Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: A mixing interpolation method to mimic pasta phases in compact star
  matter   We present a new method to interpolate between two matter phases that allows
for a description of mixed phases and can be used, e.g., for mimicking
transitions between pasta structures occuring in the crust as well as in the
inner core of compact stars. This interpolation method is based on assuming
switch functions that are used to define a mixture of subphases while
fulfilling constraints of thermodynamic stability. The width of the transition
depends on a free parameter, the pressure increment relative to the critical
pressure of a Maxwell construction. As an example we present a trigonometric
function ansatz for the switch function together with a pressure increment
during the transition. We note that the resulting mixed phase equation of state
bears similarities with the appearance of substitutional compounds in neutron
star crusts and with the sequence of transitions between different pasta phases
in the hadron-to-quark matter transition. We apply this method to the case of a
hadron-to-quark matter transition and test the robustness of the compact star
mass twin phenomenon against the appearance of pasta phases modeled in this
way.

35
The categories of this paper are: mtrl-th
27
The categories of this paper are: comp-gas
16
The categories of this paper are: stat
5
The categories of this paper are: gr-qc
22
The categories of this paper are: chao-dyn
25
The categories of this paper are: patt-sol
24
The categories of this paper are: dg-ga
3
The categories of this paper are: physics
14
The categories of this paper are: math-ph
36
The categories of this paper are: cmp-lg
9
The categories of this paper are: nlin
2
The categories of this paper are: math
1
The categories of this paper are: cs
10
The categories of this paper are: q-bio
26
The categories of this paper are: bayes-an
19
The categories of this paper are: eess