378 citations
- Space Telescope Science InstituteUS27 papers
- Johns Hopkins UniversityUS20 papers
- Center for Astrophysics Harvard & SmithsonianUS14 papers
- Université Bourgogne Franche-ComtéFR10 papers
- Goddard Space Flight CenterUS9 papers
- Massachusetts Institute of TechnologyUS9 papers
- Eureka ScientificUS8 papers
- Centre National de la Recherche ScientifiqueFR7 papers
- Max Planck Institute for Extraterrestrial PhysicsDE7 papers
- Harvard UniversityUS6 papers
- North Carolina State UniversityUS6 papers
- Stellenbosch UniversityZA6 papers
4 papers · 1 filter
Quantum contribution to domain wall tension from spectral methods
N. Graham, H. Weigel
In field theory, domain walls are constructed by embedding localized field configurations varying in one space dimension, such as the kink, in two or three space dimensions.…
Renormalized Quantum Stress-Energy Tensor of a Nonzero Radius Cosmic String
Noah Graham
We calculate the effects of quantum fluctuations of a scalar field in the "ballpoint pen" cosmic string geometry. Using the approach to renormalization established previously for t…
Quantum energies of solitons with different topological charges
N. Graham, H. Weigel
The vacuum polarization energy is the leading quantum correction to the classical energy of a soliton. We study this energy for two-component solitons in one space dimension as a f…
Berezinskii-Kosterlitz-Thouless Renormalization Group Flow at a Quantum Phase Transition
Matthias Thamm, Harini Radhakrishnan, Hatem Barghathi +4
We present a controlled numerical study of the Berezinskii-Kosterlitz-Thouless (BKT) transition in the one-dimensional Bose-Hubbard model at unit filling, providing evidence of the…