Journal
PHYSICAL REVIEW A
Volume 86, Issue 1, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevA.86.013602
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Funding
- Polish National Center for Science [DEC-2011/01/N/ST2/00424]
- Jagiellonian University International Ph.D. Studies in Physics of Complex Systems [MPD/2009/6]
- European Regional Development Fund
- European Regional Development Fund in the framework of the Polish Innovation Economy Operational Program [POIG.02.01.00-12-023/08]
- POIG PL-Grid project
- ICM UW [G29-10]
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We present an extension of the time-dependent density matrix renormalization group, also known as the time evolving block decimation algorithm, allowing for the computation of dynamically important excited states of one-dimensional many-body systems. We show its practical use for analyzing the dynamical properties and excitations of the Bose-Hubbard model describing ultracold atoms loaded in an optical lattice from a Bose-Einstein condensate. This allows for a deeper understanding of nonadiabaticity in experimental realizations of insulating phases.
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