  This short note is a review of the intriguing connection between the quantum
Gaudin model and the classical KP hierarchy recently established in [1]. We
construct the generating function of integrals of motion for the quantum Gaudin
model with twisted boundary conditions (the master T-operator) and show that it
satisfies the bilinear identity and Hirota equations for the classical KP
hierarchy. This implies that zeros of eigenvalues of the master $T$-operator in
the spectral parameter have the same dynamics as the Calogero-Moser system of
particles.
