TBNQuantum
Quantum Fluctuations and Wigner Dynamics of a Carbon Nanotube Oscillator Driven by an Atomic Force Microscope
Publication: quant-ph updates on arXiv.org
Author: Conrad Silio, Cristian Staii
Source published: 21/10/2026, 04:00:00 UTC
Briefing created: 21/10/2026, 04:34:51 UTC
Based on a feed excerpt; full article content has not been acquired. Source evidence retrieved 21/10/2026, 04:13:25 UTC.
Briefings
A new study models carbon nanotube oscillators driven by atomic force microscopy as quantum Brownian oscillators. The research derives an analytical framework for finite-memory dynamics using a Drude memory kernel, expressing retarded response via a cubic characteristic equation. It calculates finite-time covariance matrices in the classical-noise limit and extends results to the full quantum fluctuation spectrum, including zero-point and low-temperature effects. The study analyzes interference attenuation and nonclassicality via the integrated negative part of the Wigner function for initial two-packet superpositions.
Key points
- The study models carbon nanotube oscillators driven by atomic force microscopy as quantum Brownian oscillators subject to a prescribed classical force.
- For a Drude memory kernel, the retarded response is expressed through the three roots of a characteristic cubic equation.
Context
Suspended carbon nanotubes serve as a platform for studying controlled nanomechanical motion where environmental fluctuations, memory effects, and quantum coherence influence dynamics. This work provides an explicit analytical framework for finite-memory quantum Brownian motion of bound oscillators.
Limitations
Results are limited to the classical-noise limit for covariance matrix entries and the full quantum fluctuation spectrum for thermal frequency series. The analysis assumes a Drude memory kernel and does not account for specific experimental parameters beyond the general model.
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