78 citations · 289 across the 25 of their papers we have counts for
25 papers
Thouless pumping and generation of squeezed Fock-state superpositions in a Fock-state lattice
Ruo Kun Cai, Ling Lin, Chun Wang Wu +2
In this paper, Thouless pumping in a one-dimensional semi-infinite Fock-state lattice is investigated. A distinctive feature of such lattices is the intrinsic -dependent…
Quantum-Optical Bound States in the Continuum
Ruo Kun Cai, Zhi Jiao Deng, Chun Wang Wu +1
Bound states in the continuum (BICs) are counterintuitive localized states that lie within the continuum of extended states. While extensively realized and utilized in classical wa…
Observation of quantum multi-Mpemba effect in a trapped-ion system
Gang Xia, Yu-Jie Zheng, Jing Huang +9
The quantum Mpemba effect (ME) in Markovian systems is conventionally explained by a smaller overlap between the initial state and the slowest decay mode (SDM). Such state, initial…
Confined non-Hermitian skin effect in a semi-infinite Fock-state lattice
Zhi Jiao Deng, Xing Yao Mi, Ruo Kun Cai +2
In this paper, we investigate the non-Hermitian skin effect in a semi-infinite Fock-state lattice, where the inherent coupling scales as \sqrt{n}. By analytically solving a non-uni…
A Solvable Semi-infinite Fock-state-lattice SSH Model: the Stable Topological Zero Mode and the Non-Hermitian Bound Effect
Xing Yao Mi, Yong-Chun Liu, Zhi Jiao Deng +2
Fock-state lattice (FSL) offers a powerful quantum simulator for topological phenomena due to the unbounded scalability and ease of implementation. Nevertheless, the unique topolog…
Stark-induced tunable phase transition in the two-photon Dicke-Stark model
Cui-Lu Zhai, Wei Wu, Chun-Wang Wu +1
We theoretically investigate the superradiant phase transition (SPT) in the two-photon Dicke-Stark model, which incorporates both Rabi and Stark coupling. By introducing a Stark co…
Thermometry of Trapped Ions Based on Bichromatic Driving
Xie-Qian Li, Yi Tao, Ting Chen +4
Accurate thermometry of laser-cooled ions is crucial for the performance of the trapped-ions quantum computing platform. However, most existing methods face a computational exponen…
Phonon Number Measurement Using Optimal Composite Pulses
Xie-Qian Li, Chun-Wang Wu, Ping-Xing Chen
Measuring the phonon number of the laser-cooled ions is an indispensable step in evaluating whether an ion is in ground state. At present, commonly used methods in the experiments…
Observation of quantum strong Mpemba effect
Jie Zhang, Gang Xia, Chun-Wang Wu +10
An ancient and counterintuitive phenomenon know as the Mpemba effect (water can cool faster when initially heated up) showcases the critical role of initial conditions in relaxatio…
PT-symmetric quantum sensing: advantages and restrictions
Yan-Yi Wang, Chun-Wang Wu, Wei Wu +1
Quantum sensing utilizing unique quantum properties of non-Hermitian systems to realize ultra-precision measurements has been attracting increasing attention. However, the debate o…
Accelerating relaxation through Liouvillian exceptional point
Yan-Li Zhou, Xiao-Die Yu, Chun-Wang Wu +4
We investigate speeding up of relaxation of Markovian open quantum systems with the Liouvillian exceptional point (LEP), where the slowest decay mode degenerate with a faster decay…
Observation of quantum temporal correlations well beyond Luders bound
Chun-Wang Wu, Man-Chao Zhang, Yan-Li Zhou +10
Quantum correlations, both spatial and temporal, are the central pillars of quantum mechanics. Over the last two decades, a big breakthrough in quantum physics is its complex exten…
Experimental violation of Leggett-Garg inequality in a three-level trapped-ion system
Tianxiang Zhan, Chunwang Wu, Manchao Zhang +9
Leggett-Garg inequality (LGI) studies the temporal correlation in the evolution of physical systems. Classical systems obey the LGI but quantum systems may violate it. The extent o…
Parallel-Electromagnetically-Induced-Transparency Near Ground-State Cooling of a Trapped-ion Crystal
Jie Zhang, Man-Chao Zhang, Yi Xie +8
We theoretically propose and experimentally demonstrate a parallel-electromagnetically-induced transparency (parallel-EIT) cooling technique for ion crystals in the Paul trap. It h…
Investigation of the Effect of Quantum Measurement on Parity-Time Symmetry
Wei-Chen Wang, Yi Xie, Man-Chao Zhang +6
Symmetry, including the parity-time ()-symmetry, is a striking topic, widely discussed and employed in many fields. It is well-known that quantum measurement can dest…
Qubitization of Bosons
Xin-Yu Huang, Lang Yu, Xu Lu +5
A binary mapping from Fock space of bosonic state to qubits is given. Based on the binary mapping, we construte an algorithm of qubitization of bosons with complexity O(log(N)). As…
Estimation of the Laser Frequency Nosie Spectrum by Continuous Dynamical Decoupling
Manchao Zhang, Yi Xie, Jie Zhang +5
Decoherence induced by the laser frequency noise is one of the most important obstacles in the quantum information processing. In order to suppress this decoherence, the noise powe…
Weak-to-strong transition of quantum measurement in a trapped-ion system
Yiming Pan, Jie Zhang, Eliahu Cohen +3
Quantum measurement remains a puzzle through its stormy history from the birth of quantum mechanics to state-of-the-art quantum technologies. Two complementary measurement schemes…
Scheme and Experimental Demonstration of Fully Atomic Weak Value Amplification
Chun-wang Wu, Jie Zhang, Yi Xie +4
In this paper, we explore the possibilities of realizing weak value amplification (WVA) using purely atomic degrees of freedom. Our scheme identifies the internal electronic states…
Digital Quantum Simulation of Hadronization in Yang-Mills Theory
De-Sheng Li, Chun-Wang Wu, Ming Zhong +2
A quantum algorithm of SU(N) Yang-Mills theory is formulated in terms of quantum circuits. It can nonperturbatively calculate the Dyson series and scattering amplitudes with polyno…
Quantum simulation of the Weyl equation with a trapped ion
De-Sheng Li, Chun-Wang Wu, Lin-Ze He +2
The Weyl equation describes chiral massless relativistic particles, called Weyl fermions, which have important relations to neutrinos. A direct observation of the dynamics of Weyl…
Scalable one-way quantum computer using on-chip resonator qubits
Chun-Wang Wu, Ming Gao, Hong-Yi Li +4
We propose a scalable and robust architecture for one-way quantum computation using coupled networks of superconducting transmission line resonators. In our protocol, quantum infor…
Large detuning limit for the multipartite systems interacting with electromagnetic fields
Hong-Yi Li, Chun-Wang Wu, Ping-Xing Chen +1
We study the dynamics of the multipartite systems nonresonantly interacting with electromagnetic fields and show that, since the coupling strength is collectively enhanced by t…
Quantum superposition of localized and delocalized phases of photons
Chun-Wang Wu, Ming Gao, Zhi-Jiao Deng +3
Based on a variant of 2-site Jaynes-Cummings-Hubbard model, which is constructed using superconducting circuits, we propose a method to coherently superpose the localized and deloc…