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UID:DSC-22817
DTSTART;TZID=Europe/Berlin:20260427T145000
SEQUENCE:1777268262
TRANSP:OPAQUE
DTEND;TZID=Europe/Berlin:20260427T162000
URL:https://dresden-science-calendar.org/calendar/de/detail/22817
LOCATION:TUD\,    
SUMMARY:Willke: Quantum Science with Single Atoms and Molecules on Surfaces
CLASS:PUBLIC
DESCRIPTION:Speaker: Philip Willke\nInstitute of Speaker: KIT\, Karlsruhe\n
 Topics:\nPhysik\n Location:\n  Name: TUD (REC/C213)\n  Street:   \n  City:
   \n  Phone: \n  Fax: \nDescription: <p><strong>Abstract</strong></p> <p>T
 he quantum nature of a physical system often emerges from its fundamental 
 building blocks and demands a deep understanding to leverage its benefits 
 for future quantum technologies. In this talk\, I introduce how spin syste
 ms on surfaces can act as a new platform for coherent quantum control. In 
 particular\, I show how the combination of electron spin resonance (ESR) w
 ith scanning tunneling microscopy (STM) enables the detection\, control\, 
 and manipulation of individual spin centers with atomic spatial resolution
  and extremely high energy sensitivity. Building on the first demonstratio
 ns of ESR on single atoms on surfaces [1]\, I will introduce the basic pr
 inciples of this technique and show how it allows quantum systems to be in
 vestigated one atom at a time. As examples\, I discuss high-resolution mag
 netic sensing that resolves magnetic dipole interactions as well as hyperf
 ine coupling between single electron and nuclear spins [2\,3]. Beyond sen
 sing\, these spin systems can be coherently driven and engineered as proto
 type quantum bits.</p> <p>I will highlight current research directions in 
 the field and in my group\, including the extension of coherent control fr
 om single atoms to individual molecules [4\,5] as well as spin defects on
  surfaces. Finally\, I will discuss recent developments in our group that 
 connect this platform to new experimental techniques\, such as atomic forc
 e microscopy\, and to new material systems\, including superconductors.</p
 > <p>[1] S. Baumann et al.\, Science <strong>350</strong>\, 417–420 (201
 5).<br> [2] P. Willke et al.\, Nat. Phys. <strong>15</strong>\, 1005–101
 0 (2019).<br> [3] P. Willke et al.\, Science <strong>362</strong>\, 336–
 339 (2018).<br> [4] X. Zhang et al.\, Nat. Chem. <strong>14</strong>\, 59
 –65 (2022).<br> [5] W. Huang et al.\, Nat. Commun. <strong>16</strong>\,
  5208 (2025).<br> [6] K.H. Au-Yeung\, W. Huang\, et al.\, arXiv:2602.22301
  (2026).</p> <p><strong>Z</strong><strong>oom</strong><strong>:</strong> 6
 33 2801 2201 (https://tu-dresden.zoom-x.de/j/63328012201?pwd=jFjgmPWVLgobC
 krIMab0jFS2jLXcWg.1)\, Passcode: IFMP2025-6</p>
DTSTAMP:20260503T082132Z
CREATED:20260414T053710Z
LAST-MODIFIED:20260427T053742Z
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