Formulisms of path integrals in momentum space and in mixed spaces

We define the Lagrangians in the momentum space and in mixed position-momentum spaces. In terms of the so-defined Lagrangians, the actions and the propagators are directly defined in the spaces, not as the Fourier transforms of their counterparts in the configuration space as previously known in the literature.

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Year of publication:	2000
Authors:	Yang, Guangcan ; Mao, Jian-min
Published in:	Physica A: Statistical Mechanics and its Applications. - Elsevier, ISSN 0378-4371. - Vol. 285.2000, 3, p. 499-505
Publisher:	Elsevier
Subject:	The Lagrangian function \| Path integrals \| The momentum space \| Mixed position-momentum spaces \| The semi-classical approximation

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Type of publication:	Article
Source:	RePEc - Research Papers in Economics

Persistent link: https://ebvufind01.dmz1.zbw.eu/10010590523