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arXiv · 1601.05077

Fock-state stabilization and emission in superconducting circuits using dc-biased Josephson junctions

J. -R. Souquet·A. A. Clerk
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Abstract

We present and analyze a reservoir-engineering approach to stabilizing Fock states in a superconducting microwave cavity which does not require any microwave-frequency control drives. Instead, our system makes use of a Josephson junction biased by a dc voltage which is coupled both to a principle storage cavity and a second auxiliary cavity. Our analysis shows that Fock states can be stabilized with an extremely high fidelity. We also show how the same system can be used to prepare on-demand propagating Fock states, again without the use of microwave pulses.

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J. -R. Souquet, A. A. Clerk. 2016-01-19. Fock-state stabilization and emission in superconducting circuits using dc-biased Josephson junctions. https://doi.org/10.1103/physreva.93.060301

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