A researcher in dynamical stability who, with Mark Levi, analyzed a particle in a rotating saddle trap. Rapid rotation can stabilize motion even though the stationary saddle is unstable. Their calculation also finds a slow precession, represented in the averaged equations by a Coriolis-like force in the laboratory frame. This links dynamic stabilization to the behavior of a Foucault pendulum and distinguishes a rotating potential from a particle constrained to a rotating surface.[ref]
Rotating saddle trap as Foucault's pendulum by Oleg N. Kirillov and Mark Levi. Abstract and introduction: stabilization, laboratory-frame precession and distinction between mechanical models
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