On contact interactions realised as Friedrichs systems (CROSBI ID 258203)
Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija
Podaci o odgovornosti
Erceg, Marko ; Michelangeli, Alessandro
engleski
On contact interactions realised as Friedrichs systems
We realise the Hamiltonians of contact interactions in quantum mechanics within the framework of abstract Friedrichs systems. In particular, we show that the construction of the self-adjoint (or even only closed) operators of contact interaction supported at a fixed point can be associated with the construction of the bijective realisations of a suitable pair of abstract Friedrich operators. In this respect, the Hamiltonians of contact interaction provide novel examples of abstract Friedrich systems.
Abstract Friedrichs systems ; Point interaction Hamiltonians ; Grubb extension theory
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Podaci o izdanju
13 (3)
2019.
703-736
objavljeno
1661-8254
1661-8262
10.1007/s11785-018-0787-4