TY - JOUR

T1 - On the equivalence of fermionic string to bosonic string in two dimensions

AU - Ishikawa, Hiroshi

N1 - Funding Information:
I would like to thank S. Hirano and M. Kato for helpful discussions. I would also like to thank Y. Matsuo for discussion and reading of the manuscript. This work is supportedb y the Japan Society for the Promotion of Science, and the Grant-in-Aid for Scientific Research from the Ministry of Education, Science and Culture.

PY - 1996/9/26

Y1 - 1996/9/26

N2 - Two-dimensional fermionic string theory is shown to have a structure of topological model, which is isomorphic to a tensor product of two topological ghost systems independent of each other. One of them is identified with c = 1 bosonic string theory while the other has trivial physical contents. This fact enables us to regard two-dimensional fermionic string theory as an embedding of c = 1 bosonic string theory in the moduli space of fermionic string theories. Upon this embedding, the discrete states of c = 1 string theory are mapped to those of fermionic string theory, which is considered to be the origin of the similarity between the physical spectra of these two theories. We also discuss a novel BRST operator associated with this topological structure.

AB - Two-dimensional fermionic string theory is shown to have a structure of topological model, which is isomorphic to a tensor product of two topological ghost systems independent of each other. One of them is identified with c = 1 bosonic string theory while the other has trivial physical contents. This fact enables us to regard two-dimensional fermionic string theory as an embedding of c = 1 bosonic string theory in the moduli space of fermionic string theories. Upon this embedding, the discrete states of c = 1 string theory are mapped to those of fermionic string theory, which is considered to be the origin of the similarity between the physical spectra of these two theories. We also discuss a novel BRST operator associated with this topological structure.

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U2 - 10.1016/0370-2693(96)00850-7

DO - 10.1016/0370-2693(96)00850-7

M3 - Article

AN - SCOPUS:0043096300

VL - 385

SP - 117

EP - 124

JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

SN - 0370-2693

IS - 1-4

ER -