Single-Interface Casimir Torque

Abstract

It is shown that the quantum fluctuations of the electromagnetic field generally induce a torque at the interface of an anisotropic material with another anisotropic or isotropic material. It is proven that this torque depends on an interface zero-point energy determined by the dispersion of the interface (localized and extended) modes. Our theory demonstrates that the single-interface torque is essential to understand the Casimir physics of material systems with anisotropic elements and determines the equilibrium positions of the system.

References in corpus (8)

• Casimir-Lifshitz Theory and Metamaterials
• Casimir interaction of dielectric gratings
• Quantum levitation by left-handed metamaterials
• On the torque on birefringent plates induced by quantum fluctuations
• Non-contact rack and pinion powered by the lateral Casimir force
• Casimir force driven ratchets
• An alternative calculation of the Casimir forces between birefringent plates
• Rotation of a liquid crystal by the Casimir torque

Cited by in corpus (4)

• Engineering transistor-like optical gain in two-dimensional materials with Berry curvature dipoles
• Optical torque on a two-level system near a strongly nonreciprocal medium
• Lateral Optical Forces on Linearly-Polarized Emitters near a Reciprocal Substrate
• Spontaneous Rotational Symmetry Breaking in a Kramers Two-Level System