On the Quantum Mechanical Treatment of the Bateman-Morse-Feshbach Damped Oscillator with Variable Mass  

作　　者：Akira Suzuki Hiroki Majima Akira Suzuki;Hiroki Majima(Department of Physics, Faculty of Science, Tokyo University of Science, Tokyo, Japan;Department of Physics, General Education Division, Salesian Polytechnic, Tokyo, Japan)

机构地区：[1]Department of Physics, Faculty of Science, Tokyo University of Science, Tokyo, Japan [2]Department of Physics, General Education Division, Salesian Polytechnic, Tokyo, Japan

出　　处：《Journal of Modern Physics》2016年第16期2329-2340,共12页现代物理（英文）

摘　　要：The harmonic oscillator with time-dependent (indefinite and variable) mass subject to the force proportional to velocity is studied by extending Bateman’s dual Lagrangian and Hamiltonian formalism. To study the quantum analog of such a dissipative system, the Batemann-Morse-Feshback classical Hamiltonian of the damped harmonic oscillator with varying (time-dependent) mass is canonically quantized. In order to discuss the stability of the quantum dissipative system due to the influence of varying mass and the dissipative force, we derived a formula for the vacuum state of the dissipative system with the help of quantum field theoretical framework. It is shown that the formula based on this simple model could be used to study the influence of dissipation such as the instability due to the dissipative force and/or the variable mass. It is understood that the change in the oscillator mass corresponds to a control parameter in quantum dissipative systems.The harmonic oscillator with time-dependent (indefinite and variable) mass subject to the force proportional to velocity is studied by extending Bateman’s dual Lagrangian and Hamiltonian formalism. To study the quantum analog of such a dissipative system, the Batemann-Morse-Feshback classical Hamiltonian of the damped harmonic oscillator with varying (time-dependent) mass is canonically quantized. In order to discuss the stability of the quantum dissipative system due to the influence of varying mass and the dissipative force, we derived a formula for the vacuum state of the dissipative system with the help of quantum field theoretical framework. It is shown that the formula based on this simple model could be used to study the influence of dissipation such as the instability due to the dissipative force and/or the variable mass. It is understood that the change in the oscillator mass corresponds to a control parameter in quantum dissipative systems.

关 键 词：Canonical Quantization Dissipative System Dumped Harmonic Oscillator Variable Mass Control Parameter 

分 类 号：O17[理学—数学]