Closed String Field Theory on a Double Layer

Lee, Taejin

doi:10.22128/jhap.2023.671.1048

	Closed String Field Theory on a Double Layer
Journal of Holography Applications in Physics
دوره 3، شماره 2، شهریور 2023، صفحه 31-40 اصل مقاله (1.63 M)
نوع مقاله: Regular article
شناسه دیجیتال (DOI): 10.22128/jhap.2023.671.1048
نویسنده
Taejin Lee^*
Department of Physics, Kangwon National University, Chuncheon, 24341, Korea
چکیده
The holography principle relates the quantum gravity in the bulk, described by closed string, the gauge theory, described by open string on the boundary with certain asymptotic conditions. Thus, it is important to understand intimate relations between open string theory and closed string theory: In the present work we propose a cubic closed string field theory, introducing a double layer to describe the closed string world-sheet as an extension of the open string world-sheet of the Witten's cubic open string. We mapped the closed string world-sheet onto the complex plane, of which the lower half plane is completely covered by the extended part of the string world-sheet. Using the Green's function on the complex plane, evaluated the Polyakov string path integral, from which we extracted the Neumann functions and the vertex operators.
کلیدواژه‌ها
String field theory؛ Vertex operators؛ Neumann functions

اصل مقاله
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مراجع
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Closed String Field Theory on a Double Layer

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