Dynamics of Particle in a Box in Time Varying Potential Due to Chirped Laser Pulse

• 作者: Brijender Dahiya Vinod Prasad
• 来源期刊: 现代物理(英文)
• 学科: 数学
• 关键词: Transition PROBABILITY CHIRP Rate BOX LENGTH
• 年，卷（期）: 2010,（6）
• 页码范围: 372-378
• 页数: 7页
• 分类号: O1

摘要

We describe a computational method for simulating the time dependent quantum mechanical system inter-acting with external field. In this method the Schr?dinger equation is solved by expanding the wave function in the basis set of unperturbed Hamiltonian. The expansion yields a set of coupled first order differential equation. For expansion coefficients, the coupled channel method is applied to a particle in a box interacting with external field in the form of chirped laser pulse. The pulse shape is taken as Gaussian. We study the ef-fect of different pulse parameters i.e. chirp rate, intensity, center frequency, box length and laser duration on the dynamics of the particle. Many interesting results are obtained and explained.