A5022008994- Quantum Chromodynamics and Particle Interactions
- High-Energy Particle Collisions Research
- Particle physics theoretical and experimental studies
- Quantum and electron transport phenomena
- Quantum Information and Cryptography
- Spectroscopy and Quantum Chemical Studies
- Quantum Mechanics and Applications
- Quantum chaos and dynamical systems
- Cold Atom Physics and Bose-Einstein Condensates
- Quantum Computing Algorithms and Architecture
- Advanced Thermodynamics and Statistical Mechanics
- Advanced Condensed Matter Physics
- Physics of Superconductivity and Magnetism
- Semiconductor Quantum Structures and Devices
- Quantum many-body systems
- Molecular Junctions and Nanostructures
- X-ray Diffraction in Crystallography
- Crystallization and Solubility Studies
- Advancements in Semiconductor Devices and Circuit Design
- Nuclear physics research studies
- Nonlinear Waves and Solitons
- Magnetic Properties and Applications
- Advanced machining processes and optimization
- Topological Materials and Phenomena
- Quantum optics and atomic interactions
Peking University
2025
Peking University Cancer Hospital
2025
Chinese Academy of Medical Sciences & Peking Union Medical College
2025
Peking University Shenzhen Hospital
2025
University of Hong Kong - Shenzhen Hospital
2025
Shanxi Medical University
2025
Wenzhou Medical University
2022-2024
Hainan University
2021-2024
National Yang Ming Chiao Tung University
2023-2024
Changchun University of Chinese Medicine
2024
In this review, a general algorithm for constructing coherent states of dynamical groups given quantum physical system is presented. The result that, group, the are isomorphic to coset space group geometrical space. Thus topological and algebraic structure as well associated can be extensively discussed. addition, quantum-mechanical phase-space representation constructed via coherent-state theory. Several useful methods employing study phenomena quantum-dynamic systems, such path integral,...
Q-Chem 2.0 is a new release of an electronic structure program package, capable performing first principles calculations on the ground and excited states molecules using both density functional theory wave function-based methods. A review technical features contained within presented. This article contains brief descriptive discussions key physical all algorithms theoretical models, together with sample that illustrate their performance. © 2000 John Wiley & Sons, Inc. J Comput Chem 21: 1532–1548,
A theory for four-wave-mixing signals from molecular aggregates, which includes effects of two-exciton states, static disorder, and coupling to a phonon bath with an arbitrary spectral density, is developed. The third-order polarization rigorously partitioned into coherent sequential contribution. latter given by sum exciton-hopping ground state (bleaching) terms, both expressed using the doorway-window representation. Applications are made photon-echo pump-probe spectroscopies B850 system...
Chronic hypoxic pulmonary hypertension is associated with profound vascular remodeling and alterations in Ca 2+ homeostasis arterial smooth muscle cells (PASMCs). Recent studies show that transient receptor potential (TRPC) genes, which encode store-operated receptor-operated cation channels, play important roles regulation cell proliferation. However, the influence of chronic hypoxia on TRPC channels has not been determined. Here we compared expression, store- entries PASMCs normoxic rats....
We present a general theory of non-Markovian dynamics for open systems noninteracting fermions (bosons) linearly coupled to thermal environments (bosons). explore the by connecting exact master equations with nonequilibirum Green's functions. Environmental backactions are fully taken into account. The consists nonexponential decays and dissipationless oscillations. Nonexponential induced discontinuity in imaginary part self-energy corrections. Dissipationless oscillations arise from band...
Molecular doping is often used in organic semiconductors to tune their (opto)electronic properties. Despite its versatility, however, application photovoltaics (OPVs) remains limited and restricted p-type dopants. In an effort control the charge transport within bulk-heterojunction (BHJ) of OPVs, n-type dopant benzyl viologen (BV) incorporated a BHJ composed donor polymer PM6 small-molecule acceptor IT-4F. The power conversion efficiency (PCE) cells found increase from 13.2% 14.4% upon...
We report on a precision measurement of the neutron spin structure function ${g}_{1}^{n}$ using deep inelastic scattering polarized electrons by ${}^{3}\mathrm{He}$. For kinematic range $0.014<x<0.7$ and $1<{Q}^{2}<17(\mathrm{GeV}/c{)}^{2}$, we obtain $\ensuremath{\int}{0.014}^{0.7}{g}_{1}^{n}(x)dx\phantom{\rule{0ex}{0ex}}=\phantom{\rule{0ex}{0ex}}\ensuremath{-}0.036\ifmmode\pm\else\textpm\fi{}0.004(\mathrm{stat})\ifmmode\pm\else\textpm\fi{}0.005(\mathrm{syst})$ at an average...
In this work the determination of low-energy bound states in Quantum Chromodynamics is recast so that it linked to a weak-coupling problem. This allows one approach solution with same techniques which solve Electrodynamics: namely, combination diagrams and many-body quantum mechanics. The key eliminating necessarily nonperturbative effects use bare Hamiltonian quarks gluons have nonzero constituent masses rather than zero current picture. cuts off growth running coupling constant makes...
In this paper, we develop a non-perturbation theory for describing decoherence dynamics of electron charges in double quantum dot gated by electrodes. We extend the Feynman-Vernon influence functional to fermionic environments and derive an exact master equation reduced density matrix electrons general spectral at arbitrary temperature bias. then investigate charge qubit with back-action reservoirs being fully taken into account. Time-dependent fluctuations leakage effects induced from...
The acquired enamel pellicle is a thin protein film forming upon exposure of tooth surfaces to saliva. structural analysis this integument relies on efficient harvesting and identification procedures. Material from three individual subjects two pooled samples yielded the by LC−ESI−MS/MS 130 proteins which 89 were found in or more experiments. A high intersubject consistency composition was observed. Keywords: • proteomics oral mass spectrometry linear ion trap saliva
Abstract We investigate a hybrid electro-optomechanical system that allows us to realize controllable strong Kerr nonlinearities even in the weak-coupling regime. show when electromechanical subsystem is close its quantum critical point, photon-photon interactions can be generated by adjusting intensity (or frequency) of microwave driving field. Nonlinear optical phenomena, such as appearance photon blockade and generation nonclassical states (e.g., Schrödinger cat states), are demonstrated...
We investigate the entanglement dynamics of continuous-variable quantum channels in terms an entangled squeezed state two cavity fields a general non-Markovian environment. Using Feynman-Vernon influence functional theory coherent-state representation, we derive exact master equation with time-dependent coefficients reflecting The environments different spectral densities, e.g., Ohmic, sub-Ohmic, and super-Ohmic, is numerically studied. process shows its remarkable on due to sensitive time...
As scientific instruments and computer simulations produce more data, the task of locating essential information to gain insight becomes increasingly difficult. FastBit is an efficient software tool address this challenge. In article, we present a summary key underlying technologies, namely bitmap compression, encoding, binning. Together these techniques enable answer structured (SQL) queries orders magnitude faster than popular database systems. To illustrate how used in applications, three...
Four two-dimensional (2D) four-wave-mixing techniques that can be used to extract information about structure and coupling patterns of interacting chromophores are proposed. These have close conceptual similarities with multiple-pulse NMR spectroscopies. Closed expressions for the signals derived by solving nonlinear exciton equations (NEE) which describe dynamics multiple excitations using one-exciton Green function exciton–exciton scattering matrix. Possible applications include electronic...
In this paper, we present a non-equilibrium quantum theory for transient electron dynamics in nanodevices based on the Feynman–Vernon influence functional. Applying exact master equation recently developed to more general case which all constituents of device vary time response time-dependent external voltages, obtained non-perturbatively transport terms reduced density matrix. The enables us study nanostructures with back-reaction effects from contacts, non-Markovian dissipation and...
In this paper, the exact non-Markovian dynamics of open quantum systems in presence initial system-reservoir correlations is investigated for a photonic cavity system coupled to general reservoir. The time-convolutionless master equation incorporating with obtained. reservoir and effects are embedded into time-dependent coefficients equation. We show that induced by play an important role but they washed out steady-state limit Markovian regime. Moreover, two-photon correlation between can...
In this paper, we present a coherent feedback control scheme for non-Markovian bosonic systems, in which an engineered quantum field is introduced to couple both the system and noise bath. The closed-loop dynamics of described by exact Langevin equation, where spectral density functions field, as well their coupling, are combined into single memory kernel function. We show that coupling between with bath can be used modulate As result, driven out resonance decoherence efficiently suppressed....
The foundations of statistical mechanics, namely how equilibrium hypothesis emerges microscopically from quantum theory, is explored through investigating the environment-induced decoherence processes. Based on recent results non-Markovian dynamics [Phys. Rev. Lett. 109, 170402 (2012)], we find that states manifests unexpected complexities. Indeed, an arbitrary given initial state, under influence different reservoirs, can evolve into four steady states: thermal, thermal-like, memory and...
A unified description of nonlinear optical spectroscopies molecular aggregates (starting with the Frenkel-Heitler-London Hamiltonian) and semiconductors two-band model) is developed using exciton equations (NEE). The follow explicitly complete set one-, two-, three-point dynamical variables relevant for third-order response. Effects nuclear motions are incorporated through relaxation superoperators calculated perturbatively in exciton-phonon coupling. Green's function expression response...
The exact non-Markovian dynamics of a microcavity strongly coupled to general reservoir at arbitrary temperature is studied. With the master equation for reduced density operator cavity system, we analytically solve time evolution state and associated physical observables. We show that completely determined by propagating (retarded) correlation Green functions. Compare behavior finite with those zero-temperature limit or Born-Markov limit, find memory effect can dramatically change coherent...