November 2011 - Vip-all.phys

[vip-all] IFA-nyheder, uge 47 / IFA news, week 47
by Mette Lie 21 Nov '11

21 Nov '11

*Læs følgende nyheder for uge 47: * *To grupper fra Institut for Fysik og Astronomi er nomineret til Årets Danske Forskningsresultat 2011: * <http://phys.au.dk/nyhed/artikel/to-grupper-fra-institut-for-fysik-og-astron…> * *Ny superpincet griber fat i et enkelt atom* <http://videnskab.dk/miljo-naturvidenskab/ny-superpincet-griber-fat-i-et-enk…>, Jacob Sherson, Institut for Fysik og Astronomi ved Aarhus Universitet. * *Antibrint indfanget af danskledet forskergruppe* <http://videnskab.dk/miljo-naturvidenskab/gennembrud-antibrint-indfanget-af-…>, Jeffrey Hangst, Gorm B. Andresen, Niels Madsen, Institut for Fysik og Astronomi ved Aarhus Universitet. Se mere og stem på følgende direkte link videnskab.dk <http://videnskab.dk/stem>. Afstemningen kører frem til og med *søndag 27. november*. Prisoverrækkelsen finder sted torsdag 1. december, se invitation <http://phys.au.dk/fileadmin/site_files/nyheder/invitation_aarets_forsknings…>. Atompincet i TechNewsWorld <http://science.au.dk/nyheder-og-arrangementer/nyhed/artikel/atompincet-i-te…> Jacob Friis Sherson, Institut for Fysik og Astronomi, har med sin atompincet medvirket i en artikel på det populære online tech-magasin, TechNewsWorld, der giver en populærvidenskabelig forklaring af kvantecomputerens potentiale. First Nanofabrication Workshop and Reception, 22. november 2011 <http://phys.au.dk/fileadmin/site_files/nyheder/Nanofabrication-Workshop-and…> PS! Julefrokost 16. december 2011 <http://phys.au.dk/nyhed/artikel/ps-julefrokost-3/> Julearrangement for personale ved IFA, ISA og CVS, 20. december 2011 <http://phys.au.dk/nyhed/artikel/julearrangement-for-personale-ved-ifa-isa-o…> Referat af møde i IT udvalget 08.11.2011 <http://phys.au.dk/nyhed/artikel/referat-it-udvalgsmoede-08112011/> Referat af møde i Samarbejdsudvalget, 15.11.2011 <http://phys.au.dk/nyhed/artikel/referat-su-moede-15112011/> Billeder fra IFA Skovtur 2011 <https://picasaweb.google.com/110837271056642784317/IFASkovtur2011?authkey=G…> Bemærk frist 2/12: Forsknings- og uddannelsesprojekter ved Siemensfonden <http://phys.au.dk/nyhed/artikel/bemaerk-frist-212-forsknings-og-uddannelses…> Bemærk frist 16/12: Fondsansøgninger - Workshop for den erfarne forsker, 2. februar 2012 <http://phys.au.dk/nyhed/artikel/bemaerk-frist-1612-fondsansoegninger-worksh…> Bemærk frist 16/2: ERC Advanced Grant inden for fysik og ingeniørvidenskab <http://phys.au.dk/nyhed/artikel/bemaerk-frist-162-erc-advanced-grant-inden-…> Se ansøgningsfrister <http://phys.au.dk/arrangementer-og-nyheder/opslag/> Se kalenderen for kommend <http://phys.au.dk/arrangementer-og-nyheder/>e arrangementer <http://phys.au.dk/arrangementer-og-nyheder/> *IFA Nyheder lægges løbende på hjemmesiden.* Linket hertil ligger på forsiden, nederst i menuen til højre. Login til de interne sider for medarbejdere <http://phys.au.dk/om-instituttet/generel-information/medarbejderinformation…> : bruger: intra kode: ifaintra Bidrag sendes til ifa-nyt(a)phys.au.dk <mailto:ifa-nyt@phys.au.dk> __________ *IFA News, week 47* *Two groups from Department of Physics and Astronomy have been nominated for "Årets Danske Forskningsresultat 2011": * <http://phys.au.dk/nyhed/artikel/to-grupper-fra-institut-for-fysik-og-astron…> * *Super tweezers grab hold of a single atom* <http://videnskab.dk/miljo-naturvidenskab/ny-superpincet-griber-fat-i-et-enk…>, Jacob Sherson, Department of Physics and Astronomy, Aarhus University. * *Antihydrogen trapped by Danish-led research group* <http://videnskab.dk/miljo-naturvidenskab/gennembrud-antibrint-indfanget-af-…>, Jeffrey Hangst, Gorm B. Andresen, Niels Madsen, Department of Physics and Astronomy, Aarhus University. Use this link to vote no later than *Sunday 27 November*: videnskab.dk <http://videnskab.dk/stem>. The awards ceremony is held on Thursday 1 December, see invitation <http://phys.au.dk/fileadmin/site_files/nyheder/invitation_aarets_forsknings…>. Atom tweezers in TechNewsWorld <http://science.au.dk/en/news-and-events/news-article/artikel/atompincet-i-t…> Jacob Friis Sherson, Department of Physics and Astronomy, has contributed to an article featuring his atom tweezers in the popular online tech magazine /TechNewsWorld/. The article provides a popular scientific explanation of the potential of the quantum computer. First Nanofabrication Workshop and Reception, 22 November 2011 <http://phys.au.dk/fileadmin/site_files/nyheder/Nanofabrication-Workshop-and…> PS! Christmas lunch 16 December 2011 <http://phys.au.dk/nyhed/artikel/ps-julefrokost-3/> Christmas lecture for staff at IFA, ISA, and CVS, 20 December 2011 <http://phys.au.dk/nyhed/artikel/julearrangement-for-personale-ved-ifa-isa-o…> Minutes of meeting: IT committee meeting, 8 November 2011 <http://phys.au.dk/nyhed/artikel/referat-it-udvalgsmoede-08112011/> Minutes of meeting: Works committee meeting, 15 November 2011 <http://phys.au.dk/nyhed/artikel/referat-su-moede-15112011/> IFA picnic 2011: photos <https://picasaweb.google.com/110837271056642784317/IFASkovtur2011?authkey=G…> Note the deadline 2/12: Siemensfonden: Research/master´s projects <http://phys.au.dk/nyhed/artikel/bemaerk-frist-212-forsknings-og-uddannelses…> Note the deadline 16/12: Applications - Workshop for the experienced researcher, 2 February 2012 <http://phys.au.dk/nyhed/artikel/bemaerk-frist-1612-fondsansoegninger-worksh…> Note the deadline 16/2: ERC Advanced Grant: physics and engineering <http://phys.au.dk/nyhed/artikel/bemaerk-frist-162-erc-advanced-grant-inden-…> Please find the list of calls <http://phys.au.dk/en/events-and-news/calls/> See coming events and news<http://phys.au.dk/en/events-and-news/> *Remember to check the internal news online**. * Go to News for employees at IFA <http://phys.au.dk/en/the-department/general-information/information-for-emp…>. Login to internal news online <http://phys.au.dk/om-instituttet/generel-information/medarbejderinformation…>: user: intra password: ifaintra** Medvenlig hilsen / Kind regards Mette Lie -- Mette Alstrup Lie Department of Physics and Astronomy Aarhus University Ny Munkegade 120 DK-8000 Aarhus C Denmark Office 1522-214 e-mail:lie@phys.au.dk Tel: +45 8942 3619

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[vip-all] Fondsansøgninger – Workshop for den erfarne forsker
by Ruth Laursen 18 Nov '11

18 Nov '11

Til orientering Vh Ruth > > *Fondsansøgninger – Workshop for den erfarne forsker* > > Forskningsstøtteenheden holder workshop for den erfarne forsker, der ønsker ”nye øjne” på ansøgningen. > > På workshoppen vil vi tage udgangspunkt i to af deltagernes ansøgninger. For at deltage i workshoppen skal du derfor være parat til at vise andre forskere din ansøgning og til at deltage i en konstruktiv diskussion af andres ansøgninger. Derudover kræver deltagelse i workshoppen også lidt forberedelse. På grund af workshoppens form vil deltagerantallet være begrænset. Workshoppen vil blive ledet af to fundraisere fra Forskningsstøtteenheden og vil være en blanding af øvelser og diskussion. Diskussionerne vil blive suppleret med korte oplæg. > > Kurset er målrettet forskere med ca. 3 års post doc. erfaring og/eller betydelig ansøgningserfaring. > > Kurset afholdes i Århus torsdag den 2. februar 2012 fra kl. 9.00-12.00. > > Tilmelding kan ske senest den 16. december 2011 til Sissel Rønning på sissel.roenning(a)aarhus.rm.dk <mailto:sissel.roenning@aarhus.rm.dk> eller tlf. 8949 9965 med angivelse af navn, titel, institut/afdeling og e-mailadresse. Yderligere information om forberedelse til workshoppen og om mødelokale vil derefter blive fremsendt. > > Med venlig hilsen > > Inge Andresenog Anne Birgitte Lindgren > > *Med venlig hilsen/Yours sincerely* > > *Anne Birgitte Lindgren, MA* > > Research Support Officer > > Tel. +45 8949 9962 > > Research Support Office, > Aarhus University Hospital ▪ Central Denmark Region > > Peter Sabroes Gade 12, Building 14A ▪ DK-8000 Aarhus C > > anne.lindgren(a)aarhus.rm.dk <mailto:anne.lindgren@aarhus.rm.dk> > > www.au.dk/fse <http://www.au.dk/fse> > > <http://www.rm.dk/> >

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[vip-all] AMO seminar - Carsten Klempt TODAY 15:15 in 1525-323
by Aurélien Dantan 18 Nov '11

18 Nov '11

Title: Entangled matter waves for sub-shot-noise interferometry Speaker: Carsten Klempt Leibniz Universität, Hannover Time: Friday, November 18th, 15.15 to 16.00 Place: 1525-323 Abstract: Matter wave optics with ultracold samples has reached the point where nonclassical states can be prepared and their fascinating properties can be explored. In optics, parametric down conversion is routinely used to generate light with squeezed observables as well as highly entangled photon pairs. The applications of these nonclassical states range from fundamental tests of quantum mechanics to improved interferometers and quantum computation. Therefore, it is of great interest to realize such nonclassical states with matter waves. Bose-Einstein condensates with non-zero spin can provide a mechanism analogous to parametric down conversion, thus enabling the generation of nonclassical matter waves. The process acts as a two-mode parametric amplifier and generates two clouds with opposite spin orientation consisting of the same number of atoms. At a total of ~10000 atoms, we observe a squeezing of the number difference of -7 dB below shot noise, including all noise sources. A microwave coupling between the two modes allows for an investigation of the interferometric sensitivity. We find that the created state is entangled and useful for sub-shot-noise interferometry. Jacob Sherson and Aurélien Dantan Coffee, tea and cake will be served at 15.05 ----------------------------------- Aurelien Dantan Ion Trap Group Department of Physics and Astronomy University of Aarhus Ny Munkegade, bygn. 1520 8000 Aarhus Denmark +4589423602

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[vip-all] TODAY: Climate Science Seminar
by Brigitte Henderson 15 Nov '11

15 Nov '11

Climate Science Seminar Speaker: Peter Stauning, Danish Meteorological Institute, Copenhagen, Denmark Time: Tuesday, 15 November at 14:15 Place: 1531-119 (Aud-D2) Title: Solar activity-climate relations: A different approach Abstract: The presentation of solar activity-climate relations is extended with the most recent solar activity and temperature data series. The extension of data series shows clearly that the forcing of terrestrial temperatures is dominated by sources different from solar activity after ~1985. Based on analyses of data series for the years 1850-1985 it is demonstrated that apart from a single-period sinusoidal excursion in Earth's temperatures between ~1923 and 1965 there is a strong correlation between solar activity and terrestrial temperatures delayed by 3 years, which complies with basic causality principles. The smoothing of climate parameters (e.g. solar cycle length) is critically examined. The cosmic ray-cloud climate model is found inadequate. It is suggested that the in-cycle variations and also the longer term variations in global temperatures over the examined 160 years are mainly caused by corresponding changes in the total solar irradiance level representing the energy output from the core, but further modulated by varying energy transmission properties in the active outer regions of the Sun. Christoffer Karoff

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[vip-all] Fwd: IFA-nyheder, uge 46 / IFA news, week 46
by Mette Alstrup Lie 14 Nov '11

14 Nov '11

*Læs følgende nyheder for uge 46: * N <http://science.au.dk/index.php?id=22588&newsIdHash=75def483e3b314448c7a94d6…>y viden om asymmetrisk syntese giver bedre mulighed for at styre kemiske processer <http://science.au.dk/index.php?id=22588&newsIdHash=75def483e3b314448c7a94d6…> Det er lykkedes forskergrupper ved Université Laval, Quebec, Canada og Aarhus Universitet som de første at afdække geometri og vekselvirkningsmekanisme for molekyler, der binder i særlige reaktionslommer under deres syntese på en katalytisk metaloverflade. Den nye viden giver forskerne mulighed for at styre processen bevidst og dermed opnå renere produkter, fx inden for lægemiddelindustrien. Resultaterne er netop publiceret online i det ansete videnskabelige tidsskrift Science. First Nanofabrication Workshop and Reception, 22. november 2011 <http://phys.au.dk/fileadmin/site_files/nyheder/Nanofabrication-Workshop-and…> IFA inviterer til afskedsreception for Marianne Callisen**, 30. november 2011 <http://phys.au.dk/nyhed/artikel/ifa-inviterer-til-afskedsreception-13/> Referat af møde i Samarbejdsudvalget, 26.10.2011 <http://phys.au.dk/nyhed/artikel/referat-su-moede-26102011/> Referat af møder i IFAs forretningsudvalg, 10.11.2011 <http://phys.au.dk/nyhed/artikel/referat-vip-tap-fu-10112011/> Bemærk frist 24/1: Højteknologiske projekter og platforme <http://phys.au.dk/nyhed/artikel/bemaerk-frist-241-hoejteknologiske-projekte…> Se ansøgningsfrister <http://phys.au.dk/arrangementer-og-nyheder/opslag/> Se kalenderen for kommend <http://phys.au.dk/arrangementer-og-nyheder/>e arrangementer <http://phys.au.dk/arrangementer-og-nyheder/> *IFA Nyheder lægges løbende på hjemmesiden.* Linket hertil ligger på forsiden, nederst i menuen til højre. Login til de interne sider for medarbejdere <http://phys.au.dk/om-instituttet/generel-information/medarbejderinformation…> : bruger: intra kode: ifaintra Bidrag sendes til ifa-nyt(a)phys.au.dk <mailto:ifa-nyt@phys.au.dk> __________ *IFA News, week 46* New knowledge about asymmetric synthesis provides better opportunity for controlling chemical processes <http://science.au.dk/en/news-and-events/review/?newsIdHash=75def483e3b31444…> Research groups at Université Laval, Quebec, Canada, and Aarhus University are the first to succeed in identifying the geometry and interaction mechanism of molecules that bind in special reaction pockets during their synthesis on a catalytic metal surface. This new knowledge provides researchers with an opportunity to deliberately control the process and thereby achieve cleaner products, for example in the pharmaceutical industry. The results have just been published online in the highly reputed scientific journal /Science/. First Nanofabrication Workshop and Reception, 22 November 2011 <http://phys.au.dk/fileadmin/site_files/nyheder/Nanofabrication-Workshop-and…> IFA invites everyone to farewell reception for Marianne Callisen, 30 November 2011 <http://phys.au.dk/nyhed/artikel/ifa-inviterer-til-afskedsreception-13/> Minutes of meeting: Works committee meeting, 26 October 2011 <http://phys.au.dk/nyhed/artikel/referat-su-moede-26102011/> Minutes of meeting: IFA's executive committee meetings, 10 November 2011 <http://phys.au.dk/nyhed/artikel/referat-vip-tap-fu-10112011/> Note the deadline 24 January: The Danish National Advanced Technology Foundation: Projects and Platforms <http://phys.au.dk/nyhed/artikel/bemaerk-frist-241-hoejteknologiske-projekte…> Please find the list of calls <http://phys.au.dk/en/events-and-news/calls/> See coming events and news<http://phys.au.dk/en/events-and-news/> *Remember to check the internal news online**. * Go to News for employees at IFA <http://phys.au.dk/en/the-department/general-information/information-for-emp…>. Login to internal news online <http://phys.au.dk/om-instituttet/generel-information/medarbejderinformation…>: user: intra password: ifaintra** Medvenlig hilsen / Kind regards Mette Lie -- Mette Alstrup Lie Department of Physics and Astronomy Aarhus University Ny Munkegade 120 DK-8000 Aarhus C Denmark Office 1522-214 e-mail:lie@phys.au.dk Tel: +45 8942 3619

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[vip-all] Nanofabrication workshop 22/11
by Ruth Laursen 14 Nov '11

14 Nov '11

vh ruth ******************************* Ruth Laursen Head of Department Secretariat Department of Physics and Astronomy Aarhus University Ny Munkegade 120 8000 Aarhus C Denmark e-mail: ruth(a)phys.au.dk Office: 1522-212 Mobile: 2338 2335

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[vip-all] Fra Peter Balling: Valg til Akademisk Råd
by Ruth Laursen 12 Nov '11

12 Nov '11

Kære kolleger. Til det kommende valg skal der blandt andet vælges medlemmer til Akademisk Råd. Der er ikke nogen garanti for at det nye IFA får et medlem, så det bliver vigtigt at vi stemmer. Jeg tilbyder min kandidatur og har indleveret en liste med navnet "Listen for Institut for Fysik og Astronomi". Jeg håber på jeres støtte til at sikre IFA et mandat i det nye råd. Mvh Peter Peter Balling Department of Physics and Astronomy Aarhus University ******************************************** Ruth Laursen Head of Department Secretariat Department of Physics and Astronomy Aarhus University Ny Munkegade 120 DK - 8000 Aarhus C Tel: +45 2338 2335 (mobile) Office: 1522-212

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[vip-all] QUANTOP seminar in 10 minutes
by Grete Flarup 11 Nov '11

11 Nov '11

QUANTUM OPTICS SEMINAR Title: Optical Cooling of bosonic cesium and fermionic lithium Speaker: Romain Müller, Heidelberg University, Physikalisches Institut Time: Friday, November 11 at 10:15 Room: 1525-323 Abstract: The ability to precisely control the interactions in a Bose-Fermi mixture of 133Cs and 6Li at phase-space densities close to quantum degeneracy results in the opportunity to study many different aspects of few- and many body physics in a system with the highest mass imbalance between stable alkali atoms. Concerning few body effects, the extremely large mass-difference of Li and Cs results in the smallest scaling factor of all alkali combinations for the appearance of universal Efimov states of 4.88 (in comparison to 22.7 for homo-nuclear mixtures) for 133Cs2 6Li. A precise control over the scattering length via magnetic fields (i.e. Feshbach resonances) enables the observation of a large series of these trimer states [1] [2]. Additionally, LiCs dimers are particularly promising candidates for observing dipolar effects, as it possesses the largest dipole moment of 5.5 Debye of all alkali dimers [3]. The talk presents the current developments of our experimental setup focusing on magneto-optically trapped 6Li and the optical dipole trap for 133Cs. References [1] E. Braaten and H.-W. Hammer, AnnPhys 322, 120 (2007) [2] K. Helfrich et al., PRA 81, 042715 (2010) [3] J. Deiglmayr et al., Phys. Rev. A 82, 032503 (2010) Jan Arlt

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[vip-all] AMO seminar by R. Horchani postponed to 24/11
by Aurélien Dantan 10 Nov '11

10 Nov '11

...so no seminar TODAY. ----------------------------------- Aurelien Dantan Ion Trap Group Department of Physics and Astronomy University of Aarhus Ny Munkegade, bygn. 1520 8000 Aarhus Denmark +4589423602

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[vip-all] Statistical physics seminar today at 2 pm - Natalia Golubeva
by Kate Andersen 10 Nov '11

10 Nov '11

Title: Efficiency of molecular machines with continuous phase space Speaker: Natalia Golubeva, Department of Physics and Astronomy, Aarhus Universitet Time: Thursday, 10th November, 2011, at 14:00 Place: Room 1520-731 Abstract: We consider a molecular machine described as a Brownian particle diffusing in a tilted periodic potential. We use the fact that the times for completing a cycle in the forward and the ackward direction have the same distribution, and that the ratio of the corresponding splitting probabilities can be simply expressed as a function of the applied force, to evaluate the efficiency of the machine as a function of the output power. We explicitly evaluate the efficiency at maximum power for a simple sawtooth potential. We also obtain the efficiency at maximum power for a special class of 2-D models of a Brownian machine and find that loosely coupled machines operate at a lower efficiency at maximum power than their strongly coupled counterparts. _____ Alberto Imparato

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