Axial Casimir force

Qing Dong Jiang, Frank Wilczek

Research output: Contribution to journalArticlepeer-review

16 Scopus citations


Quantum fluctuations in vacuum can exert a dissipative force on moving objects, which is known as Casimir friction. Especially, a rotating particle in the vacuum will eventually slow down due to the dissipative Casimir friction. Here, we identify a dissipationless force by examining a rotating particle near a bi-isotropic media that generally breaks parity symmetry or/and time-reversal symmetry. The direction of the dissipationless vacuum force is always parallel with the rotating axis of the particle. We therefore call this dissipationless vacuum force the axial Casimir force.

Original languageEnglish (US)
Article number165402
JournalPhysical Review B
Issue number16
StatePublished - Apr 1 2019

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics


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