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quant-ph2026
Active quantum matter from monitored pure-state dynamics
Jacob F. Steiner, Felix von Oppen, Reinhold Egger
Quantum many-body systems coupled to out-of-equilibrium reservoirs can behave as active matter and exhibit signs of flocking. However, the resulting steady states are highly mixed…
quant-ph2025
Towards scalable active steering protocols for genuinely entangled state manifolds
Samuel Morales, Silvia Pappalardi, Reinhold Egger
We introduce and analyze an active steering protocol designed to target multipartite entangled states. The protocol involves multiple qubits subjected to weak Bell pair measurement…
quant-ph2024
Error threshold in active steering protocols for few-qubit systems
Nico Ackermann, Samuel Morales, Alfredo Levy Yeyati +2
We study active steering protocols for weakly measured qubits in the presence of error channels due to amplitude and phase noise. If the error rate is sufficiently small, the proto…