ON THE ALGEBRAIC STRUCTURE OF GRAVITATIONAL DESCENDANTS IN CP(N-1) COSET MODELS

被引：3
|
作者：
LERCHE, W [1 ]
WARNER, NP [1 ]
机构：
[1] UNIV SO CALIF, DEPT PHYS, LOS ANGELES, CA 90089 USA
来源：
PHYSICS LETTERS B | 1995年 / 343卷 / 1-4期
关键词：
D O I：
10.1016/0370-2693(94)01440-N
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We investigate how specific free-field realizations of twisted N = 2 supersymmetric coset models give rise to natural extensions of the ''matter'' Hilbert spaces in such a manner as to incorporate the various gravitational excitations. In particular, we show that adopting a particular screening prescription is equivalent to imposing the requisite equivariance condition on cohomology. We find a simple algebraic characterization of the W-n-gravitational ground ring spectra of these theories in terms of affine-SU(n) highest weights.
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收藏
页码：87 / 93
页数：7
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