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The semiclassical energy density of kinks and solitons
- Source :
- Phys. Rev. D 107 (2023) 065002
- Publication Year :
- 2022
-
Abstract
- 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.<br />Comment: 20 pages; Mathematica notebooks containing the relevant calculations as ancillary files; v3: final version
- Subjects :
- High Energy Physics - Theory
General Relativity and Quantum Cosmology
Subjects
Details
- Database :
- arXiv
- Journal :
- Phys. Rev. D 107 (2023) 065002
- Publication Type :
- Report
- Accession number :
- edsarx.2204.08785
- Document Type :
- Working Paper
- Full Text :
- https://doi.org/10.1103/PhysRevD.107.065002