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: 0556-2821
DOI: 10.1103/PhysRevD.71.086005
期刊: PHYSICAL REVIEW D
Volume: 71
Issue: 8
結束頁: 
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