Work

Coherent superconducting quantum pump

Year: 2012

Type: article

Abstract: We demonstrate nonadiabatic charge pumping utilizing a sequence of coherent oscillations between a superconducting island and two reservoirs. The pumping rate for each elementary cycle is limited by the coupling between the island and the reservoirs given by the Josephson energy. Our experimental and theoretical studies show that relaxation can be employed to reset the pump in order to avoid accumulation of errors due to nonideal control pulses. Thus our results demonstrate the effects of nonadiabatic quantum pumping and dissipation.

Source: Physical Review B

DOI: 10.1103/physrevb.85.140504

Authors: Felix Hoehne, Yuri A. Pashkin, Oleg V. Astafiev, Mikko Möttönen, Jukka P. Pekola, JawShen Tsai

Institutions: RIKEN Advanced Science Institute, Technical University of Munich, NEC (Japan), Lancaster University, Aalto University

Language: English

Topic: Quantum Information and Cryptography

Subfield: Artificial Intelligence

Field: Computer Science

Domain: Physical Sciences

Open Access status: green

Funder: Japan Society for the Promotion of Science

OpenAlex ID: W1996170832

FWCI: 1.262

Cites: 33

Cited by: 5

Related to: 10