14 citations · 28 across the 9 of their papers we have counts for
9 papers
Spin-incoherent Mott-Thouless pumps
Ajesh Kumar, Urban F. P. Seifert, Erez Berg +1
A Thouless pump describes a system in which a quantized amount of charge is transported by one lattice spacing per cycle when the parameters of a Hamiltonian are varied slowly and…
Exchange-frustrated quadrupoles on the honeycomb lattice: Flavor-wave spectra, classical degeneracies and parton constructions
Partha Sarker, Han Ma, Urban F. P. Seifert
We study the quadrupolar Kitaev model, an honeycomb-lattice model with frustrated bond-dependent quadrupolar interactions. Using complementary methods and expanding around co…
Topologically enabled superconductivity: possible implications for rhombohedral graphene
Francesca Paoletti, Daniele Guerci, Giorgio Sangiovanni +2
We present a topological mechanism for superconductivity emerging from Chern-2 insulators. While, naively, time-reversal symmetry breaking is expected to prevent superconductivity,…
Projectively implemented altermagnetism in an exactly solvable quantum spin liquid
Avedis Neehus, Achim Rosch, Johannes Knolle +1
Altermagnets are a new class of symmetry-compensated magnets with large spin splittings. Here, we show that the notion of altermagnetism extends beyond the realm of Landau-type ord…
Fractionalized Superconductivity Mediated by Majorana Fermions in the Kitaev-Kondo Lattice
Matthew Bunney, Urban F. P. Seifert, Stephan Rachel +1
Superconductivity usually emerges from a metallic normal state which follows the Fermi-liquid paradigm. If, in contrast, the normal state is a fractionalized non-Fermi liquid, then…
Stability of algebraic spin liquids coupled to quantum phonons
Francesco Ferrari, Josef Willsher, Urban F. P. Seifert +2
Algebraic spin liquids are quantum disordered phases of insulating magnets which exhibit fractionalized gapless excitations and power-law correlations. Quantum spin liquids in this…
Spin-Peierls instability of deconfined quantum critical points
David Hofmeier, Josef Willsher, Urban F. P. Seifert +1
Deconfined quantum critical points (DQCPs) are putative phase transitions beyond the Landau paradigm with emergent fractionalized degrees of freedom. The original example of a DQCP…
Topological Green's function zeros in an exactly solved model and beyond
Steffen Bollmann, Chandan Setty, Urban F. P. Seifert +1
The interplay of topological electronic band structures and strong interparticle interactions provides a promising path towards the constructive design of robust, long-range entang…
Topological and magnetic phase transitions in the bilayer Kitaev-Ising model
Aayush Vijayvargia, Urban F. P. Seifert, Onur Erten
We investigate the phase diagram of a bilayer Kitaev honeycomb model with Ising interlayer interactions, deriving effective models via perturbation theory and performing Majorana m…