Abstract
We have constructed a quantum field theory in a finite box, with periodic boundary conditions, using the hypothesis that particles living in a finite box are created and/or annihilated by the creation and/or annihilation operators, respectively, of a quantum harmonic oscillator on a circle. An expression for the effective coupling constant is obtained, showing explicitly its dependence on the dimension of the box.
- Received 19 April 2004
DOI:https://doi.org/10.1103/PhysRevD.70.065018
©2004 American Physical Society