Zobrazeno 1 - 10
of 137
pro vyhledávání: '"Mak, C. H."'
Autor:
Mak, C. H., Sharma, Arun K.
We describe a novel switching algorithm based on a ``reverse'' Monte Carlo method, in which the potential is stochastically modified before the system configuration is moved. This new algorithm facilitates a generalized formulation of cluster-type Mo
Externí odkaz:
http://arxiv.org/abs/0704.1539
Autor:
Mak, C. H.
Publikováno v:
JOURNAL OF CHEMICAL PHYSICS 122 (21): Art. No. 214110 JUN 1 2005
This paper describes a new Monte Carlo method based on a novel stochastic potential switching algorithm. This algorithm enables the equilibrium properties of a system with potential $V$ to be computed using a Monte Carlo simulation for a system with
Externí odkaz:
http://arxiv.org/abs/cond-mat/0602325
Autor:
Mak, C. H.
Large-scale computer simulations involving more than a million particles have been performed to study the melting transition in a two-dimensional hard disk fluid. The van der Waals loop previously observed in the pressure-density relationship of smal
Externí odkaz:
http://arxiv.org/abs/cond-mat/0502216
Autor:
Mak, C. H., Zakharov, Sergei
We describe a novel simulation method that eliminates the slowing-down problem in the Monte Carlo simulations of imaginary-time path integrals near the continuum limit. This method combines a stochastic blocking procedure with the multigrid method to
Externí odkaz:
http://arxiv.org/abs/cond-mat/0402181
Autor:
Egger, R., Mak, C. H.
This article gives an introduction to the multilevel blocking (MLB) approach to both the fermion and the dynamical sign problem in path-integral Monte Carlo simulations. MLB is able to substantially relieve the sign problem in many situations. Beside
Externí odkaz:
http://arxiv.org/abs/cond-mat/0109173
Publikováno v:
Phys. Rev. E 61, 5961 (2000)
The multilevel blocking algorithm recently proposed as a possible solution to the sign problem in path-integral Monte Carlo simulations has been extended to systems with long-ranged interactions along the Trotter direction. As an application, new res
Externí odkaz:
http://arxiv.org/abs/physics/0002031
Autor:
Egger, R., Mak, C. H.
This article provides an introduction to the ideas behind the multilevel blocking (MLB) approach to the fermion sign problem in path-integral Monte Carlo simulations, and also gives a detailed discussion of MLB results for quantum dots. MLB can turn
Externí odkaz:
http://arxiv.org/abs/cond-mat/9910495
Publikováno v:
Phys. Rev. Lett. 82, 3320 (1999); 83, 462(E) (1999)
The crossover from weak to strong correlations in parabolic quantum dots at zero magnetic field is studied by numerically exact path-integral Monte Carlo simulations for up to eight electrons. By the use of a multilevel blocking algorithm, the simula
Externí odkaz:
http://arxiv.org/abs/cond-mat/9903111
A Stochastic Liouvillian Algorithm to Simulate Dissipative Quantum Dynamics With Arbitrary Precision
Autor:
Stockburger, J., Mak, C. H.
Publikováno v:
J. Chem. Phys. 110 (1999), 4983-4985
An exact and efficient new method to simulate dynamics in dissipative quantum systems is presented. A stochastic Liouville equation, deduced from Feynman and Vernon's path-integral expression of the reduced density matrix, is used to describe the exa
Externí odkaz:
http://arxiv.org/abs/cond-mat/9811277
Autor:
Chu, J. C., Mak, C. H.
Publikováno v:
J. Chem. Phys. 110, pp.2669-2679 (1999)
Constant temperature molecular dynamics simulations were used to study solutions of flexible polyelectrolyte chains at nonzero concentrations with explicit counterions and unscreened coulombic interactions. Counterion condensation, measured via the s
Externí odkaz:
http://arxiv.org/abs/cond-mat/9811204