88 citations · 505 across the 20 of their papers we have counts for
20 papers
Spectator Leakage Suppression via Invariant Subspace Engineering for CZ Gates in Superconducting Quantum Circuits
Peng Wang, Bin-Han Lu, Tian-Le Wang +11
Spectator leakage poses a fundamental challenge to scalable quantum computing, particularly as frequency collisions become unavoidable in multi-qubit processors. We introduce a lea…
Demonstrating Coherent Quantum Routers for Bucket-Brigade Quantum Random Access Memory on a Superconducting Processor
Sheng Zhang, Yun-Jie Wang, Peng Wang +19
Quantum routers (QRouters) are essential components of bucket-brigade quantum random access memory (QRAM), enabling quantum applications such as Grover's search and quantum machine…
Electric-field independent spin-orbit coupling gap in hBN-encapsulated bilayer graphene
Fang-Ming Jing, Zhen-Xiong Shen, Guo-Quan Qin +8
The weak spin-orbit coupling (SOC) in bilayer graphene (BLG) is essential for encoding spin qubits while bringing technical challenges for extracting the opened small SOC gap Δ_SO…
Hysteretic responses of nanomechanical resonators based on crumpled few-layer graphene
Heng Lu, Chen Yang, Ce Zhang +8
Manipulating two-dimensional materials occasionally results in crumpled membranes. Their complicated morphologies feature an abundance of folds, creases and wrinkles that make each…
Switching spin filling sequence in a bilayer graphene quantum dot through trigonal warping
Guo-Quan Qin, Fang-Ming Jing, Tian-Yue Hao +5
We demonstrate a switchable electron shell structure in a bilayer graphene quantum dot by manipulating the trigonal warping effect upon electrical gating. Under a small perpendicul…
Electrically-tunable graphene nanomechanical resonators
Yi-Bo Wang, Zhuo-Zhi Zhang, Chen-Xu Wu +4
The excellent mechanical properties make graphene promising for realizing nanomechanical resonators with high resonant frequencies, large quality factors, strong nonlinearities, an…
Revealing spin-flip two-level systems using ultra-thin film superconducting resonators
Zi-Qing Huang, Shu-Kun Ye, Yong-Qiang Xu +8
Material disorders are one of the major sources of noise and loss in solid-state quantum devices, whose behaviors are often modeled as two-level systems (TLSs) formed by charge tun…
Realizing Scalable Conditional Operations through Auxiliary Energy Levels
Sheng Zhang, Peng Duan, Yun-Jie Wang +19
In the noisy intermediate-scale quantum (NISQ) era, flexible quantum operations are essential for advancing large-scale quantum computing, as they enable shorter circuits that miti…
Van der Waals Magnetic Electrode Transfer for Two-Dimensional Spintronic Devices
Zhongzhong Luo, Zhihao Yu, Xiangqian Lu +11
Two-dimensional (2D) materials are promising candidates for spintronic applications. Maintaining their atomically smooth interfaces during integration of ferromagnetic (FM) electro…
Tunable p-n junction barriers in few-electron bilayer graphene quantum dots
Fang-Ming Jing, Guo-Quan Qin, Zhuo-Zhi Zhang +2
Graphene quantum dots provide promising platforms for hosting spin, valley, or spin-valley qubits. Taking advantage of the electrically generated band gap and the ambipolar nature,…
Sliding nanomechanical resonators
Yue Ying, Zhuo-Zhi Zhang, Joel Moser +3
The motion of a vibrating object is determined by the way it is held. This simple observation has long inspired string instrument makers to create new sounds by devising elegant st…
Gate-Controlled Quantum Dots Based on Two-Dimensional Materials
Fang-Ming Jing, Zhuo-Zhi Zhang, Guo-Quan Qin +5
Two-dimensional (2D) materials are a family of layered materials exhibiting rich exotic phenomena, such as valley-contrasting physics. Down to single-particle level, unraveling fun…
Tunable parametric amplification of a graphene nanomechanical resonator in the nonlinear regime
Zi-Jia Su, Yue Ying, Xiang-Xiang Song +6
Parametric amplification is widely used in nanoelectro-mechanical systems to enhance the transduced mechanical signals. Although parametric amplification has been studied in differ…
Coherent phonon dynamics in spatially separated graphene mechanical resonators
Zhuo-Zhi Zhang, Xiang-Xiang Song, Gang Luo +9
Vibrational modes in mechanical resonators provide a promising candidate to interface and manipulate classical and quantum information. The observation of coherent dynamics between…
Electrotunable artificial molecules based on van der Waals heterostructures
Zhuo-Zhi Zhang, Xiang-Xiang Song, Gang Luo +9
Quantum confinement has made it possible to detect and manipulate single-electron charge and spin states. The recent focus on two-dimensional (2D) materials has attracted significa…
Quantum dot behavior in transition metal dichalcogenides nanostructures
Gang Luo, Zhuo-Zhi Zhang, Hai-Ou Li +5
Recently, transition metal dichalcogenides (TMDCs) semiconductors have been utilized for investigating quantum phenomena because of their unique band structures and novel electroni…
Temperature dependence of Coulomb oscillations in a few-layer two-dimensional WS2 quantum dot
Xiang-Xiang Song, Zhuo-Zhi Zhang, Jie You +5
Standard semiconductor fabrication techniques are used to fabricate a quantum dot (QD) made of WS2, where Coulomb oscillations were found. The full-width-at-half-maximum of the Cou…
Tunable Hybrid Qubit in a GaAs Double Quantum Dot
Gang Cao, Hai-Ou Li, Guo-Dong Yu +8
We experimentally demonstrate a tunable hybrid qubit in a five-electron GaAs double quantum dot. The qubit is encoded in the (1,4) charge regime of the double dot and can be manipu…
A gate defined quantum dot on the two-dimensional transition metal dichalcogenide semiconductor WSe2
Xiang-Xiang Song, Di Liu, Vahid Mosallanejad +8
Two-dimensional layered materials, such as transition metal dichalcogenides (TMDCs), are promising materials for future electronics owing to their unique electronic properties. Wit…
Suspending Effect on Low-Frequency Charge Noise in Graphene Quantum Dot
Xiang-Xiang Song, Hai-Ou Li, Jie You +7
Charge noise is critical in the performance of gate-controlled quantum dots (QDs). Here we show the 1/f noise for a microscopic graphene QD is substantially larger than that for a…