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Vacuum Energy in Quantum Graphs by jeep2014 is a document available to read on EtoBox.
1. Vacuum energy in quantum field theory can be calculated from the spectrum of a differential operator associated with the field. For quantum graphs, it has been calculated using two methods: directly from the known spectrum, and from a trace formula relating the spectrum to periodic orbits on the graph. 2. For scale-invariant boundary conditions, the trace formula method and a method using an integral kernel (the "method of images") give identical results, with the vacuum energy expressed as a sum over c
- Author
- jeep2014
- Language
- EN