User:hillgentleman/bc CFT
bc CFT
b-c 共形場論(bc CFT[1] (或 b-c system) 係種簡單嘅共形場論模型,由兩隻反交換嘅自由場 b、c 組成。渠會出現喺 量子化Polyakov 弦 時 gauge fixing 度出現,做Faddev-Popov 鬼( en:Faddeev-Popov ghost)[2]
Let .
- Action
- conformal weight
-
, where is the parameter - central charge
- ;
- ghost number current
- j = -:bc:
- energy-momentum tensor
- ;
- equations of motion
-
- OPE
-
- When , and the theory can be split conformally invariantly into and , where
; ...... - 當 、 同埋 ,咁渠就描述Faddeev-Popov 鬼 [3]。
註
編輯參攷
編輯- Joseph Polchinski, "String Theory, Volume I", ISBN 0521-633036