This preview shows page 1. Sign up to view the full content.
Unformatted text preview: df/dx in the form df dx = ( A + B )exp( xA )exp( xB ) + [exp( xA ) ,B ]exp( xB ) and show that [exp( xA ) ,B ] = x [ A,B ]exp( xA ) leads to the ﬁrst-order diﬀerential equation df dx = ( A + B + x [ A,B ]) f ( x ) giving after integration the Baker-Campbell-Hausdorﬀ relation....
View Full Document
- Spring '11