34 citations · 69 across the 6 of their papers we have counts for
6 papers
Zeeman Pumping of Higgs Bosons in the Balian--Werthamer State
Qiao-Ru Xu
Based on equations of motion of an SO(5) pseudo-spin, we demonstrate a quantum quench protocol using the magnetic pulse to excite an heavy Higgs boson in the Ba…
Effective Theory of Fermion Quartet Condensation
Qiao-Ru Xu, Congjun Wu
We develop a theory of superconductivity (or superfluidity) based on condensed fermion quartets focusing on the dilute spin- systems at zero temperature. In the spirit…
Quantum Quenches of an SO(5) Pseudospin Reveal Higgs Bosons
Qiao-Ru Xu, Gerardo Ortiz
Controlled dynamical probe measurement of complex order parameter fluctuations may reveal its massive collective excitations. Here, we design dynamical quench protocols to excite i…
Bloch and Bethe ansatze for the Harper model: A butterfly with a boundary
Qiao-Ru Xu, Emilio Cobanera, Gerardo Ortiz
Based on a recent generalization of Bloch's theorem, we present a Bloch ansatz for the Harper model with an arbitrary rational magnetic flux in various geometries, and solve the as…
Squaring the fermion: The threefold way and the fate of zero modes
Qiao-Ru Xu, Vincent P. Flynn, Abhijeet Alase +3
We investigate topological properties and classification of mean-field theories of stable bosonic systems. Of the three standard classifying symmetries, only time-reversal represen…
Ferroelectric Ferrimagnetic LiFeF: Charge Ordering Mediated Magnetoelectricity
Ling-Fang Lin, Qiao-Ru Xu, Yang Zhang +3
Trirutile-type LiFeF is a charge-ordered material with Fe/Fe configuration. Here its physical properties, including magnetism, electronic structure, phase tra…