95 citations · 355 across the 18 of their papers we have counts for
18 papers
Broadband merged-element Josephson parametric amplifier
Yuting Sun, Xianke Li, Qingyu Wang +5
Broadband quantum-limited amplifiers are essential for quantum information processing, yet challenges in design and fabrication continue to hinder their widespread applications. He…
Fabrication of airbridges with gradient exposure
Yuting Sun, Jiayu Ding, Xiaoyu Xia +6
In superconducting quantum circuits, airbridges are critical for eliminating parasitic slotline modes of coplanar waveguide circuits and reducing crosstalks between direct current…
Tunable Hybrid-Mode Coupler Enabling Strong Interactions between Transmons at Centimeter-Scale Distance
Jianwen Xu, Xiang Deng, Wen Zheng +12
The transmon, a fabrication-friendly superconducting qubit, remains a leading candidate for scalable quantum computing. Recent advances in tunable couplers have accelerated progres…
Long-Range Interaction via Resonator-Induced Phase in Superconducting Qubits
Xiang Deng, Wen Zheng, Xudong Liao +8
Superconducting quantum computing emerges as one of leading candidates for achieving quantum advantage. However, a prevailing challenge is the coding overhead due to limited quantu…
Exploring Parity Magnetic Effects through Experimental Simulation with Superconducting Qubits
Yu Zhang, Yan-Qing Zhu, Jianwen Xu +8
We present the successful realization of four-dimensional (4D) semimetal bands featuring tensor monopoles, achieved using superconducting quantum circuits. Our experiment involves…
Experimental Implementation of Noncyclic and Nonadiabatic Geometric Quantum Gates in a Superconducting Circuit
Zhuang Ma, Jianwen Xu, Tao Chen +6
Quantum gates based on geometric phases possess intrinsic noise-resilience features and therefore attract much attention. However, the implementations of previous geometric quantum…
Measuring quantum geometric tensor of non-Abelian system in superconducting circuits
Wen Zheng, Jianwen Xu, Zhuang Ma +11
Topology played an important role in physics research during the last few decades. In particular, the quantum geometric tensor that provides local information about topological pro…
Accelerated quantum adiabatic transfer in superconducting qubits
Wen Zheng, Jianwen Xu, Zhimin Wang +4
Quantum adiabatic transfer is widely used in quantum computation and quantum simulation. However, the transfer speed is limited by the quantum adiabatic approximation condition, wh…
Optimal control of stimulated Raman adiabatic passage in a superconducting qudit
Wen Zheng, Yu Zhang, Yuqian Dong +9
Stimulated Raman adiabatic passage (STIRAP) is a widely used protocol to realize high-fidelity and robust quantum control in various quantum systems. However, further application o…
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…
Experimental Observation of Tensor Monopoles with a Superconducting Qudit
Xinsheng Tan, Dan-Wei Zhang, Wen Zheng +9
Monopoles play a center role in gauge theories and topological matter. There are two fundamental types of monopoles in physics: vector monopoles and tensor monopoles. Examples of v…
Experimental Realization of Universal Time-optimal non-Abelian Geometric Gates
Zhikun Han, Yuqian Dong, Baojie Liu +14
Based on the geometrical nature of quantum phases, non-adiabatic holonomic quantum control (NHQC) has become a standard technique for enhancing robustness in constructing quantum g…
Switchable next-nearest-neighbor coupling for controlled two-qubit operations
Peng Zhao, Peng Xu, Dong Lan +3
In a superconducting quantum processor with nearest neighbor coupling, the dispersive interaction between adjacent qubits can result in an effective next-nearest-neighbor coupling…
High-contrast ZZ interaction using superconducting qubits with opposite-sign anharmonicity
Peng Zhao, Peng Xu, Dong Lan +4
For building a scalable quantum processor with superconducting qubits, ZZ interaction is of great concern because its residual has a crucial impact to two-qubit gate fidelity. Two-…
Realization of Superadiabatic Two-qubit Gates Using Parametric Modulation in Superconducting Circuits
Ji Chu, Danyu Li, Xiaopei Yang +10
Fast robust two-qubit gate operation with low susceptibility to crosstalk are the key to scalable quantum information processing. Parametrically driven gate is inherently insensiti…
Simulating the Kibble-Zurek mechanism of the Ising model with a superconducting qubit system
Ming Gong, Xueda Wen, Guozhu Sun +11
The Kibble-Zurek mechanism (KZM) predicts the density of topological defects produced in the dynamical processes of phase transitions in systems ranging from cosmology to condensed…
Optimal cooling of a driven artificial atom in dissipative environment
Lingjie Du, Yang Yu
We study microwave-driven cooling in a superconducting flux qubit subjected to environment noises. For the weak decoherence, our analytical results agree well with the experimental…
Low-frequency Landau-Zener-Stückelberg interference in dissipative superconducting qubits
lingjie du, yang yu
Landau-Zener-Stückelberg (LZS) interference of continuously driven superconducting qubits is studied. Going beyond the second order perturbation expansion, we find a time dependent…