33 citations · 92 across the 10 of their papers we have counts for
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Kondo destruction quantum critical point: fixed point annihilation and thermodynamic stability
Yiming Wang, Lei Chen, Haoyu Hu +4
A wide range of strongly correlated electron systems exhibit strange metallicity, and they are increasingly recognized as in proximity to correlation-driven localization-delocaliza…
Unconventional Superconductivity from Fermi Surface Fluctuations in Strongly Correlated Metals
Haoyu Hu, Ang Cai, Lei Chen +4
In quantum materials, electrons that have strong correlations tend to localize, leading to quantum spins as the building blocks for low-energy physics. When strongly correlated ele…
Spin-singlet and spin-triplet pairing correlations in antiferromagnetically coupled Kondo systems
Haoyu Hu, Ang Cai, Lei Chen +1
Recent experiments in quantum critical heavy fermion metals have pushed to the fore the question about whether antiferromagnetic fluctuations can promote both spin-singlet and spin…
Quantum Criticality and Dynamical Kondo Effect in an SU(2) Anderson Lattice Model
H. Hu, A. Cai, Q. Si
Metallic quantum criticality often develops in strongly correlated systems with local effective degrees of freedom. In this work, we consider an Anderson lattice model with SU(2) s…
Dynamical Kondo effect and Kondo destruction in effective models for quantum-critical heavy fermion metals
Ang Cai, Haoyu Hu, Kevin Ingersent +2
Quantum criticality in certain heavy-fermion metals is believed to go beyond the Landau framework of order-parameter fluctuations. In particular, there is considerable evidence for…
Bose-Fermi Anderson Model with SU(2) Symmetry: Continuous-Time Quantum Monte Carlo Study
Ang Cai, Qimiao Si
In quantum critical heavy fermion systems, local moments are coupled to both collective spin fluctuations and conduction electrons. As such, the Bose-Fermi Kondo model, describing…
Dynamical scaling of charge and spin responses at a Kondo destruction quantum critical point
Ang Cai, Zuodong Yu, Haoyu Hu +2
Quantum critical points often arise in metals perched at the border of an antiferromagnetic order. The recent observation of singular and dynamically scaling charge conductivity in…
Sequential localization of a complex electron fluid
V. Martelli, A. Cai, E. M. Nica +13
Complex and correlated quantum systems with promise for new functionality often involve entwined electronic degrees of freedom. In such materials, highly unusual properties emerge…
Critical local moment fluctuations and enhanced pairing correlations in a cluster Anderson model
Ang Cai, J. H. Pixley, Kevin Ingersent +1
The appearance of unconventional superconductivity near heavy-fermion quantum critical points (QCPs) motivates investigation of pairing correlations close to a ``beyond Landau'' Ko…
Cluster Extended Dynamical Mean Field Approach and Unconventional Superconductivity
J. H. Pixley, Ang Cai, Qimiao Si
The extended dynamical mean field theory has played an important role in the study of quantum phase transitions in heavy fermion systems. In order to incorporate the physics of unc…