Strings on orbifold lines

Oren Bergman; Eric Gimon; Barak Kol

doi:10.1088/1126-6708/2001/05/019

Strings on orbifold lines

Oren Bergman^*, Eric Gimon, Barak Kol

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

11 Scopus citations

Abstract

The orbifold lines IIA/I₈ and IIB/I₈(-1)FL possess BPS discrete torsion variants which carry fundamental string (NSNS) charge. We show that these variants are actually classified by an integral electric field F from the twisted RR sector, and compute their tension and NSNS charge as a function of F. The analysis employs equivariant K-theory and the string creation phenomenon. The K-theory results demonstrate the corrections to cohomology in the case of torsion; it is found that 8 units of F are invisible at transverse infinity for IIA, and correspondingly 16 units for IIB.

Original language	American English
Pages (from-to)	XXIX-24
Journal	Journal of High Energy Physics
Volume	5
Issue number	5
DOIs	https://doi.org/10.1088/1126-6708/2001/05/019
State	Published - 2001
Externally published	Yes

Keywords

P-branes
Superstring vacua

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10.1088/1126-6708/2001/05/019

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title = "Strings on orbifold lines",

abstract = "The orbifold lines IIA/I8 and IIB/I8(-1)FL possess BPS discrete torsion variants which carry fundamental string (NSNS) charge. We show that these variants are actually classified by an integral electric field F from the twisted RR sector, and compute their tension and NSNS charge as a function of F. The analysis employs equivariant K-theory and the string creation phenomenon. The K-theory results demonstrate the corrections to cohomology in the case of torsion; it is found that 8 units of F are invisible at transverse infinity for IIA, and correspondingly 16 units for IIB.",

keywords = "P-branes, Superstring vacua",

author = "Oren Bergman and Eric Gimon and Barak Kol",

year = "2001",

doi = "10.1088/1126-6708/2001/05/019",

language = "American English",

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T1 - Strings on orbifold lines

AU - Bergman, Oren

AU - Gimon, Eric

AU - Kol, Barak

PY - 2001

Y1 - 2001

N2 - The orbifold lines IIA/I8 and IIB/I8(-1)FL possess BPS discrete torsion variants which carry fundamental string (NSNS) charge. We show that these variants are actually classified by an integral electric field F from the twisted RR sector, and compute their tension and NSNS charge as a function of F. The analysis employs equivariant K-theory and the string creation phenomenon. The K-theory results demonstrate the corrections to cohomology in the case of torsion; it is found that 8 units of F are invisible at transverse infinity for IIA, and correspondingly 16 units for IIB.

AB - The orbifold lines IIA/I8 and IIB/I8(-1)FL possess BPS discrete torsion variants which carry fundamental string (NSNS) charge. We show that these variants are actually classified by an integral electric field F from the twisted RR sector, and compute their tension and NSNS charge as a function of F. The analysis employs equivariant K-theory and the string creation phenomenon. The K-theory results demonstrate the corrections to cohomology in the case of torsion; it is found that 8 units of F are invisible at transverse infinity for IIA, and correspondingly 16 units for IIB.

KW - P-branes

KW - Superstring vacua

UR - http://www.scopus.com/inward/record.url?scp=33744752471&partnerID=8YFLogxK

U2 - 10.1088/1126-6708/2001/05/019

DO - 10.1088/1126-6708/2001/05/019

M3 - Article

AN - SCOPUS:33744752471

SN - 1029-8479

VL - 5

SP - XXIX-24

JO - Journal of High Energy Physics

JF - Journal of High Energy Physics

IS - 5

ER -

Strings on orbifold lines

Abstract

Keywords

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