Entropy of a Free Quantum Particle

• 作者: Jian-Ping Peng
• 来源期刊: 现代物理(英文)
• 学科: 数学
• 关键词: ENTROPY GENERATION QUANTUM THERMODYNAMIC SYSTEMS
• 年，卷（期）: 2012,（12）
• 页码范围: 1914-1917
• 页数: 4页
• 分类号: O1

摘要

The time-dependent entropy of a single free quantum particle in the non-relativistic regime is studied in detail for the process started from a fully coherent quantum state to thermodynamic equilibrium with its surroundings at a finite temperature. It is shown that the entropy at the end of the process converges to a universal constant, as a result of thermal interaction.