标题： 超流体液晶：中子星地壳中的意大利面相 显示英文标题

标题： Superfluid liquid crystals: pasta phases in neutron star crusts

摘要： 中子星地壳内边界附近的相变预测类似于液晶，在片状核（千层面）的情况下为层状A相，在棒状核（意大利面）的情况下为柱状相。与普通液晶相比，一个重要区别是核子是超流体。我们为此系统建立了流体力学方程，并用它们来研究集体振荡。核子超流体会导致这些振荡的谱出现重要的定性差异，并且与普通液晶相比，还会提高它们的频率。我们讨论了未来工作的若干方向。 显示英文摘要

摘要： The pasta phases predicted to occur near the inner boundary of the crust of a neutron star resemble liquid crystals, a smectic A in the case of sheet-like nuclei (lasagna) and the columnar phase in the case of rod-like nuclei (spaghetti). An important difference compared with usual liquid crystals is that the nucleons are superfluid. We develop the hydrodynamic equations for this system and use them to study collective oscillations. Nucleon superfluidity leads to important qualitative differences in the spectra of these oscillations and also increases their frequencies compared with ordinary liquid crystals. We discuss a number of directions for future work.