# Topology change and nuclear symmetry energy in compact-star matter

@article{Liu2018TopologyCA, title={Topology change and nuclear symmetry energy in compact-star matter}, author={Xiang Liu and Yong-Liang Ma and Mannque Rho}, journal={Physical Review C}, year={2018} }

We show that the cusp-like structure in the nuclear symmetry energy, a consequence of topology change, visible in the skyrmion lattice description of dense matter is extremely robust. It is present in the Skyrme model -- with the pion field only -- and is left unscathed by massive degrees of freedom such as the vector mesons $\rho$ and $\omega$ and also the scalar meson introduced as a dilaton. It leads to the emergence of parity-doubling at the skyrmion-half-skyrmion transition and impacts on…

## 8 Citations

### D ec 2 01 8 A pseudo-conformal structure in dense baryonic matter

- Physics
- 2018

We clarify and extend further the idea developed in [1, 2] that baryonic matter at high density has an emergent “pseudo-conformal symmetry.” It is argued that as baryonic density exceeds n ≃ n1/2 ∼…

### A Cusp in the Symmetry Energy, PREX-II and Quasifermions in the Core of Massive Neutron Stars

- Physics
- 2021

The "dilemma" posed by the recent announcement of the PREX-II measurement of
the neutron skin of $^{208}$Pb that suggests a stiff symmetry energy near
nuclear matter density $n_0$ and its impact on…

### Fractionalized Quasiparticles and the Hadron-Quark Duality in Dense Baryonic Matter

- Physics
- 2020

Drawing from certain analogies to highly correlated condensed matter, I sketch an admittedly speculative scenario on how baryonic matter could turn into a Fermi liquid of fractionalized baryons…

### Fractionalized Quasiparticles in Dense Baryonic Matter

- Physics
- 2020

I discuss a novel scenario on how baryonic matter could turn into a Fermi liquid of fractionalized baryons driven by high density inside compact stars. It involves the “hidden” local vector bosons ρ…

### Topology change, emergent symmetries and compact star matter

- PhysicsAAPPS Bulletin
- 2021

Topology effects have being extensively studied and confirmed in strongly correlated condensed matter physics. In the limit of large number of colors, baryons can be regarded as topological…

### Pseudoconformal structure in dense baryonic matter

- PhysicsPhysical Review D
- 2019

We clarify and extend further the idea we developed before that baryonic matter at high density has an emergent ``pseudoconformal symmetry.'' It is argued that as baryonic density exceeds…

### Mapping topology to nuclear dilaton-HLS effective field theory for dense baryonic matter

- Physics, Education
- 2021

Yong-Liang Ma 2, ∗ and Mannque Rho † School of Fundamental Physics and Mathematical Sciences, Hangzhou Institute for Advanced Study, UCAS, Hangzhou, 310024, China International Center for Theoretical…

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