Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Experimental measurements of the temperature-dependent Van Hove function
  in a $\text{Zr}_{80} \text{Pt}_{20}$ liquid   Even though the viscosity is one of the most fundamental properties of
liquids, the connection with the atomic structure of the liquid has proven
elusive. By combining inelastic neutron scattering with the electrostatic
levitation technique the time-dependent pair-distribution function (i.e. the
Van Hove function) has been determined for liquid Zr80Pt20. We show that the
decay-time of the first peak of the Van Hove function is directly related to
the Maxwell relaxation time of the liquid, which is proportional to the shear
viscosity. This result demonstrates that the local dynamics for increasing or
decreasing the coordination number of local clusters by one determines the
viscosity at high temperature, supporting earlier predictions from molecular
dynamics simulations.

13
The categories of this paper are: quant-ph
3
The categories of this paper are: physics
12
The categories of this paper are: nucl-th
11
The categories of this paper are: hep-lat
37
The categories of this paper are: supr-con
16
The categories of this paper are: stat
27
The categories of this paper are: comp-gas
29
The categories of this paper are: funct-an
0
The categories of this paper are: hep-ph
33
The categories of this paper are: plasm-ph
24
The categories of this paper are: dg-ga
25
The categories of this paper are: patt-sol
34
The categories of this paper are: chem-ph
5
The categories of this paper are: gr-qc
9
The categories of this paper are: nlin
2
The categories of this paper are: math