Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Low-energy effective field theory of superfluid 3He-B and its
  gyromagnetic and Hall responses   The low-energy physics of a superfluid 3He-B is governed by Nambu-Goldstone
bosons resulting from its characteristic symmetry breaking pattern. Here we
construct an effective field theory at zero temperature consistent with all
available symmetries in curved space, which are the U(1) phase x SU(2) spin x
SO(3) orbital gauge invariance and the nonrelativistic general coordinate
invariance, up to the next-to-leading order in a derivative expansion. The
obtained low-energy effective field theory is capable of reproducing
gyromagnetic responses of the superfluid 3He-B, such as a magnetization
generated by a rotation and an orbital angular momentum density generated by a
magnetic field, in a model-independent and nonperturbative way. We furthermore
show that the stress tensor exhibits a dissipationless Hall viscosity with
coefficients uniquely fixed by the orbital angular momentum density, which
manifests itself as an elliptical polarization of sound wave with an induced
transverse component.

37
The categories of this paper are: supr-con
2
The categories of this paper are: math
14
The categories of this paper are: math-ph
24
The categories of this paper are: dg-ga
8
The categories of this paper are: hep-ex
9
The categories of this paper are: nlin
31
The categories of this paper are: ao-sci
3
The categories of this paper are: physics
20
The categories of this paper are: acc-phys
30
The categories of this paper are: q-alg
35
The categories of this paper are: mtrl-th
28
The categories of this paper are: alg-geom
36
The categories of this paper are: cmp-lg
29
The categories of this paper are: funct-an
0
The categories of this paper are: hep-ph
27
The categories of this paper are: comp-gas