2005/07/01 by Klaus Kirsten, Alan J. McKane, Kirsten, Klaus +1
Mathematics · Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Theory (hep-th) #Mathematical Physics (math-ph) #Other Condensed Matter (cond-mat.other) #Quantum Electrodynamics and Casimir Effect #Quantum Mechanics and Non-Hermitian Physics #Spectral Theory in Mathematical Physics #cond-mat.other #hep-th #math-ph #math.MP
paper · pdf · doi:10.48550/arxiv.hep-th/0507005
6 pages, published in "Norman 2003, Quantum field theory under the influence of external conditions", p. 146-151
arxiv created 2005/07/01 · openalex publication_date 2005/07/01 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
We present a simple and accessible method which uses contour integration methods to derive formulae for functional determinants. To make the presentation as clear as possible we illustrate the general ideas using the Laplacian with Dirichlet boundary conditions on the interval. Afterwards, we indicate how more general operators as well as general boundary conditions can be covered.