dc.contributor.author | Brauner, Tomas | |
dc.contributor.author | Filios, Georgios | |
dc.contributor.author | Kolesova, Helena | |
dc.date.accessioned | 2023-01-26T13:10:57Z | |
dc.date.available | 2023-01-26T13:10:57Z | |
dc.date.created | 2019-12-04T15:26:36Z | |
dc.date.issued | 2019 | |
dc.identifier.citation | Brauner, T., Filios, G., & Kolešová, H. (2019). Chiral soliton lattice in QCD-like theories. Journal of High Energy Physics, 2019(12), 1-26. | en_US |
dc.identifier.issn | 1126-6708 | |
dc.identifier.uri | https://hdl.handle.net/11250/3046627 | |
dc.description.abstract | Recently, it has been shown that the ground state of quantum chromodynamics (QCD) in suffciently strong magnetic fields and at moderate baryon number chemical potential carries a crystalline condensate of neutral pions: the chiral soliton lattice (CSL). While the result was obtained in a model-independent manner using effective field theory techniques, its realization from first principles using lattice Monte Carlo simulation is hampered by the infamous sign problem. Here we show that CSL, or a similar inhomogeneous phase, also appears in the phase diagram of a class of vector-like gauge theories that do not suffer from the sign problem even in the presence of a baryon chemical potential and external magnetic field. We also show that the onset of nonuniform order manifests itself already in the adjacent homogeneous Bose-Einstein-condensation phase through a characteristic roton-like minimum in the dispersion relation of the lowest-lying quasiparticle mode. Last but not least, our work gives a class of explicit counterexamples to the long-standing conjecture that positivity of the determinant of the Dirac operator (that is, absence of the sign problem) in a vector-like gauge theory precludes spontaneous breaking of translational invariance, and thus implies the absence of inhomogeneous phases in the phase diagram of the theory. | en_US |
dc.language.iso | eng | en_US |
dc.publisher | Springer | en_US |
dc.rights | Navngivelse 4.0 Internasjonal | * |
dc.rights.uri | http://creativecommons.org/licenses/by/4.0/deed.no | * |
dc.title | Chiral soliton lattice in QCD-like theories | en_US |
dc.type | Peer reviewed | en_US |
dc.type | Journal article | en_US |
dc.description.version | publishedVersion | en_US |
dc.rights.holder | The authors | en_US |
dc.subject.nsi | VDP::Fysikk: 430 | en_US |
dc.subject.nsi | VDP::Physics: 430 | en_US |
dc.subject.nsi | VDP::Fysikk: 430 | en_US |
dc.subject.nsi | VDP::Physics: 430 | en_US |
dc.source.pagenumber | 1-26 | en_US |
dc.source.volume | 2019 | en_US |
dc.source.journal | Journal of High Energy Physics (JHEP) | en_US |
dc.source.issue | 12 | en_US |
dc.identifier.doi | 10.1007/JHEP12(2019)029 | |
dc.identifier.cristin | 1756747 | |
cristin.ispublished | true | |
cristin.fulltext | original | |
cristin.qualitycode | 2 | |