6 papers
Topological phase transitions between bosonic and fermionic quantum Hall states near even-denominator filling factors
Evgenii Zheltonozhskii, Ady Stern, Netanel H. Lindner
We study the quantum critical point between the fermionic quantum Hall state and the bosonic quantum Hall state of Cooper pairs. Our study is motivated by the composi…
Electromagnetic Response of a Half-Filled Chern Band near Topological Criticality
Xinlei Yue, Fabian Pichler, Michael Knap +1
We evaluate electromagnetic-response observables in a half-filled Chern band, across a topological phase transition between a composite Fermi liquid (CFL) and a Fermi liquid (FL) p…
Flux attachment theory of fractional excitonic insulators
Steven Gassner, Ady Stern, C. L. Kane
The search for fractional quantized Hall phases in the absence of a magnetic field has primarily targeted flat-band systems that mimic the features of a Landau level. In an alterna…
Compressible quantum liquid with vanishing Drude weight
Ahmed Abouelkomsan, Nisarga Paul, Ady Stern +1
We explore the possibility of quantum liquids that are compressible but have vanishing DC conductivity in the absence of disorder. We show that the composite Fermi liquid emerging…
Universal charge conductance at Abelian--non-Abelian quantum Hall interfaces
Misha Yutushui, Ady Stern, David F. Mross
Multiple topologically distinct quantum Hall phases can occur at the same Landau level filling factor. It is a major challenge to distinguish between these phases as they only diff…
Identifying the topological order of quantized half-filled Landau levels through their daughter states
Evgenii Zheltonozhskii, Ady Stern, Netanel H. Lindner
Fractional quantum Hall states at a half-filled Landau level are believed to carry an integer number of chiral Majorana edge modes, reflected in their thermal Hall co…