Boosting the Quantum State of a Cavity with Floquet Driving

  • Starts: 3:30 pm on Wednesday, October 13, 2021
  • Ends: 4:30 pm on Wednesday, October 13, 2021
The striking nonlinear effects exhibited by cavity QED systems make them a powerful tool in modern condensed matter and atomic physics. A recently discovered example is the quantized pumping of energy into a cavity by a strongly coupled, periodically (Floquet) driven spin. We uncover a remarkable feature of these energy pumps: they coherently translate, or boost, a quantum state of the cavity in the Fock basis. Furthermore, we argue that the required ultra-strong coupling may be achieved in a rotating frame. Boosting thus enables the preparation of highly excited nonclassical cavity states in near term optical cavity and circuit QED experiments. One need only boost low occupation states.
SCI 328
Anatoli Pokovnikov
David Long