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arXiv · 1206.4824

Contribution from the interaction Hamiltonian to the expectation value of particle number with the non-equilibrium quantum field theory

Ryuuichi Hotta·Takuya Morozumi·Hiroyuki Takata
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Abstract

We develop the method analyzing particle number non-conserving phenomena with non-equilibrium quantum field theory. In this study, we consider a CP violating model with interaction Hamiltonian that breaks particle number conservation. To derive the quantum Boltzmann equation for the particle number, we solve Schwinger-Dyson equation, which are obtained from two particle irreducible closed-time-path (2PI CTP) effective action. In this calculation, we show the contribution from interaction Hamiltonian to the time evolution of expectation value of particle number.

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Ryuuichi Hotta, Takuya Morozumi, Hiroyuki Takata. 2012-06-21. Contribution from the interaction Hamiltonian to the expectation value of particle number with the non-equilibrium quantum field theory. https://doi.org/10.1063/1.4742107

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