Zobrazeno 1 - 10
of 15
pro vyhledávání: '"T. E. Judd"'
Publikováno v:
New Journal of Physics, Vol 15, Iss 7, p 073009 (2013)
We investigate theoretically how cold atoms, including Bose–Einstein condensates, are scattered from, or absorbed by, nanotubes with a view to analysing recent experiments. In particular, we consider the role of potential strength, quantum reflecti
Externí odkaz:
https://doaj.org/article/4d6f2909e97d4eecbdfa05c86c5d87fc
Autor:
T. M. Fromhold, D. P. A. Hardwick, P. B. Wilkinson, R. G. Scott, Alexander G. Balanov, Andrew Henning, T. E. Judd, Andrew M. Martin, D. Fowler
Publikováno v:
Scopus-Elsevier
We show that the reflection of quantum-mechanical waves from semiconductor surfaces creates new regimes of nonlinear dynamics, which offer sensitive control of electrons and ultra-cold atoms. For electrons in superlattices, comprising alternating lay
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6bf88115e88ec77bef2ac61093886b9b
https://doi.org/10.1143/ptps.166.169
https://doi.org/10.1143/ptps.166.169
Autor:
Jinshi Yuan, T. E. Judd, Xiaoxiang Zhou, Akira Ishii, F. Rudau, Raphael Wieland, Reinhold Kleiner, M Tsujimoto, R. G. Mints, Yan Huang, Takeshi Hatano, P. H. Wu, B. Gross, Nickolay V. Kinev, D. Y. An, Valery P. Koshelets, Edward Goldobin, Min Ji, Dieter Koelle, Huabing Wang
Publikováno v:
Physical Review B. 91
We used one-dimensional coupled sine-Gordon equations combined with heat diffusion equations to numerically investigate the thermal and electromagnetic properties of a 300 $\ensuremath{\mu}\mathrm{m}$ long intrinsic Josephson junction stack consistin
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4cf5cd22d0b024929381adce1845597f
https://doi.org/10.1103/physrevb.91.104513
https://doi.org/10.1103/physrevb.91.104513
Autor:
Stefan Kühn, T. E. Judd
We show that magnetic dipolar interactions can stabilize superfluidity in atomic gases but the dipole alignment direction required to achieve this varies, depending on whether the flow is oscillatory or continuous. If a condensate is made to oscillat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a06bdee1a27d8c05e82c874274a54ed1
Autor:
Philipp Schneeweiss, T. E. Judd, G. Visanescu, M. Gierling, Andreas Günther, Dieter P. Kern, József Fortágh
Publikováno v:
Nature nanotechnology. 7(8)
Dispersion forces are long-range interactions between polarizable objects that arise from fluctuations in the electromagnetic field between them. Dispersion forces have been observed between microscopic objects such as atoms and molecules (the van de
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8b45cd635cccdee6e15133aafe7722d7
https://pubmed.ncbi.nlm.nih.gov/22706700
https://pubmed.ncbi.nlm.nih.gov/22706700
Autor:
Andreas Günther, Dieter P. Kern, T. E. Judd, Gabriela Visanescu, Peter Federsel, Philipp Schneeweiss, József Fortágh, M. Häffner, Michael Gierling
Publikováno v:
Nature nanotechnology. 6(7)
Scanning probe microscopes are widely used to study surfaces with atomic resolution in many areas of nanoscience. Ultracold atomic gases trapped in electromagnetic potentials can be used to study electromagnetic interactions between the atoms and nea
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e3893f1046fe43173b6112113f6816e5
https://pubmed.ncbi.nlm.nih.gov/21731071
https://pubmed.ncbi.nlm.nih.gov/21731071
Publikováno v:
Atom Chips
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::facda4880d548ac94288c917e4f42a06
https://doi.org/10.1002/9783527633357.ch6
https://doi.org/10.1002/9783527633357.ch6
We quantify the effect of phase fluctuations on atom chip interferometry of Bose-Einstein condensates. At very low temperatures, we observe small phase fluctuations, created by mean-field depletion, and a resonant production of vortices when the two
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0c023e81feb43dc49011ff9694b2fe09
http://arxiv.org/abs/0901.4602
http://arxiv.org/abs/0901.4602
Autor:
Stefan Scheel, H. Hattermann, T. E. Judd, Daniel Cano, D. Kölle, Reinhold Kleiner, B. Kasch, Claus Zimmermann, József Fortágh
We report on the measurement of atomic spin coherence near the surface of a superconducting niobium wire. As compared to normal conducting metal surfaces, the atomic spin coherence is maintained for time periods beyond the Johnson noise limit. The re
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::614db12b4bc0b6b7c9fe191bdb16540b
Autor:
T. E. Judd, T. W. A. Montgomery, R. G. Scott, Peter Krüger, Andrew M. Martin, G. Sinuco, T. M. Fromhold
We show that Fresnel zone plates, fabricated in a solid surface, can sharply focus atomic Bose-Einstein condensates that quantum reflect from the surface or pass through the etched holes. The focusing process compresses the condensate by orders of ma
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::25e823b68601aafe0da1498eecddeaa0