7 papers
Non-Local and Non-Markovian Effects of a Microscopic Two-Level Defect in Superconducting Quantum Circuits
Yang Gao, Yujia Zhang, Huikai Xu +12
Microscopic two-level systems (TLS) -- ubiquitous atomic-scale defects in solid-state quantum devices -- are a dominant source of qubit decoherence, yet their role is often conside…
Accelerating Quantum Tensor Network Simulations with Unified Path Variations and Non-Degenerate Batched Sampling
Taylor Lee Patti, Paavai Pari, Yang Gao +5
Quantum trajectory methods reduce the computational overhead of simulating noisy quantum systems, approximating them with stochastically sampled -entry quantum statevector…
Symmetry-protected four double-Weyl fermions and their topological phase transitions in nonmagnetic crystals
Yun-Yun Bai, Ke-Xin Pang, Yan Gao
Realizing Weyl semimetals (WSMs) with the minimal number of Weyl points (WPs) fundamentally simplifies extracting intrinsic topological responses. While a minimum of four conventio…
Suppressing spurious transitions using spectrally balanced pulse
Ruixia Wang, Yaqing Feng, Yujia Zhang +10
Achieving precise control over quantum systems presents a significant challenge, especially in many-body setups, where residual couplings and unintended transitions undermine the a…
Mitigating Measurement Crosstalk via Pulse Shaping
Yang Gao, Feiyu Li, Yang Liu +10
Quantum error correction protocols require rapid and repeated qubit measurements. While multiplexed readout in superconducting quantum systems improves efficiency, fast probe pulse…
Efficient Implementation of Arbitrary Two-Qubit Gates via Unified Control
Zhen Chen, Weiyang Liu, Yanjun Ma +16
The native gate set is fundamental to the performance of quantum devices, as it governs the accuracy of basic quantum operations and dictates the complexity of implementing quantum…