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Landau-Zener-Stückelberg interferometry in the presence of quantum noise

Source: Phys. Rev. B 82, 045128 (2010); doi:10.1103/PhysRevB.82.045128

Published 30 July 2010

PACS
  • 03.65.Yz
    Decoherence; open systems; quantum statistical methods
  • 03.67.Lx
    Quantum computation architectures and implementations
  • 74.50.+r
    Superconductor tunneling phenomena; point contacts, weak links, Josephson effects
  • 85.25.Cp
    Josephson devices
  • YEAR: 2010
PUBLICATION DATA
Publisher:
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Lingjie Du, Minjie Wang, and Yang Yu
National Laboratory of Solid State Microstructures and Department of Physics, Nanjing University, Nanjing 210093, China
We proposed an unconventional Landau-Zener-Stückelberg interferometry in strongly driven two-level systems subjected to quantum noise. A general transition rate for consecutive Landau-Zener transitions was obtained, from which we could analytically calculate interference fringes. The strong low-frequency noise would detour the evolution paths, leading to asymmetric transition rates which caused unpredicted position shift of the fringes and population inversions in a two-level system. ©2010 The American Physical Society
History: Received 14 May 2010; published 30 July 2010
Permalink: http://link.aps.org/abstract/PRB/v82/e045128
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