BPS Skyrmions as neutron stars

@article{Adam2014BPSSA,
  title={BPS Skyrmions as neutron stars},
  author={Christoph Adam and Carlos Naya and Joaquin Sanchez-Guillen and Ricardo A. Vazquez and Andrzej Wereszczynski},
  journal={Physics Letters B},
  year={2014},
  volume={742},
  pages={136-142}
}

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References

SHOWING 1-10 OF 47 REFERENCES

Near-BPS Skyrmions: Non-shell configurations and Coulomb effects

The relatively small binding energy in nuclei suggests that they may be well represented by near-BPS Skyrmions since their mass is roughly proportional to the baryon number $A.$ For that purpose, we

Nuclear binding energies from a Bogomol'nyi-Prasad-Sommerfield Skyrme model

Recently, within the space of generalized Skyrme models, a submodel with a Bogomol'nyi-Prasad-Sommerfield (BPS) bound was identified that reproduces some bulk properties of nuclear matter already on

Phase Transition and Anisotropic Deformations of Neutron Star Matter

The Skyrme model is a low energy, effective field theory for QCD which when coupled to a gravitational field provides an ideal semi-classical model to describe neutron stars. We use the Skyrme

Light Nuclei of Even Mass Number in the Skyrme Model

We consider the semiclassical rigid-body quantization of Skyrmion solutions of mass numbers $B=4,6,8,10$, and 12. We determine the allowed quantum states for each Skyrmion and find that they often

Skyrmions, instantons and holography

Some time ago, Atiyah and Manton observed that computing the holonomy of Yang-Mills instantons yields good approximations to static Skyrmion solutions of the Skyrme model. This paper provides an

Skyrmions in a truncated BPS theory

Recently, it has been shown that (4 + 1)-dimensional Yang-Mills theory may be written as a (3 + 1)-dimensional BPS Skyrme model, in which the Skyrme field is coupled toan infinite tower of vector

Thermodynamics of the BPS Skyrme model

One problem in the application of the Skyrme model to nuclear physics is that it predicts too large a value for the compression modulus of nuclear matter. Here we investigate the thermodynamics of