Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Efficient simulated tempering with approximated weights: Applications to
  first-order phase transitions   Simulated tempering (ST) has attracted a great deal of attention in the last
years, due to its capability to allow systems with complex dynamics to escape
from regions separated by large entropic barriers. However its performance is
strongly dependent on basic ingredients, such as the choice of the set of
temperatures and their associated weights. Since the weight evaluations are not
trivial tasks, an alternative approximated approach was proposed by Park and
Pande (Phys. Rev. E {\bf 76}, 016703 (2007)) to circumvent this difficulty.
Here we present a detailed study about this procedure by comparing its
performance with exact (free-energy) weights and other methods, its dependence
on the total replica number $R$ and on the temperature set. The ideas above are
analyzed in four distinct lattice models presenting strong first-order phase
transitions, hence constituting ideal examples in which the performance of
algorithm is fundamental. In all cases, our results reveal that approximated
weights work properly in the regime of larger $R$'s. On the other hand, for
sufficiently small $R$ its performance is reduced and the systems do not cross
properly the free-energy barriers. Finally, for estimating reliable temperature
sets, we consider a simple protocol proposed at Comp. Phys. Comm. {\bf 128},
2046 (2014).

28
The categories of this paper are: alg-geom
33
The categories of this paper are: plasm-ph
5
The categories of this paper are: gr-qc
8
The categories of this paper are: hep-ex
30
The categories of this paper are: q-alg
34
The categories of this paper are: chem-ph
18
The categories of this paper are: econ
7
The categories of this paper are: hep-th
32
The categories of this paper are: atom-ph
23
The categories of this paper are: solv-int
29
The categories of this paper are: funct-an
27
The categories of this paper are: comp-gas
3
The categories of this paper are: physics
37
The categories of this paper are: supr-con
2
The categories of this paper are: math
25
The categories of this paper are: patt-sol