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LOCATION:ICFO Auditorium
SUMMARY:ICFO | THORSTEN SCHUMM
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DESCRIPTION:PROFILE\nThorsten Schumm was born 1975 in Berlin. He studied Ph
 ysics and Philosophy in Berlin\, Innsbruck and Heidelberg. His PhD thesis 
 in experimental physics was carried out as a bi-national research project 
 (&bdquo\;Cotutelle de Th&egrave\;se&ldquo\;) in Paris and Heidelberg in th
 e groups of J&ouml\;rg Schmiedmayer and Alain Aspect. It finished 2006 and
  was awarded the Ruprecht-Karls prize of the University of Heidelberg. Aft
 er a short research stay in Toronto\, Thorsten Schumm became an Assistant 
 Professor at the TU Wien in 2006. Since 2011\, he is leading the Quantum M
 etrology research group as a University Professor. His research was awarde
 d the START prize in 2009 and the ERC starting grant in 2010\, in 2015-202
 0 he has coordinated the EU FET-Open research alliance &ldquo\;nuClock&rdq
 uo\; and an ongoing ERC Synergy project since 2020.\nThorsten Schumm&rsquo
 \;s research focusses on the development of novel measurement methods base
 d on principles of quantum mechanics\, in particular atomic and nuclear cl
 ocks and matter wave interferometry.\n&nbsp\;\nABSTRACT\nAmong the &gt\;30
 00 isotopes\, Thorium-229 provides the lowest-energy nuclear first excited
  state\, a so-called isomer state.\nThis isomer state at 8.4 eV is the onl
 y nuclear state accessible to laser manipulation and spectroscopy.\nIt&rsq
 uo\;s long &gt\;10 minutes lifetimes with a connected narrow transition li
 newidth\, combined with the intrinsic robustness of nuclear transitions\, 
 makes it an exciting candidate for a &ldquo\;nuclear clock&rdquo\;.\nThe t
 alk will report on recent developments in this field\, triggered by the fi
 rst laser excitation of Thorium-229 in 2023.\nWe will report on a prototyp
 e solid-state variant of a nuclear clock\, optical M&ouml\;ssbauer spectro
 scopy\, CW laser absorption spectroscopy\, and first constraints on ultral
 ight dark matter models.
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