Published 1993 | Version v1
Report Open

Monte Carlo simulations with indefinite and complex-valued measures

Description

A method is presented to tackle the sign problem in the simulations of systems having indefinite or complex-valued measures. In general, this new approach is shown to yield statistical errors smaller than the crude Monte Carlo using absolute values of the original measures. Exactly solvable, one-dimensional Ising models with complex temperature and complex activity illustrate the considerable improvements and the workability of the new method even when the crude one fails. 7 refs., 3 tabs., 2 figs

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MF available from INIS under the Report Number.

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Additional details

Publishing Information

Imprint Pagination
9 p.
Report number
UM-P--93/70

INIS

Country of Publication
Australia
Country of Input or Organization
Australia
INIS RN
25075228
Subject category
S71: CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; S99: GENERAL AND MISCELLANEOUS;
Resource subtype / Literary indicator
Numerical Data
Descriptors DEI
COMPUTERIZED SIMULATION; DATA COVARIANCES; DATA PROCESSING; EVALUATED DATA; ISING MODEL; MONTE CARLO METHOD; ONE-DIMENSIONAL CALCULATIONS
Descriptors DEC
CALCULATION METHODS; CRYSTAL MODELS; DATA; INFORMATION; MATHEMATICAL MODELS; NUMERICAL DATA; SIMULATION

Optional Information