arXivDaily arXiv每日学术速递 周一至周五更新
北美退伍军人节(Veterans Day),12 日无更新
arXiv 1802.07541hep-thhep-ph
收藏

有效弦的平均场量子化

Mean field quantization of effective string

Yuri Makeenko

摘要:

我描述了最近提出的玻色弦关于平均场基态的量子化,特别注意与通常的关于经典真空的量子化的差异,这对于d>2是不稳定的。特别地,弦的磁化率指数$γ_{\rm str}$在通常的微扰理论中是1,但在平均场近似中等于1/2,适用于2<d<26。我表明,总中心荷等于零的平均场近似,并认为波动的平均场不破坏共形不变性。

英文摘要:

I describe the recently proposed quantization of bosonic string about the mean-field ground state, paying special attention to the differences from the usual quantization about the classical vacuum which turns out to be unstable for d>2. In particular, the string susceptibility index $γ_{\rm str}$ is 1 in the usual perturbation theory, but equals 1/2 in the mean-field approximation that applies for 2<d<26. I show that the total central charge equals zero in the mean-field approximation and argue that fluctuations about the mean field do not spoil conformal invariance.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑