385 citations · 1.2k across the 24 of their papers we have counts for
24 papers
Probing spin hydrodynamics on a superconducting quantum simulator
Yun-Hao Shi, Zheng-Hang Sun, Yong-Yi Wang +20
Characterizing the nature of hydrodynamical transport properties in quantum dynamics provides valuable insights into the fundamental understanding of exotic non-equilibrium phases…
Performing SU() operations and rudimentary algorithms in a superconducting transmon qudit for and
Pei Liu, Ruixia Wang, Jing-Ning Zhang +11
Quantum computation architecture based on -level systems, or qudits, has attracted considerable attention recently due to their enlarged Hilbert space. Extensive theoretical and…
Error per single-qubit gate below in a superconducting qubit
Zhiyuan Li, Pei Liu, Peng Zhao +10
Implementing arbitrary single-qubit gates with near perfect fidelity is among the most fundamental requirements in gate-based quantum information processing. In this work, we fabri…
Mapping Topology-Localization Phase Diagram with Quasiperiodic Disorder Using a Programmable Superconducting Simulator
Xuegang Li, Huikai Xu, Junhua Wang +23
We explore topology-localization phase diagram by simulating one-dimensional Su-Schrieffer-Heeger (SSH) model with quasiperiodic disorder using a programmable superconducting simul…
Simulating Chern insulators on a superconducting quantum processor
Zhong-Cheng Xiang, Kaixuan Huang, Yu-Ran Zhang +16
The quantum Hall effect, fundamental in modern condensed matter physics, continuously inspires new theories and predicts emergent phases of matter. Here we experimentally demonstra…
Spurious microwave crosstalk in floating superconducting circuits
Peng Zhao, Yingshan Zhang, Xuegang Li +5
Crosstalk is a major concern in the implementation of large-scale quantum computation since it can degrade the performance of qubit addressing and cause gate errors. Finding the or…
Tunable coupling of widely separated superconducting qubits: A possible application towards a modular quantum device
Peng Zhao, Yingshan Zhang, Guangming Xue +2
Besides striving to assemble more and more qubits in a single monolithic quantum device, taking a modular design strategy may mitigate numerous engineering challenges for achieving…
Quantum crosstalk analysis for simultaneous gate operations on superconducting qubits
Peng Zhao, Kehuan Linghu, Zhiyuan Li +5
Maintaining or even improving gate performance with growing numbers of parallel controlled qubits is a vital requirement for fault-tolerant quantum computing. For superconducting q…
Realizing discrete time crystal in an one-dimensional superconducting qubit chain
Huikai Xu, Jingning Zhang, Jiaxiu Han +5
Floquet engineering, i.e. driving the system with periodic Hamiltonians, not only provides great flexibility in analog quantum simulation, but also supports phase structures of gre…
Probing Operator Spreading via Floquet Engineering in a Superconducting Circuit
S. K. Zhao, Zi-Yong Ge, Zhongcheng Xiang +16
Operator spreading, often characterized by out-of-time-order correlators (OTOCs), is one of the central concepts in quantum many-body physics. However, measuring OTOCs is experimen…
Vacuum-gap transmon qubits realized using flip-chip technology
Xuegang Li, Yingshan Zhang, Chuhong Yang +26
Significant progress has been made in building large-scale superconducting quantum processors based on flip-chip technology. In this work, we use the flip-chip technology to realiz…
Transmon qubit with relaxation time exceeding 0.5 milliseconds
Chenlu Wang, Xuegang Li, Huikai Xu +25
By using the dry etching process of tantalum (Ta) film, we had obtained transmon qubit with the best lifetime (T1) 503 us, suggesting that the dry etching process can be adopted in…
Realisation of adiabatic and diabatic CZ gates in superconducting qubits coupled with a tunable coupler
Huikai Xu, Weiyang Liu, Zhiyuan Li +11
High fidelity two-qubit gates are fundamental for scaling up the superconducting number. We use two qubits coupled via a frequency-tunable coupler which can adjust the coupling str…
Suppression of static ZZ interaction in an all-transmon quantum processor
Peng Zhao, Dong Lan, Peng Xu +5
The superconducting transmon qubit is currently a leading qubit modality for quantum computing, but gate performance in quantum processor with transmons is often insufficient to su…
Characterize noise correlation and enhance coherence via qubit motion
Jiaxiu Han, Zhiyuan Li, Jingning Zhang +11
The identification of spacial noise correlation is of critical importance in developing error-corrected quantum devices, but it has barely been studied so far. In this work, we uti…
Emulating topological chiral magnetic effects in artificial Weyl semimetals
Xinsheng Tan, Yuxin Zhao, Qiang Liu +4
We realized highly tunable Weyl semimetal-bands and subsequently emulated the topological chiral magnetic effects in superconducting quantum circuits. Driving the superconducting q…
Quantum simulation of general semi-classical Rabi model beyond strong driving regime
Kunzhe Dai, Haiteng Wu, Peng Zhao +6
We propose a scheme to simulate the interaction between a two-level system and a classical light field. Under the transversal driving of two microwave tones, the system Hamiltonian…
Topological Maxwell Metal Bands in a Superconducting Qutrit
Xinsheng Tan, Dan-Wei Zhang, Qiang Liu +6
We experimentally explore the topological Maxwell metal bands by mapping the momentum space of condensed-matter models to the tunable parameter space of superconducting quantum cir…
Extensible 3D architecture for superconducting quantum computing
Qiang Liu, Mengmeng Li, Kunzhe Dai +5
Using a multi-layered printed circuit board, we propose a 3D architecture suitable for packaging supercon- ducting chips, especially chips that contain two-dimensional qubit arrays…
Realizing and manipulating space-time inversion symmetric topological semimetal bands with superconducting quantum circuits
Xinsheng Tan, Yuxin Zhao, Qiang Liu +4
We have experimentally realized novel space-time inversion (P-T) invariant Z2-type topological semimetal-bands, via an analogy between the momentum space and a controllable paramet…
Coherent population transfer between weakly-coupled states in a ladder-type superconducting qutrit
H. K. Xu, W. Y. Liu, G. M. Xue +9
Stimulated Raman adiabatic passage (STIRAP) offers significant advantages for coherent population transfer between un- or weakly-coupled states and has the potential of realizing e…
Transport Measurements on Nano-engineered Two Dimensional Superconducting Wire Networks
W. J. Zhang, S. K. He, H. Xiao +6
Superconducting triangular Nb wire networks with high normal-state resistance are fabricated by using a negative tone hydrogen silsesquioxane (HSQ) resist. Robust magnetoresistance…
Edge superconducting state in Nb thin film with rectangular arrays of antidots
W. J. Zhang, S. K. He, H. F. Liu +9
Superconducting Nb thin films with rectangular arrays of submicron antidots have been systemically investigated by transport measurements. In low fields, the magnetoresistance curv…
Wire network behavior in superconducting Nb films with diluted triangular arrays of holes
S. K. He, W. J. Zhang, H. F. Liu +8
We present transport measurement results on superconducting Nb films with diluted triangular arrays (honeycomb and kagomé) of holes. The patterned films have large disk-shaped inte…