Details
| Original language | English |
|---|---|
| Pages (from-to) | 449-474 |
| Number of pages | 26 |
| Journal | Nuclear Physics B |
| Volume | 548 |
| Issue number | 1-3 |
| Publication status | Published - 24 May 1999 |
Abstract
By carefully analysing the picture dependence of the BRST cohomology an infinite set of symmetry charges of the closed N = 2 string is identified. The transformation laws of the physical vertex operators are shown to coincide with the linearised non-local symmetries of the Plebanski equation (which is the effective field theory of the closed N = 2 string). Moreover, the corresponding Ward identities are powerful enough to allow for a rederivation of the well-known vanishing theorem for the tree-level correlation functions with more than three external legs.
Keywords
- BRST cohomology, N = 2 string, Non-local symmetry, Ward identities
ASJC Scopus subject areas
- Physics and Astronomy(all)
- Nuclear and High Energy Physics
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In: Nuclear Physics B, Vol. 548, No. 1-3, 24.05.1999, p. 449-474.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Non-local symmetries of the closed N = 2 string
AU - Jünemann, Klaus
AU - Lechtenfeld, Olaf
AU - Popov, Alexander D.
N1 - Funding Information: K.J. would like to thank E Brandt, H. Dennhardt and B. Niemeyer for useful discussions. A.D.E thanks the Institut fiir Theoretische Physik der Universit~it Hannover for its hospitality. The work of A.D.P. was partially supported by the Heisenberg-Landau Program. Copyright: Copyright 2018 Elsevier B.V., All rights reserved.
PY - 1999/5/24
Y1 - 1999/5/24
N2 - By carefully analysing the picture dependence of the BRST cohomology an infinite set of symmetry charges of the closed N = 2 string is identified. The transformation laws of the physical vertex operators are shown to coincide with the linearised non-local symmetries of the Plebanski equation (which is the effective field theory of the closed N = 2 string). Moreover, the corresponding Ward identities are powerful enough to allow for a rederivation of the well-known vanishing theorem for the tree-level correlation functions with more than three external legs.
AB - By carefully analysing the picture dependence of the BRST cohomology an infinite set of symmetry charges of the closed N = 2 string is identified. The transformation laws of the physical vertex operators are shown to coincide with the linearised non-local symmetries of the Plebanski equation (which is the effective field theory of the closed N = 2 string). Moreover, the corresponding Ward identities are powerful enough to allow for a rederivation of the well-known vanishing theorem for the tree-level correlation functions with more than three external legs.
KW - BRST cohomology
KW - N = 2 string
KW - Non-local symmetry
KW - Ward identities
UR - http://www.scopus.com/inward/record.url?scp=0033599944&partnerID=8YFLogxK
U2 - 10.1016/S0550-3213(99)00156-X
DO - 10.1016/S0550-3213(99)00156-X
M3 - Article
AN - SCOPUS:0033599944
VL - 548
SP - 449
EP - 474
JO - Nuclear Physics B
JF - Nuclear Physics B
SN - 0550-3213
IS - 1-3
ER -