Skyrmion Crystals and Their Symmetries
Feb 27, 198935 pages
Published in:
- Phys.Rev.D 40 (1989) 3421
Report number:
- WIS-89/6-PH
Citations per year
Abstract: (APS)
We discuss the phase diagram of Skyrmion crystals as a function of both density and pressure. The use of symmetry properties of the various phases and of Fourier expansions tailored to fit these symmetries facilitates our discussion. A simple cubic arrangement of half-Skyrmions is, almost everywhere, the lowest-energy phase. At very high densities the simple cubic phase undergoes a transition to a body-centered-cubic crystal of half-Skyrmions. The transition to a crystal of Skyrmions at low densities, that was previously suggested, is not accessible thermodynamically. A first-order phase transition leading to a phase separation occurs before the previous transition can be reached.- Skyrme model
- Skyrmion: crystal
- symmetry: SU(2)
- field theory: soliton
- energy
- lattice field theory
- critical phenomena
- baryon: density
- numerical calculations
References(18)
Figures(0)