Wigner-distribution- and Greens-function approach to quantum corrections and implications for the melting temperature of two-dimensional Wigner crystals
Quantum corrections to the behavior of a nearly classical system may be determined via the Greens-function formalism, or via the Wigner-distribution- function (WDF) method. Recently, it appeared that there is a serious discrepancy between the results obtained by these methods for the melting temperature of the two-dimensional Wigner crystal. We resolve this problem by showing that the effective-potential technique of implementing the WDF method is invalid, and we present a correct approach. © 1985 The American Physical Society.
Publication Source (Journal or Book title)
Physical Review B
Dickman, R., & Oconnell, R. (1985). Wigner-distribution- and Greens-function approach to quantum corrections and implications for the melting temperature of two-dimensional Wigner crystals. Physical Review B, 32 (1), 471-473. https://doi.org/10.1103/PhysRevB.32.471