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Wavefunctions for Particles with arbitrary Spin
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作者 HUANGShi-Zhong WUNing 《Communications in Theoretical Physics》 SCIE CAS CSCD 2002年第1期63-74,共12页
By solving rigorously the relativistic wave equations derived from Bargmann–Wigner equation for arbitrary spin, the relativistic wavefunctions in momentum representation for particles with arbitrary spin are deduced.
关键词 Bargmann-Wigner equation particles with arbitrary spin relativistic wavefunctions rigorous derivation
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WAVEFUNCTIONS OF L-S COUPLING FERMION SYSTEM(Ⅰ): SINGLE-l
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作者 羊亚平 《Acta Mathematica Scientia》 SCIE CSCD 1999年第1期1-6,共6页
In this paper. it is discussed how to constrnct wavefunctions of L-S couplingfermion system, which are classified by group chain A recurrent formula of fractional parentage coefficients with fixedseniority is also g... In this paper. it is discussed how to constrnct wavefunctions of L-S couplingfermion system, which are classified by group chain A recurrent formula of fractional parentage coefficients with fixedseniority is also given. 展开更多
关键词 WAVEFUNCTION group chain fractional parentage coefficient
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WAVEFUNCTIONS OF L-S COUPLING FERMION SYSTEM (Ⅱ):DOUBLE■-l
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作者 羊亚平 《Acta Mathematica Scientia》 SCIE CSCD 1999年第3期315-320,共6页
The wavefunctions of L-S coupling fermion system, which are classified by group chain U(4ι1 + 4ι2 + 4) Us(2)×(U L(2ι+ 2ι2 + 2) O(2ι1 + 2ι2 + 2) O(2ι+1) ×O(2ι2 + 1) O1 (3)×O2 (3) O(3)), are const... The wavefunctions of L-S coupling fermion system, which are classified by group chain U(4ι1 + 4ι2 + 4) Us(2)×(U L(2ι+ 2ι2 + 2) O(2ι1 + 2ι2 + 2) O(2ι+1) ×O(2ι2 + 1) O1 (3)×O2 (3) O(3)), are constructed through introducing generalized pairs coupled by fermions with different ι. With the help of the fractional parentage coefficients of single-ιfermion system, the author obtains the corresponding fractional parentage coefficients of double-ιfermion system. 展开更多
关键词 WAVEFUNCTION group chain fractional parentage coefficient
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Reconstructing the Potential Function in a Formulation of Quantum Mechanics Based on Orthogonal Polynomials 被引量:1
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作者 A.D.Alhaidari 《Communications in Theoretical Physics》 SCIE CAS CSCD 2017年第12期711-728,共18页
In a recent reformulation of quantum mechanics, the properties of the physical system are derived from orthogonal polynomials that make up the expansion coefficients of the wavefunction in a complete set of square int... In a recent reformulation of quantum mechanics, the properties of the physical system are derived from orthogonal polynomials that make up the expansion coefficients of the wavefunction in a complete set of square integrable basis. Here, we show how to reconstruct the potential function so that a correspondence with the standard formulation could be established. However, the correspondence places restriction on the kinematics of such problems. 展开更多
关键词 WAVEFUNCTION potential function orthogonal polynomials recursion relation tridiagonal representations ASYMPTOTICS
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Energy levels and states of parabolic cylindrical lens shaped quantum dots 被引量:1
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作者 侯春风) 姜永远 阿不都热苏力 《Chinese Physics B》 SCIE EI CAS CSCD 2005年第10期1932-1935,共4页
The parabolic cylindrical lens shaped quantum dot is investigated theoretically. The Schrǒdinger equation for an electron confined in this structure is solved in the parabolic cylindrical coordinate system. The wavef... The parabolic cylindrical lens shaped quantum dot is investigated theoretically. The Schrǒdinger equation for an electron confined in this structure is solved in the parabolic cylindrical coordinate system. The wavefunctions for the electron are presented in terms of confluent hypergeometric functions, and the electron energy spectra are also obtained. 展开更多
关键词 quantum dot artificial atom energy level WAVEFUNCTION
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Strength of Intramolecular Hydrogen Bonds 被引量:1
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作者 JIANG Xiaoyu WU Wei MO Yirong 《物理化学学报》 SCIE CAS CSCD 北大核心 2018年第3期278-285,共8页
The concept of resonance-assisted hydrogen bonds(RAHBs)highlights the synergistic interplay between theπ-resonance and hydrogen bonding interactions.This concept has been well-accepted in academia and is widely used ... The concept of resonance-assisted hydrogen bonds(RAHBs)highlights the synergistic interplay between theπ-resonance and hydrogen bonding interactions.This concept has been well-accepted in academia and is widely used in practice.However,it has been argued that the seemingly enhanced intramolecular hydrogen bonding(IMHB)in unsaturated compounds may simply be a result of the constraints imposed by theσ-skeleton framework.Thus,it is crucial to estimate the strength of IMHBs.In this work,we used two approaches to probe the resonance effect and estimate the strength of the IMHBs in the two exemplary cases of the enol forms of acetylacetone and o-hydroxyacetophenone.One approach is the block-localized wavefunction(BLW)method,which is a variant of the ab initio valence bond(VB)theory.Using this approach,it is possible to derive the geometries and energetics with resonance shut down.The other approach is Edmiston’s truncated localized molecular orbital(TLMO)technique,which monitors the energy changes by removing the delocalization tails from localized molecular orbitals.The integrated BLW and TLMO studies confirmed that the hydrogen bonding in these two molecules is indeed enhanced byπ-resonance,and that this enhancement is not a result ofσconstraints. 展开更多
关键词 Resonance-assisted hydrogen bond Bond strength Valence bond Block-localized wavefunction Truncated localized molecular orbital
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Wavefunction and energy of the 1s^2 2sns configuration in a beryllium atom 被引量:1
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作者 黄时中 马堃 +1 位作者 于加明 刘芬 《Chinese Physics B》 SCIE EI CAS CSCD 2008年第11期4175-4179,共5页
A new set of trial functions for 1s^22sns configurations in a beryllium atom is suggested. A Mathematica program based on the variational method is developed to calculate the wavefunctions and energies of 1s^22sns (n... A new set of trial functions for 1s^22sns configurations in a beryllium atom is suggested. A Mathematica program based on the variational method is developed to calculate the wavefunctions and energies of 1s^22sns (n = 3 - 6) configurations in a beryllium atom. Non-relativistic energy, polarization correction and relativistic correction which include mass correction, one- and two-body Darwin corrections, spin-spin contact interaction and orbit-orbit interaction, are calculated respectively. The results are in good agreement with experimental data. 展开更多
关键词 beryllium atom WAVEFUNCTION ENERGY
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Magneto-optical properties of self-assembled InAs quantum dots for quantum information processing 被引量:1
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作者 唐静 许秀来 《Chinese Physics B》 SCIE EI CAS CSCD 2018年第2期195-203,共9页
Semiconductor quantum dots have been intensively investigated because of their fundamental role in solid-state quan- tum information processing. The energy levels of quantum dots are quantized and can be tuned by exte... Semiconductor quantum dots have been intensively investigated because of their fundamental role in solid-state quan- tum information processing. The energy levels of quantum dots are quantized and can be tuned by external field such as optical, electric, and magnetic field. In this review, we focus on the development of magneto-optical properties of single InAs quantum dots embedded in GaAs matrix, including charge injection, relaxation, tunneling, wavefunction distribution, and coupling between different dimensional materials. Finally, the perspective of coherent manipulation of quantum state of single self-assembled quantum dots by photocurrent spectroscopy with an applied magnetic field is discussed. 展开更多
关键词 MAGNETO-PHOTOLUMINESCENCE InAs quantum dots quantum bit wavefunction control diamag-netic effects
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Modified Atomic Orbital Calculations of Energy of the(2s^(2)^(1)S)Ground-State,the(2p^(2)^(1)D);(3d^(2)^(1)G)and(4f^(2)^(1)I)Doubly Excited States of Helium Isoelectronic Sequence from H-to Ca^(18+) 被引量:1
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作者 Malick Sow Ibrahima Sakho +9 位作者 Boubacar Sow Abdou Diouf Youssou Gning Babou Diop Matabara Dieng Abdourahmane Diallo Mamadou DiouldéBa Jean KouhissoréBadiane Mamadi Biaye Ahmadou Wagué 《Journal of Applied Mathematics and Physics》 2020年第1期85-99,共15页
We report in this paper the ground-state energy 2s^(2)^(1)S and total energies of doubly excited states 2p^(2)^(1)D,3d^(2)^(1)D,4f^(2)^(1)I of the Helium isoelectronic sequence from H-to Ca^(18+).Calculations are perf... We report in this paper the ground-state energy 2s^(2)^(1)S and total energies of doubly excited states 2p^(2)^(1)D,3d^(2)^(1)D,4f^(2)^(1)I of the Helium isoelectronic sequence from H-to Ca^(18+).Calculations are performed using the Modified Atomic Orbital Theory(MAOT)in the framework of a variational procedure.The purpose of this study required a mathematical development of the Hamiltonian applied to Slater-type wave function[1]combining with Hylleraas-type wave function[2].The study leads to analytical expressions which are carried out under special MAXIMA computational program.This first proposed MAOT variational procedure,leads to accurate results in good agreement as well as with available other theoretical results than experimental data.In the present work,a new correlated wave function is presented to express analytically the total energies for the 2s21S ground state and each doubly 2p^(2)^(1)D,3d^(2)^(1)D,4f^(2)^(1)I excited states in the He-like systems.The present accurate data may be a useful guideline for future experimental and theoretical studies in the(nI^(2))systems. 展开更多
关键词 Modified Atomic Orbital Theory Variational Calculations Correlated Wavefunction ENERGIES GROUND-STATE Doubly Excited States Helium Isoelectronic Sequence Atoms and Ions
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Separation of Variable Treatment for Solving Time—Dependent Potentials
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作者 QIANShang-Wu GUZhi-Yu 《Communications in Theoretical Physics》 SCIE CAS CSCD 2001年第2期149-150,共2页
We use the separation of variable treatment to treat some time-dependent systems, and point out that the condition of separability is the same as the condition of existence of invariant, and the separation of variable... We use the separation of variable treatment to treat some time-dependent systems, and point out that the condition of separability is the same as the condition of existence of invariant, and the separation of variable treatment is interrelated with the quantum-invariant method and the propagator method. We directly use the separation of variable treatment to obtain the wavefunctions of the time-dependent Coulomb potential and the time-dependent Hulthén potential. 展开更多
关键词 time-dependent system separation of variable treatment time-dependent Coulomb potential time-dependent Hulthen potential WAVEFUNCTION
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Incoherent control of two classes of finite-level quantum systems
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作者 Chunlin Chen 1,2 and Zhenquan Qin 3,1.Department of Control and System Engineering,Nanjing University,Nanjing 210093,P.R.China 2.State Key Laboratory for Novel Software Technology,Nanjing University,Nanjing 210093,P.R.China 3.School of Software,Dalian University of Technology,Dalian 116620,P.R.China 《Journal of Systems Engineering and Electronics》 SCIE EI CSCD 2011年第4期679-683,共5页
The incoherent control of finite-level quantum systems is investigated. Following a brief introduction to coherent control paradigms in quantum control, a control problem that can not be accomplished using only cohere... The incoherent control of finite-level quantum systems is investigated. Following a brief introduction to coherent control paradigms in quantum control, a control problem that can not be accomplished using only coherent control is presented. For such a control problem, it is proved that it can be accomplished using incoherent control based on projective measurement and coherent control for two classes of finite-level quantum systems, i.e., eigenstate controllable quantum systems and wavefunction controllable quantum systems. 展开更多
关键词 quantum control eigenstate controllability wavefunction controllability coherent control incoherent control.
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The impact of vibrational wave function on low energy electron vibrational scattering from nitrogen molecule
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作者 付佳 冯灏 张燚 《Chinese Physics B》 SCIE EI CAS CSCD 2017年第8期162-167,共6页
The vibrational wave function of the target theoretically plays an important role in the calculation of vibrational excitation cross sections. By a careful study of the differential cross sections resulting from diffe... The vibrational wave function of the target theoretically plays an important role in the calculation of vibrational excitation cross sections. By a careful study of the differential cross sections resulting from different vibrational wave functions we find that cross sections are susceptible to vibrational wave functions. Minor changes in the vibration wave lhnction may cause a significant change in the cross section. Even more surprising is that by selecting a few numbers of potential models (which determine the vibrational wave functions) we can often calculate the differential scattering cross section in much closer agreement with experiment in the framework of body-frame vibrational close-coupling theory, which suggest that an accurate potential energy may play a more important role in scattering than we thought betbre. 展开更多
关键词 vibrational scattering vibrational wavefunction nitrogen molecule
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Evaluating First-Order Molecular Properties of Delocalized Ionic or Excited States in Molecular Aggregates by Renormalized Excitonic Method
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作者 Yun-hao Liu Ke Wang Hai-bo Ma 《Chinese Journal of Chemical Physics》 SCIE CAS CSCD 2021年第6期670-682,I0001,共14页
In the past few years,the renormalized excitonic model(REM)approach was developed as an efficient low-scaling ab initio excited state method,which assumes the low-lying excited states of the whole system are a linear ... In the past few years,the renormalized excitonic model(REM)approach was developed as an efficient low-scaling ab initio excited state method,which assumes the low-lying excited states of the whole system are a linear combination of various single monomer excitations and utilizes the effective Hamiltonian theory to derive their couplings.In this work,we further extend the REM calculations for the evaluations of first-order molecular properties(e.g.charge population and transition dipole moment)of delocalized ionic or excited states in molecular aggregates,through generalizing the effective Hamiltonian theory to effective operator representation.Results from the test calculations for four different kinds of one dimensional(1D)molecular aggregates(ammonia,formaldehyde,ethylene and pyrrole)indicate that our new scheme can efficiently describe not only the energies but also wavefunction properties of the low-lying delocalized electronic states in large systems. 展开更多
关键词 Renormalization group Frenkel exciton WAVEFUNCTION Excited state Mulliken charge Transition dipole moment
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Hidden Anderson localization in disorder-free Ising–Kondo lattice
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作者 Wei-Wei Yang Lan Zhang +1 位作者 Xue-Ming Guo Yin Zhong 《Chinese Physics B》 SCIE EI CAS CSCD 2020年第10期451-458,共8页
Anderson localization (AL) phenomena usually exist in systems with random potential. However, disorder-free quantum many-body systems with local conservation can also exhibit AL or even many-body localization transiti... Anderson localization (AL) phenomena usually exist in systems with random potential. However, disorder-free quantum many-body systems with local conservation can also exhibit AL or even many-body localization transition. We show that the AL phase exists in a modified Kondo lattice without external random potential. The density of state, inverse participation ratio and temperature-dependent resistance are computed by classical Monte Carlo simulation, which uncovers an AL phase from the previously studied Fermi liquid and Mott insulator regimes. The occurrence of AL roots from quenched disorder formed by conservative localized moments. Interestingly, a many-body wavefunction is found, which captures elements in all three paramagnetic phases and is used to compute their quantum entanglement. In light of these findings, we expect that the disorder-free AL phenomena can exist in generic translation-invariant quantum many-body systems. 展开更多
关键词 Anderson localization Ising-Kondo lattice many-body wavefunction quantum entanglement
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Revisiting the Twist-3 Distribution Amplitudes of K Meson Within the QCD Background Field Approach
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作者 钟涛 吴兴刚 +3 位作者 韩华勇 廖其力 付海斌 方祯云 《Communications in Theoretical Physics》 SCIE CAS CSCD 2012年第8期261-270,共10页
In the present paper, we investigate the kaon twist-3 distribution amplitudes (DAs)Cp within the QCD background field approach. The SUf (3)-breaking effects are studied in detail under a systematical way, especiaJ... In the present paper, we investigate the kaon twist-3 distribution amplitudes (DAs)Cp within the QCD background field approach. The SUf (3)-breaking effects are studied in detail under a systematical way, especiaJ1y the sum rules for the moments of are obtained by keeping all the mass terms in the s-quark propagator consistently. After adding all the uncertainties in quadrature, the first two Gegenbauler moments of are a GeV. A detailed discussion on the properties tion parameters moments shows that the higher-order s-quark mass terms can indeed provide sizable contributions. Fhrthermore, based on the newly obtained moments, a model for the kaon twist-3 wavefunction with a better end-point behavior is constructed, which shall be useful for perturbative QCD calculations. As a byproduct, we make a discussion on the properties of the pion twist-3 DAs. 展开更多
关键词 QCD sum rules Twist-3 wavefunction KAON
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Digital holographic imaging via direct quantum wavefunction reconstruction
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作者 胡孟军 张永生 《Chinese Physics B》 SCIE EI CAS CSCD 2023年第10期50-57,共8页
Wavefunction is a fundamental concept of quantum theory.Recent studies have shown surprisingly that wavefunction can be directly reconstructed via the measurement of weak value.The weak value based direct wavefunction... Wavefunction is a fundamental concept of quantum theory.Recent studies have shown surprisingly that wavefunction can be directly reconstructed via the measurement of weak value.The weak value based direct wavefunction reconstruction not only gives the operational meaning of wavefunction,but also provides the possibility of realizing holographic imaging with a totally new quantum approach.Here,we review the basic background knowledge of weak value based direct wavefunction reconstruction combined with recent experimental demonstrations.The main purpose of this work focuses on the idea of holographic imaging via direct wavefunction reconstruction.Since research on this topic is still in its early stage,we hope that this work can attract interest in the field of traditional holographic imaging.In addition,the wavefunction holographic imaging may find important applications in quantum information science. 展开更多
关键词 wavefunction reconstruction weak value hologram imaging
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One-Dimensional Scanning of Electronic Wavefunction in Carbon Nanotubes by Molecular Encapsulation
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作者 Gui Ye Jun Li +1 位作者 Ming-sen Deng Jun Jiang 《Chinese Journal of Chemical Physics》 SCIE CAS CSCD 2015年第6期-,共5页
关键词 Single-walled carbon nanotube Molecular container One-dimensional electron wavefunction distribution Density functional theory
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A New Form for the Full Salpeter Equation
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作者 Liu Jueping Chen Xiaoling Hu Ying 《Wuhan University Journal of Natural Sciences》 CAS 1998年第3期43-49,共7页
A more general form of the Bethe Salpater wavefunction for a quark antiquark bound state, in accordance with the spirit of nonrelativistic approximation, is constructed, and the relativistic Salpeter equation is red... A more general form of the Bethe Salpater wavefunction for a quark antiquark bound state, in accordance with the spirit of nonrelativistic approximation, is constructed, and the relativistic Salpeter equation is reduced to two 2×2 matrix equations under an instantaneous approximation, which includes not only the contributions comming from a positive energy state but also ones of a negative energy state, and has no anomalous solution. 展开更多
关键词 Bethe Salpeter wavefunction full Salpeter equation instantaneous approximation
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Analytical Study of Band Structure of Material Using Relativistic Concept
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作者 E. I. Ugwu M. I. Echi 《Applied Mathematics》 2013年第9期1287-1289,共3页
In this paper, we present the study of band structure relativistically. Here, Dirac equation is formulated from Hamilto-nian in which the formulation is found to contain a correction term known as spin-orbit coupling ... In this paper, we present the study of band structure relativistically. Here, Dirac equation is formulated from Hamilto-nian in which the formulation is found to contain a correction term known as spin-orbit coupling given as that modifies the non-relativistic expression for the same formulation. This term leads to double spin-degeneracy within the first Brillioun zone which is a concept that is not found in other method of study of band structure of material. 展开更多
关键词 BANDSTRUCTURE Hamiltonian Dirac Equation Spin-Orbit EIGENFUNCTION RELATIVISTIC CONCEPT Spin-Degeneracy WAVEFUNCTION Correction-Term
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On the Interpretation of the Foundations of Quantum Mechanics
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作者 Valery Egorushkin 《Journal of Physical Science and Application》 2012年第8期315-327,共13页
This study discusses the information space, the wave function phase, the Berry phase and its relationship to quantization, discriminability of states and macroscopic quantum effects caused by localization of the parti... This study discusses the information space, the wave function phase, the Berry phase and its relationship to quantization, discriminability of states and macroscopic quantum effects caused by localization of the particle, followed by a possible entropy change during its transition into a new thermodynamic state. This work addresses interference: it is the information waves which interfere; the particles follow their roadmap, and the measurement of their coordinates introduces an additional uncertainty into the momentum. It is not particles (matter) which manifest these wave properties but fluctuations of the physical space-time coordinates. Physical characteristics corresponding to the fluctuating variables, energy, momentum, etc., determine the magnitude of the respective fluctuations rather than the wave properties of matter. Matter possesses no wave properties. This work also discusses the difference between the objective information and knowledge. 展开更多
关键词 Quantum theory FLUCTUATIONS WAVEFUNCTION quantum interference corpuscular-wave dualism.
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