MONTE-CARLO METHODS FOR THE NUCLEAR SHELL-MODEL

被引：111

作者：

JOHNSON, CW

KOONIN, SE

LANG, GH

ORMAND, WE

机构：

[1] W. K. Kellogg Radiation Laboratory, California Institute of Technology, Pasadena

来源：

PHYSICAL REVIEW LETTERS | 1992年 / 69卷 / 22期

关键词：

D O I：

10.1103/PhysRevLett.69.3157

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We present novel Monte Carlo methods for treating the interacting shell model that allow exact calculations much larger than those heretofore possible. The two-body interaction is linearized by an auxiliary field; Monte Carlo evaluation of the resulting functional integral gives ground-state or thermal expectation values of few-body operators. The "sign problem" generic to quantum Monte Carlo calculations is absent in a number of cases. We discuss the favorable scaling of these methods with nucleon number and basis size and their suitability to parallel computation.

引用

页码：3157 / 3160

页数：4

共 18 条

[1]

ALHASSID Y, LAUR92787 LOS AL REP

[2] STATIC PATH APPROXIMATION FOR THE NUCLEAR PARTITION-FUNCTION [J].

ARVE, P ;

BERTSCH, G ;

LAURITZEN, B ;

PUDDU, G .

ANNALS OF PHYSICS, 1988, 183 (02) :309-319

[3]

BROWN BA, 1988, ANNU REV NUCL PART S, V38, P29

[4]

ENGEL J, 40561078INT920712 I

[5] WEAK-INTERACTION RATES IN O-16 [J].

HAXTON, WC ;

JOHNSON, C .

PHYSICAL REVIEW LETTERS, 1990, 65 (11) :1325-1328

[6]

HAXTON WC, COMMUNICATION

[7]

LANG G, IN PRESS

[8] NUCLEAR RESPONSE FUNCTION AT FINITE TEMPERATURE [J].

LAURITZEN, B ;

NEGELE, JW .

PHYSICAL REVIEW C, 1991, 44 (02) :729-737

[9] STATIC PATH APPROXIMATION IN DEFORMED-NUCLEI [J].

LAURITZEN, B ;

BERTSCH, G .

PHYSICAL REVIEW C, 1989, 39 (06) :2412-2418

[10] THERMAL AND QUANTAL FLUCTUATIONS IN DEFORMED-NUCLEI [J].

LAURITZEN, B ;

PUDDU, G ;

BORTIGNON, PF ;

BROGLIA, RA .

PHYSICS LETTERS B, 1990, 246 (3-4) :329-332

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