Gibbs State Uniqueness for Anharmonic Quantum Crystal with a Nonpolynomial Double-Well Potential

Alexei L. Rebenko, Valentin A. Zagrebnov

We construct the Gibbs state for $\nu$-dimensional quantum crystal with site displacements from ${\mathbb{R}}^d$, $d\ge 1$, and with a one-site \textit{non-polynomial} double-well potential,…