528 citations · 1.8k across the 61 of their papers we have counts for
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On flat bands in the -- XXZ sawtooth chain
Vadim Ohanyan, Johannes Richter, Michael Sekania +3
We consider a generalization of the XXZ model on the sawtooth spin chain with Dzyaloshinskii-Moriya interactions in which all exchange constants (symmetric, antisymmetric, and axia…
Collective quantum phases in frustrated arrays of Josephson junctions
M. V. Fistul, O. Neyenhuys, B. Pernack +3
We study collective quantum phases and quantum phase transitions occurring in frustrated sawtooth arrays of small quantum Josephson junctions. Frustration is introduced through the…
Trapping Hard-Core Bosons in Flatband Lattices
Sanghoon Lee, Alexei Andreanov, Tigran Sedrakyan +1
We investigate 1D and 2D cross-stitch lattices with hard-core bosons and analytically construct exact groundstates that feature macroscopic degeneracy. The construction relies on t…
Delayed Thermalization in Mass-Deformed SYK
Dillip Kumar Nandy, Tilen Cadez, Barbara Dietz +2
We study the thermalizing properties of the mass-deformed SYK model, in a regime of parameters where the eigenstates are ergodically extended over just portions of the full Fock sp…
Random Coulomb antiferromagnets: from diluted spin liquids to Euclidean random matrices
J. Rehn, Arnab Sen, Alexei Andreanov +3
We study a disordered classical Heisenberg magnet with uniformly antiferromagnetic interactions which are frustrated on account of their long-range Coulomb form, {\em i.e.} $J(r)\s…