Zobrazeno 1 - 10
of 210
pro vyhledávání: '"S. T. Dawkins"'
Publikováno v:
New Journal of Physics, Vol 20, Iss 10, p 105001 (2018)
We propose speeding up a single ion heat pump based on a tapered ion trap. If a trapped ion is excited in an oscillatory motion axially the radial degrees of freedom are cyclically expanded and compressed such that heat can be pumped between two rese
Externí odkaz:
https://doaj.org/article/c0208d0b1c5f46d0aa863fd835b19cb4
Publikováno v:
Journal of Animal Science. 92:4775-4778
The melting point (TM) of fat is relevant to health, but available methods of determining TM are cumbersome. One of the standard methods of measuring TM for animal and vegetable fats is the slip point, also known as the open capillary method. This me
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::48963207cdf82f9a374cf4c659d6c7ca
https://doi.org/10.2527/jas.2014-7981
https://doi.org/10.2527/jas.2014-7981
Autor:
Philipp Schneeweiss, S. T. Dawkins, E. Vetsch, Rudolf Mitsch, Daniel Reitz, Arno Rauschenbeutel
Publikováno v:
Applied Physics B. 110:279-283
We demonstrate optical transport of cold cesium atoms over millimeter-scale distances along an optical nanofiber. The atoms are trapped in a one-dimensional optical lattice formed by a two-color evanescent field surrounding the nanofiber, far red- an
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0b95d4ad71de1f1f791213b915dc3db3
https://doi.org/10.1007/s00340-012-5268-2
https://doi.org/10.1007/s00340-012-5268-2
Autor:
Ferdinand Schmidt-Kaler, J. Roßnagel, Obinna Abah, Karl Nicolas Tolazzi, Kilian Singer, S. T. Dawkins, Eric Lutz
Publikováno v:
Roßnagel, J, Dawkins, S T, Tolazzi, K N, Abah, O, Lutz, E, Schmidt-Kaler, F & Singer, K 2016, ' A single-atom heat engine ', Science, vol. 352, no. 6283, pp. 325 . https://doi.org/10.1126/science.aad6320, https://doi.org/10.1126/science.aad6320
Making a teeny tiny engine Steam locomotives, cars, and the drinking bird toy all convert heat into useful work as it cycles between two reservoirs at different temperatures. Usually, the working substance where the heat-work conversion occurs is a l
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c68ed2608ec8dea1ecf65727d4d69644
https://pure.qub.ac.uk/en/publications/a-singleatom-heat-engine(2acac2ca-62c1-455e-85ca-f4e613db19de).html
https://pure.qub.ac.uk/en/publications/a-singleatom-heat-engine(2acac2ca-62c1-455e-85ca-f4e613db19de).html
Autor:
Karin Groot-Berning, S. Ulm, S. T. Dawkins, Sebastian Wolf, Ferdinand Schmidt-Kaler, Kilian Singer, Luc Couturier, Georg Jacob, Ulrich Poschinger
Publikováno v:
Physical review letters. 117(4)
We realize a single particle microscope by using deterministically extracted laser-cooled ^{40}Ca^{+} ions from a Paul trap as probe particles for transmission imaging. We demonstrate focusing of the ions to a spot size of 5.8±1.0 nm and a minimum t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1dacda226f0e79089a890d2b9e72454d
https://pubmed.ncbi.nlm.nih.gov/27494469
https://pubmed.ncbi.nlm.nih.gov/27494469
Autor:
R. Chicireanu, S. T. Dawkins, Jacques Millo, Sébastien Bize, C. Mandache, Michael Petersen, Y. Le Coq, Daniel Varela Magalhães
Publikováno v:
Applied Physics B-Laser and Optics
Applied Physics B-Laser and Optics, 2010, 99, pp.41-46. ⟨10.1007/s00340-009-3830-3⟩
Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual)
Universidade de São Paulo (USP)
instacron:USP
Applied Physics B-Laser and Optics, 2010, 99, pp.41-46. ⟨10.1007/s00340-009-3830-3⟩
Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual)
Universidade de São Paulo (USP)
instacron:USP
We have developed an ultra-stable source in the deep ultraviolet, suitable to fulfill the interrogation requirements of a future fully-operational lattice clock based on neutral mercury. At the core of the system is a Fabry-P\'erot cavity which is hi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7dd3a1a8ecb11cec66f2ab4f5f914027
https://doi.org/10.1007/s00340-009-3830-3
https://doi.org/10.1007/s00340-009-3830-3
Autor:
S. T. Dawkins, C. Degünther, Ulrich Poschinger, Ferdinand Schmidt-Kaler, S. Ulm, Ramil Nigmatullin, Martin B. Plenio, Kilian Singer, J. Roßnagel, Georg Jacob, Alex Retzker
Traversal of a symmetry-breaking phase transition at finite rates can lead to causally separated regions with incompatible symmetries and the formation of defects at their boundaries, which has a crucial role in quantum and statistical mechanics, cos
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::615407ae1a570776477394479952ca87
http://arxiv.org/abs/1302.5343
http://arxiv.org/abs/1302.5343
Autor:
Kilian Singer, M. Hettrich, Ferdinand Schmidt-Kaler, S. T. Dawkins, T. Ruster, Ulrich Poschinger, F. Ziesel, K. Ott, Andreas Walther
Publikováno v:
Physical Review Letters. 109
We realize fast transport of ions in a segmented micro-structured Paul trap. The ion is shuttled over a distance of more than 10^4 times its groundstate wavefunction size during only 5 motional cycles of the trap (280 micro meter in 3.6 micro seconds
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fc52b3b6015ded13d3188a8aefd2f202
https://doi.org/10.1103/physrevlett.109.080501
https://doi.org/10.1103/physrevlett.109.080501
We present experimental techniques and results related to the optimization and characterization of our nanofiber-based atom trap [Vetsch et al., Phys. Rev. Lett. 104, 203603 (2010)]. The atoms are confined in an optical lattice which is created using
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::620bf95dbb80aca2b51e5a5883123b2f
http://arxiv.org/abs/1202.1494
http://arxiv.org/abs/1202.1494
Publikováno v:
Physical review letters. 107(24)
We dispersively interface an ensemble of one thousand atoms trapped in the evanescent field surrounding a tapered optical nanofiber. This method relies on the azimuthally-asymmetric coupling of the ensemble with the evanescent field of an off-resonan
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4f8c0a5a87c1c17db5999bdd1d06a94a
https://pubmed.ncbi.nlm.nih.gov/22242999
https://pubmed.ncbi.nlm.nih.gov/22242999