β Scribed by Masahiro Imachi; Yasuhiko Shinno; Hiroshi Yoneyama
No coin nor oath required. For personal study only.
In Monte Carlo simulation, lattice field theory with a 0 term suffers from the sign problem. This problem can be circumvented by Fourier-transforming the topological charge distribution P(Q). Although this strategy works well for small lattice volume, effect of errors of P(Q) b ecomes serious with increasing volume and prevents one from studying the phase structure. This is called flattening.
As an alternative approach, we apply the maximum entropy method (MEM) to the Gaussian P(Q). It is found that the flattening could be much improved by use of the MEM
π SIMILAR VOLUMES
This paper presents a field method suitable for studying the motion of conservative and non-conservative holonomic dynamical systems possessing finite numbers of degrees of freedom. It is shown that any complete solution of a quasi-linear partial differential equation of the first order can be used
A simple statistical extension of the Flory theory of excluded volume is developed, and applied to random heteropolymer collapse and a simple model of protein folding. Sequence heterogeneity is found to lead to new effects. The nucleation of protein folding is also briefly considered.