A5103236449- Magnetic confinement fusion research
- Laser-Plasma Interactions and Diagnostics
- Ionosphere and magnetosphere dynamics
- Quantum and electron transport phenomena
- Quantum Information and Cryptography
- Quantum many-body systems
- Particle accelerators and beam dynamics
- Laser-Matter Interactions and Applications
- Magnetic Bearings and Levitation Dynamics
- Superconducting Materials and Applications
- Spectroscopy and Quantum Chemical Studies
- Fusion materials and technologies
- Cold Atom Physics and Bose-Einstein Condensates
- Fungal Plant Pathogen Control
- Nuclear Physics and Applications
- HER2/EGFR in Cancer Research
- Cytokine Signaling Pathways and Interactions
- Insect Resistance and Genetics
- Quantum Mechanics and Applications
- Electromagnetic Launch and Propulsion Technology
- Phagocytosis and Immune Regulation
- Atomic and Molecular Physics
- Quantum optics and atomic interactions
- Pulsed Power Technology Applications
- Combustion and Detonation Processes
Jiaxing University
2024-2025
Sun Yat-sen University
2024
Puyang Vocational and Technical College
2024
Institute of Applied Physics and Computational Mathematics
2017-2023
Zhejiang Sci-Tech University
2023
Shenyang Agricultural University
2021
Chinese Academy of Sciences
2013-2018
Institute of Plasma Physics
2012-2018
Research Institute of Petroleum Exploration and Development
2017
China University of Petroleum, Beijing
2017
The dynamics of two variants quantum Fisher information under decoherence are investigated from a geometrical point view. We first derive the explicit formulas these quantities for single qubit in terms Bloch vector. Moreover, we obtain analytical results them three different channels, which expressed as affine transformation matrices. Using hierarchy equation method, numerically study both dissipative model and compare numerical with ones obtained by applying rotating-wave approximation....
We extend to finite temperature the fidelity approach quantum phase transitions (QPTs). This is done by resorting notion of mixed-state that allows one compare two density matrices corresponding different thermal states. By exploiting same concept we also propose a finite-temperature generalization Loschmidt echo. Explicit analytical expressions these quantities are given for class quasifree fermionic Hamiltonians. A numerical analysis performed as well showing associated QPTs show their...
In the adiabatic perturbation theory, Berry curvature is related to generalized force, and quantum metric tensor linked with energy fluctuation. While former tested numerous numerical results experimental realizations, latter less considered. Quantum Fisher information, key precision measurement, four times tensor. It difficult relate information some physical observable. One interesting candidate square of symmetric logarithmic derivative, which usually tough obtain both theoretically...
Hypercoagulability contributes to the majority of deaths and organ failure associated with obstructive jaundice (OJ). However, exact mechanism coagulopathy in OJ remains elusive. Our objectives were demonstrate whether phosphatidylserine (PS) exposure on blood cells (BCs), microparticles (MPs), endothelial (ECs) can account for hypercoagulability liver damage patients. We evaluated patients at two time point, which before (Day 0) 7 days 7) after endoscopic retrograde cholangiopancreatography...
We analyze the quantum Fisher information (QFI) and entanglement of ground state for XY model. The QFI determines precision in parameter estimations, moreover, it is a criterion entanglement. scaling behaviors are studied both at critical point different phases. In symmetry-broken phase, scales proportional to square system size, while symmetric nearly independent size. study not only reveals distinct properties model phases, but also shows that can be used perform Heisenberg-limit estimation.
An extended Dicke model, which includes atom-atom interactions and a driving classical laser field, is established for Bose-Einstein condensate inside an ultrahigh-finesse optical cavity. A feasible experimental setup with strong atom-field coupling proposed, where most parameters are easily controllable thus the predicted second-order superradiant-normal phase transition may be detected by measuring ground-state atomic population. More intriguingly, from superradiant to ``Mott'' also...
Most matter-wave interferometry (MWI) schemes for quantum sensing are so far evaluated in ideal situations without noises. In this work, we provide assessments of generic multiqubit MWI under Markovian dephasing We find that certain classes the with scale factors nonlinearly dependent on interrogation time, optimal precision maximally entangled probes \emph{decreases} increasing particle number $N$, both independent and collective situations. This result challenges conventional wisdom found...
It is well known that electron cyclotron current drive (ECCD) around the o-point of magnetic island along plasma direction can stabilize neoclassical tearing modes (NTMs) in tokamak devices. The effects radial misalignment between and driven current, phase misalignment, on-duty ratio for modulated on NTM stabilization are studied numerically this paper. A small found to significantly decrease stabilizing effect. When a sufficiently large occurs ECCD, effect also reduced lot. optimal ECCD...
Localized electron heating produced by cyclotron resonant (ECRH) system has been proven to be powerful tools for controlling sawtooth instabilities, because such allows directly modify the local plasma parameters that determine evolution of periods. In this paper, we present experimental results carried out on advanced superconducting tokamak (EAST) with regard period control via ECRH. The EAST was capable inject wave toward certain locations inside or outside q = 1 magnetic surface poloidal...
Targeting at the radial magnetic bearings of loosely-coupled redundant supporting structure, we classify failure conditions electromagnetic coil or power amplifier, and propose reconfiguration rules for different conditions. Selection configuration methods suppor ting structure are described towards characteristics. With restriction minimum compensation current, flux strategy within one pole pair force between adjacent poles combined to compensate loss in conditions, which realizes residual...
As a hybrid approach to realizing fusion energy, Magnetized Target Fusion (MTF) based on the Field Reversed Configuration (FRC), which has plasma density and confinement time in range between magnetic inertial fusion, been recently widely pursued around world. To investigate formation of FRC injector for MTF, Yingguang-I, is an test device contains multi-bank program-discharged pulsed power sub-system, was constructed at Institute Fluid Physics (IFP), China. This paper presents components...
Compared with traditional control methods, moving mass (MMC) enhances the aerodynamic efficiency and stealth performance of fixed-wing unmanned aerial vehicles (FWUAVs), thereby facilitating their broader application in military civilian fields. Nevertheless, this approach increases system complexity, nonlinearity, coupling characteristics. To address these challenges, a novel attitude controller is proposed using adaptive global fast terminal sliding mode (GFTSM) control. Firstly, dynamic...
Numerical modelling on tearing mode stabilization by RF current due to electron cyclotron drive (ECCD) has been carried out for the purposes of disruption avoidance, focusing stabilizing magnetic island which can grow a large width and therefore, might cause plasma disruption. When become large, threshold in driven fully is found; below this threshold, only slightly decreases. The island's O-point shifts radially towards axis as grows, result, applying ECCD at minor radius stronger effect...
We use reduced fidelity to characterize quantum phase transitions in the one-dimensional spin-1/2 antiferromagnetic Heisenberg chain with frustration. For ground state and low-lying excited states, explicit results of fidelities between nearest-neighbor next-nearest-neighbor spins are given both even-size odd-size cases. find is an effective tool detecting associated level crossings for finite-size systems. Interestingly, evidently more sensitive at transition points than case. Moreover,...
A large number of simulations electron cyclotron heating and current drive (ECCD) were carried out using TORAY before the installation an wave system with a maximum 4 MW power 140 GHz frequency on experimental advanced superconducting tokamak (EAST). The findings that range allowable launch angles is about 50° poloidal 60° toroidal, when all plasma areas interest are covered, determine steering mirror under deposition rate not less than 0.98. variable integrated driven larger at radius...
A new method to stabilize the rotating neoclassical tearing mode (NTM) by using both rf current drive and static resonant magnetic perturbation (RMP) is investigated. When a non-uniform rotation induced RMP, stabilization of NTM found be enhanced if RMP phase has half period difference from that wave deposition along helical angle. The required for reduced about one third an appropriate amplitude applied.
One modeling method of incomplete constraint magnetic levitation system (ICMLS) is investigated in this paper. ANSYS-based simulation edge effect an electromagnet carried out to study on the mechanical properties electromagnetic force induced by effect, and from analysis results, conclusions can be drawn that should not ignored direction degree freedom (DOF) ICMLS, furthermore, a law ICMLS presented. By experiments conducted prototype, mathematical dynamics model developed, prototype...
Both neutral beam injection (NBI) and electron cyclotron resonance heating (ECRH) have been applied on the Experimental Advanced Superconducting Tokamak (EAST) in 2015 campaign. In order to achieve more effective current drive, effects of NBI drive with wave (ECW) are analyzed utilizing code TORAY experimental data shot #54411 #54417. According simulated results, for ECW, can improve efficiency move power deposition place towards inside plasma. On other hand, (ECCD), also ECCD inward. These...