The interband dynamics of a two-band Bose-Hubbard (BH) model is studied with strongly correlated bosons forming single-site double occupancies referred to as doublons. Our model for resonant doublon interband coupling exhibits interesting dynamical features such as quantum Zeno effect, the generation of states such as a two-band Bell-like state and an upper-band Mott-like state. The evolution of the asymptotic state is controlled here by the effective opening of one or both of the two bands, which models decay channels.
Occupation-constrained interband dynamics of a non-hermitian two-band bose-hubbard hamiltonian / Munoz-Arias, Manuel H.; Parra-Murillo, Carlos A; Madronero, Javier; Wimberger, Sandro. - In: FLUCTUATION AND NOISE LETTERS. - ISSN 0219-4775. - 16:3(2017), p. 1750023. [10.1142/S0219477517500237]
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