摘要
A quantum network is a promising quantum many-body system because of its tailored geometry and controllable interaction. Here,we propose an external control scheme for the qubit-photon interaction and multiqubit reset in a dissipative quantum network,which comprises superconducting circuit chains with microwave drives and filter-filter couplings. The traditional multiqubit reset of the quantum network requires physically disconnected qubits to prevent their entanglement. However, we use an original effect of dissipation, i.e., consuming the entanglement generated by qubits’ interaction, to achieve an external control of the multiqubit reset in an always-connected superconducting circuit. The reset time is independent of the number of qubits in the quantum network. Our proposal can tolerate considerable fluctuations in the system parameters and can be applicable to higherdimensional quantum networks.
基金
supported by the National Natural Science Foundation of China(Grant Nos.11875108,11774058,11405031,and 11347114)
supported by the National Natural Science Foundation of China(Grant No.61771278)
the National Natural Science Foundation of China(Grant No.11925404)
the Natural Science Foundation of Fujian Province(Grant Nos.2018J01412
2014J05005)
the Beijing Institute of Technology Research Fund Program for Young Scholars
supported by the National Key Research and Development Program of China(Grant No.2017YFA0304303)。