title: Entanglement spectroscopy of a driven solid-state qubit and its detector.
abstract: We study the asymptotic dynamics of a driven quantum two-level system coupled via a quantum detector to the environment. We find multiphoton resonances which are due to the entanglement of the qubit and the detector. Different regimes are studied by employing a perturbative Floquet-Born-Markov approach for the qubit+detector system, as well as nonperturbative real-time path integral schemes for the driven spin-boson system. We find analytical results for the resonances, including the red and the blue sidebands. They agree well with those of exact ab initio calculations.
authors.affiliation: Instituut-Lorentz, Universiteit Leiden, P.O. Box 9506, 2300 RA Leiden, The Netherlands.
authors.forename: M C
authors.initials: MC
authors.lastname: Goorden
authors.forename: M
authors.initials: M
authors.lastname: Thorwart
authors.forename: M
authors.initials: M
authors.lastname: Grifoni