The Ehrenfest Theorem in Quantum Field Theory

Ragavachariar Parthasarathy ()
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Ragavachariar Parthasarathy: Chennai Mathematical Institute

A chapter in The Legacy of Alladi Ramakrishnan in the Mathematical Sciences, 2010, pp 565-575 from Springer

Abstract: Summary The validity of the Ehrenfest theorem in Abelian and non-Abelian quantum field theories is examined. The gauge symmetries are taken to be unbroken. By suitably choosing the physical subspace, the above validity is proven in both the cases.

Keywords: Ehrenfest’s theorem; Schrödinger equation; Expectation values; Dirac equation; Abelian field theory; Gauge fixing; Quantum lagrangian; Physical subspace; Non-Abelian field theory; Quantum Chromo Dynamics; Path integral approach; Faddeev–Popov ghosts; Quantum equations; BRS transformation; Global gauge and scale transformations; Physical states (search for similar items in EconPapers)
Date: 2010
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Persistent link: https://EconPapers.repec.org/RePEc:spr:sprchp:978-1-4419-6263-8_32

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DOI: 10.1007/978-1-4419-6263-8_32

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