標題: | Anatomy of zero-norm states in string theory |
作者: | Chan, CT Lee, JC Yi-Yang 電子物理學系 Department of Electrophysics |
公開日期: | 1-四月-2005 |
摘要: | We calculate and identify the counterparts of zero-norm states in the old covariant first quantized (OCFQ) spectrum of open bosonic string in two other quantization schemes of string theory, namely, the light-cone Del Giudice-Di Vecchia-Fubine zero-norm states and the off-shell Becchi-Rouet-Stora-Tyutin (BRST) zero-norm states (with ghost) in the Witten string field theory (WSFT). In particular, special attention is paid to the interparticle zero-norm states in all quantization schemes. For the case of the off-shell BRST zero-norm states, we impose the no-ghost conditions and recover exactly two types of on-shell zero-norm states in the OCFQ string spectrum for the first few low-lying mass levels. We then show that off-shell gauge transformations of WSFT are identical to the on-shell stringy gauge symmetries generated by two types of zero-norm states in the generalized massive sigma-model approach of string theory. The high-energy limit of these stringy gauge symmetries was recently used to calculate the proportionality constants, conjectured by Gross, among high-energy scattering amplitudes of different string states. Based on these zero-norm state calculations, we have thus related gauge symmetry of WSFT to the high-energy stringy symmetry of Gross. |
URI: | http://dx.doi.org/10.1103/PhysRevD.71.086005 http://hdl.handle.net/11536/13830 |
ISSN: | 2470-0010 |
DOI: | 10.1103/PhysRevD.71.086005 |
期刊: | PHYSICAL REVIEW D |
Volume: | 71 |
Issue: | 8 |
起始頁: | 0 |
結束頁: | 0 |
顯示於類別: | 期刊論文 |