dorsal/arxiv
View SchemaZero-Temperature Casimir Fluctuations and the Limits of Force Microscope Sensitivity
| Authors | John A. Sidles |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/9710017 |
| URL | https://arxiv.org/abs/quant-ph/9710017 |
Abstract
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 $9\pi/(40\ln(4/e)) \hbar \delta k$, where $\hbar$ is Planck's constant and $\delta k$ 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.
{
"annotation_id": "24cd905d-d197-4b96-9c1b-258d99498a93",
"date_created": "2026-03-02T18:02:41.492000Z",
"date_modified": "2026-03-02T18:02:41.492000Z",
"file_hash": "b1dfc6148ee56bb4a01800804c7fe612deec177c7793815573dbe2c72b024d2a",
"private": false,
"record": {
"abstract": "It is predicted that in force microscopy the quantum fluctuations responsible\nfor the Casimir force can be directly observed as temperature-independent force\nfluctuations having spectral density $9\\pi/(40\\ln(4/e)) \\hbar \\delta k$, where\n$\\hbar$ is Planck\u0027s constant and $\\delta k$ is the observed change in spring\nconstant as the microscope tip approaches a sample. For typical operating\nparameters the predicted force noise is of order $10^{-18}$ Newton in one Hertz\nof bandwidth. The Second Law is respected via the fluctuation-dissipation\ntheorem. For small tip-sample separations the cantilever damping is predicted\nto increase as temperature is reduced, a behavior that is reminiscent of the\nKondo effect.",
"arxiv_id": "quant-ph/9710017",
"authors": [
"John A. Sidles"
],
"categories": [
"quant-ph",
"cond-mat.mes-hall",
"physics.ins-det"
],
"title": "Zero-Temperature Casimir Fluctuations and the Limits of Force Microscope Sensitivity",
"url": "https://arxiv.org/abs/quant-ph/9710017"
},
"schema_id": "dorsal/arxiv",
"source": {
"execution_id": "a0b11414-acfd-4991-9768-b24cc3f8bebe",
"id": "arXiv Dataset IDs",
"type": "Model",
"variant": "snapshot-2026-03-01",
"version": "0.1.0"
},
"user_id": 1000002
}