Tunability of a 2e periodic single Cooper pair box
Artikel i vetenskaplig tidskrift, 2004

We have measured the fully 2e periodic Coulomb staircase of a single Cooper pair box (SCB) in superconducting quantum interference design geometry, using a radio-frequency single-electron transistor. We have determined the energies of the SCB with microwave spectroscopy and compared the calculated shape of the Coulomb staircases to the measured staircases. We find excellent agreement as the Josephson coupling energy is tuned by an external magnetic field.

difference

josephson-junction

electron transistor

charge

Macroscopic quantum states

superconductor

Författare

David Gunnarsson

Chalmers, Mikroteknologi och nanovetenskap (MC2), Kvantkomponentfysik

Tim Duty

Chalmers, Mikroteknologi och nanovetenskap (MC2), Kvantkomponentfysik

Kevin Bladh

Chalmers, Mikroteknologi och nanovetenskap (MC2), Kvantkomponentfysik

Per Delsing

Chalmers, Mikroteknologi och nanovetenskap (MC2), Kvantkomponentfysik

Physical Review B

Vol. 70 22 224523-

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2017-10-07