BCFT moduli space in level truncation

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F16%3A00471780" target="_blank" >RIV/68378271:_____/16:00471780 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1007/JHEP04(2016)057" target="_blank" >http://dx.doi.org/10.1007/JHEP04(2016)057</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1007/JHEP04(2016)057" target="_blank" >10.1007/JHEP04(2016)057</a>

Result language
angličtina
Original language name
BCFT moduli space in level truncation
Original language description
We propose a new non-perturbative method to search for marginal deformations in level truncated open string field theory. Instead of studying the flatness of the effective potential for the marginal field (which is not expected to give a one-to-one parametrization of the BCFT moduli space), we identify a new non-universal branch of the tachyon potential which, from known analytic examples, is expected to parametrize the marginal flow in a much larger region of the BCFT moduli space. By a level 18 computation in Siegel gauge we find an increasingly flat effective potential in the non-universal sector, connected to the perturbative vacuum and we confirm that the coefficient of the marginal field (ASFT) has a maximum compatible with the value where the solutions stop existing in the standard Sen-Zwiebach approach.
Czech name
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Czech description
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Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
BF - Elementary particle theory and high energy physics
OECD FORD branch
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Project
<a href="/en/project/GA14-31689S" target="_blank" >GA14-31689S: Quantum gravity and string theory</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2016
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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