Simple Phase Bias for Superconducting Circuits
J. B. Majer, J. R. Butcher, J. E. Mooij
Abstract
A phase-bias tool, based on a trapped fluxoid in a ring, is proposed and demonstrated. It can provide arbitrary phase values and is simple to fabricate. The phase bias has been realized in two superconducting quantum interference devices, where the critical current versus magnetic flux is shown to be shifted by a π/2 and π.
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