Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Log inSign up
Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Blog
Job Board
Q3AS

© 2026 Aqora Quantum S.A.S.

TermsPrivacyLegal Notice

Journal of Shanxi Teachers University

The Mechanics of Finite-Freedom-Degree Harmonic Oscillator System

Li Hui

Published Jan 1, 2003• 0 citations
OpenAlex

Abstract

Finite freedom degree harmonic oscillator system is studied as follows: To begin with, its equation of motion is given and its solution is obtained by solving the equation, then the Lagrange and Hamiltan equations of motion of harmonic oscillator system are derived from variational principle. Further more, after harmonic oscillator system are quantized, we can also get its motion equation stem from the Heisenbergs Equation. In addition, classical mechanics and quantum mechanics are simultaneously applied to many kinds of conditions (including n dimensional states) of harmonic oscillator systems. Finally, the equivalence of canonical equation and Heisenbergs Equation to harmonic oscillator systems are verified.

Related papers

A variational principle and the classical and quantum mechanics of the damped harmonic oscillator

Luis Herrera, Luis Alberto Nuñez, Alberto Patiño-Vanegas +1 more

A variational principle is presented, by means of which the equation of motion of the damped harmonic oscillator is found. Starting from this variational principle a systematic reformulation of the classical mechanics leads us to a Hamilton–Jacobi equation with an additional term, which is proportional to the action. The quantization of this Hamilton–Jacobi equation, following a method originally due to Schrödinger, gives the Langevin–Schrödinger equation.

American Journal of Physics•Mar 1, 1986•39 citations

The harmonic oscillator as a tutorial introduction to quantum mechanics

Martin Devaud, Thierry Hocquet

Stemming from the similar linearities of the Schrödinger equation in quantum mechanics on the one hand and of the harmonic oscillations in classical mechanics on the other hand, the idea that any N-degree-of-freedom harmonic oscillator (HON) is formally equivalent to a N-level quantum system is put forward. It is shown that the complex dynamic variables α introduced by R. J. Glauber can be regarded as the components of a state vector belonging to some N-dimension complex Hilbert space, and whose time-evolution is ruled by a Schrödinger-like equation. In case the classical HON is parametrically excited, the unitarity of the time-evolution of the associated quantum system is related to the Ehrenfest adiabaticity of the parametric excitation.

•Feb 1, 2018•0 citations

A canonical approach to the quantization of the damped harmonic oscillator

Rabin Banerjee, Pradip Mukherjee

We provide a new canonical approach for studying the quantum mechanical damped harmonic oscillator based on the doubling of degrees of freedom approach. Explicit expressions for Lagrangians of the elementary modes of the problem, characterizing both forward and backward time propagation, are given. A Hamiltonian analysis, showing the equivalence with the Lagrangian approach, is also done. Based on this Hamiltonian analysis, the quantization of the model is discussed.

arXiv:quant-ph/0108055•Journal of Physics A Mathematical and General•Jun 28, 2002•46 citations

Algebraic solution for the classical harmonic oscillator

Murilo B. Alves

The harmonic oscillator is one of the most studied systems in Physics with a myriad of applications. One of the first problems solved in a Quantum Mechanics course is calculating the energy spectrum of the simple harmonic oscillator with analytic and algebraic approaches. In the algebraic solution, creation and annihilation operators are introduced to factorize the Hamiltonian. This work presents an algebraic solution for the simple harmonic oscillator in the context of Classical Mechanics, exploring the Hamiltonian formalism. In this solution, similarities between the canonical coordinates in a convenient basis for the classical problem and the corresponding operators in Quantum Mechanics are highlighted. Moreover, the presented algebraic solution provides a straightforward procedure for the quantization of the classical harmonic oscillator, motivating and justifying some operator definitions commonly used to solve the correspondent problem in Quantum Mechanics.

arXiv:2306.13488•Revista Brasileira de Ensino de Física•Jan 1, 2023•3 citations

Embarking on the path to quantum field theory

Kunlong Wu

The harmonic oscillator represents as a unique tool in modern physics since it is not only exactly solvable but also relates many phenomena. This paper introduces the relation between Quantum Field Theory and other physical theories and discusses how harmonic oscillator behave in Quantum Mechanics and Quantum Field Theory by the quantization of Klein-Gordon Field. To this end, this paper applies energy-momentum equation given by special relativity to Schrödinger’s Equation to get the Klein-Gordon Field, and then uses canonical method to quantize the field, which is called the second quantization of the field. The comparison is made between the result quantized field, the quantum harmonic oscillator and classical harmonic oscillator. The similarity of two physical systems is demonstrate by the comparison between commutation relations of operators. The similar commutation relations then help people to interpret quantized Klein-Gordon Field as a system that contain a quantized harmonic oscillator in each space coordinate.

Theoretical and Natural Science•Dec 19, 2023•0 citations

Matrix elements and classical limits of nonlinear oscillator

LI Feng-min

For a nonlinear harmonic oscillator with potential V(x)=1/2mω2x2+λx4,the classical equation of motion can not be solved by the perturbation method.The classical solution of the nonlinear oscillator is derived from quantum matrix elements by using the Heisenberg correspondence principle,which helps us to understand the properties of the nonlinear oscillator more profoundly.

College Physics•Jan 1, 2012•0 citations
Finite freedom degree harmonic oscillator system is studied as follows: To begin with, its equation of motion is given and its solution is obtained by solving the equation, then the Lagrange and Hamiltan equations of motion of harmonic oscillator system are derived from variational principle. Further more, after harmonic oscillator system are quantized, we can also get its motion equation stem from the Heisenbergs Equation. In addition, classical mechanics and quantum mechanics are simultaneously applied to many kinds of conditions (including n dimensional states) of harmonic oscillator systems. Finally, the equivalence of canonical equation and Heisenbergs Equation to harmonic oscillator systems are verified.
Stemming from the similar linearities of the Schrödinger equation in quantum mechanics on the one hand and of the harmonic oscillations in classical mechanics on the other hand, the idea that any N-degree-of-freedom harmonic oscillator (HON) is formally equivalent to a N-level quantum system is put forward. It is shown that the complex dynamic variables α introduced by R. J. Glauber can be regarded as the components of a state vector belonging to some N-dimension complex Hilbert space, and whose time-evolution is ruled by a Schrödinger-like equation. In case the classical HON is parametrically excited, the unitarity of the time-evolution of the associated quantum system is related to the Ehrenfest adiabaticity of the parametric excitation.
The harmonic oscillator is one of the most studied systems in Physics with a myriad of applications. One of the first problems solved in a Quantum Mechanics course is calculating the energy spectrum of the simple harmonic oscillator with analytic and algebraic approaches. In the algebraic solution, creation and annihilation operators are introduced to factorize the Hamiltonian. This work presents an algebraic solution for the simple harmonic oscillator in the context of Classical Mechanics, exploring the Hamiltonian formalism. In this solution, similarities between the canonical coordinates in a convenient basis for the classical problem and the corresponding operators in Quantum Mechanics are highlighted. Moreover, the presented algebraic solution provides a straightforward procedure for the quantization of the classical harmonic oscillator, motivating and justifying some operator definitions commonly used to solve the correspondent problem in Quantum Mechanics.
The harmonic oscillator represents as a unique tool in modern physics since it is not only exactly solvable but also relates many phenomena. This paper introduces the relation between Quantum Field Theory and other physical theories and discusses how harmonic oscillator behave in Quantum Mechanics and Quantum Field Theory by the quantization of Klein-Gordon Field. To this end, this paper applies energy-momentum equation given by special relativity to Schrödinger’s Equation to get the Klein-Gordon Field, and then uses canonical method to quantize the field, which is called the second quantization of the field. The comparison is made between the result quantized field, the quantum harmonic oscillator and classical harmonic oscillator. The similarity of two physical systems is demonstrate by the comparison between commutation relations of operators. The similar commutation relations then help people to interpret quantized Klein-Gordon Field as a system that contain a quantized harmonic oscillator in each space coordinate.