Solitonic eigenstates of the chaotic Bose–Hubbard Hamiltonian

Autor:	Moritz Hiller, Florian Mintert, Andreas Buchleitner, Bartłomiej Oleś, Tobias Zech, Hannah Venzl
Rok vydání:	2009
Předmět:	Condensed Matter::Quantum Gases Physics Quantum optics Optical lattice Physics and Astronomy (miscellaneous) General Engineering General Physics and Astronomy Bose–Hubbard model symbols.namesake Ultracold atom Lattice (order) Quantum mechanics symbols Soliton Hamiltonian (quantum mechanics) Quantum
Zdroj:	Applied Physics B. 98:647-652
ISSN:	1432-0649 0946-2171
DOI:	10.1007/s00340-009-3858-4
Popis:	We study the evolving energy spectrum of interacting ultra-cold atoms in an optical lattice as a function of an external parameter, the tilt of the lattice. In a regime where the quantum mechanical model, the Bose–Hubbard Hamiltonian, shows predominantly chaotic behavior, we identify regular structures in the parametric level evolution and characterize the eigenstates associated with these structures. The mechanism generating these structures is found to be different from Stark localization or energetic isolation and is induced by an interplay of driving and interaction.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::0dcd4f5488331cbe4d9903afc81afc27 https://doi.org/10.1007/s00340-009-3858-4 Zobrazit plný text záznamu Full text from SpringerLink