Casimir Energy for Piecewise Uniform Strings
- Received Date: 1998-05-14
- Accepted Date: 1900-01-01
- Available Online: 1999-02-05
Abstract: The Casimir energy can be considered as the polarization of the vacuum energy of quantized fields due to the distortion caused by the presence of boundaries, the curvature of the space-time mani-fold or some background fields. The study about the Casimir energy can deepen our understanding of the substance of the quantum fields, so the interest in studying Casimir effect has been enhanced recently. Brevik et al. studied the Casimir energy of piecewise uniform strings first. However, they only discussed the one of closed bosonic strings. In this paper, we extend their resaerch to both open and closed bosonic strings, as well as fermionic strings. The energy of superstrings is investigated briefly too.