Imaginary-time-ordered correlation function
= Imaginary-time-ordered correlation function
An <imaginary-time-ordered correlation function> orders operators along the Euclidean thermal circle. Bosonic correlators are periodic with period $\beta$.
= Imaginary-time-ordered correlation function
An <imaginary-time-ordered correlation function> orders operators along the Euclidean thermal circle. Bosonic correlators are periodic with period $\beta$.