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quant-ph2026
Exploring bosonic bound states with parallel reaction coordinates
Guan-Yu Lai, Friedemann Queißer, Gernot Schaller
Bound states are dissipation-resilient states that may emerge when quantum systems are strongly coupled to reservoirs with band gaps. We analyze an exactly solvable bosonic model f…
quant-ph2025
Quantum Zeno effect versus adiabatic quantum computing and quantum annealing
Naser Ahmadiniaz, Dennis Kraft, Gernot Schaller +1
For the adiabatic version of Grover's quantum search algorithm as proposed by Roland and Cerf, we study the impact of decoherence caused by a rather general coupling to some enviro…
quant-ph2023
Floquet analysis of a superradiant many-qutrit refrigerator
Dmytro Kolisnyk, Friedemann Queisser, Gernot Schaller +1
We investigate superradiant enhancements in the refrigeration performance of a set of three-level systems that are collectively coupled to a hot and a cold thermal reservoir an…