On Born’s Conjecture about Optimal Distribution of Charges for an Infinite Ionic Crystal

Publikation: Bidrag til tidsskriftTidsskriftartikelfagfællebedømt

Dokumenter

  • Laurent Bétermin
  • Hans Knüpfer
We study the problem for the optimal charge distribution on the sites of a fixed Bravais lattice. In particular, we prove Born’s conjecture about the optimality of the rock salt alternate distribution of charges on a cubic lattice (and more generally on a d-dimensional orthorhombic lattice). Furthermore, we study this problem on the two-dimensional triangular lattice and we prove the optimality of a two-component honeycomb distribution of charges. The results hold for a class of completely monotone interaction potentials which includes Coulomb-type interactions for d≥3. In a more general setting, we derive a connection between the optimal charge problem and a minimization problem for the translated lattice theta function.
OriginalsprogEngelsk
TidsskriftJournal of Nonlinear Science
Vol/bind28
Udgave nummer5
Sider (fra-til)1629–1656
ISSN0938-8974
DOI
StatusUdgivet - 16 apr. 2018

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