Details
| Original language | English |
|---|---|
| Pages (from-to) | 53-69 |
| Number of pages | 17 |
| Journal | Communications in Mathematical Physics |
| Volume | 203 |
| Issue number | 1 |
| Publication status | Published - 1999 |
Abstract
We compute the BRST cohomology of the holomorphic part of the N = 2 string at arbitrary ghost and picture number. We confirm the expectation that the relative cohomology at non-zero momentum consists of a single massless state in each picture. The absolute cohomology is obtained by an independent method based on homological algebra. For vanishing momentum, the relative and absolute cohomologies both display a picture dependence - a phenomenon discovered recently also in the relative Ramond sector of N = 1 strings by Berkovits and Zwiebach [1].
ASJC Scopus subject areas
- Physics and Astronomy(all)
- Statistical and Nonlinear Physics
- Mathematics(all)
- Mathematical Physics
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In: Communications in Mathematical Physics, Vol. 203, No. 1, 1999, p. 53-69.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Chiral BRST cohomology of N = 2 strings at arbitrary ghost and picture number
AU - Jünemann, Klaus
AU - Lechtenfeld, Olaf
N1 - Copyright: Copyright 2020 Elsevier B.V., All rights reserved.
PY - 1999
Y1 - 1999
N2 - We compute the BRST cohomology of the holomorphic part of the N = 2 string at arbitrary ghost and picture number. We confirm the expectation that the relative cohomology at non-zero momentum consists of a single massless state in each picture. The absolute cohomology is obtained by an independent method based on homological algebra. For vanishing momentum, the relative and absolute cohomologies both display a picture dependence - a phenomenon discovered recently also in the relative Ramond sector of N = 1 strings by Berkovits and Zwiebach [1].
AB - We compute the BRST cohomology of the holomorphic part of the N = 2 string at arbitrary ghost and picture number. We confirm the expectation that the relative cohomology at non-zero momentum consists of a single massless state in each picture. The absolute cohomology is obtained by an independent method based on homological algebra. For vanishing momentum, the relative and absolute cohomologies both display a picture dependence - a phenomenon discovered recently also in the relative Ramond sector of N = 1 strings by Berkovits and Zwiebach [1].
UR - http://www.scopus.com/inward/record.url?scp=0033473108&partnerID=8YFLogxK
U2 - 10.48550/arXiv.hep-th/9712182
DO - 10.48550/arXiv.hep-th/9712182
M3 - Article
AN - SCOPUS:0033473108
VL - 203
SP - 53
EP - 69
JO - Communications in Mathematical Physics
JF - Communications in Mathematical Physics
SN - 0010-3616
IS - 1
ER -