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9 papers · 2 filters
Einstein-Podolsky-Rosen Energy-Time Entanglement of Narrowband Biphotons
Yefeng Mei, Yiru Zhou, Shanchao Zhang +5
We report the direct characterization of energy-time entanglement of narrowband biphotons produced from spontaneous four-wave mixing in cold atoms. The Stokes and anti-Stokes two-p…
One-step implementation of a multi-target-qubit controlled phase gate with cat-state qubits in circuit QED
You-Ji Fan, Zhen-Fei Zheng, Yu Zhang +2
We propose a single-step implementation of a muti-target-qubit controlled phase gate with one cat-state qubit (\textit{cqubit}) simultaneously controlling target \textit{cqub…
Universal quantum gate with hybrid qubits in circuit quantum electrodynamics
Chui-Ping Yang, Zhen-Fei Zheng, Yu Zhang
Hybrid qubits have recently drawn intensive attention in quantum computing. We here propose a method to implement a universal controlled-phase gate of two hybrid qubits via two thr…
Detecting non-Abelian statistics of topological states on a chain of superconducting circuits
Jun-Yi Cao, Jia Liu, L. B. Shao +1
In view of the fundamental importance and many promising potential applications, non-Abelian statistics of topologically protected states have attracted much attention recently. Ho…
Experimental Measurement of the Quantum Metric Tensor and Related Topological Phase Transition with a Superconducting Qubit
Xinsheng Tan, Dan-Wei Zhang, Zhen Yang +12
Berry curvature is an imaginary component of the quantum geometric tensor (QGT) and is well studied in many branches of modern physics; however, the quantum metric as a real compon…
Quantum Tomography of the Photon-Plasmon Conversion Process in a Metal Hole Array
Lei Tang, Kaimin Zheng, Jiale Guo +8
In the past decades, quantum plasmonics has become an active area due to its potential applications in on-chip plasmonic devices for quantum information processing. However, the fu…