208 citations · 2.3k across the 75 of their papers we have counts for
4 papers · 1 filter
The special role of the first Matsubara frequency for superconductivity near a quantum-critical point -- the non-linear gap equation below and spectral properties in real frequencies
Yi-Ming Wu, Artem Abanov, Yuxuan Wang +1
Near a quantum-critical point in a metal a strong fermion-fermion interaction, mediated by a soft boson, destroys fermionic coherence and also gives rise to superconductivity. In a…
Superconductivity above a quantum critical point in a metal -- gap closing vs gap filling, Fermi arcs, and pseudogap behavior
Artem Abanov, Yi-Ming Wu, Yuxuan Wang +1
We consider a quantum-critical metal with interaction mediated by fluctuations of a critical order parameter. This interaction gives rise to two competing tendencies -- pairing and…
Characterizing breathing dynamics of magnetic (anti-)skyrmions within the Hamiltonian formalism
B. F. McKeever, D. R. Rodrigues, D. Pinna +3
We derive an effective Hamiltonian system describing the low energy dynamics of circular magnetic skyrmions and antiskyrmions. Using scaling and symmetry arguments we model (anti-)…
Pairing in quantum-critical systems: , , and their ratio
Yi-Ming Wu, Artem Abanov, Andrey V. Chubukov
We compute the ratio of the pairing gap at and for a set of quantum-critical models in which the pairing interaction is mediated by a gapless boson with local susce…