N $$ \mathcal{N} $$ = 2 heterotic strings revisited
Abstract We show that 1 + 1 dimensional vacua of the (0, 2) heterotic string have many properties in common with more recently studied physical systems. The free theory exhibits a symmetric product CFT structure. The single-string Hilbert space splits into sectors labeled by the string winding, w, t...
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| Format: | Article |
| Language: | English |
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SpringerOpen
2025-04-01
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| Series: | Journal of High Energy Physics |
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| Online Access: | https://doi.org/10.1007/JHEP04(2025)006 |
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| author | Amit Giveon Akikazu Hashimoto David Kutasov |
| author_facet | Amit Giveon Akikazu Hashimoto David Kutasov |
| author_sort | Amit Giveon |
| collection | DOAJ |
| description | Abstract We show that 1 + 1 dimensional vacua of the (0, 2) heterotic string have many properties in common with more recently studied physical systems. The free theory exhibits a symmetric product CFT structure. The single-string Hilbert space splits into sectors labeled by the string winding, w, that contain purely left-moving (for w > 0) and right-moving (for w < 0) excitations. These sectors exhibit infinite-dimensional left and right-moving symmetry algebras, respectively, with central extensions that depend on w. String interactions between left and right-movers appear to lead to a T T ¯ $$ T\overline{T} $$ deformation of the free theory. |
| format | Article |
| id | doaj-art-46e9a3ab20b74507816e8087ba8b6d8d |
| institution | DOAJ |
| issn | 1029-8479 |
| language | English |
| publishDate | 2025-04-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | Journal of High Energy Physics |
| spelling | doaj-art-46e9a3ab20b74507816e8087ba8b6d8d2025-08-20T03:09:35ZengSpringerOpenJournal of High Energy Physics1029-84792025-04-012025413810.1007/JHEP04(2025)006N $$ \mathcal{N} $$ = 2 heterotic strings revisitedAmit Giveon0Akikazu Hashimoto1David Kutasov2Racah Institute of Physics, The Hebrew UniversityDepartment of Physics, University of WisconsinKadanoff Center for Theoretical Physics, Enrico Fermi Institute, and Department of Physics University of ChicagoAbstract We show that 1 + 1 dimensional vacua of the (0, 2) heterotic string have many properties in common with more recently studied physical systems. The free theory exhibits a symmetric product CFT structure. The single-string Hilbert space splits into sectors labeled by the string winding, w, that contain purely left-moving (for w > 0) and right-moving (for w < 0) excitations. These sectors exhibit infinite-dimensional left and right-moving symmetry algebras, respectively, with central extensions that depend on w. String interactions between left and right-movers appear to lead to a T T ¯ $$ T\overline{T} $$ deformation of the free theory.https://doi.org/10.1007/JHEP04(2025)006Conformal Field Models in String TheorySuperstrings and Heterotic Strings |
| spellingShingle | Amit Giveon Akikazu Hashimoto David Kutasov N $$ \mathcal{N} $$ = 2 heterotic strings revisited Journal of High Energy Physics Conformal Field Models in String Theory Superstrings and Heterotic Strings |
| title | N $$ \mathcal{N} $$ = 2 heterotic strings revisited |
| title_full | N $$ \mathcal{N} $$ = 2 heterotic strings revisited |
| title_fullStr | N $$ \mathcal{N} $$ = 2 heterotic strings revisited |
| title_full_unstemmed | N $$ \mathcal{N} $$ = 2 heterotic strings revisited |
| title_short | N $$ \mathcal{N} $$ = 2 heterotic strings revisited |
| title_sort | n mathcal n 2 heterotic strings revisited |
| topic | Conformal Field Models in String Theory Superstrings and Heterotic Strings |
| url | https://doi.org/10.1007/JHEP04(2025)006 |
| work_keys_str_mv | AT amitgiveon nmathcaln2heteroticstringsrevisited AT akikazuhashimoto nmathcaln2heteroticstringsrevisited AT davidkutasov nmathcaln2heteroticstringsrevisited |