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Effects of nuclear spins on the coherent evolution of a phase qubit

Geordie Rose·Anatoly Yu. Smirnov
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Abstract

The role of nuclear spins in decoherence and dephasing of a solid state phase qubit is investigated. Both effects of static spin environment and spin polarization fluctuations in time are considered on the basis of non-Markovian Langevin-Bloch equations. We find conditions when coupling of a phase qubit to a bath of nuclear spins does not impair coherent evolution of the qubit.

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Geordie Rose, Anatoly Yu. Smirnov. 2001-09-10. Effects of nuclear spins on the coherent evolution of a phase qubit. https://doi.org/10.1088/0953-8984%2F13%2F48%2F327

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