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arXiv · 1405.1557

Exact decoherence dynamics of $1/f$ noise

Md. Manirul Ali·Ping-Yuan Lo·Wei-Min Zhang
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Abstract

In this paper, we investigate the exact decoherence dynamics of a superconducting resonator coupled to an electromagnetic reservoir characterized by the $1/f$ noise at finite temperature, where a full quantum description of the environment with $1/f^{x}$ noise (with $x \approx 1$) is presented. The exact master equation and the associated non-equilibrium Green's functions are solved exactly for such an open system. We show a clear signal of non-Markovian dynamics induced purely by $1/f$ noise. Our analysis is also applicable to another nano/micro mechanical oscillators. Finally, we demonstrate the non-Markovian decoherence dynamics of photon number superposition states using Wigner distribution that could be measured in experiments.

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Md. Manirul Ali, Ping-Yuan Lo, Wei-Min Zhang. 2014-10-06. Exact decoherence dynamics of $1/f$ noise. https://doi.org/10.1088/1367-2630%2F16%2F10%2F103010

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