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math-ph2026
Ground state energy of the Bose--Hubbard model with large coordination number with a polaron-type quantum de Finetti theorem
Shahnaz Farhat, Denis Périce, Sören Petrat
We consider the ground state energy of the Bose--Hubbard model on a graph with large and homogeneous coordination number. In the limit of infinite coordination number, we prove con…
math-ph2025
Mean-Field Dynamics of the Bose-Hubbard Model in High Dimension
Shahnaz Farhat, Denis Périce, Sören Petrat
The Bose-Hubbard model effectively describes bosons on a lattice with on-site interactions and nearest-neighbour hopping, serving as a foundational framework for understanding stro…