On the book Conformal Field Theory by Francesco, Mathieu and Senechal (the yellow book), in the derivation of the propagator kernel [itex]K(\delta t,\xi,\xi')[/itex] on (2.73), the signs on the first and second line just doesn't match.(adsbygoogle = window.adsbygoogle || []).push({});

On first line it has [itex]-\xi^+ T \xi'-{\xi'}^+ T \xi' [/itex] while the second line, after simplifying, has [itex]\xi^+ T \xi'-{\xi'}^+ T \xi' [/itex], which is necessary to identify the term with the derivatives.

However, tracing back up to the definition of the properties of the coherent states, I cannot find any way to fix this sign. Does any one has encounter this part and have a solution?

(For those without the book, the page is attached)

**Physics Forums - The Fusion of Science and Community**

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Sign confusions on CFT (yellow book) Page 29

Loading...

Similar Threads - Sign confusions yellow | Date |
---|---|

I Spin confusion: Stern-Gerlach experiment | Jan 22, 2018 |

I Sign problem - QCD | Nov 25, 2017 |

I Zeeman effect sign of circular polarization | Jul 15, 2016 |

I Mapping between rotations and operations: sign & handedness | Mar 14, 2016 |

Signs in the Field-Theoretic Euler-Lagrange Equation | Mar 8, 2014 |

**Physics Forums - The Fusion of Science and Community**