Four vector made of Pauli matrices commute?

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SUMMARY

The discussion centers on the commutation properties of vectors composed of Pauli matrices, specifically the products \(\bar{\sigma}^\mu\) and \(\sigma^\nu\). It is established that these products do not commute, and the inquiry is directed towards determining the commutator of these matrices. Understanding the commutation relations of Pauli matrices is crucial for applications in quantum mechanics and quantum computing.

PREREQUISITES
  • Familiarity with quantum mechanics concepts, particularly spin operators.
  • Understanding of Pauli matrices and their algebraic properties.
  • Knowledge of commutators in the context of linear algebra.
  • Basic grasp of vector notation in quantum physics.
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  • Research the commutation relations of Pauli matrices in quantum mechanics.
  • Explore the implications of non-commuting operators in quantum theory.
  • Study the role of commutators in the formulation of quantum mechanics.
  • Investigate applications of Pauli matrices in quantum computing algorithms.
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Physicists, quantum mechanics students, and researchers in quantum computing who are interested in the mathematical foundations of quantum theory and the behavior of spin systems.

earth2
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Hey guys

There are those vectors made of Pauli matrices like

\bar{\sigma}^\mu and {\sigma}^\mu. So if I have the product

\bar{\sigma}^\mu {\sigma}^\nu I wonder if it is commutative? And if not, what is the commutator?

Cheers,
earth2
 
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Why don't you work it out?
 

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