A5000897156- Quantum Information and Cryptography
- Quantum Mechanics and Applications
- Quantum Computing Algorithms and Architecture
- Topological Materials and Phenomena
- Quantum many-body systems
- Topic Modeling
- Quantum and electron transport phenomena
- Quantum optics and atomic interactions
- Cold Atom Physics and Bose-Einstein Condensates
- X-ray Diffraction in Crystallography
- Crystallization and Solubility Studies
- Natural Language Processing Techniques
- Spectroscopy and Quantum Chemical Studies
- Quantum chaos and dynamical systems
- Photonic and Optical Devices
- Advanced Condensed Matter Physics
- Algebraic structures and combinatorial models
- Physics of Superconductivity and Magnetism
- Quantum Mechanics and Non-Hermitian Physics
- Neural Networks and Reservoir Computing
- Laser-Matter Interactions and Applications
- Advanced Thermodynamics and Statistical Mechanics
- Sentiment Analysis and Opinion Mining
- Graphene research and applications
- Advanced Text Analysis Techniques
University of Science and Technology of China
2016-2025
Anhui University
2025
Xi’an University of Posts and Telecommunications
2021-2024
University of Shanghai for Science and Technology
2024
Shanghai University
2023
University of Sheffield
2023
Beihang University
2022-2023
Ocean University of China
2023
Shenyang Institute of Automation
2022
Chinese Academy of Sciences
2009-2022
We report results of a high precision phase estimation based on weak measurement scheme using commercial light-emitting diode. The method is the imaginary part value polarization operator. appeared due to interaction itself. sensitivity our equivalent resolving light pulses order attosecond and it robust against chromatic dispersion.
Revivals of quantum correlations in composite open systems are a useful dynamical feature against detrimental effects the environment. Their occurrence is attributed to flows information back and forth from environments. However, revivals also show up models where environment classical, thus unable store correlations, forbids system-environment back-action. This phenomenon opens basic issues about its interpretation involving role classical environments, memory effects, collective...
Einstein-Podolsky-Rosen (EPR) steering describes the ability of one observer to nonlocally "steer" other observer's state through local measurements. EPR exhibits a unique asymmetric property; i.e., steerability can differ between observers, which lead one-way in only obtains process. This property is inherently different from symmetric concepts entanglement and Bell nonlocality, it has attracted increasing interest. Here, we experimentally demonstrate for class two-qubit states case two...
Einstein-Podolsky-Rosen (EPR) steering describes the ability of one party to remotely affect another's state through local measurements. One most distinguishable properties EPR is its asymmetric aspect. Steering can work in direction but fail opposite direction. This type one-way steering, which different from symmetry concepts entanglement and Bell nonlocality, has garnered much interest. However, an experimental demonstration genuine simplest scenario, i.e., that employs two-qubit systems,...
Einstein-Podolsky-Rosen (EPR) steering, a generalization of the original concept "steering" proposed by Schrödinger, describes ability one system to nonlocally affect another system's states through local measurements. Some experimental efforts test EPR steering in terms inequalities have been made, which usually require many measurement settings. Analogy "all-versus-nothing" (AVN) proof Bell's theorem without inequalities, testing steerability would be more strong and less resources....
Abstract Einstein–Podolsky–Rosen (EPR) steering describes a quantum nonlocal phenomenon in which one party can nonlocally affect the other’s state through local measurements. It reveals an additional concept of non-locality, stands between entanglement and Bell nonlocality. Recently, information task named as subchannel discrimination (SD) provides necessary sufficient characterization EPR steering. The success probability SD using steerable states is higher than any unsteerable states, even...
We present DREAM, the first dialogue-based multiple-choice reading comprehension dataset. Collected from English-as-a-foreign-language examinations designed by human experts to evaluate level of Chinese learners English, our dataset contains 10,197 questions for 6,444 dialogues. In contrast existing datasets, DREAM is focus on in-depth multi-turn multi-party dialogue understanding. likely significant challenges systems: 84% answers are non-extractive, 85% require reasoning beyond a single...
The realization of Majorana zero modes is in the centre intense theoretical and experimental investigations. Unfortunately, their exchange that can reveal exotic statistics needs manipulations are still beyond our capabilities. Here we take an alternative approach. Through Jordan-Wigner transformation, Kitaev's chain supporting two mapped to spin-1/2 chain. We experimentally simulated spin system its evolution with a photonic quantum simulator. This allows us probe geometric phase, which...
Abstract Quantum processes of inherent dynamical nature, such as quantum walks, defy a description in terms an equilibrium statistical physics ensemble. Until now, identifying the general principles behind underlying unitary dynamics has remained key challenge. Here, we show and experimentally observe that split-step walks admit characterization topological order parameter (DTOP). This integer-quantized DTOP measures, at given time, winding geometric phase accumulated by wavefunction during...
Entanglement and the wave function description are two of core concepts that make quantum mechanics such a unique theory. A method to directly measure function, using weak values, was demonstrated by Lundeen et al. [Nature 474, 188 (2011)]. However, it is not applicable scenario disjoint systems, where nonlocal entanglement can be crucial element, since requires obtaining values observables. Here, for first time, we propose bipartite system, modular values. The experimentally implemented...
As a fundamental characteristic of physical entities, waveparticle duality describes whether microscopic entity exhibits wave or particle attributes depending on the specific experimental setup. This assumption is premised notion that properties are inseparable from objective carrier. However, after concept quantum Cheshire cats was proposed, which makes separation possible, premise no longer holds. Furthermore, an demonstration and inspired by this scenario remains scarce. In work, we...
We report the experimental measurement of winding number in an unitary chiral quantum walk. Fundamentally, spin-orbit coupling discrete time walks is implemented via birefringent crystal collinearly cut based on time-multiplexing scheme. Our protocol compact and avoids extra loss, making it suitable for realizing genuine single-photon at a large-scale. By adopting heralded as walker with high resolution technology detection, we carry out 50-step Hadamard discrete-time walk fidelity up to...
The recent experimental progress in parity-time (PT) symmetry has attracted great interest. However, compared with PT symmetry, there are only a few reported results on its counterpart, anti-PT which would lead to new insights and applications. Experimentally simulating demonstrating the properties of is particular Here, we present research for dynamics bosonic Bogoliubov quasi-particles based single photons generated from point defect gallium nitride film. dynamical evolution under...
Einstein-Podolsky-Rosen (EPR) steering, a category of quantum nonlocal correlations describing the ability one observer to influence another party's state via local measurements, is different from both entanglement and Bell nonlocality by possessing an asymmetric property. For multipartite EPR monogamous situation, where two observers cannot simultaneously steer third party, has been investigated rigorously in theory experiment. In contrast shareability steering reduced subsystems allows...
The Kibble-Zurek mechanism (KZM) captures the key physics in non-equilibrium dynamics of second-order phase transitions, and accurately predict density topological defects formed this process. However, despite much effort, veracity central prediction KZM, i.e., scaling production transit rate, is still an open question. Here, we performed experiment, based on a nine-stage optical interferometer with overall fidelity up to 0.975$\pm$0.008, that directly supports KZM quantum dynamics. In...
Reading strategies have been shown to improve comprehension levels, especially for readers lacking adequate prior knowledge. Just as the process of knowledge accumulation is time-consuming human readers, it resource-demanding impart rich general domain into a deep language model via pre-training. Inspired by reading identified in cognitive science, and given limited computational resources -- just pre-trained fixed number training instances we propose three aimed non-extractive machine...
Entanglement generation in discrete time quantum walks is deemed to be another key property beyond the transport behaviors.The latter has been widely used investigating localization or topology walks.However, there are few experiments involving former for challenges full reconstruction of final wave function.Here, we report an experiment demonstrating enhancement entanglement using dynamic disorder.Through reconstructing local spinor state each site, von Neumann entropy can obtained and...
Remote spatial indistinguishability of identical subsystems as a direct controllable quantum resource at distant sites has not been yet experimentally proven. We design setup capable to tune the two photons by independently adjusting their distribution in regions, which leads polarization entanglement starting from uncorrelated photons. The amount uniquely depends on degree remote indistinguishability, quantified an entropic measure $\mathcal{I}$, enables teleportation with fidelities above...
Solar energy based power generation systems can reduce pollutants emissions by reducing fossil fuel consumption. A new option for this idea is the Organic Rankine cycle coupled with a concentrating solar collector. The present study provides performance using energy, exergy and economic approaches, selecting appropriate operating fluid consisting of Linear Fresnel reflector. effect different organic as well nanofluids on overall investigated. Sensitivity analysis discussed to evaluate...
Abstract Intuition suggests that an object should carry all of its physical properties. However, a quantum may not act in such manner—it can temporarily leave some properties where it never appears. This phenomenon is known as the Cheshire cat effect. It has been proposed even permanently discard property and obtain new one did initially have. Here, we observe this effect experimentally by casting non-unitary imaginary-time evolution on photonic cluster state to extract weak values, which...
Spin defects in silicon carbide (SiC) with mature wafer-scale fabrication and micro/nano-processing technologies have recently drawn considerable attention. Although room temperature single-spin manipulation of colour centres SiC has been demonstrated, the typically detected contrast is less than 2%, photon count rate also low. Here, we present coherent single divacancy spins 4H-SiC a high readout (-30%) (150 kilo counts per second) under ambient conditions, which are competitive...
A vehicle logo occupies a small proportion of car and has different shapes. These characteristics bring difficulties to machine-vision-based detection. To improve the accuracy detection in complex backgrounds, an improved YOLOv4 model was presented. Firstly, CSPDenseNet introduced backbone feature extraction network, shallow output layer added replenish information target. Then, deformable convolution residual block employed reconstruct neck structure capture various irregular shape...