6533b7d5fe1ef96bd1265043

RESEARCH PRODUCT

Electromagnetically induced tunnelling suppression in a flux qubit

Antonino MessinaRosanna Migliore

subject

Josephson effectPhysicsPhase qubitFlux qubitTunnel effectResonatorCharge qubitCondensed matter physicsQubitCondensed Matter PhysicsQuantum tunnellingElectronic Optical and Magnetic Materials

description

Motivated by recent experiments wherein Josephson devices are irradiated by microwaves fields or are coupled to LC resonators, we theoretically investigate the dynamics of a flux qubit coupled to a monochromatic bosonic mode. We define strong coupling conditions under which the qubit tunnelling frequency between the localized flux states can be controlled and even suppressed. The practical realization of such a regime leading to this hindered dynamics is discussed.

https://doi.org/10.1140/epjb/e2003-00221-5