8 papers
Nonequilibrium steady states induced by stochastic mid-circuit measurements and resets on a quantum computer
Jakob Murauer, Sabine Tornow, Gabriele Perfetto
Stochastic resetting has emerged as a versatile protocol to drive quantum many-body systems to non-equilibrium steady states by interspersing unitary dynamics with measurements and…
Fractionally Quantized Recurrence Detection Times in Monitored Quantum Many-Body Systems
Quancheng Liu, Sabine Tornow, David A. Kessler +1
Recurrence time quantifies the duration required for a physical system to return to its initial state, playing a pivotal role in understanding the predictability of complex systems…
Monitoring of quantum walks with weak measurements
Klaus Ziegler, Tim Heine, Sabine Tornow
Measurements can be used to monitor the evolution of quantum systems and can give rise to quantized return statistics. It is known that the mean return time is quantized for strong…
Resonances, Recurrence Times and Steady States in Monitored Noisy Qubit Systems
Shuanger Ma, Sabine Tornow, Eli Barkai
We study non-equilibrium steady states and recurrence times in noisy, stroboscopically monitored qubit systems using complete measurements. In the noiseless limit, recurrence times…
Feedback Connections in Quantum Reservoir Computing with Mid-Circuit Measurements
Jakob Murauer, Rajiv Krishnakumar, Sabine Tornow +1
Existing approaches to quantum reservoir computing can be broadly categorized into restart-based and continuous protocols. Restart-based methods require reinitializing the quantum…
Quantum Walks: First Hitting Times with Weak Measurements
Tim Heine, Eli Barkai, Klaus Ziegler +1
We study the first detected recurrence time problem of continuous-time quantum walks on graphs. While previous works have employed projective measurements to determine the first re…