publication . Other literature type . Preprint . Article . Part of book or chapter of book . 2014

Real-time calibration of a feedback trap

Momčilo Gavrilov; Yonggun Jun; John Bechhoefer;
  • Published: 06 Jun 2014
  • Publisher: AIP Publishing
Abstract
Feedback traps use closed-loop control to trap or manipulate small particles and molecules in solution. They have been applied to the measurement of physical and chemical properties of particles and to explore fundamental questions in the non-equilibrium statistical mechanics of small systems. These applications have been hampered by drifts in the electric forces used to manipulate the particles. Although the drifts are small for measurements on the order of seconds, they dominate on time scales of minutes or slower. Here, we show that an extended recursive least-squares (RLS) parameter-estimation algorithm can allow real-time measurement and control of electric...
Subjects
free text keywords: Physics - Instrumentation and Detectors, Recursive maximum likelihood, Quantum mechanics, Optics, business.industry, business, Physics, Calibration, Maximum likelihood, Small systems, Statistical mechanics, Small particles, Statistical physics, Stochastic process
Related Organizations
Funded by
NSERC
Project
  • Funder: Natural Sciences and Engineering Research Council of Canada (NSERC)
20 references, page 1 of 2

9Q. Wang, R. H. Goldsmith, Y. Jiang, S. D. Bockenhauer, and W. Moerner, Acc. Chem. Res. 45, 1955 (2012).

10Q. Wang and W. E. Moerner, J. Phys. Chem. B 117, 4641 (2013).

11G. S. Schlau-Cohen, Q. Wang, J. Southall, R. J. Cogdell, and W. E. Moerner, PNAS 110, 10899 (2013).

12A. E. Cohen, Phys. Rev. Lett. 94 (2005).

13A. Cho, Science 332, 171 (2011).

14R. Landauer, IBM J. Res. Develop. 5, 183 (1961).

15A. Berut, A. Arakelyan, A. Petrosyan, S. Ciliberto, R. Dillenschneider, and E. Lutz, Nature 483, 187 (2012).

16Y. Jun, M. Gavrilov, and J. Bechhoefer, in preparation.

17M. Gavrilov, Y. Jun, and J. Bechhoefer, Proceedings of SPIE - Optical Trapping and Optical Micromanipulation X (2013).

18Y. Jun and J. Bechhoefer, Phys. Rev. E 86 (2012).

19M. Goulian and S. M. Simon, Biophys. J. 79, 2188 (2000).

20T. Savin and P. S. Doyle, Biophys. J. 88, 623 (2005).

21A. E. Cohen, Trapping and Manipulating Single Molecules in Solution, Ph.D. thesis, Stanford University (2006).

22K. J. Astrom and B. Wittenmark, Adaptive Control, 2nd ed. (Dover, 2008).

23C. L. Vestergaard, P. C. Blainey, and H. Flyvbjerg, Phys. Rev. E 89 (2014).

20 references, page 1 of 2
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