Stringy tachyonic instabilities of non-supersymmetric Ricci flat backgrounds
Stringy tachyonic instabilities of non-supersymmetric Ricci flat backgrounds
Superstring/M-theory compactified on compact Ricci flat manifolds have recently been conjectured to exhibit instabilities whenever the metrics do not have special holonomy. We use worldsheet conformal field theory to investigate instabilities of Type II superstring theories on compact, Ricci flat, spin 3-manifolds including a worldsheet description of their spin structures. The instabilities are signalled by the appearance of stringy tachyons at small radius and a negative (1-loop) vacuum energy density at large radius. We briefly discuss the extension to higher dimensions.
Acharya, Bobby Samir
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Aldazabal, Gerardo
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Andrés, Eduardo
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Font, Anamaría
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Narain, Kumar
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Zadeh, Ida G.
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2 April 2021
Acharya, Bobby Samir
43a10a54-46c5-4c09-a41b-d40acd5850f0
Aldazabal, Gerardo
e0e883f0-f851-4ecc-b70e-88d23c9758c3
Andrés, Eduardo
984d6ee9-af2f-4d2f-b748-45f3550bee5c
Font, Anamaría
49571756-e269-4129-890e-d2c693f88241
Narain, Kumar
e168a4f2-844e-45c1-b220-ae9759de458b
Zadeh, Ida G.
f1a525ce-9b07-456b-a4f3-435434f833ae
Acharya, Bobby Samir, Aldazabal, Gerardo, Andrés, Eduardo, Font, Anamaría, Narain, Kumar and Zadeh, Ida G.
(2021)
Stringy tachyonic instabilities of non-supersymmetric Ricci flat backgrounds.
JHEP, 2021, [26].
(doi:10.1007/JHEP04(2021)026).
Abstract
Superstring/M-theory compactified on compact Ricci flat manifolds have recently been conjectured to exhibit instabilities whenever the metrics do not have special holonomy. We use worldsheet conformal field theory to investigate instabilities of Type II superstring theories on compact, Ricci flat, spin 3-manifolds including a worldsheet description of their spin structures. The instabilities are signalled by the appearance of stringy tachyons at small radius and a negative (1-loop) vacuum energy density at large radius. We briefly discuss the extension to higher dimensions.
Text
JHEP04(2021)026
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Accepted/In Press date: 21 February 2021
Published date: 2 April 2021
Identifiers
Local EPrints ID: 501691
URI: http://eprints.soton.ac.uk/id/eprint/501691
ISSN: 1126-6708
PURE UUID: 9663b01a-f9ca-4886-8347-775d1cf1c909
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Date deposited: 06 Jun 2025 16:32
Last modified: 22 Aug 2025 02:43
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Author:
Bobby Samir Acharya
Author:
Gerardo Aldazabal
Author:
Eduardo Andrés
Author:
Anamaría Font
Author:
Kumar Narain
Author:
Ida G. Zadeh
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