87 citations · 476 across the 18 of their papers we have counts for
18 papers
Agents' Last Exam
Yiyou Sun, Xinyang Han, Weichen Zhang +355
Recent AI systems have achieved strong results on a wide range of benchmarks, yet these gains have not translated into economically meaningful deployment across many professional d…
Programmable spectral symmetries in an anisotropic quantum Rabi simulator
Jia-Cheng Song, Yu Liu, Ming-Chuan Wang +28
The quantum Rabi model captures fundamental aspects of light--matter interaction, where symmetry dictates both spectra and dynamics. Over the past years, experiments have explored…
Dissipation-Selected Resonant Fronts in a Driven-Dissipative Bose-Hubbard Lattice
Wei-Guo Ma, Heng Fan
Spatially structured dissipation organizes driven quantum matter beyond Hamiltonian control. We show that a dissipation gradient combined with a Stark-induced detuning ramp selects…
High-order topological pumping on a superconducting quantum processor
Cheng-Lin Deng, Yu Liu, Yu-Ran Zhang +21
High-order topological phases of matter refer to the systems of -dimensional bulk with the topology of -th order, exhibiting -dimensional boundary modes and can be cha…
Interplay between disorder and topology in Thouless pumping on a superconducting quantum processor
Yu Liu, Yu-Ran Zhang, Yun-Hao Shi +24
Topological phases are robust against weak perturbations, but break down when disorder becomes sufficiently strong. However, moderate disorder can also induce topologically nontriv…
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…
Effective Field Theories and Finite-temperature Properties of Zero-dimensional Superradiant Quantum Phase Transitions
Zi-Yong Ge, Heng Fan, Franco Nori
The existence of zero-dimensional superradiant quantum phase transitions seems inconsistent with conventional statistical physics. This work clarifies this apparent inconsistency.…
Variational generation of spin squeezing on one-dimensional quantum devices with nearest-neighbor interactions
Zheng-Hang Sun, Yong-Yi Wang, Yu-Ran Zhang +2
Efficient preparation of spin-squeezed states is important for quantum-enhanced metrology. Current protocols for generating strong spin squeezing rely on either high dimensionality…
Logarithmic light cone, slow entanglement growth, and quantum memory
Yu Zeng, Alioscia Hamma, Yu-Ran Zhang +4
Effective light cones, characterized by Lieb-Robinson bounds, emerge in nonrelativistic local quantum systems. Here, we present several analytical results derived from logarithmic…
Quantum simulation of topological zero modes on a 41-qubit superconducting processor
Yun-Hao Shi, Yu Liu, Yu-Ran Zhang +21
Quantum simulation of different exotic topological phases of quantum matter on a noisy intermediate-scale quantum (NISQ) processor is attracting growing interest. Here, we develop…
Bounded light cone and robust topological order out of equilibrium
Yu Zeng, Alioscia Hamma, Yu-Ran Zhang +3
The ground state degeneracy of topologically ordered gapped Hamiltonians is the bedrock for self-correcting quantum memories, which are unfortunately not stable away from equilibri…
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…
Observation of a superradiant phase transition with emergent cat states
Ri-Hua Zheng, Wen Ning, Ye-Hong Chen +15
Superradiant phase transitions (SPTs) are important for understanding light-matter interactions at the quantum level, and play a central role in criticality-enhanced quantum sensin…
Multipartite entanglement of the topologically ordered state in a perturbed toric code
Yu-Ran Zhang, Yu Zeng, Tao Liu +3
We demonstrate that multipartite entanglement, witnessed by the quantum Fisher information (QFI), can characterize topological quantum phase transitions in the spin- t…
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…
Characterization of topological states via dual multipartite entanglement
Yu-Ran Zhang, Yu Zeng, Heng Fan +2
We demonstrate that multipartite entanglement is able to characterize one-dimensional symmetry-protected topological order, which is witnessed by the scaling behavior of the quantu…
A Double-Threshold Technique for Fast Time-Correspondence Imaging
Ming-Fei Li, Yu-Ran Zhang, Xue-Feng Liu +4
We present a robust imaging method based on time-correspondence imaging and normalized ghost imaging (GI) that sets two thresholds to select the reference frame exposures for image…
Time-correspondence differential ghost imaging
Ming-Fei Li, Yu-Ran Zhang, Kai-Hong Luo +2
Experimental data with digital masks and a theoretical analysis are presented for an imaging scheme that we call time-correspondence differential ghost imaging (TCDGI). It is shown…