456 citations · 3k across the 45 of their papers we have counts for
45 papers
Experimental demonstration of spontaneous symmetry breaking with emergent multi-qubit entanglement
Ri-Hua Zheng, Wen Ning, Jia-Hao Lü +8
Spontaneous symmetry breaking (SSB) is crucial to the occurrence of phase transitions. Once a phase transition occurs, a quantum system presents degenerate eigenstates that lack th…
Exploring Hilbert-Space Fragmentation on a Superconducting Processor
Yong-Yi Wang, Yun-Hao Shi, Zheng-Hang Sun +22
Isolated interacting quantum systems generally thermalize, yet there are several examples for the breakdown of ergodicity, such as many-body localization and quantum scars. Recentl…
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…
Observation of multiple steady states with engineered dissipation
Li Li, Tong Liu, Xue-Yi Guo +8
Simulating the dynamics of open quantum systems is essential in achieving practical quantum computation and understanding novel nonequilibrium behaviors. However, quantum simulatio…
Tunable Coupling Architectures with Capacitively Connecting Pads for Large-Scale Superconducting Multi-Qubit Processors
Gui-Han Liang, Xiao-Hui Song, Cheng-Lin Deng +20
We have proposed and experimentally verified a tunable inter-qubit coupling scheme for large-scale integration of superconducting qubits. The key feature of the scheme is the inser…
The simulation of non-Hermitian disordered system in linear circuits
Luhong Su, Hui Jiang, Zhan Wang +2
Non-Hermitian skin effect (NHSE) is a novel phenomenon appearing in non-Hermitian systems. Here, we report the experimental observation of NHSE. Different from the previous non-rec…
Revealing inherent quantum interference and entanglement of a Dirac particle
Wen Ning, Ri-Hua Zheng, Yan Xia +7
Although originally predicted in relativistic quantum mechanics, Zitterbewegung can also appear in some classical systems, which leads to the important question of whether Zitterbe…
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…
Exceptional entanglement phenomena: non-Hermiticity meeting non-classicality
Pei-Rong Han, Fan Wu, Xin-Jie Huang +11
Non-Hermitian (NH) extension of quantum-mechanical Hamiltonians represents one of the most significant advancements in physics. During the past two decades, numerous captivating NH…
Observation of entanglement negativity transition of pseudo-random mixed states
Tong Liu, Shang Liu, Hekang Li +7
Multipartite entanglement is a key resource for quantum computation. It is expected theoretically that entanglement transition may happen for multipartite random quantum states, ho…
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…
Observation of critical phase transition in a generalized Aubry-André-Harper model on a superconducting quantum processor with tunable couplers
Hao Li, Yong-Yi Wang, Yun-Hao Shi +15
Quantum simulation enables study of many-body systems in non-equilibrium by mapping to a controllable quantum system, providing a new tool for computational intractable problems. H…
Entanglement-interference complementarity and experimental demonstration in a superconducting circuit
Xin-Jie Huang, Pei-Rong Han, Wen Ning +12
Quantum entanglement between an interfering particle and a detector for acquiring the which-path information plays a central role for enforcing Bohr's complementarity principle. Ho…
ScQ cloud quantum computation for generating Greenberger-Horne-Zeilinger states of up to 10 qubits
Chi-Tong Chen, Yun-Hao Shi, Zhong-Cheng Xiang +9
In this study, we introduce an online public quantum computation platform, named as ScQ, based on a 1D array of a 10-qubit superconducting processor. Single-qubit rotation gates ca…
Variational Quantum Computation of Molecular Linear Response Properties on a Superconducting Quantum Processor
Kaixuan Huang, Xiaoxia Cai, Hao Li +12
Simulating response properties of molecules is crucial for interpreting experimental spectroscopies and accelerating materials design. However, it remains a long-standing computati…
Quantum simulation of Hawking radiation and curved spacetime with a superconducting on-chip black hole
Yun-Hao Shi, Run-Qiu Yang, Zhongcheng Xiang +10
Hawking radiation is one of the quantum features of a black hole that can be understood as a quantum tunneling across the event horizon of the black hole, but it is quite difficult…
Observation of Emergent Gauge Invariance in a Superconducting Circuit
Zhan Wang, Zi-Yong Ge, Zhongcheng Xiang +8
Lattice gauge theories (LGTs) are one of the most fundamental subjects in many-body physics, and has recently attracted considerable research interests in quantum simulations. Here…
Metrological characterisation of non-Gaussian entangled states of superconducting qubits
Kai Xu, Yu-Ran Zhang, Zheng-Hang Sun +12
Multipartite entangled states are significant resources for both quantum information processing and quantum metrology. In particular, non-Gaussian entangled states are predicted to…
Rapid and Unconditional Parametric Reset Protocol for Tunable Superconducting Qubits
Yu Zhou, Zhenxing Zhang, Zelong Yin +16
Qubit initialization is a critical task in quantum computation and communication. Extensive efforts have been made to achieve this with high speed, efficiency and scalability. Howe…
Realizing a quantum generative adversarial network using a programmable superconducting processor
Kaixuan Huang, Zheng-An Wang, Chao Song +11
Generative adversarial networks are an emerging technique with wide applications in machine learning, which have achieved dramatic success in a number of challenging tasks includin…
Demonstration of a non-Abelian geometric controlled-Not gate in a superconducting circuit
Kai Xu, Wen Ning, Xin-Jie Huang +6
Holonomies, arising from non-Abelian geometric transformations of quantum states in Hilbert space, offer a promising way for quantum computation. These holonomies are not commutabl…