-shell although it has Euclidean signature generically. (This article is based on a talk presented at the Zuminofest in Berkeley, California, May 2-4, 2013.)

引用

共 30 条

[1]

Berera A(1994)Unitary string amplitudes Nucl. Phys. B 411 157-undefined

[2]

Brink L(1973)Recalculation of the the unitary single planar dual loop in the critical dimension of space time Nucl. Phys. B 58 237-undefined

[3]

Olive DI(1989)A Finite String Loop Amplitude in a Finite Form Nucl. Phys. B 328 510-undefined

[4]

Amano K(1991)A Finite representation for a superstring scattering amplitude and its low-energy limit Nucl. Phys. B 363 527-undefined

[5]

Montag JL(1995)The Box graph in superstring theory Nucl. Phys. B 440 24-undefined

[6]

Weisberger WI(1890)Zur theorie der Eulerschen integrale Math. Ann. 35 495-undefined

[7]

D’Hoker E(2006)A Contour Integral Representation For The Dual Five-Point Function And A Symmetry Of The Genus Four Surface in ℝ J. Phys. A 39 2509-undefined

[8]

Phong DH(1986)A relation between tree amplitudes of closed and open strings Nucl. Phys. B 269 1-undefined

[9]

Pochhammer LA(2013)Multi-loop open string amplitudes and their field theory limit JHEP 09 081-undefined

[10]

Hanson AJ(1986)Noncommutative geometry and string field theory Nucl. Phys. B 268 253-undefined

← 1 2 3 →