G
Gang Xu
Researcher at University of Science and Technology of China
Publications - 16
Citations - 179
Gang Xu is an academic researcher from University of Science and Technology of China. The author has contributed to research in topics: Quantum dot & Qubit. The author has an hindex of 6, co-authored 11 publications receiving 91 citations.
Papers
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Journal ArticleDOI
Ultrafast coherent control of a hole spin qubit in a germanium quantum dot
Ke Wang,Gang Xu,Fei-Fei Gao,He Liu,Rong Ma,Xikun Zhang,Zhan Wang,Gang Cao,Ting Wang,Jian-Jun Zhang,Dimitrie Culcer,Xuedong Hu,Hong-Wen Jiang,Haiou Li,Guang-Can Guo +14 more
TL;DR: In this article , a hole-based double quantum dot in a germanium hut wire (GHW) was demonstrated to achieve a Rabi frequency exceeding 540 MHz at a magnetic field of 100 mT, setting a record for ultrafast spin qubit control.
Journal ArticleDOI
Coupling a Germanium Hut Wire Hole Quantum Dot to a Superconducting Microwave Resonator.
Yan Li,Shu-Xiao Li,Fei Gao,Hai-Ou Li,Gang Xu,Ke Wang,Di Liu,Gang Cao,Ming Xiao,Ting Wang,Jian-Jun Zhang,Guang-Can Guo,Guo-Ping Guo +12 more
TL;DR: A hybrid architecture in which an on-chip superconducting microwave resonator is coupled to the holes in a Ge quantum dot and the charge stability diagram can be obtained from the amplitude and phase responses of the resonator independently from the DC transport measurement.
Journal ArticleDOI
Measuring hole spin states of single quantum dot in germanium hut wire
Shu-Xiao Li,Yan Li,Fei Gao,Gang Xu,Hai-Ou Li,Gang Cao,Ming Xiao,Ting Wang,Jian-Jun Zhang,Guo-Ping Guo +9 more
TL;DR: In this paper, a single quantum dot was fabricated on a germanium hut wire and a standard charge stability diagram with excited states was observed by DC transport measurements, which was used for distinguishing different hole parities and spin states.
Journal ArticleDOI
Dipole coupling of a tunable hole double quantum dot in germanium hut wire to a microwave resonator
Gang Xu,Yan Li,Fei Gao,Hai-Ou Li,H. M. Liu,Ke Wang,Gang Cao,Ting Wang,Jian-Jun Zhang,Guang-Can Guo,Guo-Ping Guo +10 more
TL;DR: In this article, a reflection line resonator was coupled to a hole double quantum dot (DQD) formed in Ge hut wire, and the DQD interdot tunneling rate was shown to be tunable from 6.2 GHz to 8.5 GHz with a charge qubit decoherence rate of 0.28 GHz.