Stanimir S Kondov

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Anderson localization (AL) is a ubiquitous interference phenomenon in which waves fail to propagate in a disordered medium. We observe three-dimensional AL of noninteracting ultracold matter by allowing a spin-polarized atomic Fermi gas to expand into a disordered potential. A two-component density distribution emerges consisting of an expanding mobile(More)
2.3 CAD model and photograph of external cavity diode laser design. A ther-moelectric element between the enclosure and the plate to which the ECDL components are mounted is used to adjust the temperature of the plate.. v 2.26 Evaporation sequence for producing nearly pure BEC in the hybrid opti-3.1 Sample of sequencer code, generated C code, and(More)
We report on the impact of variable-scale disorder on 3D Anderson localization of a noninteracting ultracold atomic gas. A spin-polarized gas of fermionic atoms is localized by allowing it to expand in an optical speckle potential. Using a sudden quench of the localized density distribution, we verify that the density profile is representative of the(More)
Die endovaskuläre Therapie der thorakalen Aorta („thoracic endovascular aortic repair“, TEVAR) hat sich in den letzten 15 Jahren als sichere und effektive Methode bei verschiedensten akuten und chronischen thorakalen Aortenpathologien etabliert. Ihre Limitation erfährt sie in Bereichen, in denen primär keine adäquaten Landezonen zur sicheren endovaskulären(More)
We study a two-component quasi-two-dimensional Fermi gas with imbalanced spin populations. We probe the gas at different interaction strengths and polarizations by measuring the density of each spin component in the trap and the pair momentum distribution after time of flight. For a wide range of experimental parameters, we observe in-trap phase separation(More)
Gegenwärtig gibt es keine standardisierte Möglichkeit, gleichzeitig ein Aortenklappenvitium und ein Aneurysma bzw. eine Dissektion der Aorta ascendens endovaskulär zu behandeln. Unser Ziel war es, eine neue kathetergestützte Aortenklappenprothese mit integriertem Aorta-Stentgraft zu entwickeln. Das Konzept dieses neuen kombinierten endovaskulären(More)
We observe the emergence of a disorder-induced insulating state in a strongly interacting atomic Fermi gas trapped in an optical lattice. This closed quantum system, free of a thermal reservoir, realizes the disordered Fermi-Hubbard model, which is a minimal model for strongly correlated electronic solids. We observe disorder-induced localization of a(More)
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