Chiral Casimir forces: Repulsive, enhanced, tunable
Author(s)Jiang, Qing-Dong; Wilczek, Frank
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Both theoretical interest and practical significance attach to the sign and strength of Casimir forces. A famous, discouraging no-go theorem states that “the Casimir force between two bodies with reflection symmetry is always attractive.” Here, we identify a promising way to avoid the assumptions of the no-go theorem, and propose a universal way to realize repulsive Casimir forces. We show that the sign and strength of Casimir forces can be adjusted by inserting optically active or gyrotropic media between bodies, and modulated by external fields.
DepartmentMassachusetts Institute of Technology. Department of Physics
Physical Review B
American Physical Society
Jiang, Qing-Dong, and Frank Wilczek. “Chiral Casimir Forces: Repulsive, Enhanced, Tunable.” Physical Review B, vol. 99, no. 12, Mar. 2019.
Final published version