Orientation-dependent Casimir force arising from highly anisotropic crystals: Application toBi2Sr2CaCu2O8+δ

2008/09/18 by Mark B. Romanowsky, Federico Capasso · 1 citation
Physics and Astronomy · #Mechanical and Optical Resonators #Noncommutative and Quantum Gravity Theories #Quantum Electrodynamics and Casimir Effect #cond-mat.other

paper · pdf · doi:10.1103/physreva.78.042110

5 pages, 3 figures. Accepted for publication in Physical Review A

arxiv created 2008/09/18 · openalex publication_date 2008/10/17 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/29

Abstract

We calculate the Casimir interaction between parallel planar crystals of Au and the anisotropic cuprate superconductor Bi₂Sr₂CaCu₂O_8+\ensuremathδ (BSCCO), with BSCCO's optical axis either parallel or perpendicular to the crystal surface, using suitable generalizations of the Lifshitz theory. We find that the strong anisotropy of the BSCCO permittivity gives rise to a difference in the Casimir force between the two orientations of the optical axis, which depends on distance and is of order 10--20 % at the experimentally accessible separations 10\phantom\rule0.3em0exto\phantom\rule0.3em0ex5000\phantom\rule0.3em0exnm.

Citations

• Casimir force and the quantum theory of lossy optical cavities
• Metamaterials and Negative Refractive Index
• Sample dependence of the Casimir force

Cited by

• The Casimir effect in microstructured geometries