Boundary modes in string field theory
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F25%3A00636834" target="_blank" >RIV/68378271:_____/25:00636834 - isvavai.cz</a>
Result on the web
<a href="https://hdl.handle.net/11104/0375690" target="_blank" >https://hdl.handle.net/11104/0375690</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1007/JHEP06(2025)108" target="_blank" >10.1007/JHEP06(2025)108</a>
Alternative languages
Result language
angličtina
Original language name
Boundary modes in string field theory
Original language description
We discuss the construction of boundary contributions to free string field theory actions in the context of the bosonic string. We show that it is generally possible to obtain a well-defined variational principle by adding a simple boundary term (which only depends on the value of the bulk fields at the boundary) to the original bulk action. However, it is in general not possible to do this in a gauge-invariant way unless suitable boundary degrees of freedom are added. We explicitly construct such boundary contributions for the massless level of both the open and the closed SFT, as well as for the tensionless limit of the full string field theory. Our results reproduce linearized general relativity with the Gibbons-Hawking-York term and provide similar gauge-invariant actions for the infinite tower of massless higher-spin gauge theories for all Regge trajectories. By writing down a gauge-invariant action for the first massive level of the open string, we provide evidence that an analogous construction should be possible for the full tensile string field theory.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10303 - Particles and field physics
Result continuities
Project
<a href="/en/project/EH22_008%2F0004632" target="_blank" >EH22_008/0004632: Fundamental constituents of matter through frontier technologies</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2025
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Journal of High Energy Physics
ISSN
1029-8479
e-ISSN
1029-8479
Volume of the periodical
2025
Issue of the periodical within the volume
6
Country of publishing house
DE - GERMANY
Number of pages
50
Pages from-to
108
UT code for WoS article
001507677500006
EID of the result in the Scopus database
2-s2.0-105008197086