17 papers
Connectivity-induced surface-loss penalty in superconducting qubit-coupler lattices
Xu-Yang Gu, Gui-Han Liang, Ming-Chuan Wang +7
Recent advances in design and fabrication have increased the energy-relaxation times of isolated superconducting transmon qubits to the hundreds-of-microseconds regime, with report…
Revealing Entanglement-Growth Mechanisms through the Magic Barrier
Lv Zhang, Shi-Xin Zhang, Heng Fan +1
Quantum entanglement and magic are complementary resources underlying quantum computational advantage, yet their dynamical relation in many-body systems remains poorly understood.…
Observation and Modulation of the Quantum Mpemba Effect on a Superconducting Quantum Processor
Yueshan Xu, Cai-Ping Fang, Bing-Jie Chen +33
In non-equilibrium quantum systems, the quantum Mpemba effect (QME) emerges as a counterintuitive phenomenon: systems exhibiting greater initial symmetry breaking restore symmetry…
Interference-Induced Suppression of Doublon Transport and Prethermalization in the Extended Bose-Hubbard Model
Zhen-Ting Bao, Kai Xu, Heng Fan
The coherent mobility of doublons, arising from second-order virtual dissociation-recombination processes, fundamentally limits their use as information carriers in the strongly in…
A quantum nonlinear solver based on the asymptotic numerical method
Yongchun Xu, Zengtao Kuang, Qun Huang +7
Quantum computing offers a promising avenue for advancing computational methods in science and engineering. In this work, we introduce the quantum asymptotic numerical method (qANM…
Probe of Generic Quantum Contextuality and Nonlocal Resources for Qubits
Wei Li, Min-Xuan Zhou, Yun-Hao Shi +3
We reveal that the entropic uncertainty relation with a quantum memory is able to intrinsically connect local generic contextuality addressed in the pioneering work by Spekkens and…