Q
Qimiao Si
Researcher at Rice University
Publications - 361
Citations - 14632
Qimiao Si is an academic researcher from Rice University. The author has contributed to research in topics: Quantum critical point & Quantum phase transition. The author has an hindex of 52, co-authored 331 publications receiving 12546 citations. Previous affiliations of Qimiao Si include University of Illinois at Urbana–Champaign & Chinese Academy of Sciences.
Papers
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Quantum criticality in heavy-fermion metals
TL;DR: In this paper, the authors summarize some of the basic issues, including the extent to which the quantum criticality in heavy-fermion metals goes beyond the standard theory of order-parameter fluctuations, the nature of the Kondo effect in the quantum-critical regime, the non-Fermi-liquid phenomena that accompany quantum criticalities and the interplay between quantum criticalness and unconventional superconductivity.
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Locally critical quantum phase transitions in strongly correlated metals
TL;DR: The theoretical finding of a locally critical quantum phase transition in a model of heavy fermions is reported, and local criticality is proposed to be a phenomenon of general relevance to strongly correlated metals.
Locally critical quantum phase transitions in strongly correlated metals
TL;DR: In this article, the authors reported a locally critical quantum phase transition in a model of heavy fermions and proposed local criticality to be a phenomenon of general relevance to strongly correlated metals.
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Strong Correlations and Magnetic Frustration in the High Tc Iron Pnictides
Qimiao Si,Elihu Abrahams +1 more
TL;DR: The iron pnictides are considered in terms of a proximity to a Mott insulator, and the exchange interactions favor a d-wave superconducting order parameter; in the notation appropriate for the Fe square lattice, its orbital symmetry is dxy.
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How do Fermi liquids get heavy and die
TL;DR: In this article, the authors discuss non-Fermi liquid and quantum critical behaviour in heavy-fermion materials, focusing on the mechanism by which the electron mass appears to diverge at the quantum critical point.