Surface defects from fractional branes. Part II

S. K. Ashok; M. Billò; M. Frau; A. Lerda; S. Mahato

doi:10.1007/JHEP08(2020)058

Surface defects from fractional branes. Part II

S. K. Ashok, M. Billò, M. Frau, A. Lerda, S. Mahato

Department of Science and Technological Innovation

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

Abstract

A generic half-BPS surface defect of N = 4 supersymmetric U(N) Yang- Mills theory is described by a partition of N = n₁ +.. + n_M and a set of 4M continuous parameters. We show that such a defect can be realized by n_I stacks of fractional D3-branes in Type II B string theory on a ℤ_M orbifold background in which the brane world-volume is partially extended along the orbifold directions. In this set up we show that the 4M continuous parameters correspond to constant background values of certain twisted closed string scalars of the orbifold. These results extend and generalize what we have presented for the simple defects in a previous paper.

Original language	English
Article number	58
Journal	Journal of High Energy Physics
Volume	2020
Issue number	8
DOIs	https://doi.org/10.1007/JHEP08(2020)058
Publication status	Published - 1 Aug 2020

Keywords

D-branes
Duality in Gauge Field Theories
Extended Supersymmetry
Nonperturbative Effects

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10.1007/JHEP08(2020)058

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abstract = "A generic half-BPS surface defect of N = 4 supersymmetric U(N) Yang- Mills theory is described by a partition of N = n1 +.. + nM and a set of 4M continuous parameters. We show that such a defect can be realized by nI stacks of fractional D3-branes in Type II B string theory on a ℤM orbifold background in which the brane world-volume is partially extended along the orbifold directions. In this set up we show that the 4M continuous parameters correspond to constant background values of certain twisted closed string scalars of the orbifold. These results extend and generalize what we have presented for the simple defects in a previous paper.",

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AU - Ashok, S. K.

AU - Billò, M.

AU - Frau, M.

AU - Lerda, A.

AU - Mahato, S.

PY - 2020/8/1

Y1 - 2020/8/1

N2 - A generic half-BPS surface defect of N = 4 supersymmetric U(N) Yang- Mills theory is described by a partition of N = n1 +.. + nM and a set of 4M continuous parameters. We show that such a defect can be realized by nI stacks of fractional D3-branes in Type II B string theory on a ℤM orbifold background in which the brane world-volume is partially extended along the orbifold directions. In this set up we show that the 4M continuous parameters correspond to constant background values of certain twisted closed string scalars of the orbifold. These results extend and generalize what we have presented for the simple defects in a previous paper.

AB - A generic half-BPS surface defect of N = 4 supersymmetric U(N) Yang- Mills theory is described by a partition of N = n1 +.. + nM and a set of 4M continuous parameters. We show that such a defect can be realized by nI stacks of fractional D3-branes in Type II B string theory on a ℤM orbifold background in which the brane world-volume is partially extended along the orbifold directions. In this set up we show that the 4M continuous parameters correspond to constant background values of certain twisted closed string scalars of the orbifold. These results extend and generalize what we have presented for the simple defects in a previous paper.

KW - D-branes

KW - Duality in Gauge Field Theories

KW - Extended Supersymmetry

KW - Nonperturbative Effects

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VL - 2020

JO - Journal of High Energy Physics

JF - Journal of High Energy Physics

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M1 - 58

ER -

Surface defects from fractional branes. Part II

Abstract

Keywords

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