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Quantum critical phenomena
par - 9 mars 2017
This topic preoccupied me during the graduate years at Rutgers with Piers Coleman, and for some time afterwards. In particular, we studied the pairbreaking disorder-driven quantum phase transition between a superconductor and a normal metal :
RR and P. Coleman, Phys. Rev. Lett. 79, 3752 (1997)
We also had good luck of hearing Gabriel Aeppli’s talk on his and Almut Schröder’s neutron scattering data on gold-doped CeCu6, which lead us to the development of the phenomenology of local quantum criticality :
A. Schröder, G. Aeppli, E. Bucher, RR, and P. Coleman, Phys. Rev. Lett. 80, 5623 (1998)
P. Coleman, C. Pépin, Q. Si and RR, Journal of Physics : Condensed Matter 13, R723 (2001)