Achieving a strongly temperature-dependent Casimir effect.

We propose a method of achieving large temperature T sensitivity in the Casimir force that involves measuring the stable separation between dielectric objects immersed in a fluid. We study the Casimir force between slabs and spheres using realistic material models, and find large >2  nm/K variations in their stable separations (hundreds of nanometers) near room temperature. In addition, we analyze the effects of Brownian motion on suspended objects, and show that the average separation is also sensitive to changes in T. Finally, this approach also leads to rich qualitative phenomena, such as irreversible transitions, from suspension to stiction, as T is varied.

• Publication year

  2010

• Venue

  Physical Review Letters

• Publication date

  2010-04-15

• Fields of study

  Medicine, Physics

• Identifiers
  DOI 10.1103/PhysRevLett.105.060401arXiv 1004.2733PMID 20867961
• External record

  Open on Semantic Scholar

• Source metadata

  Semantic Scholar, PubMed

• No claims are published for this paper.

• No concepts are published for this paper.

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