Zero-Temperature Casimir Fluctuations and the Limits of Force Microscope Sensitivity
| dc.creator | Sidles, John A. | |
| dc.date | 1997-10-03 | |
| dc.date | 1997-10-18 | |
| dc.date.accessioned | 2026-07-07T06:14:26Z | |
| dc.date.available | 2026-07-07T06:14:26Z | |
| dc.description | It is predicted that in force microscopy the quantum fluctuations responsible for the Casimir force can be directly observed as temperature-independent force fluctuations having spectral density $9π/(40\ln(4/e)) \hbar δk$, where $\hbar$ is Planck's constant and $δk$ is the observed change in spring constant as the microscope tip approaches a sample. For typical operating parameters the predicted force noise is of order $10^{-18}$ Newton in one Hertz of bandwidth. The Second Law is respected via the fluctuation-dissipation theorem. For small tip-sample separations the cantilever damping is predicted to increase as temperature is reduced, a behavior that is reminiscent of the Kondo effect. | |
| dc.description | Revised as submitted to PRL: (a) the predicted fluctuations are 8% larger, due to the correction of a minor algebraic error, (b) additional physical motivation is provided at each step of the calculation, (c) the figure is nicer. RevTeX, four pages, one embedded figure, uses epsf.sty | |
| dc.identifier | https://arxiv.org/abs/quant-ph/9710017 | |
| dc.identifier | http://arxiv.org/abs/quant-ph/9710017 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/93463 | |
| dc.subject | Quantum Physics | |
| dc.subject | Mesoscale and Nanoscale Physics | |
| dc.subject | Instrumentation and Detectors | |
| dc.title | Zero-Temperature Casimir Fluctuations and the Limits of Force Microscope Sensitivity | |
| dc.type | text |