Entropy of the Hubbard model near the N\'eel transition

Recent dramatic advances in experiments with ultracold lattice fermions, substantiated in particular by observations of Mott physics, promise a forthcoming realization of long-range anitiferromagnetism. The key question is how much more progress in cooling will be necessary for these systems to enter the N\'eel phase. To provide the basis for accurate thermometry and detection of the N\'eel state, we calculate the entropy of the Hubbard model near the N\'eel transition. The results are obtained using determinant diagrammatic Monte Carlo and high-temperature series expansion methods.