Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Spin Supercurrent   We review the main properties of Spin Waves condensation to a coherent
quantum state, named Homogeneously Precessing Domain (HPD). We describe the
long range coherent transport of magnetization by Spin Supercurrent in
antiferromagnetic superfluid 3He. This quantum phenomenon was discovered 20
years ago. Since then, many magnetic extensions of superconductivity and
superfluidity have been observed: spin Josephson phenomena, spin current
vortices, spin phase slippage, long distance magnetization transport by spin
supercurrents, etc. Several new supercurrent phenomena have been discovered,
like magnetically excited coherent quantum states, NMR in the molecular Landau
field, spin-current turbulence, formation of stable non-topological solitons
etc.

22
The categories of this paper are: chao-dyn
29
The categories of this paper are: funct-an
12
The categories of this paper are: nucl-th
3
The categories of this paper are: physics
7
The categories of this paper are: hep-th
20
The categories of this paper are: acc-phys
31
The categories of this paper are: ao-sci
33
The categories of this paper are: plasm-ph
19
The categories of this paper are: eess
10
The categories of this paper are: q-bio
32
The categories of this paper are: atom-ph
6
The categories of this paper are: astro-ph
35
The categories of this paper are: mtrl-th
11
The categories of this paper are: hep-lat
18
The categories of this paper are: econ
17
The categories of this paper are: q-fin