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 Quantum transitions induced by the third cumulant of current fluctuations


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We investigate the transitions induced by external current fluctuations on a small probe quantum system. The rates for the transitions between the energy states are calculated using the real-time Keldysh formalism for the density matrix evolution. We especially detail the effects of the third cumulant of current fluctuations inductively coupled to a quantum bit and propose a setup for detecting the frequency-dependent third cumulant through the transitions it induces.



Author: T. Ojanen; T. T. Heikkila

Source: https://archive.org/







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