Quantum Information Processing In Solid-Opto Mechanical Hybrid Quantum Interface

Quantum theory has important applications in lots of fields.Quantum computation is a interdisciplinary discipline in information field applied by quantum theory,it involves physics,computer science and information science.The physical implementation is as follow,the information is encoded in the qubits,and make the qubits evolve in a specific way by using the controllable operation,then finish the information transfer,storage and processing,to complete the information processing,the information is read by using measuring operation,the evolutionary operations is called quantum gates which are unitary evolutions.However,the procedure will influence by decoherence,it requires that the process needs to finish enough quantum gate operations during the decoherence time,and to avoid the unitary evolution decoherence into the non unitary evolution under the influence of external environment,the system should isolate from the external environment.Predecessors have done enough research in quantum computation,and structured qubits and quantum gates by semiconductor,quantum dot,superconductor and ion trap,et al.Furthermore,when the native quantum computation has been finished,the information will be transferred from the native quantum node to the remote quantum node.Our research based on quantum state transfer,and the model constitutes superconducting qubits,superconducting resonator,nano mechanical resonator and optical cavity.The model combines the advantages of solid system with advantages of optical system.The hybrid quantum interface is constituted by solid system and optical system,and the nano mechanical resonator is the medium which coupled these two parts.In this article we investigate the energy and occupation transfer efficiency under the different pulses.Our method integrated the quantum computation-quantum communication-quantum computation during the whole process and realized to convert the microwave to optical photon.