Details
| Original language | English |
|---|---|
| Pages (from-to) | 49-54 |
| Number of pages | 6 |
| Journal | Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics |
| Volume | 405 |
| Issue number | 1-2 |
| Publication status | Published - 17 Jul 1997 |
| Externally published | Yes |
Abstract
When the gauge instantons on the N = 2 string worldsheet are properly included in the sum over topologies, the breaking of SO(2,2) Lorentz symmetry in ℝ2,2 is parametrized by a spacetime twistor containing the string coupling and theta angle. The resulting (tree-level) effective action for the open string is not Yang's but Leznov's cubic action for self-dual Yang-Mills in a light-cone gauge. In the closed case, Plebański's action for self-dual gravity gets modified analogously. In contrast to the N = 1 NSR string, picture-changing is not locally invertible, but produces a semi-infinite tower of massless physical states with ever-increasing spin, perhaps related to harmonic superspace. A truncation yields the two-field action of Chalmers and Siegel.
ASJC Scopus subject areas
- Physics and Astronomy(all)
- Nuclear and High Energy Physics
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In: Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, Vol. 405, No. 1-2, 17.07.1997, p. 49-54.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - N = 2 worldsheet instantons yield cubic self-dual Yang-Mills
AU - Lechtenfeld, Olaf
AU - Siegel, Warren
N1 - Funding Information: * Supported in part by ‘Deutsche Forschungsgemeinschaft’ and ‘Volkswagen-Stifiung’ as well as the National Science Foundation under grant no. PHY 9309888. 1P ermanent address: Institut fiir Theoretische Physik, Universitgt Harmover, Germany. http://www.itp.uni-hannover.de/lechtenf/. ’ siegeI@insti.physics.sunysb.edu. Copyright: Copyright 2018 Elsevier B.V., All rights reserved.
PY - 1997/7/17
Y1 - 1997/7/17
N2 - When the gauge instantons on the N = 2 string worldsheet are properly included in the sum over topologies, the breaking of SO(2,2) Lorentz symmetry in ℝ2,2 is parametrized by a spacetime twistor containing the string coupling and theta angle. The resulting (tree-level) effective action for the open string is not Yang's but Leznov's cubic action for self-dual Yang-Mills in a light-cone gauge. In the closed case, Plebański's action for self-dual gravity gets modified analogously. In contrast to the N = 1 NSR string, picture-changing is not locally invertible, but produces a semi-infinite tower of massless physical states with ever-increasing spin, perhaps related to harmonic superspace. A truncation yields the two-field action of Chalmers and Siegel.
AB - When the gauge instantons on the N = 2 string worldsheet are properly included in the sum over topologies, the breaking of SO(2,2) Lorentz symmetry in ℝ2,2 is parametrized by a spacetime twistor containing the string coupling and theta angle. The resulting (tree-level) effective action for the open string is not Yang's but Leznov's cubic action for self-dual Yang-Mills in a light-cone gauge. In the closed case, Plebański's action for self-dual gravity gets modified analogously. In contrast to the N = 1 NSR string, picture-changing is not locally invertible, but produces a semi-infinite tower of massless physical states with ever-increasing spin, perhaps related to harmonic superspace. A truncation yields the two-field action of Chalmers and Siegel.
UR - http://www.scopus.com/inward/record.url?scp=0039971799&partnerID=8YFLogxK
U2 - 10.1016/S0370-2693(97)00595-9
DO - 10.1016/S0370-2693(97)00595-9
M3 - Article
AN - SCOPUS:0039971799
VL - 405
SP - 49
EP - 54
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 - 1-2
ER -