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I came across this statement in the book "Quantum Field theory and the Standard Model" by Matthew Schwartz.

"There is a deep connection between Spin and Lorentz invariance that is obscure in Non Relativistic Quantum Mechanics"

What is the connection between Spin and Lorentz Invariance? Is Spin a relativistic effect?

Qmechanic
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Khushal
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1 Answers1

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Dirac predicted theoretically the electron spin by application of Special Relativity Principles to Quantum Mechanics. The derivation of his famous equation is based on the demand of Lorentz covariance.

VoulKons
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