Search Results - "Könemann, J."

Efficient cost-sharing mechanisms for prize-collecting problems by Gupta, A., Könemann, J., Leonardi, S., Ravi, R., Schäfer, G.

“…We consider the problem of designing efficient mechanisms to share the cost of providing some service to a set of self-interested customers. In this paper, we…”
Get full text

Impurity effects in quantum dots: Toward quantitative modeling by RÄSÄNEN, E, KÖNEMANN, J, HAUG, R. J, PUSKA, M. J, NIEMINEN, R. M

Get full text

Oil-based gas washing-Flexible tar removal for high-efficient production of clean heat and power as well as sustainable fuels and chemicals by Zwart, R.W.R., Van der Drift, A., Bos, A., Visser, H.J.M., Cieplik, M.K., Könemann, H.W.J.

“…The Energy research Centre of the Netherlands (ECN) and Dahlman Industrial Group have developed a flexible tar removal process. This oil‐based gas washing…”
Get full text

On the integrality ratio for tree augmentation by Cheriyan, J., Karloff, H., Khandekar, R., Könemann, J.

“…We show that the standard linear programming relaxation for the tree augmentation problem in undirected graphs has an integrality ratio that approaches 3 2 …”
Get full text

Spin-orbit coupling and anisotropy of spin splitting in quantum dots by KÖNEMANN, J, HAUG, R. J, MAUDE, D. K, FAL'KO, V. I, ALTSHULER, B. L

“…In lateral quantum dots, the combined effect of both Dresselhaus and Bychkov-Rashba spin-orbit coupling is equivalent to an effective magnetic field +/- B(SO)…”
Get full text

Min–max tree covers of graphs by Even, G., Garg, N., Könemann, J., Ravi, R., Sinha, A.

Get full text

Shot noise in resonant tunneling through a zero-dimensional state with a complex energy spectrum by Nauen, A., Hohls, F., Könemann, J., Haug, R. J.

Get full text

Konservative Therapie der Divertikelkrankheit by Oestreich, R., Könemann, J., Leifeld, L.

“…Zusammenfassung Hintergrund Die Prävalenz der Divertikulose liegt zwischen 28 und 45 % in der Gesamtbevölkerung und bei >60 % bei den über 70-Jährigen. Eine…”
Get full text

Ground-state characterization of Nb charge-phase Josephson qubits by Zangerle, H., Könemann, J., Mackrodt, B., Dolata, R., Lotkhov, S. V., Bogoslovsky, S. A., Götz, M., Zorin, A. B.

Get full text

Magnetotransport and THz-Optical Investigations at Devices with HgTe Quantum Wells by Gouider, F., Vasilyev, Y. B., Bugár, M., Könemann, J., Brüne, C., Buhmann, H., Nachtwei, G.

“…We investigated the magnetoconductivity and the Terahertz (THz) photo-conductivity of devices with HgTe quantum wells embedded in barrier layers of HgCdTe. For…”
Get full text

Spin effects in quantum dots by Könemann, J., Winkler, R., Maude, D. K., Haug, R. J.

“…Spin‐resolved single‐electron tunneling in GaAs/AlGaAs double‐barrier resonant tunneling structures is used to investigate the spin‐splitting of fully…”
Get full text

THz detectors with HgTe and InSb quantum wells by Gouider, F, Vasilyev, Y B, Könemann, J, Brüne, C, Buhmann, H, Buckle, P D, Nachtwei, G

“…Terahertz-frequencies in semiconductor quantum wells are of interest due to the opportunity for making devices that operate at THz frequencies. In this study…”
Get full text

Quasiparticle transitions in charge-phase qubits probed by rf oscillations by Könemann, J., Zangerle, H., Mackrodt, B., Dolata, R., Zorin, A. B.

Get full text

Realization of magnetic field reversible quantum Hall arrays by Konemann, J, Ahlers, F J, Pesel, E, Pierz, K, Schumacher, H W

“…We realize and experimentally study magnetic field reversible serial quantum Hall arrays. Our devices consist of two Hall bars with rectangular or square…”
Get full text

Spin-resolved transport in single-electron tunneling by Könemann, J, König, P, Haug, R.J

“…Single-electron tunneling in a GaAs/AlGaAs vertical resonant tunneling device is used to evaluate the spin splitting of fully quantized electronic states. For…”
Get full text

Characterization of deformed quantum dots by modeling single-electron-tunneling experiments by Räsänen, E., Könemann, J., Haug, R.J., Puska, M.J., Nieminen, R.M.

“…We have analyzed a single-electron transport spectrum of a quantum dot formed in a GaAs/AlGaAs resonant tunneling device. The measured spectrum indicates a…”
Get full text

Terahertz photoconductivity of a two-dimensional electron gas in HgCdTe/HgTe quantum wells by Vasilyev, Yu. B., Gouider, F., Bugár, M., Nachtwei, G., Könemann, J., Brüne, C., Buhmann, H.

“…The terahertz (THz) photoconductivity is investigated in HgTe/HgCdTe‐quantum wells (QWs) in Corbino geometry at various wavelengths of excited radiation. The…”
Get full text

Faster and simpler algorithms for multicommodity flow and other fractional packing problems by Garg, N., Konemann, J.

“…This paper considers the problem of designing fast, approximate, combinatorial algorithms for multicommodity flows and other fractional packing problems. We…”
Get full text

Spin effects in quantum dots : Frontiers in semiconductor nanoscience by KÖNEMANN, J, WINKLER, R, MAUDE, D. K, HAUG, R. J

Get full text

Shot noise in tunneling through single localized states by Nauen, A., Könemann, J., Zeitler, U., Hohls, F., Haug, R.J.

“…We have measured the noise properties of a resonant tunneling structure in a voltage regime where single electron tunneling is observed. We find different…”
Get full text