76 citations · 223 across the 7 of their papers we have counts for
7 papers
Kondo Destruction and Quantum Criticality in Kondo Lattice Systems
Qimiao Si, J. H. Pixley, Emilian Nica +4
Considerable efforts have been made in recent years to theoretically understand quantum phase transitions in Kondo lattice systems. A particular focus is on Kondo destruction, whic…
3D Non-Abelian Anyons: Degeneracy Splitting and Detection by Adiabatic Cooling
Seiji J. Yamamoto, Michael Freedman, Kun Yang
3D non-abelian anyons have been theoretically proposed to exist in heterostructures composed of type II superconductors and topological insulators. We use realistic material parame…
Global Phase Diagram of the Kondo Lattice: From Heavy Fermion Metals to Kondo Insulators
Seiji J. Yamamoto, Qimiao Si
We discuss the general theoretical arguments advanced earlier for the T=0 global phase diagram of antiferromagnetic Kondo lattice systems, distinguishing between the established an…
Renormalization Group for Mixed Fermion-Boson Systems
Seiji J. Yamamoto, Qimiao Si
We formulate a momentum-shell renormalization group (RG) procedure that can be used in theories containing both bosons and fermions with a Fermi surface. We focus on boson-fermion…
Metallic Ferromagnetism in the Kondo Lattice
Seiji J. Yamamoto, Qimiao Si
Metallic magnetism is both ancient and modern, occurring in such familiar settings as the lodestone in compass needles and the hard drive in computers. Surprisingly, a rigorous the…
Fermi Surface and Magnetism in the Kondo lattice: A Continuum Field Theory Approach
Seiji J. Yamamoto, Qimiao Si
We consider the Fermi surface inside the antiferromagnetic ordered region of a Kondo lattice system in an arbitrary dimension higher than one. We establish the existence of ${\rm A…
Fermi surface and antiferromagnetism in the Kondo lattice: an asymptotically exact solution in d>1 Dimensions
Seiji J. Yamamoto, Qimiao Si
Interest in the heavy fermion metals has motivated us to examine the quantum phases and their Fermi surfaces within the Kondo lattice model. We demonstrate that the model is solubl…