# name
Momentum distribution in 3He-4He liquid mixtures

# metadata.dc.description.abstract[].value
We present variational calculations of the one-body density matrices and momentum distributions for 
3
H
e
−
4
He
 mixtures in the zero-temperature limit, in the framework of the correlated basis functions theory. The ground-state wave function contains two- and three-body correlations and the matrix elements are computed by (Fermi) hypernetted chain techniques. The dependence on the 
3
He
 concentration 
(
x
3
)
 of the 
4
He
 condensate fraction 
(
n
(
4
)
0
)
 and of the 
3
He
 pole strength 
(
Z
F
)
 is studied along the 
P
=
0
 isobar. At low 
3
He
 concentrations, the computed 
4
He
 condensate fraction is not significantly affected by the 
3
He
 statistics. Despite the low 
x
3
 values, 
Z
F
 is found to be quite smaller than that of the corresponding pure 
3
He
because of the strong 
3
H
e
−
4
He
 correlations and of the overall, large total density ρ. A small increase of 
n
(
4
)
0
 along 
x
3
 is found, which is mainly due to the decrease of ρ with respect to the pure-
4
He
 phase.

# metadata.dc.relation.isformatof[].value
Reproducció digital del document publicat en format paper, proporcionada per PROLA i http://dx.doi.org/10.1103/PhysRevB.56.11854

# metadata.dc.source[].value
Articles publicats en revistes (Física Quàntica i Astrofísica)

# metadata.dc.title[].value
Momentum distribution in 3He-4He liquid mixtures