Nonequilibrium Tuning of the Thermal Casimir Effect

David S. Dean, Bing Sui Lu, A. C. Maggs, Rudolf Podgornik

Research output: Contribution to journalArticlepeer-review

23 Citations (Scopus)


In net-neutral systems correlations between charge fluctuations generate strong attractive thermal Casimir forces and engineering these forces to optimize nanodevice performance is an important challenge. We show how the normal and lateral thermal Casimir forces between two plates containing Brownian charges can be modulated by decorrelating the system through the application of an electric field, which generates a nonequilibrium steady state with a constant current in one or both plates, reducing the ensuing fluctuation-generated normal force while at the same time generating a lateral drag force. This hypothesis is confirmed by detailed numerical simulations as well as an analytical approach based on stochastic density functional theory.

Original languageEnglish
Article number240602
JournalPhysical Review Letters
Issue number24
Publication statusPublished - 14 Jun 2016
Externally publishedYes


Dive into the research topics of 'Nonequilibrium Tuning of the Thermal Casimir Effect'. Together they form a unique fingerprint.

Cite this