Browsing Τμήμα Φυσικής / Department of Physics by Subject "Green's function"
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Article
Exciton in an Aharonov-Bohm ring: An exactly soluble interacting mesoscopic system
(2006)A Green's function procedure leads to an exact determination of the energy spectrum and the associated eigenstates of a system of two oppositely charged particles interacting through a contact potential and moving in a ...
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Article
Worldline path integral for the massive Dirac propagator: A four-dimensional approach
(1999)We simplify and generalize an approach proposed by Di Vecchia and Ravndal to describe a massive Dirac particle in external vector and scalar fields. Two different path integral representations for the propagator are derived ...