395 citations · 2.5k across the 32 of their papers we have counts for
33 papers
Large-scale multimode entangling-gate synthesis in trapped-ion systems
YingYe Huang, Wentao Chen, Guoyu Zou +3
Trapped-ion systems have emerged as a leading platform for scalable quantum information processing owing to their high-fidelity operations and long-range entangling capabilities. A…
Realization of Trapped Ion Dynamics in the Strong-Field Regime and Non-Markovianity
Kamran Rehan, Hengchao Tu, Tadeu Tassis +5
We experimentally investigate trapped ion dynamics in the strong-driving regime, where the Rabi frequency (Omega) is comparable to the vibrational mode frequency (nu). In the conve…
Quantum Compiling with Reinforcement Learning on a Superconducting Processor
Z. T. Wang, Qiuhao Chen, Yuxuan Du +16
To effectively implement quantum algorithms on noisy intermediate-scale quantum (NISQ) processors is a central task in modern quantum technology. NISQ processors feature tens to a…
Unambiguous discrimination of general quantum operations
Weizhou Cai, Jing-Ning Zhang, Ziyue Hua +10
The discrimination of quantum operations has long been an intriguing challenge, with theoretical research significantly advancing our understanding of the quantum features in discr…
Realization of programmable Ising models in a trapped-ion quantum simulator
Yao Lu, Wentao Chen, Shuaining Zhang +4
A promising paradigm of quantum computing for achieving practical quantum advantages is quantum annealing or quantum approximate optimization algorithm, where the classical problem…
Performing SU() operations and rudimentary algorithms in a superconducting transmon qudit for and
Pei Liu, Ruixia Wang, Jing-Ning Zhang +11
Quantum computation architecture based on -level systems, or qudits, has attracted considerable attention recently due to their enlarged Hilbert space. Extensive theoretical and…
Error-Mitigated Quantum Simulation of Interacting Fermions with Trapped Ions
Wentao Chen, Shuaining Zhang, Jialiang Zhang +7
Quantum error mitigation has been extensively explored to increase the accuracy of the quantum circuits in noisy-intermediate-scale-quantum (NISQ) computation, where quantum error…
Error per single-qubit gate below in a superconducting qubit
Zhiyuan Li, Pei Liu, Peng Zhao +10
Implementing arbitrary single-qubit gates with near perfect fidelity is among the most fundamental requirements in gate-based quantum information processing. In this work, we fabri…
Entangling gates for trapped-ion quantum computation and quantum simulation
Zhengyang Cai, Chunyang Luan, Lingfeng Ou +4
The trapped-ion system has been a leading platform for practical quantum computation and quantum simulation since the first scheme of a quantum gate was proposed by Cirac and Zolle…
Mapping Topology-Localization Phase Diagram with Quasiperiodic Disorder Using a Programmable Superconducting Simulator
Xuegang Li, Huikai Xu, Junhua Wang +23
We explore topology-localization phase diagram by simulating one-dimensional Su-Schrieffer-Heeger (SSH) model with quasiperiodic disorder using a programmable superconducting simul…
Anomalous Heat Transfer in Nonequilibrium Quantum Systems
Teng Ma, Jing-Ning Zhang, Yuan-Sheng Wang +2
Anomalous heat transfer (AHT), a process by which heat spontaneously flows from a cold system into a hot one, superficially contradicts the Clausius statement of the second law of…
Fast multi-qubit global-entangling gates without individual addressing of trapped ions
Kaizhao Wang, Jing-Fan Yu, Pengfei Wang +3
We propose and study ways speeding up of the entangling operations in the trapped ions system with high fidelity. First, we find a scheme to increase the speed of a two-qubit gate…
Significant-loophole-free test of Kochen-Specker contextuality using two species of atomic-ions
Pengfei Wang, Junhua Zhang, Chun-Yang Luan +7
Quantum measurements cannot be thought of as revealing preexisting results, even when they do not disturb any other measurement in the same trial. This feature is called contextual…
Error-mitigated deep-circuit quantum simulation of open systems: steady state and relaxation rate problems
Anbang Wang, Jingning Zhang, Ying Li
Deep-circuit quantum computation, like Shor's algorithm, is undermined by error accumulation, and near-future quantum techniques are far from adequate for full-fledged quantum erro…
Vacuum-gap transmon qubits realized using flip-chip technology
Xuegang Li, Yingshan Zhang, Chuhong Yang +26
Significant progress has been made in building large-scale superconducting quantum processors based on flip-chip technology. In this work, we use the flip-chip technology to realiz…
Transmon qubit with relaxation time exceeding 0.5 milliseconds
Chenlu Wang, Xuegang Li, Huikai Xu +25
By using the dry etching process of tantalum (Ta) film, we had obtained transmon qubit with the best lifetime (T1) 503 us, suggesting that the dry etching process can be adopted in…
Error-Mitigated Quantum Gates Exceeding Physical Fidelities in a Trapped-Ion System
Shuaining Zhang, Yao Lu, Kuan Zhang +4
Various quantum applications can be reduced to estimating expectation values, which are inevitably deviated by operational and environmental errors. Although errors can be tackled…
Probing Quantum Fluctuations of Work with a Trapped Ion
Yao Lu, Shuoming An, Jing-Ning Zhang +1
In this chapter, we illustrate how a trapped ion system can be used for the experimental study of quantum thermodynamics, in particular, quantum fluctuation of work. As technology…
Scalable global entangling gates on arbitrary ion qubits
Yao Lu, Shuaining Zhang, Kuan Zhang +5
A quantum algorithm can be decomposed into a sequence consisting of single qubit and 2-qubit entangling gates. To optimize the decomposition and achieve more efficient construction…
Quantum simulation of the quantum Rabi model in a trapped ion
Dingshun Lv, Shuoming An, Zhenyu Liu +5
The quantum Rabi model, involving a two-level system and a bosonic field mode, is arguably the simplest and most fundamental model describing quantum light-matter interactions. His…
Verification of the Quantum Nonequilibrium Work Relation in the Presence of Decoherence
Andrew Smith, Yao Lu, Shuoming An +6
Although nonequilibrium work and fluctuation relations have been studied in detail within classical statistical physics, extending these results to open quantum systems has proven…
Work Distributions in 1-D Fermions and Bosons with Dual Contact Interactions
Bin Wang, Jing-Ning Zhang, H. T. Quan
We extend the well-known static duality \cite{girardeau1960relationship, cheon1999fermion} between 1-D Bosons and 1-D Fermions to the dynamical version. By utilizing this dynamical…
Single-qubit quantum memory exceeding -minute coherence time
Ye Wang, Mark Um, Junhua Zhang +6
A long-time quantum memory capable of storing and measuring quantum information at the single-qubit level is an essential ingredient for practical quantum computation and com-munic…
Experimental Preparation of High NOON States for Phonons
Junhua Zhang, Mark Um, Dingshun Lv +3
Multi-party entangled states have important applications in quantum metrology and quantum computation. Experimental preparation of large entangled state, in particular, the NOON st…