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Title: Observation of a single spin by transferring its coherence to a high level macroscopic pure state

We discuss about quantum measurement of a single spin in a superconducting RF resonator, where amplification of coherence of the spin is enabled by transferring its coherence to the harmonic oscillator in an non-coherent state with high energy level. This quantum amplification allows that a single spin can induce macroscopic current to permits observation of a single spin state in the number and phase uncertainty relation.
Authors:
 [1]
  1. Electrical and Electronic Engineering, Okayama University of Science, 1-1 Ridai-cho, kita-ku, Okayama, 700-0005 (Japan)
Publication Date:
OSTI Identifier:
22390721
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 1633; Journal Issue: 1; Conference: 11. International Conference on Quantum Communication, Measurement and Computation, Vienna (Austria), 30 Jul - 3 Aug 2012; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; AMPLIFICATION; ANNIHILATION OPERATORS; EIGENSTATES; ENERGY LEVELS; HARMONIC OSCILLATORS; PURE STATES; SPIN; SUPERCONDUCTING CAVITY RESONATORS