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Many-Body Coherent Destruction of Tunneling
Jiangbin Gong, Luis Morales-Molina, Peter Hanggi
A new route to coherent destruction of tunneling is established by considering a monochromatic fast modulation of the self-interaction strength of a many-boson system. The modulati…
Qubit-oscillator dynamics in the dispersive regime: analytical theory beyond rotating-wave approximation
David Zueco, Georg M. Reuther, Sigmund Kohler +1
We generalize the dispersive theory of the Jaynes-Cummings model beyond the frequently employed rotating-wave approximation (RWA) in the coupling between the two-level system and t…
Quantum router based on ac control of qubit chains
David Zueco, Fernando Galve, Sigmund Kohler +1
We study the routing of quantum information in qubit chains. This task is achieved by suitably chosen time-dependent local fields acting on the qubits. Employing the physics of coh…
Dephasing of qubits by the Schrödinger cat
J. Dajka, M. Mierzejewski, J. Luczka +1
We study the dephasing of a single qubit coupled to a bosonic bath. In particular, we investigate the case when the bath is initially prepared in a pure state known as the Schrödin…