Zobrazeno 1 - 10
of 17
pro vyhledávání: '"J E, Lye"'
Publikováno v:
Medical physics. 41(5)
The absolute dose rate of the Imaging and Medical Beamline (IMBL) on the Australian Synchrotron was measured with a graphite calorimeter. The calorimetry results were compared to measurements from the existing free-air chamber, to provide a robust de
Autor:
J E, Lye, D J, Butler, R D, Franich, P D, Harty, C P, Oliver, G, Ramanathan, D V, Webb, T, Wright
Publikováno v:
Radiation protection dosimetry. 155(1)
The ARPANSA calibration service for (60)Co gamma rays is based on a primary standard graphite calorimeter that measures absorbed dose to graphite. Measurements with the calorimeter are converted to the absorbed dose to water using the calculation of
Publikováno v:
Medical physics. 37(8)
To investigate and quantify electron contamination from the lead cutouts used in kilovoltage x-ray radiotherapy.The lead cutouts were modeled with the Monte Carlo EGSnrc user codes DOSXYZnrc and DOSRZnrc for x-ray beams ranging from 50 to 300 kVp. Th
Publikováno v:
Physical Review Letters. 98
We use a bichromatic optical lattice to experimentally realize a disordered system of ultracold strongly interacting $^{87}\mathrm{Rb}$ bosons. In the absence of disorder, the atoms are pinned by repulsive interactions in the sites of an ideal optica
Effect of interactions on the localization of a Bose-Einstein condensate in a quasi-periodic lattice
Autor:
Diederik S. Wiersma, Leonardo Fallani, Massimo Inguscio, V. Guarrera, Michele Modugno, Chiara Fort, J. E. Lye
Publikováno v:
Physical review. A 75 (2007).
info:cnr-pdr/source/autori:Lye, JE; Fallani, L; Fort, C; Guarrera, V; Modugno, M; Wiersma, DS; Inguscio, M/titolo:Effect of interactions on the localization of a Bose-Einstein condensate in a quasiperiodic lattice/doi:/rivista:Physical review. A/anno:2007/pagina_da:/pagina_a:/intervallo_pagine:/volume:75
info:cnr-pdr/source/autori:Lye, JE; Fallani, L; Fort, C; Guarrera, V; Modugno, M; Wiersma, DS; Inguscio, M/titolo:Effect of interactions on the localization of a Bose-Einstein condensate in a quasiperiodic lattice/doi:/rivista:Physical review. A/anno:2007/pagina_da:/pagina_a:/intervallo_pagine:/volume:75
The transport properties of a Bose-Einstein condensate in a 1D incommensurate bichromatic lattice are investigated both theoretically and experimentally. We observe a blockage of the center of mass motion with low atom number, and a return of motion
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::95eedf73c4cfb3df67aeb5bda09324bd
http://arxiv.org/abs/cond-mat/0611146
http://arxiv.org/abs/cond-mat/0611146
Publikováno v:
AIP Conference Proceedings.
In recent years ultracold atoms in optical lattices have been extensively employed as quantum simulators to study the physics of conventional solid state systems. Due to the possibility of introducing controlled disorder, it appears now a straightfor
In this Letter we report the investigation of transport and static properties of a Bose-Einstein condensate in a large-spaced optical lattice. The lattice spacing can be easily tuned starting from few micrometers by adjusting the relative angle of tw
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ed271daf35608d29aac8c412bc7612f0
http://arxiv.org/abs/cond-mat/0505029
http://arxiv.org/abs/cond-mat/0505029
Autor:
Robert Saers, Leonardo Fallani, Massimo Inguscio, Chiara Fort, Michele Modugno, J. E. Lye, L. De Sarlo
We report on the experimental characterization of energetic and dynamical instability, two mechanisms responsible for the breakdown of Bloch waves in a Bose-Einstein condensate interacting with a one-dimensional (1D) optical lattice. A clear separati
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::856e8b3b9a46850efc6ce07b0da65f14
http://arxiv.org/abs/cond-mat/0412279
http://arxiv.org/abs/cond-mat/0412279
Autor:
Michele Modugno, Massimo Inguscio, Diederik S. Wiersma, Leonardo Fallani, Chiara Fort, J. E. Lye
An optical speckle potential is used to investigate the static and dynamic properties of a Bose-Einstein condensate in the presence of disorder. For strong disorder the condensate is localized in the deep wells of the potential. With smaller levels o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2c68e3ca4bb92340669edc0d1120eb51
http://arxiv.org/abs/cond-mat/0412167
http://arxiv.org/abs/cond-mat/0412167
Autor:
Michele Modugno, Chiara Fort, Massimo Inguscio, J. E. Lye, Robert Saers, L. De Sarlo, Leonardo Fallani
We have experimentally studied the unstable dynamics of a harmonically trapped Bose-Einstein condensate loaded into a 1D moving optical lattice. The lifetime of the condensate in such a potential exhibits a dramatic dependence on the quasimomentum st
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1adaae55fc3930cc74b58ec7c137085f