56 citations · 490 across the 33 of their papers we have counts for
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Topological transition in measurement-induced geometric phases
Valentin Gebhart, Kyrylo Snizhko, Thomas Wellens +3
The state of a quantum system, adiabatically driven in a cycle, may acquire a measurable phase depending only on the closed trajectory in parameter space. Such geometric phases are…
Non-Abelian Berry phase for open quantum systems: Topological protection vs geometric dephasing
Kyrylo Snizhko, Reinhold Egger, Yuval Gefen
We provide a detailed theoretical analysis of the adiabatic evolution of degenerate open quantum systems, where the dynamics is induced by time-dependent fluctuating loop paths in…
Non-Abelian Geometric Dephasing
Kyrylo Snizhko, Reinhold Egger, Yuval Gefen
We study the adiabatic dynamics of degenerate quantum states induced by loop paths in a control parameter space. The latter correspond to noisy trajectories if the system is weakly…