Skyrmion crystals stabilized by $\omega$-mesons

Abstract

We investigate the ground state crystalline structure of nuclear matter in the $\omega$-meson variant of the Skyrme model. After minimizing energy with respect to variations of both the Skyrme field and the period lattice, we find four distinct periodic solutions which are similar to those found in the standard Skyrme model. We use these crystals to calculate coefficients in the Bethe--Weizsäcker semi-empirical mass formula and the compression modulus of infinite nuclear matter, and find a significant improvement as compared with other variants of the Skyrme model.

16 pages, 3 figures, v2: minor revision, journal accepted version

References in corpus (4)

• Incompressibility in finite nuclei and nuclear matter
• Multi-Skyrmions with Vector Mesons
• Skyrme crystals, nuclear matter and compact stars
• Effect of Coulomb energy on Skyrmions

Cited by in corpus (6)

• Domain Wall Networks as Skyrmion Crystals in Chiral Magnets
• Topological transition from a hopfion to a toron via flexoelectric self-polarization in chiral liquid crystals
• Baby skyrmion crystals stabilized by vector mesons
• Demagnetization in micromagnetics: magnetostatic self-interactions of bulk chiral magnetic skyrmions
• Compressibility of dense nuclear matter in the $\rho$-meson variant of the Skyrme model
• Creation of domain-wall skyrmions in chiral magnets with Landau-Lifshitz-Gilbert dynamics and demagnetization