Amplifying a zeptonewton force with a single-ion nonlinear oscillator
- URL: http://arxiv.org/abs/2305.10241v1
- Date: Wed, 17 May 2023 14:28:28 GMT
- Title: Amplifying a zeptonewton force with a single-ion nonlinear oscillator
- Authors: Bo Deng, Moritz G\"ob, Benjamin A. Stickler, Max Masuhr, Kilian
Singer, and Daqing Wang
- Abstract summary: We show that a particle confined in a funnel-shaped potential features a Duffing-type nonlinearity due to the coupling between its radial and axial motion.
Harnessing the bistability of this atomic oscillator, we demonstrate a 20-fold enhancement of the signal from a zeptonewton-magnitude force.
- Score: 0.5541644538483949
- License: http://creativecommons.org/licenses/by/4.0/
- Abstract: Nonlinear mechanical resonators display rich and complex dynamics and are
important in many areas of fundamental and applied sciences. In this letter, we
show that a particle confined in a funnel-shaped potential features a
Duffing-type nonlinearity due to the coupling between its radial and axial
motion. Employing an ion trap platform, we study the nonlinear oscillation,
bifurcation and hysteresis of a single calcium ion driven by radiation
pressure. Harnessing the bistability of this atomic oscillator, we demonstrate
a 20-fold enhancement of the signal from a zeptonewton-magnitude harmonic force
through the effect of vibrational resonance. Our findings open up a range of
possibilities for controlling and exploiting nonlinear phenomena of mechanical
oscillators close to the quantum regime.
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