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Space-time method for it ab initio calculations of self-energies and dielectric response functions of solids

Rojas, H.N., Godby, R.W. and Needs, R.J. (1995) Space-time method for it ab initio calculations of self-energies and dielectric response functions of solids. Physical Review Letters, 74 (10). pp. 1827-1830. ISSN 0031-9007

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Abstract

We present a new method for efficient, accurate calculations of many-body properties of periodic systems. The main features are (i) use of a real-space/imaginary-time representation, (ii) avoidance of any model form for the screened interaction W, (iii) exact separation of W and the self-energy Σ into short- and long-ranged parts, and (iv) the use of novel analytical continuation techniques in the energy domain. The computer time scales approximately linearly with system size. We give results for jellium and silicon, including the spectral function of silicon obtained from the Dyson equation.

Item Type: Article
Copyright, Publisher and Additional Information: © 1995 American Physical Society.
Institution: The University of York
Academic Units: The University of York > Physics (York)
Depositing User: Physics Import
Date Deposited: 25 Sep 2008 10:14
Last Modified: 25 Sep 2008 10:14
Published Version: http://link.aps.org/abstract/PRL/v74/p1827
Status: Published
Publisher: American Physical Society
Refereed: Yes
Identification Number: 10.1103/PhysRevLett.74.1827
Related URLs:
URI: http://eprints.whiterose.ac.uk/id/eprint/3990

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