Delacrétaz Luca V, Nicolis Alberto, Penco Riccardo, Rosen Rachel A
Physics Department and Institute for Strings, Cosmology, and Astroparticle Physics, Columbia University, New York, New York 10027, USA.
Institut de Théorie des Phénomènes Physiques, EPFL, 1015 Lausanne, Switzerland.
Phys Rev Lett. 2015 Mar 6;114(9):091601. doi: 10.1103/PhysRevLett.114.091601. Epub 2015 Mar 2.
We use the coset construction of low-energy effective actions to systematically derive Wess-Zumino (WZ) terms for fluid and isotropic solid systems in two, three, and four spacetime dimensions. We recover the known WZ term for fluids in two dimensions as well as the very recently found WZ term for fluids in three dimensions. We find two new WZ terms for supersolids that have not previously appeared in the literature. In addition, by relaxing certain assumptions about the symmetry group of fluids we find a number of new WZ terms for fluids with and without charge, in all dimensions. We find no WZ terms for solids and superfluids.
我们使用低能有效作用量的陪集构造，系统地推导二维、三维和四维时空维度下流体和各向同性固体系统的韦斯 - 祖米诺（WZ）项。我们恢复了二维流体已知的WZ项以及最近发现的三维流体的WZ项。我们发现了两个超固体的新WZ项，这些项以前未在文献中出现过。此外，通过放宽关于流体对称群的某些假设，我们在所有维度中都发现了一些有电荷和无电荷流体的新WZ项。我们没有发现固体和超流体的WZ项。
