Low energy physics of interacting bosons with a moat spectrum, and the implications for condensed matter and cold nuclear matter
Mar 29, 2021Citations per year
Abstract: (arXiv)
We discuss bosonic models with a moat spectrum, where in momentum space the minimum of the dispersion relation is on a sphere of nonzero radius. For spinless bosons with symmetry, we emphasize the essential difference between and . When , there are two phase transitions: at zero temperature, a transition to a state with Bose condensation, and at nonzero temperature, a transition to a spatially inhomogeneous state. When , previous analysis suggests that a mass gap is generated dynamically at any temperature. In condensed matter, a moat spectrum is important for spin-orbit-coupled bosons. For cold nuclear or quarkyonic matter, we suggest that the transport properties, such as neutrino emission, are dominated by the phonons related to a moat spectrum; also, that at least in the quarkyonic phase the nucleons may be a non-Fermi liquid.Note:
- Superceded by the results in arXiv:2112.10238, with M. Lajer and R. Konik
- boson: interaction
- boson: spinless
- energy: low
- mass: gap
- condensed matter
- dispersion relation
- critical phenomena
- transport theory
- nuclear matter
- condensation
References(97)
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