I have a question related to the Lorentz invariance.(adsbygoogle = window.adsbygoogle || []).push({});

(on the book of Mark Srednicki Quantum Field Theory, page 35 prob. 2.9 c)

There are representations of [itex]\Lambda[/itex] and S.

In order to show that result of problem, I use number of two ways.

1. I expanded [itex]\Lambda[/itex] to infinitesimal form using Taylor expansion.

2. Just original shape of exponential form.

When I inserted values of S^12, the first method gives me that the value is 0.(by specific element, that is rho = 0, tau =1) But the second method gives me that the value is 1.

The correct answer is 0. because most of components are 0 except for middle row and middle column(2x2). I can't understand this discrepancy. Please explain this error.

(Sorry about that I can't use Latex. because I'm a novice of this web site..)

**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!

# Question related to the Lorentz Invariance

Loading...

Similar Threads - Question related Lorentz | Date |
---|---|

I X-ray dose question | Mar 14, 2018 |

I X-ray tube to gamma tube question | Mar 13, 2018 |

A Question about a cross section from PDG | Mar 8, 2018 |

A Question about the matrix of a pseudoscalar meson | Jan 20, 2018 |

Question on the Standard Model | Jan 17, 2015 |

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