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Transferring quantum information between a quantum system with limited control and a quantum computer

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arxiv 2110.05683 v1 pith:TPO7GMIR submitted 2021-10-12 quant-ph

Transferring quantum information between a quantum system with limited control and a quantum computer

classification quant-ph
keywords quantumsystemcomputerhamiltonianqubitalgorithmscontrolfixed
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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We consider a hybrid quantum system consisting of a qubit system continuously evolving according to its fixed own Hamiltonian and a quantum computer. The qubit system couples to a quantum computer through a fixed interaction Hamiltonian, which can only be switched on and off. We present quantum algorithms to approximately transfer quantum information between the qubit system with limited control and the quantum computer under this setting. Our algorithms are programmed by the gate sequences in a closed formula for a given interface interaction Hamiltonian.

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