Exploring Ground States of Quantum Spin Glasses by Quantum Monte Carlo Method

2010 ◽  
pp. 235-249 ◽  
Author(s):  
A.K. Chandra ◽  
A. Das ◽  
J. Inoue ◽  
B.K. Chakrabarti
Keyword(s):  
Monte Carlo ◽  
Monte Carlo Method ◽  
Quantum Monte Carlo ◽  
Spin Glasses ◽  
Ground States ◽  
Quantum Spin ◽  
Quantum Monte Carlo Method

PARALLELIZATION OF THE WORLDLINE QUANTUM MONTE CARLO METHOD

1992 ◽  
Vol 03 (01) ◽  
pp. 61-78 ◽  
Author(s):  
J.E. GUBERNATIS ◽  
W.R. SOMSKY
Keyword(s):  
Monte Carlo ◽  
Monte Carlo Method ◽  
Quantum Monte Carlo ◽  
Data Representation ◽  
Quantum Spin ◽  
Computational Technique ◽  
Interprocessor Communication ◽  
Quantum Spin Systems ◽  
Spinless Fermion ◽  
Quantum Monte Carlo Method

The worldline quantum Monte Carlo method is a computational technique for studying the properties of many-electron and quantum-spin systems. In this paper, we describe our efforts in developing an efficient implementation of this method for the massively-parallel Connection Machine CM-2. We discuss why one must look beyond the obvious parallelism in the method in order to reduce interprocessor communication and increase processor utilization, and how these goals may be achieved using a plaquette-based data representation. We also present performance statistics for our implementation and sample calculations for the spinless fermion model.

scholarly journals Constrained Path Quantum Monte Carlo Method for Fermion Ground States

1995 ◽  
Vol 74 (18) ◽  
pp. 3652-3655 ◽  
Author(s):  
Shiwei Zhang ◽  
J. Carlson ◽  
J. E. Gubernatis
Keyword(s):  
Monte Carlo ◽  
Monte Carlo Method ◽  
Quantum Monte Carlo ◽  
Ground States ◽  
Quantum Monte Carlo Method

Released-phase quantum Monte Carlo method

1997 ◽  
Vol 55 (5) ◽  
pp. 6202-6210 ◽  
Author(s):  
Matthew D. Jones ◽  
Gerardo Ortiz ◽  
David M. Ceperley
Keyword(s):  
Monte Carlo ◽  
Monte Carlo Method ◽  
Quantum Monte Carlo ◽  
Quantum Monte Carlo Method
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