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Lifshitz Transition and Quantum Criticality in an Extended Periodic Anderson Model
Lifshitz Transition Quantum Criticality Extended Periodic Anderson Model
2010/11/25
We study the quantum phase transition in f-electron systems as a quantum Lifshitz transition
driven by selective Mott localization in a realistic extended Anderson lattice model. Using DMFT,we find t...
Shape resonance for the anisotropic superconducting gaps near a Lifshitz transition: the effect of electron hopping between layers
Shape resonance anisotropic superconducting gaps effect of electron
2010/11/24
The multigap superconductivity modulated by quantum confinement effects in a superlattice of
quantum wells is presented. Our theoretical BCS approach captures the low-energy physics of a
shape reson...
Lifshitz transition in two-dimensional spin-density wave models
Lifshitz transition two-dimensional spin-density wave models
2010/11/23
We argue that both pocket-disappearing and neck-disrupting types of Lifshitz transitions can be
realized in two-dimensional spin-density wave models for underdoped cuprates, and study both
types of ...