THE PIN GROUPS IN PHYSICS: C, P AND T

Overview of attention for article published in Reviews in Mathematical Physics, November 2011

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twitter: 5 X users
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wikipedia: 1 Wikipedia page
q&a: 9 Q&A threads
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citeulike: 1 CiteULike

So far, Altmetric has seen 9 Q&A posts from 9 users.

Why do we focus on the pin groups $\text{Pin} (1, 3)$ and $\text{Pin} (3, 1)$ as the double cover of $\text{O} (3, 1)$?

Posted by Ishan Deo, at physics.stackexchange.com, 27 Jul 2025

Given a symmetry group in a quantum theory, it is well-known that we must work with its projective representations. For $\text{SO…

Parity transformation of spinor from the view of representation of $\text {Pin}(1,3)$

Posted by particle-not good at english, at physics.stackexchange.com, 02 May 2025

Edit I understand that parity transformation of spinor is derived from representation of $\text{Pin}(1,3)$ in comment section.

Compute even Clifford Group and Spin group in signature (2,2)

Posted by Operander, at math.stackexchange.com, 20 Dec 2024

I would like to know how to calculate $\operatorname{CG^+}(2,2)$ and $\operatorname{Spin}(2,2)$. Here is the setting I am…

Does the change in the signature of the metric have a physical meaning?

Posted by Independent Physics, at physics.stackexchange.com, 23 Aug 2020

For instance, a symmetric change from $(-,+,+,+)$ to $(+,-,-,-)$ in a metric, what are its physical implications? If there arent…

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