Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
1992-08-21
J.Math.Phys. 33 (1992) 4139-4147
Physics
High Energy Physics
High Energy Physics - Theory
16 pages
Scientific paper
10.1063/1.529812
A free non-relativistic particle moving in two dimensions on a half-plane can be described by self-adjoint Hamiltonians characterized by boundary conditions imposed on the systems. The most general boundary condition is parameterized in terms of the elements of an infinite-dimensional matrix. We construct the Brownian functional integral for each of these self-adjoint Hamiltonians. Non-local boundary conditions are implemented by allowing the paths striking the boundary to jump to other locations on the boundary. Analytic continuation in time results in the Green's functions of the Schrodinger equation satisfying the boundary condition characterizing the self-adjoint Hamiltonian.
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