Andreas Mielke
@mielke@ieji.de
Main research topics: - Strong correlations, Hubbard model - Flat bands, Ferromagnetism - Continuous unitary transformations - Flow equations - Stochastic systems You can find my list of publications on my homepage or on google scholar.
ieji.de
Update of our paper is now available on arXiv!
📄 "The bosonic Hubbard model on a three-dimensional flat band lattice" (arXiv:2604.19703)
🔗 http://arxiv.org/abs/2604.19703
We present a frustration-free bosonic Hubbard model on a 3D flat band lattice, the line graph of the cubic lattice. For the first time (to our knowledge), we observe subextensive ground state entropy in a bosonic lattice model. The result is related to the number of 4-cycle decompositions of the cubic lattice, for which we derive upper and lower bounds.
Co-authored with Leon Haag-Fank.
Looking forward to your thoughts and discussions!
#Physics #Math #CondensedMatter #OpenScience #arXiv