Probing the quantum vacuum with an artificial atom in front of a mirror

  1. I.-C. Hoi,
  2. A. F. Kockum,
  3. L. Tornberg,
  4. A. Pourkabirian,
  5. G. Johansson,
  6. P. Delsing,
  7. and C. M. Wilson
Quantum fluctuations of the vacuum are both a surprising and fundamental phenomenon of nature. Understood as virtual photons flitting in and out of existence, they still have a very