The semiclassical energy density of kinks and solitons
| Autor: | Maria Angeles Alberti Martin, Robert Schlesier, Jochen Zahn |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2022 |
| Předmět: | |
| Zdroj: | Physical Review |
| Popis: | We compute semiclassical corrections to the energy density of kinks in $\phi^4$ theory and of solitons in the sine-Gordon model in $1+1$ dimensions, using local and covariant renormalization techniques from quantum field theory in curved spacetimes. For the semiclassical correction to the energy, we recover the known results. Our analysis highlights a subtlety in the definition of a conserved stress tensor for scalar field theories in $1+1$ dimension. Comment: 20 pages; Mathematica notebooks containing the relevant calculations as ancillary files; v3: final version |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|