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The phase problem and its relation to the spin-glass problem (1991)

Venkatesan, R.

[S.l.] : International Union of Crystallography (IUCr)

Acta crystallographica 47 (1991), S. 400-404

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ISSN: 1600-5724

Source: Crystallography Journals Online : IUCR Backfile Archive 1948-2001

Topics: Chemistry and Pharmacology , Geosciences , Physics

Notes: The maximum-entropy method of image reconstruction is discussed in the context of the crystallographic phase problem. Entropy is the function to be maximized in a space of phases which has dimension equal to the number of structure-factor constraints. The function ∫ [1 − exp (−ρ/ρ0)] dV is proposed as a suitable one. An analogy between the phase problem and the spin-glass problem of condensed-matter physics is discussed. This analogy has instigated a study of the geometry of the entropy surface in the space of unknown phases for a simple model and preliminary results are presented.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1107/S0108767391002295

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