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In article number 2100500, Xinsheng Tan, Yang Yu, and co‐workers use a four‐level superconducting quantum loop to simulate a two‐qubit quantum system. By mapping the energy levels of the two‐qubit system to a non‐composite system, simulations of several quantum gate operations, including the CNOT gate and the Hadamard gate, are completed in a convenient way. Furthermore, the authors generate entangled...
Herein, a two‐qubit system is experimentally simulated through a four‐level superconducting circuit. By mapping the energy levels of the two‐qubit system to a noncomposite system, some two‐qubit gates with designed microwave pulses, such as Hadamard and CNOT gates, are implemented. Furthermore, the Shannon entropy of the simulated two‐qubit system is measured and the log 2 uncertainty relation is...
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