Josephson Qubits as Probes of 1/f Noise

  • Alexander ShnirmanEmail author
  • Gerd Schön
  • Ivar Martin
  • Yuriy Makhlin
Part of the Lecture Notes in Physics book series (LNP, volume 820)


Quantum mechanical manipulations (“quantum state engineering”) of solid-state systems is one of the most rapidly developing areas of research. Substantial progress has been achieved with superconducting circuits based on Josephson junctions. Solid-state building blocks of quantum computers have the advantages that they can be switched quickly, and they can be integrated into electronic control and measuring circuits. Strong coupling to the external circuits and other parts of the environment brings with it the problem of noise and, thus, decoherence. Therefore, the study of sources of decoherence is necessary. On the other hand, the Josephson qubits have found their first application as sensitive spectrometers of the surrounding noise.


Josephson Junction Noise Power Spectrum Decoherence Time Charge Qubit Tunnel Splitting 
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Copyright information

© Springer-Verlag Berlin Heidelberg 2010

Authors and Affiliations

  • Alexander Shnirman
    • 1
    Email author
  • Gerd Schön
    • 1
  • Ivar Martin
    • 2
  • Yuriy Makhlin
    • 3
  1. 1.Institut für Theoretische FestkörperphysikKarlsruhe Institute of Technology (KIT)KarlsruheGermany
  2. 2.Theoretical DivisionLos Alamos National LaboratoryLos AlamosUSA
  3. 3.Landau Institute for Theoretical PhysicsMoscowRussia

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