Nanoampere pumping of Cooper pairs

Abstract

We have employed a tunable Cooper-pair transistor, the sluice, with radio frequency control to pump current over a resistive circuit. We find that the charge transferred per pumping cycle can be controlled with the resolution of a single Cooper-pair up to hundreds of pairs. The achieved nanoampere current features more than an order of magnitude improvement over the previously reported results and it is close to the theoretical maximum value for the measured sample.

References in corpus (2)

• Measurement scheme of the Berry phase in superconducting circuits
• Time-domain measurements of quasiparticle tunneling rates in a single-Cooper-pair transistor

Cited by in corpus (17)

• Experimental determination of the Berry phase in a superconducting charge pump
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• Cooper-pair transistor as a minimal topological quantum circuit
• Current to frequency conversion in a Josephson circuit
• Single Cooper-pair pumping in the adiabatic limit and beyond
• Ground-state geometric quantum computing in superconducting systems
• Suppression of the critical current of a balanced SQUID
• Memory effects in adiabatic quantum pumping with parasitic nonlinear dynamics
• Coherent Cooper-pair pumping by magnetic flux control
• Single-Hole Pump in Germanium
• Parasitic pumping currents in an interacting quantum dot
• Thouless pumping in Josephson junction arrays
• Temperature-biased double-loop Josephson flux transducer
• Quantum effect of inductance on geometric Cooper-pair transport
• Flux pumping of Cooper pairs through a Josephson Energy-Suppression Pump
• Open quantum dynamics of Josephson charge pumps