189 citations · 691 across the 21 of their papers we have counts for
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Anomalous quasiparticle lifetime in geometric quantum critical metals
Hao Song, Han Ma, Catherine Kallin +1
Metals can undergo geometric quantum phase transitions where the local curvature of the Fermi surface changes sign without a change in symmetry or topology. At the inflection point…
Symmetries and anomalies of Kitaev spin- models: Identifying symmetry-enforced exotic quantum matter
Ruizhi Liu, Ho Tat Lam, Han Ma +1
We analyze the internal symmetries and their anomalies in the Kitaev spin- models. Importantly, these models have a lattice version of a 1-form symmetry, denoted…
Hidden Critical Points in the Two-Dimensional model: Exact Numerical Study of a Complex Conformal Field Theory
Arijit Haldar, Omid Tavakol, Han Ma +1
The presence of nearby conformal field theories (CFTs) hidden in the complex plane of the tuning parameter was recently proposed as an elegant explanation for the ubiquity of "weak…
Fermi liquids beyond the forward scattering limit: the role of non-forward scatterings for scale invariance and instabilities
Han Ma, Sung-Sik Lee
Landau Fermi liquid theory is a fixed point theory of metals that includes the forward scattering amplitudes as exact marginal couplings. However, the fixed point theory that only…