2025-02-23T18:36:59-05:00 DEBUG: VuFindSearch\Backend\Solr\Connector: Query fl=%2A&wt=json&json.nl=arrarr&q=id%3A%22irk-123456789-121002%22&qt=morelikethis&rows=5
2025-02-23T18:36:59-05:00 DEBUG: VuFindSearch\Backend\Solr\Connector: => GET http://localhost:8983/solr/biblio/select?fl=%2A&wt=json&json.nl=arrarr&q=id%3A%22irk-123456789-121002%22&qt=morelikethis&rows=5
2025-02-23T18:36:59-05:00 DEBUG: VuFindSearch\Backend\Solr\Connector: <= 200 OK
2025-02-23T18:36:59-05:00 DEBUG: Deserialized SOLR response

Variational two-particle wave equation in scalar quantum field theory

We study two-particle systems in a model quantum field theory, in which scalar particles of different mass interact via a mediating scalar field. The Lagrangian of the model is reformulated using covariant Green's functions to solve for the mediating field in terms of the particle fields. This r...

Full description

Saved in:
Bibliographic Details
Main Author: Darewych, J.
Format: Article
Language:English
Published: Інститут фізики конденсованих систем НАН України 2000
Series:Condensed Matter Physics
Online Access:http://dspace.nbuv.gov.ua/handle/123456789/121002
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:We study two-particle systems in a model quantum field theory, in which scalar particles of different mass interact via a mediating scalar field. The Lagrangian of the model is reformulated using covariant Green's functions to solve for the mediating field in terms of the particle fields. This results in a Hamiltonian in which the mediating-field propagator appears directly in the interaction term. The variational method, with a simple Fock-state trial state, is used to derive a relativistic momentum-space two-particle wave equation. Non-relativistic and one-particle limits of the equation are determined and discussed briefly