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Detection of an electron spin in a MRFM cantilever experiment

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2 Author(s)
Ting, M. ; Dept. of Electr. Eng. & Comput. Sci., Michigan Univ., Ann Arbor, MI, USA ; Hero, A.O.

In the magnetic resonance force microscopy (MRFM) experiment that we consider, a cantilever is used to detect the presence of an electron spin. If an electron spin is present, the equation governing the motion of the cantilever is nonlinear. In the absence of a spin, the equation is linear. We propose a detector model that uses two Kalman filter (KF) state estimators. The estimator for the spin hypothesis is an adaptation of the standard KF, and can be viewed as a 0th order mixed-time extended Kalman filter (EKF). Simulation results are presented for several system parameter values.

Published in:

Statistical Signal Processing, 2003 IEEE Workshop on

Date of Conference:

28 Sept.-1 Oct. 2003

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