Comment on the average potential of a Wigner solid
- 15 December 1981
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 24 (12) , 7412-7414
- https://doi.org/10.1103/physrevb.24.7412
Abstract
Ihm and Cohen have stated that it is not true that the zero of potential in a Wigner solid is arbitrary. We argue that it is arbitrary by demonstrating that the value obtained depends on how one performs a conditionally convergent Coulomb summation. We also derive the formula for the zero of energy in a semi-infinite crystal where it is a well-defined quantity.Keywords
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