Journal
INTERNATIONAL JOURNAL OF MODERN PHYSICS B
Volume 14, Issue 29-31, Pages 3719-3734Publisher
WORLD SCIENTIFIC PUBL CO PTE LTD
DOI: 10.1142/S0217979200004271
Keywords
-
Ask authors/readers for more resources
We describe a search for renormalization group fixed points which control a second-order quantum phase transition between a d(x2-y2) superconductor and some other superconducting ground state. Only a few candidate fixed points are found. In the finite temperature (T) quantum-critical region of some of these fixed points, the fermion quasiparticle lifetime is very short and the spectral function has an energy width of order k(B)T near the Fermi points. Under the same conditions, the thermal conductivity is infinite in the scaling limit. We thus provide simple, explicit, examples of quantum theories in two dimensions for which a purely fermionic quasiparticle description of transport is badly violated.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available