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arXiv · hep-th/9910189

Generalized Invariants and Quantum Evolution of Open Fermionic System

S. P. Kim·A. E. Santana·F. C. Khanna
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Abstract

Open systems acquire time-dependent coupling constants through interaction with an external field or environment. We generalize the Lewis-Riesenfeld invariant theorem to open system of quantum fields after second quantization. The generalized invariants and thereby the quantum evolution are found explicitly for time-dependent quadratic fermionic systems. The pair production of fermions is computed and other physical implications are discussed.

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S. P. Kim, A. E. Santana, F. C. Khanna. 2000-07-04. Generalized Invariants and Quantum Evolution of Open Fermionic System. https://doi.org/10.1016/s0375-9601(00)00406-0

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