87 citations · 221 across the 14 of their papers we have counts for
14 papers
Phonon-assisted transport and hole-phonon coupling in GaAs double quantum dots
Jin Leng, Wei-Zhu Liao, Hao-Tian Jiang +5
Hole-phonon interactions play an important role in transport and decoherence processes in semiconductor quantum dots. Here we investigate hole-phonon coupling in a gate-defined GaA…
On-chip Parametric Amplification in a Double Quantum Dots Circuit
Yong-Qiang Xu, Rui Wu, Si-Si Gu +8
In microwave-based quantum circuits, including double quantum dots (DQDs), superconducting qubits and spin qubits, parametric amplifiers are indispensable in achieving high-fidelit…
Cryogenic interface-state filling and tunneling mechanisms in strained Ge/SiGe heterostructures
Jingrui Ma, Yuan Kang, Rui Wu +11
Traps at the semiconductor-oxide interface are considered as a major source of instability in strained Ge/SiGe quantum devices, yet the quantified study of their cryogenic behavior…
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…
Highly tunable 2D silicon quantum dot array with coupling beyond nearest neighbors
Ning Wang, Jia-Min Kang, Wen-Long Lu +6
Scaling up quantum dots to two-dimensional (2D) arrays is a crucial step for advancing semiconductor quantum computation. However, maintaining excellent tunability of quantum dot p…
Pursuing high-fidelity control of spin qubits in natural Si/SiGe quantum dot
Ning Wang, Shao-Min Wang, Run-Ze Zhang +6
Electron spin qubits in silicon are a promising platform for fault-tolerant quantum computing. Low-frequency noise, including nuclear spin fluctuations and charge noise, is a prima…
Ultrafast switchable spin-orbit coupling for silicon spin qubits via spin valves
Ranran Cai, Fang-Ge Li, Bao-Chuan Wang +3
Recent experimental breakthroughs, particularly for single-qubit and two-qubit gates exceeding the error correction threshold, highlight silicon spin qubits as leading candidates f…
Probing two driven double quantum dots strongly coupled to a cavity
Si-Si Gu, Sigmund Kohler, Yong-Qiang Xu +8
We experimentally and theoretically study a driven hybrid circuit quantum electrodynamics (cQED) system beyond the dispersive coupling regime. Treating the cavity as part of the dr…
Microwave-resonator-detected excited-state spectroscopy of a double quantum dot
Ming-Bo Chen, Shun-Li Jiang, Ning Wang +6
As an application in circuit quantum electrodynamics (cQED) coupled systems, superconducting resonators play an important role in high-sensitivity measurements in a superconducting…
Floquet state depletion in ac-driven circuit QED
Ming-Bo Chen, Bao-Chuan Wang, Sigmund Kohler +9
We perform Floquet spectroscopy in a GaAs double quantum dot system coupled to a high-impedance superconducting resonator. By applying microwave induced consecutive passages under…
Correlated spectrum of distant semiconductor qubits coupled by microwave photons
Bao-Chuan Wang, Ting Lin, Hai-Ou Li +7
We develop a new spectroscopic method to quickly and intuitively characterize the coupling of two microwave-photon-coupled semiconductor qubits via a high-impedance resonator. High…
A tunable hybrid qubit in a triple quantum dot
Bao-Chuan Wang, Gang Cao, Hai-Ou Li +5
We experimentally demonstrate quantum coherent dynamics of a triple-dot-based multi-electron hybrid qubit. Pulsed experiments show that this system can be conveniently initialized,…
Spin blockade and coherent dynamics of high-spin states in a three-electron double quantum dot
Bao-Bao Chen, Bao-Chuan Wang, Gang Cao +6
Asymmetry in a three-electron double quantum dot (DQD) allows spin blockade, when spin-3/2 (quadruplet) states and spin-1/2 (doublet) states have different charge configurations. W…
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…