Two-Qubits Entanglement Induced by a Faster Data Bus

Details Two-Qubits Entanglement Induced by a Faster Data Bus Two-Qubits Entanglement Induced by a Faster Data Bus

2004-01-11

arxiv.org/abs/quant-ph/0401058v1

Physics

Quantum Physics

10 pages, 4 figures

Scientific paper

We propose a theoretical protocol to create the entanglement of two qubits via the Born-Oppenheimer (BO) approximation. In our scheme, each qubit is coupled to a faster data bus whose frequency is much larger than the energy spacing of the qubits and thus the BO approximation is valid. Then the adiabatic separation of qubits from the data bus can induce an effective potential to couple the two qubits, which can be utilized to create a quantum logic gate. We also discuss the quantum decoherence caused by the adiabatic entanglement between the two qubits and the external field.

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