Maximum entangled states and quantum teleportation via single Cooper pair box

We study a single Cooper pair box interacting with a single cavity mode and discuss the roles played by the detuning parameters and charged capacities on the degree of entanglement. For large values of the detuning parameter the survival of the entanglement is increased. We generate a maximum entangled state and use it to perform the original teleportation protocol. The fidelity of the teleportated state is increased due to decrease in the detuning parameter and the number of photon inside the cavity.