Transitions of orbifold vacua

Abstract We study the global structure of vacua of heterotic strings compactified on orbifolds T 4 /ℤ N (N = 2, 3) in the presence of heterotic 5-branes. Gauge symmetry breaking associated with orbifold is described by instantons in the field theory. There is phase transition between small (zero siz...

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Main Authors: Kang-Sin Choi, Tatsuo Kobayashi
Format: Article
Language:English
Published: SpringerOpen 2019-07-01
Series:Journal of High Energy Physics
Subjects:
Online Access:http://link.springer.com/article/10.1007/JHEP07(2019)111
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author Kang-Sin Choi
Tatsuo Kobayashi
author_facet Kang-Sin Choi
Tatsuo Kobayashi
author_sort Kang-Sin Choi
collection DOAJ
description Abstract We study the global structure of vacua of heterotic strings compactified on orbifolds T 4 /ℤ N (N = 2, 3) in the presence of heterotic 5-branes. Gauge symmetry breaking associated with orbifold is described by instantons in the field theory. There is phase transition between small (zero size limit) instantons and heterotic 5-branes. This mechanism provides top-down, stringy account to the spectrum and modular invariance condition of non-perturbative vacua with 5-branes. Also it takes us from one vacuum to another by emitting and absorbing instantons. This means that many vacua with different gauge theories are in fact connected and are inherited from perturbative vacua. It follows that there is also transition of twisted instantons at the fixed points. Thus we can understand transitions among perturbative vacua as well.
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spelling doaj.art-52c04bd8d4114ab49f37d42d0c01023a2022-12-21T18:51:24ZengSpringerOpenJournal of High Energy Physics1029-84792019-07-012019713310.1007/JHEP07(2019)111Transitions of orbifold vacuaKang-Sin Choi0Tatsuo Kobayashi1Scranton Honors Program, Ewha Womans UniversityDepartment of Physics, Hokkaido UniversityAbstract We study the global structure of vacua of heterotic strings compactified on orbifolds T 4 /ℤ N (N = 2, 3) in the presence of heterotic 5-branes. Gauge symmetry breaking associated with orbifold is described by instantons in the field theory. There is phase transition between small (zero size limit) instantons and heterotic 5-branes. This mechanism provides top-down, stringy account to the spectrum and modular invariance condition of non-perturbative vacua with 5-branes. Also it takes us from one vacuum to another by emitting and absorbing instantons. This means that many vacua with different gauge theories are in fact connected and are inherited from perturbative vacua. It follows that there is also transition of twisted instantons at the fixed points. Thus we can understand transitions among perturbative vacua as well.http://link.springer.com/article/10.1007/JHEP07(2019)111Superstring VacuaBrane Dynamics in Gauge TheoriesSuperstrings and Heterotic Strings
spellingShingle Kang-Sin Choi
Tatsuo Kobayashi
Transitions of orbifold vacua
Journal of High Energy Physics
Superstring Vacua
Brane Dynamics in Gauge Theories
Superstrings and Heterotic Strings
title Transitions of orbifold vacua
title_full Transitions of orbifold vacua
title_fullStr Transitions of orbifold vacua
title_full_unstemmed Transitions of orbifold vacua
title_short Transitions of orbifold vacua
title_sort transitions of orbifold vacua
topic Superstring Vacua
Brane Dynamics in Gauge Theories
Superstrings and Heterotic Strings
url http://link.springer.com/article/10.1007/JHEP07(2019)111
work_keys_str_mv AT kangsinchoi transitionsoforbifoldvacua
AT tatsuokobayashi transitionsoforbifoldvacua