Eur. Phys. J. C (2005) 39: 123-127
https://doi.org/10.1140/epjc/s2004-02079-8
https://doi.org/10.1140/epjc/s2004-02079-8
theoretical physics
On the boundary conditions as Dirac constraints
Department of Physics and Electronic, School of Science, Beijing University of Chemical Technology, 100029, Beijing, P.R. China
* e-mail: jingjian@mail.buct.edu.cn
In this paper, the canonical quantization of singular Lagrangian defined in a finite volume is discussed by studying a 1 + 1 dimensional free Schrödinger field. We take the boundary conditions (BCs) as Dirac constraints, and show that those BCs as well as the intrinsic constraints (which are introduced by the singularities of Lagrangian) form the second class constraints. The quantization is performed canonically.
© Springer-Verlag, 2005
