Stochastic Gradient Approximation: An Efficient Method to Optimize Many-Body Wave Functions

Harju, A.; Barbiellini, B.; Siljamäki, S.; Nieminen, Risto M.; Ortiz, G.

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Stochastic Gradient Approximation: An Efficient Method to Optimize Many-Body Wave Functions

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Title:	Stochastic Gradient Approximation: An Efficient Method to Optimize Many-Body Wave Functions
Author(s):	Harju, A. ; Barbiellini, B. ; Siljamäki, S. ; Nieminen, Risto M. ; Ortiz, G.
Date:	1997
Language:	en
Pages:	1173-1177
Department:	Teknillisen fysiikan laitos Department of Applied Physics
Series:	Physical Review Letters, Volume 79, Issue 7
ISSN:	0031-9007 (printed)
DOI-number:	10.1103/physrevlett.79.1173
Subject:	Physics
Keywords:	many-body wave functions, stochastic functions, noise
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Citation: Harju, A. & Barbiellini, B. & Siljamäki, S. & Nieminen, Risto M. & Ortiz, G. 1997. Stochastic Gradient Approximation: An Efficient Method to Optimize Many-Body Wave Functions. Physical Review Letters. Volume 79, Issue 7. 1173-1177. ISSN 0031-9007 (printed). DOI: 10.1103/physrevlett.79.1173.
Abstract: A novel, efficient optimization method for physical problems is presented. The method utilizes the noise inherent in stochastic functions. As an application, an algorithm for the variational optimization of quantum many-body wave functions is derived. The numerical results indicate superior performance when compared to traditional techniques.
Rights: © 1997 American Physical Society (APS). This is the accepted version of the following article: Harju, A. & Barbiellini, B. & Siljamäki, S. & Nieminen, Risto M. & Ortiz, G. 1997. Stochastic Gradient Approximation: An Efficient Method to Optimize Many-Body Wave Functions. Physical Review Letters. Volume 79, Issue 7. 1173-1177. ISSN 0031-9007 (printed). DOI: 10.1103/physrevlett.79.1173, which has been published in final form at http://journals.aps.org/prl/abstract/10.1103/PhysRevLett.79.1173.
Permanent link to this item: http://urn.fi/URN:NBN:fi:aalto-201509024195 Email this Export to RefWorks QR Code Print BibTex Tweet

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