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Chiral-imbalance density wave in baryonic matters
- Source :
- Journal of Physics G: Nuclear and Particle Physics. 47:045101
- Publication Year :
- 2020
- Publisher :
- IOP Publishing, 2020.
-
Abstract
- We propose a new chirality-imbalance phenomenon arising in baryonic/high dense matters under a magnetic field. A locally chiral-imbalanced (parity-odd) domain can be created due to the electromagnetically induced $U(1)_A$ anomaly in high-dense matters. The proposed local-chiral imbalance generically possesses a close relationship to a spacial distribution of an inhomogeneous chiral (pion)-vector current coupled to the magnetic field. To demonstrate such a nontrivial correlation, we take the skyrmion crystal approach to model baryonic/high dense matters. Remarkably enough, we find the chirality-imbalance distribution takes a wave form in a high density region (dobbed ``chiral-imbalance density wave''), when the inhomogeneous chiral condensate develops to form a chiral density wave. This implies the emergence of a nontrivial density wave for the explicitly broken $U(1)_A$ current simultaneously with the chiral density wave for the spontaneously broken chiral-flavor current. We further find that the topological phase transition in the skyrmion crystal model (between skyrmion and half-skyrmion phases) undergoes the deformation of the chiral-imbalance density wave in shape and periodicity. The emergence of this chiral-imbalance density wave could give a crucial contribution to studies on the chiral phase transition, as well as the nuclear matter structure, in compact stars under a magnetic field.<br />11 pages, 16 figures
- Subjects :
- Condensed Matter::Quantum Gases
Physics
Nuclear and High Energy Physics
Nuclear Theory
010308 nuclear & particles physics
High Energy Physics::Lattice
Skyrmion
High Energy Physics::Phenomenology
FOS: Physical sciences
Nuclear matter
01 natural sciences
Density wave theory
Magnetic field
Nuclear Theory (nucl-th)
High Energy Physics - Phenomenology
High Energy Physics - Phenomenology (hep-ph)
Pion
Quantum electrodynamics
Crystal model
0103 physical sciences
Topological order
Anomaly (physics)
010306 general physics
Subjects
Details
- ISSN :
- 13616471 and 09543899
- Volume :
- 47
- Database :
- OpenAIRE
- Journal :
- Journal of Physics G: Nuclear and Particle Physics
- Accession number :
- edsair.doi.dedup.....b49064778239fefe0317bc1c22cd097c