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Akademický článek

The Link Between Health Literacy and Three Conditions of Metabolic Syndrome: Obesity, Diabetes and Hypertension

Autor: Tajdar D, Schäfer I, Lühmann D, Fertmann R, Steinberg T, van den Bussche H, Scherer M

Publikováno v: Diabetes, Metabolic Syndrome and Obesity, Vol Volume 15, Pp 1639-1650 (2022)

Daniel Tajdar,1 Ingmar Schäfer,1 Dagmar Lühmann,1 Regina Fertmann,2 Tim Steinberg,1 Hendrik van den Bussche,1 Martin Scherer1 1Department of Primary Care at Hamburg University Medical Center, Hamburg, Germany; 2Hamburg Authority for Work, Health, S

Externí odkaz: https://doaj.org/article/1afdf7b95f284e759c3de212aee1b903

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Experimental reconstruction of the Berry curvature in a topological Bloch band

Autor: Fläschner, N., Rem, B. S., Tarnowski, M., Vogel, D., Lühmann, D. -S., Sengstock, K., Weitenberg, C.

Publikováno v: Science 352, 1091 (2016)

Topological properties lie at the heart of many fascinating phenomena in solid state systems such as quantum Hall systems or Chern insulators. The topology can be captured by the distribution of Berry curvature, which describes the geometry of the ei

Externí odkaz: http://arxiv.org/abs/1509.05763

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Multi-orbital and density-induced tunneling of bosons in optical lattices

Autor: Lühmann, D. -S., Jürgensen, O., Sengstock, K.

Publikováno v: New J. Phys. 14, 033021 (2012)

We show that multi-orbital and density-induced tunneling have a significant impact on the phase diagram of bosonic atoms in optical lattices. Off-site interactions lead to density-induced hopping, the so-called bond-charge interactions, which can be

Externí odkaz: http://arxiv.org/abs/1108.3013

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Multi-band spectroscopy of ultracold fermions: Observation of reduced tunneling in attractive Bose-Fermi mixtures

Autor: Heinze, J., Götze, S., Krauser, J. S., Hundt, B., Fläschner, N., Lühmann, D. -S., Becker, C., Sengstock, K.

Publikováno v: Phys. Rev. Lett. 107, 135303 (2011)

We perform a detailed experimental study of the band excitations and tunneling properties of ultracold fermions in optical lattices. Employing a novel multi-band spectroscopy for fermionic atoms we can measure the full band structure and tunneling en

Externí odkaz: http://arxiv.org/abs/1107.2322

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Momentum-Resolved Bragg Spectroscopy in Optical Lattices

Autor: Ernst, P. T., Götze, S., Krauser, J. S., Pyka, K., Lühmann, D. -S., Pfannkuche, D., Sengstock, K.

Publikováno v: Nature Physics 6, 56 - 61 (2009)

Strongly correlated many-body systems show various exciting phenomena in condensed matter physics such as high-temperature superconductivity and colossal magnetoresistance. Recently, strongly correlated phases could also be studied in ultracold quant

Externí odkaz: http://arxiv.org/abs/0908.4242

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Role of interactions in 87Rb-40K Bose-Fermi mixtures in a 3d optical lattice

Autor: Best, Th., Will, S., Schneider, U., Hackermueller, L., Luehmann, D. -S., van Oosten, D., Bloch, I.

Publikováno v: Phys.Rev.Lett.102:030408,2009

We investigate the effect of interspecies interaction on a degenerate mixture of bosonic 87Rb and fermionic 40K atoms in a three-dimensional optical lattice potential. Using a Feshbach resonance, the 87Rb-40K interaction is tuned over a wide range. T

Externí odkaz: http://arxiv.org/abs/0807.4504

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