137 citations · 260 across the 13 of their papers we have counts for
14 papers
High-fidelity geometric quantum gates exceeding 99.9% in germanium quantum dots
Yu-Chen Zhou, Rong-Long Ma, Zhenzhen Kong +11
Achieving high-fidelity and robust qubit manipulations is a crucial requirement for realizing faulttolerant quantum computation. Here, we demonstrate a single-hole spin qubit in a…
In-plane optimal qubit operation with control fidelities exceeding 99 %
Yu-Chen Zhou, Zhenzhen Kong, Rong-Long Ma +9
Hole spin qubits based on semiconductor quantum dots are promising for building future large-scale quantum computers owing to their all-electrical manipulation. However, abundant p…
A diverse set of two-qubit gates for spin qubits in semiconductor quantum dots
Ming Ni, Rong-Long Ma, Zhen-Zhen Kong +11
To realize large-scale quantum information processes, an ideal scheme for two-qubit operations should enable diverse operations with given hardware and physical interaction. Howeve…
A SWAP Gate for Spin Qubits in Silicon
Ming Ni, Rong-Long Ma, Zhen-Zhen Kong +13
With one- and two-qubit gate fidelities approaching the fault-tolerance threshold for spin qubits in silicon, how to scale up the architecture and make large arrays of spin qubits…
Single spin qubit geometric gate in a silicon quantum dot
Rong-Long Ma, Ao-Ran Li, Chu Wang +11
Preserving qubit coherence and maintaining high-fidelity qubit control under complex noise environment is an enduring challenge for scalable quantum computing. Here we demonstrate…
Singlet-triplet-state readout in silicon-metal-oxide-semiconductor double quantum dots
Rong-Long Ma, Sheng-Kai Zhu, Zhen-Zhen Kong +9
High-fidelity singlet-triplet state readout is essential for large-scale quantum computing. However, the widely used threshold method of comparing a mean value with the fixed thres…
Correcting on-chip distortion of control pulses with silicon spin qubits
Ming Ni, Rong-Long Ma, Zhen-Zhen Kong +10
Pulse distortion, as one of the coherent error sources, hinders the characterization and control of qubits. In the semiconductor quantum dot system, the distortions on measurement…
Photochemical origin of SiC in the circumstellar envelope of carbon-rich AGB stars revealed by ALMA
Yanan Feng, Xiaohu Li, Tom J. Millar +16
Whether SiC is a parent species, that is formed in the photosphere or as a by-product of high-temperature dust formation, or a daughter species, formed in a chemistry driven by…
Quantum Interference and Coherent Population Trapping in a Double Quantum Dot
Yuan Zhou, Ke Wang, He Liu +5
Quantum interference is a natural consequence of wave-particle duality in quantum mechanics, and is widely observed at the atomic scale. One interesting manifestation of quantum in…
Flopping-mode spin qubit in a Si-MOS quantum dot
Rui-Zi Hu, Rong-Long Ma, Ming Ni +8
Spin qubits based on silicon metal-oxide semiconductor (Si-MOS) quantum dots (QDs) are promising platforms for large-scale quantum computers. To control spin qubits in QDs, electri…
Threshold-independent method for single-shot readout of spin qubits in semiconductor quantum dots
Rui-Zi Hu, Sheng-Kai Zhu, Xin Zhang +8
The single-shot readout data process is essential for the realization of high-fidelity qubits and fault-tolerant quantum algorithms in semiconductor quantum dots. However, the fide…
Controlling Synthetic Spin-Orbit Coupling in a Silicon Quantum Dot with Magnetic Field
Xin Zhang, Yuan Zhou, Rui-Zi Hu +12
Tunable synthetic spin-orbit coupling (s-SOC) is one of the key challenges in various quantum systems, such as ultracold atomic gases, topological superconductors, and semiconducto…
Ultrafast coherent control of a hole spin qubit in a germanium quantum dot
Ke Wang, Gang Xu, Fei Gao +13
Operation speed and coherence time are two core measures for the viability of a qubit. Strong spin-orbit interaction (SOI) and relatively weak hyperfine interaction make holes in g…
Giant anisotropy of spin relaxation and spin-valley mixing in a silicon quantum dot
Xin Zhang, Rui-Zi Hu, Hai-Ou Li +11
In silicon quantum dots (QDs), at a certain magnetic field commonly referred to as the "hot spot", the electron spin relaxation rate (T_1^(-1)) can be drastically enhanced due to s…