Boundary conditions: The path integral approach

Details Boundary conditions: The path integral approach Boundary conditions: The path integral approach

2007-12-28

arxiv.org/abs/0712.4353v1

J.Phys.Conf.Ser.87:012004,2007

Physics

Quantum Physics

8 pages

Scientific paper

10.1088/1742-6596/87/1/012004

The path integral approach to quantum mechanics requires a substantial generalisation to describe the dynamics of systems confined to bounded domains. Non-local boundary conditions can be introduced in Feynman's approach by means of boundary amplitude distributions and complex phases to describe the quantum dynamics in terms of the classical trajectories. The different prescriptions involve only trajectories reaching the boundary and correspond to different choices of boundary conditions of selfadjoint extensions of the Hamiltonian. One dimensional particle dynamics is analysed in detail.

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