68 citations · 146 across the 16 of their papers we have counts for
4 papers · 1 filter
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…
Thermalization slowing down of weakly nonintegrable quantum spin dynamics
Budhaditya Bhattacharjee, Alexei Andreanov, Sergej Flach
We study thermalization slowing down of a quantum many-body spin system upon approach to two distinct integrability limits. Motivated by previous studies of classical systems, we i…
Flat band fine-tuning and its photonic applications
Carlo Danieli, Alexei Andreanov, Daniel Leykam +1
Flat bands - single-particle energy bands - in tight-binding networks have attracted attention due to the presence of macroscopic degeneracies and their extreme sensitivity to pert…
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…