Entangled coherent-state qubits in an ion trap - art. no. 052108

We show how entangled qubits can be encoded as entangled coherent states of two-dimensional center-of-mass vibrational motion for two ions in an ion t rap. The entangled qubit state is equivalent to the canonical Bell state, a nd we introduce a proposal for entanglement transfer from the two vibration al modes to the electronic states of the two ions in order for the Bell sta te to be detected by resonance fluorescence shelving methods.