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arXiv · cond-mat/0510189

RSFQ devices with selective dissipation for quantum information processing

J. Hassel·H. Seppa·P. Helisto
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Abstract

We study the possibility to use frequency dependent damping in RSFQ circuits as means to reduce dissipation and consequent decoherence in RSFQ/qubit circuits. We show that stable RSFQ operation can be achieved by shunting the Josephson junctions with an $RC$ circuit instead of a plain resistor. We derive criteria for the stability of such an arrangement, and discuss the effect on decoherence and the optimisation issues. We also design a simple flux generator aimed at manipulating flux qubits.

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J. Hassel, H. Seppa, P. Helisto. 2005-10-07. RSFQ devices with selective dissipation for quantum information processing. https://doi.org/10.1063/1.2382733

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