Shai Machnes Ulm University Safed 92012 Why does this work or sometimes doesnt The Model System a optical cavity modes Laser driving b mech modes Cavity is inherently dissipative ID: 756165
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Slide1
Understandable Optimal Control and Cooling Optomechanical Systems
Shai Machnes
Ulm University
Safed
, 9/2012Slide2
Why does this work?
(or sometimes doesn’t)Slide3
The Model System
“a” - optical cavity modes
Laser driving
“b” - mech. modes
Cavity is inherently dissipative
(to allow driving).
substrateSlide4
The 3 steps
Analytical sub-optimal sequence at simplifying limit(e.g. coherent & impulsive)
Generalize with mechanized algebra(teach the computer to do operator algebra and BCH)
Numeric search for optimal sequence
Use analytical result as starting point
Gradually go beyond limitations of analytics
Incoherent system
Experimental constraints (via
Jacobians
“stack”)Slide5
Thank you
Phys. Rev. Lett. 108, 153601 (
2012),Pulsed Laser Cooling for Cavity-Optomechanical Resonators, S
. Machnes
, J.
Cerrillo
, M.
Aspelmeyer
, W.
Wieczorek
, M. B.
Plenio
and A. Retzker
Phys. Rev. A 84
, 022305 (2011),Comparing, optimizing, and benchmarking quantum-control algorithms in a unifying programming
frameworkS. Machnes, U. Sander, S. J. Glaser, P. de Fouquières, A. Gruslys, S. Schirmer, and T. Schulte-Herbrüggen, Phys. Rev. Lett. 104
, 183001 (2010), Superfast Laser Cooling, S. Machnes, M. B. Plenio, B. Reznik
, A. M. Steane, and A. Retzker,