527 citations · 5.8k across the 128 of their papers we have counts for
4 papers · 2 filters
Chiral Y junction of quantum spin chains
F. Buccheri, R. Egger, R. G. Pereira +1
We study a Y junction of spin-1/2 Heisenberg chains with an interaction that breaks both time-reversal and chain exchange symmetries, but not their product nor SU(2) symmetry. The…
Non-Topological Majorana Zero Modes in Inhomogeneous Spin Ladders
Neil J. Robinson, Alexander Altland, Reinhold Egger +6
We show that the coupling of homogeneous Heisenberg spin-1/2 ladders in different phases leads to the formation of interfacial zero energy Majorana bound states. Unlike Majorana bo…
Parafermionic generalization of the topological Kondo effect
Kyrylo Snizhko, Francesco Buccheri, Reinhold Egger +1
We propose and study a parafermionic generalization of the topological Kondo effect. The latter has been predicted to arise for a Coulomb-blockaded mesoscopic topological supercond…
Quantum spin circulator in Y junctions of Heisenberg chains
F. Buccheri, R. Egger, R. G. Pereira +1
We show that a quantum spin circulator, a nonreciprocal device that routes spin currents without any charge transport, can be achieved in Y junctions of identical spin- Heisen…