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Nonlinear nanomechanical resonators approaching the quantum ground state

Autor: Samanta, C., De Bonis, S. L., Møller, C. B., Tormo-Queralt, R., Yang, W., Urgell, C., Stamenic, B., Thibeault, B., Jin, Y., Czaplewski, D. A., Pistolesi, F., Bachtold, A.

Publikováno v: Nature Physics, 2023

An open question in mechanics is whether mechanical resonators can be made nonlinear with vibrations approaching the quantum ground state. This requires engineering a mechanical nonlinearity far beyond what has been realized thus far. Here we discove

Externí odkaz: http://arxiv.org/abs/2211.07632

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Nanomechanical vibrational response from electrical mixing measurements

Autor: Samanta, C., Czaplewski, D. A., De Bonis, S. L., Moller, C. B., Queralt, R. Tormo, Miller, C. S., Jin, Y., Pistolesi, F., Bachtold, A.

Publikováno v: Appl. Phys. Lett. 123, 203502 (2023)

Driven nanomechanical resonators based on low-dimensional materials are routinely and efficiently detected with electrical mixing measurements. However, the measured signal is a non-trivial combination of the mechanical eigenmode displacement and an

Externí odkaz: http://arxiv.org/abs/2207.02291

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Interrelation of elasticity and thermal bath in nanotube cantilevers

Autor: Tepsic, S., Gruber, G., Moller, C. B., Magen, C., Belardinelli, P., Hernadez, E. R., Alijani, F., Verlot, P., Bachtold, A.

Publikováno v: Phys. Rev. Lett. 126, 175502 (2021)

We report the first study on the thermal behaviour of the stiffness of individual carbon nanotubes, which is achieved by measuring the resonance frequency of their fundamental mechanical bending modes. We observe a reduction of the Young's modulus ov

Externí odkaz: http://arxiv.org/abs/2101.09065

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