Publikation: Extracting the lifetime of a synthetic two-level system
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The Kerr Parametric Oscillator (KPO) is a nonlinear resonator system that is often described as a synthetic two-level system. In the presence of noise, the system switches between two states via a fluctuating trajectory in phase space, instead of following a straight path. The presence of such fluctuating trajectories makes it hard to establish a precise count or even a useful definition, of the “lifetime” of the state. Addressing this issue, we compare several rate counting methods that allow to estimate a lifetime for the levels. In particular, we establish that a peak in the Allan variance of fluctuations can also be used to determine the levels' lifetime. Our work provides a basis for characterizing KPO networks for simulated annealing where an accurate determination of the state lifetime is of fundamental importance.
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MARGIANI, Gabriel, Sebastián GUERRERO, Toni L. HEUGEL, Christian MARTY, Raphael PACHLATKO, Thomas GISLER, Gabrielle D. VUKASIN, Hyun-Keun KWON, Oded ZILBERBERG, Alexander EICHLER, 2022. Extracting the lifetime of a synthetic two-level system. In: Applied Physics Letters. American Institute of Physics (AIP). 2022, 121(16), 164101. ISSN 0003-6951. eISSN 1077-3118. Available under: doi: 10.1063/5.0121595BibTex
@article{Margiani2022Extra-59278, year={2022}, doi={10.1063/5.0121595}, title={Extracting the lifetime of a synthetic two-level system}, number={16}, volume={121}, issn={0003-6951}, journal={Applied Physics Letters}, author={Margiani, Gabriel and Guerrero, Sebastián and Heugel, Toni L. and Marty, Christian and Pachlatko, Raphael and Gisler, Thomas and Vukasin, Gabrielle D. and Kwon, Hyun-Keun and Zilberberg, Oded and Eichler, Alexander}, note={Article Number: 164101} }
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