Project supported by the Natural Science Foundation of Shandong Province,China (Grant No.ZR2021MF049);Joint Fund of Natural Science Foundation of Shandong Province (Grant Nos.ZR2022LLZ012 and ZR2021LLZ001)。
Readout errors caused by measurement noise are a significant source of errors in quantum circuits,which severely affect the output results and are an urgent problem to be solved in noisy-intermediate scale quantum(NIS...
We present an efficient scheme for the complete analysis of hyperentangled Greenberger–Horne–Zeilinger(GHZ)state in polarization and time-bin degrees of freedom with two steps. Firstly, the polarization GHZ state is...
Project supported by the National Key Research and Development Program of China(Grant No.2016YFE0200700);the National Natural Science Foundation of China(Grant Nos.61627820 and 61934003)
We investigate the robustness of entanglement for a multiqubit system under dephasing and bit flip channels. We exhibit the difference between the entanglement evolution of the two forms of special states, which are l...
Based on the previous work about the knotted pictures of quantum states, quantum logic gates and unitary transformations, this paper further gives the whole complete quantum measurement process of quantum teleportatio...
Project supported by National Natural Science Foundation of China (Grant Nos 10474118, 60490280 and 10774161);partly by the National Fundamental Research Program of China (Grants Nos 2005CB724502 and 2006CB921203)
We explore the possibility of an N-qubit (N 〉 3) Grover search in cavity QED, based on a fast operation of an N-qubit controlled phase-flip with atoms in resonance with the cavity mode. We demonstrate both analytic...