Keldysh formalism
id:
keldysh-formalism-310-16737354
title:
Keldysh formalism
text:
In non-equilibrium physics, the Keldysh formalism or Keldysh–Schwinger formalism is a general framework for describing the quantum mechanical evolution of a system in a non-equilibrium state or systems subject to time varying external fields. Historically, it was foreshadowed by the work of Julian Schwinger and proposed almost simultaneously by Leonid Keldysh and, separately, Leo Kadanoff and Gordon Baym. It was further developed by later contributors such as O. V. Konstantinov and V. I. Perel.
brand slug:
wiki
category slug:
encyclopedia
description:
original url:
https://en.wikipedia.org/wiki/Keldysh_formalism
date created:
date modified:
2024-04-24T00:53:39Z
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image:
{"content_url":"https://upload.wikimedia.org/wikipedia/commons/1/10/QuantumPhaseTransition.svg","width":512,"height":369}
fields total:
13
integrity:
14