Ordered products of exponential operators by similarity transformations

✍ Scribed by W. Witschel

• Publisher: John Wiley and Sons
• Year: 1981
• Tongue: English
• Weight: 370 KB
• Volume: 20
• Category: Article
• ISSN: 0020-7608
• DOI: 10.1002/qua.560200608

✦ Synopsis

Abstract

The well‐known Hausdorff similarity transformation is used to derive a number of identities for exponential operators. The method does not give new results, but is shown to be a simple alternative to Feynman disentangling, parameter differentiation–differential equation, coherent states, and Lie–algebraic‐matrix techniques.