440 citations · 7k across the 189 of their papers we have counts for
14 papers · 1 filter
Finite-momentum superconductivity with singlet-triplet mixing in an altermagnetic metal: A pairing instability analysis
Hui Hu, Zhao Liu, Jia Wang +2
We analyze the pairing instability of an altermagnetic metal on a square lattice driven by an attractive nearest-neighbor interaction. This interaction enables multiple pairing cha…
Altermagnetism-driven FFLO superconductivity in finite-filling 2D lattices
Xia-Ji Liu, Hui Hu
We systematically investigate the emergence of finite-momentum Fulde-Ferrell-Larkin-Ovchinnikov (FFLO) superconductivity in a square lattice Hubbard model with finite filling, driv…
Finite-momentum bound pairs of two electrons in an altermagnetic metal
Hui Hu, Zhao Liu, Jia Wang +1
We solve the two-electron problem on a square lattice with d-wave altermagnetism, considering both on-site and nearest-neighbor attractive interactions. The altermagnetic spin-spli…
Altermagnetism and Superconductivity: A Short Historical Review
Zhao Liu, Hui Hu, Xia-Ji Liu
This review is organized into three parts. In the first part, we explore the deep interconnections among three seemingly unrelated concepts in condensed matter physics: electronic…
Fulde-Ferrell-Larkin-Ovchinnikov States and Topological Bogoliubov Fermi Surfaces in Altermagnets: an Analytical Study
Zhao Liu, Hui Hu, Xia-ji Liu
We present an analytical study of the ground-state phase diagram for dilute two-dimensional spin-1/2 Fermi gases exhibiting -wave altermagnetic spin splitting under -wave pai…
Quantum Lifshitz points in an altermagnetic metal
Hui Hu, Xia-Ji Liu
We predict the existence of two tri-critical quantum Lifshitz points in recently discovered -wave altermagnetic metals subjected to an external magnetic field. These points conn…
Unconventional superconductivity of an altermagnetic metal: Polarized BCS and inhomogeneous Fulde-Ferrell-Larkin-Ovchinnikov states
Hui Hu, Zhao Liu, Xia-Ji Liu
We investigate the superconductivity of two-dimensional spin-1/2 Fermi systems with -wave altermagnetism under external magnetic field near zero temperature. At large altermagne…
Multi-component strongly attractive Fermi gas: a color superconductor in a one-dimensional harmonic trap
Xia-Ji Liu, Hui Hu, Peter D. Drummond
Recent advances in ultra-cold atomic Fermi gases make it possible to achieve a fermionic superfluid with multiple spin components. In this context, any mean-field description is ex…
Josephson effect in an atomic Fulde-Ferrell-Larkin-Ovchinnikov superfluid
Hui Hu, Xia-Ji Liu
We study theoretically two spatially separate quasi-one-dimensional atomic Fermi gases in a double-well trap. By tuning independently their spin polarizations, a Fulde-Ferrell-Lark…
Phase diagram of a strongly interacting polarized Fermi gas in one dimension
Hui Hu, Xia-Ji Liu, Peter D. Drummond
Based on the integrable Gaudin model and local density approximation, we discuss the phase structure of one-dimensional trapped Fermi gases with imbalanced spin populations for arb…
Density fingerprint of giant vortices in Fermi gases near a Feshbach resonance
Hui Hu, Xia-Ji Liu
The structure of multiply quantized or giant vortex states in atomic Fermi gases across a Feshbach resonance is studied within the context of self-consistent Bogoliubov-de Gennes t…
Visualization of vortex bound states in polarized Fermi gases at unitarity
Hui Hu, Xia-Ji Liu, Peter D. Drummond
We analyse theoretically a single vortex in 3D trapped atomic Fermi gases with population polarization near a broad Feshbach resonance. Above a critical polarization the Andreev-li…
Temperature of a trapped unitary Fermi gas at finite entropy
Hui Hu, Xia-Ji Liu, Peter D. Drummond
We present theoretical predictions for the equation of state of a harmonically-trapped Fermi gas in the unitary limit. Our calculations rest on a study of the equation of state of…
Equation of state of a superfluid Fermi gas in the BCS-BEC crossover
Hui Hu, Xia-Ji Liu, Peter D. Drummond
We present a theory for a superfluid Fermi gas near the BCS-BEC crossover, including pairing fluctuation contributions to the free energy similar to that considered by Nozieres and…