scholarly journals Double-layer Heisenberg antiferromagnet at finite temperature: Brueckner theory and quantum Monte Carlo simulations

2000 ◽  
Vol 61 (5) ◽  
pp. 3475-3487 ◽  
Author(s):  
P. V. Shevchenko ◽  
A. W. Sandvik ◽  
O. P. Sushkov
Keyword(s):  
Monte Carlo ◽  
Monte Carlo Simulations ◽  
Double Layer ◽  
Finite Temperature ◽  
Quantum Monte Carlo ◽  
Heisenberg Antiferromagnet ◽  
Quantum Monte Carlo Simulations ◽  
Brueckner Theory

Quantum Monte Carlo Simulations of Adulteration Effect on Bond Alternating Spin=1/2 Chain

2007 ◽  
Vol 22 (07n10) ◽  
pp. 741-748
Author(s):  
Peng Zhang ◽  
Zhaoxin Xu ◽  
Heping Ying ◽  
Jianhui Dai ◽  
Peter Crompton
Keyword(s):  
Monte Carlo ◽  
Magnetic Properties ◽  
Monte Carlo Simulations ◽  
Finite Temperature ◽  
Quantum Monte Carlo ◽  
Cluster Algorithm ◽  
Heisenberg Chain ◽  
Bond Alternation ◽  
Quantum Monte Carlo Simulations

The S =1/2 Heisenberg chain with bond alternation and randomness of antiferromagnetic (AFM) and ferromagnetic (FM) interactions is investigated by quantum Monte Carlo simulations of loop/cluster algorithm. Our results have shown interesting finite temperature magnetic properties of this model. The relevance of our study to former investigation results is discussed.

scholarly journals Understanding Quantum Tunneling through Quantum Monte Carlo Simulations

2016 ◽  
Vol 117 (18) ◽  
Author(s):  
Sergei V. Isakov ◽  
Guglielmo Mazzola ◽  
Vadim N. Smelyanskiy ◽  
Zhang Jiang ◽  
Sergio Boixo ◽  
...  
Keyword(s):  
Monte Carlo ◽  
Monte Carlo Simulations ◽  
Quantum Monte Carlo ◽  
Quantum Tunneling ◽  
Quantum Monte Carlo Simulations

MATHEMATICAL BASIS OF COMPUTATIONAL PHYSICS

1996 ◽  
Vol 07 (03) ◽  
pp. 355-359 ◽  
Author(s):  
M. SUZUKI
Keyword(s):  
Monte Carlo ◽  
Monte Carlo Simulations ◽  
Quantum Monte Carlo ◽  
Computational Physics ◽  
Numerical Calculations ◽  
Symplectic Integration ◽  
Mathematical Basis ◽  
Small Parameters ◽  
Quantum Monte Carlo Simulations

The present paper explains some general basic formulas concerning quantum Monte Carlo simulations, symplectic integration and other numerical calculations. A generalization of the BCH formula is given with an application to the decomposition of exponential operators in the presence of small parameters.

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