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Quantum Physics

arXiv:0806.3614 (quant-ph)
[Submitted on 23 Jun 2008]

Title:Quantum efficiency of binary-outcome detectors of solid-state qubits

Authors:Alexander N. Korotkov
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Abstract: We discuss definitions of the quantum efficiency for binary-outcome qubit detectors with imperfect fidelity, focusing on the subclass of quantum non-demolition detectors. Quantum efficiency is analyzed for several models of detectors, including indirect projective measurement, linear detector in binary-outcome regime, detector of the superconducting phase qubit, and detector based on tunneling into continuum.
Comments: 11 pages
Subjects: Quantum Physics (quant-ph); Other Condensed Matter (cond-mat.other)
Cite as: arXiv:0806.3614 [quant-ph]
  (or arXiv:0806.3614v1 [quant-ph] for this version)
  https://doi.org/10.48550/arXiv.0806.3614
Journal reference: Phys. Rev. B 78, 174512 (2008)
Related DOI: https://doi.org/10.1103/PhysRevB.78.174512

Submission history

From: Alexander Korotkov [view email]
[v1] Mon, 23 Jun 2008 06:01:58 UTC (134 KB)
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