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quant-ph2026
Two-site Bose-Hubbard hopping and Schrödinger cat states
Madeline Berezowski, Artur Sowa, Jonas Fransson
The Bose-Hubbard Hamiltonian can be simplified to have only two lattice sites, in which case the system being described is referred to as a dimer. Due to its structure, the hopping…
cond-mat.other2026
Phonon-mediated spin-spin interactions
J. Fransson
Indirect long range interactions between localized magnetic moments are in metals mediated by itinerant electrons. In insulators and semi-conductor, such interactions need to be sm…