19 citations · 19 across the 2 of their papers we have counts for
5 papers
Geometric two-qubit gates in silicon-based double quantum dots
Yong-Yang Lu, Kejin Wei, Chengxian Zhang
Achieving high-fidelity two-qubit gates is crucial for spin qubits in silicon double quantum dots. However, the two-qubit gates in experiments are easily suffered from charge noise…
Universal singlet-triplet qubits implemented near the transverse sweet spot
Wen-Xin Xie, Chengxian Zhang, Zheng-Yuan Xue
The key to realizing fault-tolerant quantum computation for singlet-triplet (ST) qubits in semiconductor double quantum dot (DQD) is to operate both the single- and two-qubit gates…
High-fidelity geometric gate for silicon-based spin qubits
Chengxian Zhang, Tao Chen, Sai Li +2
High-fidelity manipulation is the key for the physical realization of fault-tolerant quantum computation. Here, we present a protocol to realize universal nonadiabatic geometric ga…
Spin-qubit noise spectroscopy from randomized benchmarking by supervised learning
Chengxian Zhang, Xin Wang
We demonstrate a method to obtain the spectra of noises in spin-qubit devices from randomized benchmarking, assisted by supervised learning. The noise exponent, which indicat…
Fast pulse sequences for dynamically corrected gates in single-triplet qubits
Robert E. Throckmorton, Chengxian Zhang, Xu-Chen Yang +3
We present a set of experimentally feasible pulse sequences that implement any single-qubit gate on a singlet-triplet spin qubit and demonstrate that these new sequences are up to…