Journal
PHYSICAL REVIEW A
Volume 89, Issue 5, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevA.89.053408
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Funding
- National Natural Science Foundation of China [61176118, 12QH1400800, IT472-10, BFI-2010-255, 13PJ1403000, FIS2012-36673-C03-01]
- UPV/EHU
- Basque Government postdoctoral program
- [UFI 11/55]
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Sped-up protocols that drive a system quickly to the same populations that can be reached by a slow adiabatic process may involve Hamiltonian terms which are difficult to realize. We use the dynamical symmetry of the Hamiltonian to find, by means of Lie transforms, alternative Hamiltonians that achieve the same goals without the problematic terms. We apply this technique to three-level systems (two interacting bosons in a double well, and beam splitters with two and three output channels) driven by Hamiltonians that belong to the four-dimensional algebra U3S3.
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