Explanipedia

Mixed-State Berry Curvature in quantum multiparameter estimations Open

Xiaoguang Wang, Xiaoming Lu, Yunbo Zhang, Libin Fu, Shu Chen · 2025

For pure states, the quantum Berry curvature was well studied. However, the quantum curvature for mixed states has received less attention. From the concept of symmetric logarithmic derivative, we introduce a mixed-state quantum curvature …

Exploring the Development and Environmental Benefits of Wind Power Technology in Clean Energy Supply Open

Libin Fu · 2025

Wind power is becoming a key renewable energy solution under the dual pressure of global climate change and the energy crisis. Current research is inadequate in terms of technology and ecological synergy mechanism, regional industrial syne…

Non-Hermitian effects on the quantum parameter estimation in pseudo-Hermitian systems Open

Lin Wei, Haijun Xing, Libin Fu, H. D. Liu · 2025

Quantum Fisher Information (QFI) is a fundamental quantity in quantum parameter estimation theory, characterizing the ultimate precision bound of parameter estimation. In this work, we investigate QFI for quantum states in non-Hermitian sy…

Emergent continuous time crystal in dissipative quantum spin system without driving Open

Shu Yang, Zeqing Wang, Libin Fu, Jianwen Jie · 2025

Time crystals are a nonequilibrium phase of matter that extend fundamental spontaneous symmetry breaking into the temporal dimension, typically requiring external driving for their realization. Here, we explore the nonequilibrium phase dia…

Durability and microstructure of polymer-based cement joint sealant Open

Tao Chen, Zhihang Wang, Pengfei Qin, Libin Fu, Wenjing Wang , et al. · 2025

Cat Swarm Algorithm Generated Based on Genetic Programming Framework Applied in Digital Watermarking Open

Shu‐Chuan Chu, Libin Fu, Jeng‐Shyang Pan, Xingsi Xue, Min Liu · 2025

Metabolic pathway modulation by olanzapine: Multitarget approach for treating violent aggression in patients with schizophrenia Open

Yanning Song, Shuang Xia, Zhihong Sun, Yongchao Chen, Jiao Lu , et al. · 2024

BACKGROUND The use of network pharmacology and blood metabolomics to study the pathogenesis of violent aggression in patients with schizophrenia and the related drug mechanisms of action provides new directions for reducing the risk of vio…

Emergent Continuous Time Crystal in Dissipative Quantum Spin System without Driving Open

Shu Yang, Zeqing Wang, Libin Fu, Jianwen Jie · 2024

Time crystals are a nonequilibrium phase of matter that extend fundamental spontaneous symmetry breaking into the temporal dimension, typically requiring external driving for their realization. Here, we explore the nonequilibrium phase dia…

Reconstructing coherent dynamics of bound states induced by strong attosecond XUV pulses Open

Lijuan Jia, Mingqing Liu, Xinqiang Wang, Long Xu, Peiguang Yan , et al. · 2024

We propose a scheme that utilizes weak-field-induced quantum beats to investigate the electronic coherences of atoms driven by a strong attosecond extreme ultraviolet (XUV) pulse. The technique involves using a strong XUV pump pulse to exc…

Parity-enhanced quantum optimal measurements Open

Haijun Xing, Libin Fu, Su Yi · 2023

In quantum metrology, measurement and estimation schemes are vital for achieving higher precision, along with initial state preparation. This article presents the compound measurement of parity and particle number, which is optimal for a b…

Spin squeezing generated by the anisotropic central spin model Open

Lei Shao, Libin Fu · 2023

Spin squeezing, as a crucial quantum resource, plays a pivotal role in quantum metrology, enabling us to achieve high-precision parameter estimation schemes. Here we investigate the spin squeezing and the quantum phase transition in an ani…

Electron Dynamics in Neutron Scattering with Hydrogen Atoms Open

Mingzhao Xing, Libin Fu · 2023

In neutron-proton (n-p) scattering experiments, gas targets have been used to measure scattering length by detecting neutrons and recoil protons. Changes in electron dynamics within the gas target have a negligible effect on dynamics of ne…

Nonlinear non-Hermitian Landau–Zener–Stückelberg–Majorana interferometry Open

Xin Wang, H. D. Liu, Libin Fu · 2023

In this work, we have studied the non-Hermitian nonlinear Landau–Zener–Stückelberg–Majorana (LZSM) interferometry in a non-Hermitian N -body interacting boson system in which the non-Hermiticity is from the nonreciprocal tunnelings between…

Nonabelian Ginzburg–Landau theory for ferroelectrics Open

You‐Quan Li, Pei Wang, Hua Zhang, Hong Zhang, Libin Fu · 2023

The Ginzburg–Landau theory, which was introduced to phenomenologically describe the destruction of superconductivity by a magnetic field at the beginning, has brought up much more knowledge beyond the original one as a mean-field theory of…

Enantioselective switch on radiations of dissipative chiral molecules Open

Chong Ye, Xiaowei Mu, Yifan Sun, Libin Fu, Xiangdong Zhang · 2022

Enantiodetection is an important and challenging task across natural science. Nowadays, some chiroptical methods of enantiodetection based on decoherence-free cyclic three-level models of chiral molecules can reach the ultimate limit of th…

Phase-matched locally chiral light for global control of chiral light-matter interaction Open

Chong Ye, Yifan Sun, Libin Fu, Xiangdong Zhang · 2022

Locally chiral light is an emerging tool for probing and controlling molecular chirality. It can generate large and freely adjustable enantioselectivities in purely electric-dipole effects, offering its major advantages over traditional ch…

Sharing tripartite nonlocality sequentially by arbitrarily many independent observers Open

XI Ya, Libin Fu · 2022

There exist bipartite entangled states whose violations of Clauser-Horne-Shimony-Holt (CHSH) Bell inequality can be observed by a single Alice and arbitrarily many sequential Bobs [Phys. Rev. Lett. 125, 090401 (2020)]. Here we consider its…

Majorana’s stellar representation for the quantum geometric tensor of symmetric states Open

Xingyu Zhang, Jiancheng Pei, Libin Fu, Xiaoguang Wang · 2022

Majorana’s stellar representation provides an intuitive picture in which quantum states in high-dimensional Hilbert space can be observed using the trajectory of Majorana stars. We consider the Majorana’s stellar representation of the quan…

Two-parameter estimation with three-mode NOON state in a symmetric triple-well potential Open

Fei Yao, Yi-Mu Du, Haijun Xing, Libin Fu · 2022

We propose a scheme to realize two-parameter estimation via Bose–Einstein condensates confined in a symmetric triple-well potential. The three-mode NOON state is prepared adiabatically as the initial state. The two parameters to be estimat…

Bhatia-Davis formula in the quantum speed limit Open

Jing Liu, Zibo Miao, Libin Fu, Xiaoguang Wang · 2021

The Bhatia-Davis theorem provides a useful upper bound for the variance in mathematics, and in quantum mechanics, the variance of a Hamiltonian is naturally connected to the quantum speed limit due to the Mandelstam-Tamm bound. Inspired by…

Effects of time on the evolution of a wave packet in the tunneling dynamics Open

Lijuan Jia, Long Xu, Peng Zhang, Libin Fu · 2021

We investigate the time-dependent electron wave packet in a one-dimensional geometry with the potential bent by a homogeneous external field. Based on the behaviors of the wave packet over time, we observe a crossover time. After this cros…

Optimal building block of multipartite quantum battery in the driven-dissipative charging Open

Wei Chang, Tianran Yang, Hui Dong, Libin Fu, Xiaoguang Wang , et al. · 2021

To take quantum advantage of collective effects in many-body system, we design an elementary block for building a quantum battery with the optimal number of atoms in a common thermal bath, which is charged collectively by a harmonic drivin…

Quantum Phases in a Quantum Rabi Triangle Open

Yuyu Zhang, Zi-Xiang Hu, Libin Fu, Hong‐Gang Luo, Han Pu , et al. · 2021

The interplay of interactions, symmetries, and gauge fields usually leads to intriguing quantum many-body phases. To explore the nature of emerging phases, we study a quantum Rabi triangle system as an elementary building block for synthes…

Two-parameter estimation with three-mode NOON state in a symmetric three-well Open

Fei Yao, Yi-Mu Du, Haijun Xing, Libin Fu · 2021

We propose a theoretical scheme to realize two-parameter estimation via a Bose-Einstein condensates confined in a symmetric triple-well. The three-mode NOON state is prepared adiabatically as the initial state. Two phase differences betwee…

Measure of quantum Fisher information flow in multi-parameter scenario Open

Haijun Xing, Libin Fu · 2021

We generalize the quantum Fisher information flow proposed by Lu \textit{et al}. [Phys. Rev. A \textbf{82}, 042103 (2010)] to the multi-parameter scenario from the information geometry perspective. A measure named the \textit{intrinsic den…

Nuclear fission in intense laser fields Open

Jintao Qi, Libin Fu, Xu Wang · 2020

Rapid-advancing intense laser technologies enable the possibility of a direct laser-nucleus coupling. In this paper the effect of intense laser fields on a series of nuclear fission processes, including proton decay, alpha decay, and clust…

Measure of the density of quantum states in information geometry and quantum multiparameter estimation Open

Haijun Xing, Libin Fu · 2020

Recently, there is a growing interest in study quantum mechanics from the information geometry perspective, where a quantum state is depicted with a point in the projective Hilbert space. By taking quantum Fisher information (QFI) as the m…

Spectral caustics of high order harmonic in solids Open

Jia-Xiang Chen, Qinzhi Xia, Libin Fu · 2020

We theoretically investigate the spectral caustics of high-order harmonics in solids. We analyze the 1-dimension model of solids HHG and find that, apart from the caustics originated from the van Hove singularities in the energy-band struc…

Floquet control of global symmetry in quadrimer waveguide arrays Open

Bo Zhu, Honghua Zhong, Jun Jia, Fuqiu Ye, Libin Fu · 2020

Manipulating the global $PT$ symmetry of a non-Hermitian composite system is a rather significative and challenging task. Here, we investigate Floquet control of global $PT$ symmetry in 2D arrays of quadrimer waveguides with transverse per…

Optimal building block of multipartite quantum battery Open

Tianran Yang, Yuyu Zhang, Hui Dong, Libin Fu, Xiaoguang Wang · 2020

To take quantum advantage of collective effects in many-body system, we design an elementary block for building multipartite quantum battery, which enables charging an atomic ensemble with optimal numbers in a common thermal bath. One achi…

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