Nonlinear atomic force microscopy: Squeezing and skewness of micromechanical oscillators interacting with a surface

Autor:	Karl-Peter Marzlin, Bryan Canam, Nisha Rani Agarwal
Rok vydání:	2022
Předmět:	Condensed Matter - Mesoscale and Nanoscale Physics Mesoscale and Nanoscale Physics (cond-mat.mes-hall) FOS: Physical sciences
Zdroj:	Physical Review A. 105
ISSN:	2469-9934 2469-9926
DOI:	10.1103/physreva.105.012211
Popis:	We propose a two-frequency driving scheme in dynamic atomic force microscopy that maximizes the interaction time between tip and sample. Using a stochastic description of the cantilever dynamics, we predict large classical squeezing and a small amount of skewness of the tip's phase-space probability distribution. Strong position squeezing will require close contact between tip and surface, while momentum squeezing would also be possible in the van der Waals region of the tip-surface force. Employing a generalized Caldeira-Leggett model, we predict that surface-dependent dissipative forces may be the dominant source of quantum effects and propose a procedure to isolate quantum effects from thermal fluctuations. 21 pages, 6 figures
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d05fd88c0396799675da54638759ff85 https://doi.org/10.1103/physreva.105.012211 Zobrazit plný text záznamu