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Title: Enhanced charge detection: Amplification factor, phase reversal and measurement time dependence

Studenikin et al. recently demonstrated a significant enhancement of the fringe contrast of coherent Landau-Zener-Stückelberg (LZS) oscillations between singlet S and triplet T+ two-spin states using a modified charge detection technique called enhanced charge detection (ECD). In this paper we explain the amplitude phase reversal and confirm the magnitude of the effect is consistent with our calibrations. We also show that the enhancement cannot be explained by a T{sub 1} effect.
Authors:
;  [1] ; ;  [2] ; ; ; ;  [3]
  1. National Research Council Canada, Ottawa, ON Canada K1A 0R6 and Department of Physics, McGill University, 3600 rue University, Montreal, QC (Canada)
  2. National Research Council Canada, Ottawa, ON Canada K1A 0R6 and Department of Physics and Astronomy, University of Waterloo, 200 University Avenue West, Waterloo, ON (Canada)
  3. National Research Council Canada, Ottawa, ON (Canada)
Publication Date:
OSTI Identifier:
22261935
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 1566; Journal Issue: 1; Conference: ICPS 2012: 31. international conference on the physics of semiconductors, Zurich (Switzerland), 29 Jul - 3 Aug 2012; Other Information: (c) 2013 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; AMPLITUDES; DETECTION; OSCILLATIONS; SPIN; TIME DEPENDENCE