Erratum: Quantum Critical End Point for the Kondo Volume Collapse Model [Phys. Rev. Lett. 97,185701 (2006)]

摘要

Reference [1] discusses the critical end point of a Kondo volume collapse transition in an f-electron system, with special focus on the regime where this end point is tuned to T = 0. It consists of two parts: (ⅰ) a mean field analysis of the Anderson lattice model for the volume collapse, and (ⅱ) an investigation of critical fluctuations that go beyond mean-field theory. The analysis of fluctuations was inspired by an analogy to critical fluctuations that occur at the critical end point of the liquid-vapor transition. However, as pointed out by Hackl and Vojta [2] and discussed in great clarity in Refs. [3-6], the existence of a finite shear modulus in rigid solids suppresses critical fluctuations at end points where the order parameter of the transition equals the volume (or couples bilinearly to the volume). At the volume collapse end point, the bulk modulus K vanishes. However, only the q = 0 order parameter mode is governed by the bulk modulus.