𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Tunnel spectroscopy of a double superconducting island qubit

✍ Scribed by P. Lafarge; D. Schaeffer; E. Bibow; L.P. Lévy

Book ID
104428516
Publisher
Elsevier Science
Year
2003
Tongue
English
Weight
580 KB
Volume
18
Category
Article
ISSN
1386-9477

No coin nor oath required. For personal study only.

✦ Synopsis

We have probed by tunnel spectroscopy a quantum system consisting of two superconducting islands strongly coupled by an ultrasmall Josephson junction. The Josephson junction allows Cooper pair delocalization between the two islands and gate voltages control the state of the system. Tunnel spectroscopy is made possible by means of two other junctions weakly coupling the islands to measurement leads. We have observed di erent transport regimes depending on the applied bias voltage.

📜 SIMILAR VOLUMES

Tunneling spectroscopy: A probe for high
Tunneling spectroscopy: A probe for high-Tc superconductivity
✍ H. Castro; G. Leibovitch; R. Beck; A. Kohen; Y. Dagan; G. Deutscher 📂 Article 📅 2008 🏛 Elsevier Science 🌐 English ⚖ 420 KB

After the pioneering work of Giaever [Phys. Rev. Lett. 5 (1960) 147. [1]] and Shapiro in the 1960s, tunneling spectroscopy has become an important method for studying different properties of superconductors, such as the superconducting gap and the density of states. At the interface with a supercond

Tunneling spectroscopy of persistent cur
Tunneling spectroscopy of persistent currents in superconducting microrings
✍ K.Yu. Arutyunov; T.T. Hongisto; D.Y. Vodolazov 📂 Article 📅 2007 🏛 Elsevier Science 🌐 English ⚖ 211 KB

It is shown that in a structure consisting of a superconducting ring-shaped electrode overlapped by a normal metal contact through a thin oxide barrier, measurements of the tunnel current in magnetic field can probe persistent currents in the ring. The effect manifests itself as periodic oscillation