Controlling Statistical Properties of a Cooper Pair Box Interacting with a Nanomechanical Resonator
arXiv:1104.2106 · doi:10.1016/j.physa.2011.06.007
Abstract
We investigate the quantum entropy, its power spectrum, and the excitation inversion of a Cooper pair box interacting with a nanomechanical resonator, the first initially prepared in its excited state, the second prepared in a "cat"-state. The method uses the Jaynes-Cummings model with damping, with different decay rates of the Cooper pair box and distinct detuning conditions, including time dependent detunings. Concerning the entropy, it is found that the time dependent detuning turns the entanglement more stable in comparison with previous results in literature. With respect to the Cooper pair box excitation inversion, while the presence of detuning destroys the its collapses and revivals, it is shown that with a convenient time dependent detuning one recovers such events in a nice way.
10 pages, 10 figures
References in corpus (7)
- Experimental quantum teleportation
- Optical realization of relativistic non-Hermitian quantum mechanics
- Squeezing of a nanomechanical resonator by quantum nondemolition measurement and feedback
- Entanglement between two atoms in a damping Jaynes-Cummings model
- Non-Hermitian quantum mechanics in non-commutative space
- Entanglement evolution of a two-qubit system with decay beyond rotating-wave approximation
- Dynamical Criterion for Quantum Chaos: Entropy Production in Subsystems
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- On the paradoxical evolution of the number of photons in a new model of interpolating Hamiltonians
- Controlling Excitations Inversion of a Cooper Pair Box Interacting with a Nanomechanical Resonator
- Some Aspects of Quantum Optics Using Light Fields in Traveling Waves