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Zeno physics in ultrastrong-coupling circuit QED

Mon, 2011-02-14 20:15 - Daniel Rudolph
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Date: 
2010-06-30
Author(s): 

I. Lizuain, J. Casanova, J. J. García-Ripoll, J. G. Muga, and E. Solano

Reference: 

Phys. Rev. A 81, 062131 (2010)

URL: 

http://link.aps.org/doi/10.1103/PhysRevA.81.062131

We study the Zeno and anti-Zeno effects in a superconducting qubit interacting strongly and ultrastrongly with a microwave resonator. Using a model of a frequently measured two-level system interacting with a quantized mode, we predict different behaviors and total control of the Zeno times depending on whether the rotating-wave approximation can be applied in the Jaynes-Cummings model. As an example, we show the dependence of our results with the properties of the initial field states.