Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Spin dynamics in tunneling decay of a metastable state   We analyze spin dynamics in the tunneling decay of a metastable localized
state in the presence of spin-orbit coupling. We find that the spin
polarization at short time scales is affected by the initial state while at
long time scales both the probability- and the spin density exhibit
diffraction-in-time phenomenon. We find that in addition to the tunneling time
the tunneling in general can be characterized by a new parameter, the tunneling
length. Although the tunneling length is independent on the spin-orbit
coupling, it can be accessed by the spin rotation measurement.

17
The categories of this paper are: q-fin
35
The categories of this paper are: mtrl-th
1
The categories of this paper are: cs
27
The categories of this paper are: comp-gas
28
The categories of this paper are: alg-geom
5
The categories of this paper are: gr-qc
24
The categories of this paper are: dg-ga
14
The categories of this paper are: math-ph
7
The categories of this paper are: hep-th
37
The categories of this paper are: supr-con
11
The categories of this paper are: hep-lat
20
The categories of this paper are: acc-phys
16
The categories of this paper are: stat
34
The categories of this paper are: chem-ph
3
The categories of this paper are: physics
21
The categories of this paper are: adap-org