Entangled Coherent State Qubits in an Ion Trap

Abstract

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

4 pages, No figures, accepted to PRA, minor change

References in corpus (5)

• Experimental issues in coherent quantum-state manipulation of trapped atomic ions
• Macroscopically distinct quantum superposition states as a bosonic code for amplitude damping
• Engineering two-mode interactions in ion traps
• Decoherence and fidelity in ion traps with fluctuating trap parameters
• Measurement and state preparation via ion trap quantum computing

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