Projecten per jaar
Persoonlijk profiel
Quote
"The development of techniques to cool and trap atoms with laser light has greatly changed atomic physics research. Increasingly, applications emerge, with cold charged particle beams as a prime example."
Research profile
Edgar Vredenbregt is an associate professor with the research group Coherence and Quantum Technology at the TU/e department of Applied Physics. His research focuses on the use of atom trapping for quantum information research and to create a new class of charged particle sources, featuring ultracold electrons (10K) and ions (1mK). Both offer a new route toward high brightness by virtue of a high angular intensity. Applications of the ultracold sources are ultrafast electron diffraction and focused-ion beam instrumentation.
Ultracold ions can be extracted from a beam of laser-cooled atoms using photo-ionization, allowing for bright ion beams with a very small longitudinal energy spread (200 meV demonstrated). As a result Laser Cooled Focused Ion Beams provide a next-generation tool for observing, modifying and repairing silicon wafers, enabling milling on the 1 nanometer scale.
Rydberg atoms can fill the role of qubits with strong mutual interactions that can be harnessed to create quantum gates. A structured gas of Rydberg atoms is created by patterned laser-excitation of a trapped atomic cloud. Spectroscopy reveals effects of long-range interactions such as blockade and facilitation phenomena.
Academic background
Edgar Vredenbregt studied Applied Physics at Eindhoven University of Technology (TU/e, the Netherlands) where he received his MSc in 1986. In 1990, he obtained his PhD at TU/e in Atomic and Molecular Physics under supervision of professor Herman Beijerinck. From 1991 until 1993, he was a postdoctoral researcher at the QEX group of professor Harold Metcalf at the State University of New York at Stony Brook (USA). In 1993, he returned to TU/e to become a postdoctoral researcher in the development of intensified atomic beams. From 1995-2000, he was a fellow of the Royal Netherlands Academy of Arts and Sciences (KNAW) at TU/e, to perform research on ultra-cold collisions and intensified atomic beams. In 1998, he was a visiting research scientist with the laser cooling and trapping group at the National Institute of Standards and Technology (NIST) in Gaithersburg (USA). In 2000, Edgar Vredenbregt was appointed assistant professor at TU/e and in 2016 he was promoted to associate professor with the research group Coherence and Quantum Technology, department of Applied Physics.
Vingerafdruk
- 1 Soortgelijke profielen
Netwerk
Projecten
- 1 Actief
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KAT-1: Rydberg Atom Quantum Computing
Kokkelmans, S. J. J. M. F., Vredenbregt, E. J. D., Lous, R., Janse van Rensburg, D., Postema, J. J., van de Kraats, J., Guo, C., de Keijzer, R. J. P. T., van Herk, R. A. H., Venderbosch, M. L., Knottnerus, I. & Mohan, M.
1/07/20 → 31/12/25
Project: Onderzoek direct
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Study of Surface Damage in Silicon by Irradiation with Focused Rubidium Ions
Xu, S., Li, Y., Verheijen, M. A., Kieft, E. R. & Vredenbregt, E. J. D., 1 mrt. 2023, In: arXiv.Onderzoeksoutput: Bijdrage aan tijdschrift › Tijdschriftartikel › Academic
Bestand -
Investigation of Rb+milling rates using an ultracold focused ion beam
Xu, S., Li, Y. & Vredenbregt, E. J. D., 1 jul. 2022, In: Journal of Vacuum Science and Technology B. 40, 4, 7 blz., 042801.Onderzoeksoutput: Bijdrage aan tijdschrift › Tijdschriftartikel › Academic › peer review
Open AccessBestand1 Citaat (Scopus)14 Downloads (Pure) -
Rubidium Focused Ion Beam Induced Platinum Deposition
Li, Y., Xu, S., Sezen, M., Bakan Misirlioglu, F. & Vredenbregt, E., 1 dec. 2022, In: arXiv.Onderzoeksoutput: Bijdrage aan tijdschrift › Tijdschriftartikel › Academic
Bestand -
A rubidium focused ion beam instrument
Vredenbregt, E. J. D., Mutsaers, P. H. A., Xu, S. & Li, Y., 21 jan. 2020. 1 blz.Onderzoeksoutput: Bijdrage aan congres › Poster
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Focused ion beam using a rubidium cold-atom ion source
Xu, S., Li, Y., Mutsaers, P. H. A. & Vredenbregt, E. J. D., 31 aug. 2020. 1 blz.Onderzoeksoutput: Bijdrage aan congres › Poster
Bestand35 Downloads (Pure)
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TOWARDS A HIGH RESOLUTION RB+ FIB
E.J.D. Vredenbregt (Spreker)
19 jun. 2017 → 22 jun. 2017Activiteit: Types gesprekken of presentaties › Aangemelde presentatie › Wetenschappelijk
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workshop Postmobility Experience Sharing
Edgar Vredenbregt (Uitgenodigde spreker)
12 sep. 2016Activiteit: Types gesprekken of presentaties › Genodigd spreker › Wetenschappelijk
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iCord_International Conference on Rydberg at Durham, Durham University, Joint Quantum Centre, Durham, UK
Edgar Vredenbregt (Uitgenodigde spreker)
3 jul. 2015Activiteit: Types gesprekken of presentaties › Genodigd spreker › Wetenschappelijk
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PPG seminar, Quantum, Atomic, Molecular and Plasma Physics (QuAMP), Calman Learning Centre, Summer School, Newcastle University, Durham, UK
Edgar Vredenbregt (Uitgenodigde spreker)
16 sep. 2014Activiteit: Types gesprekken of presentaties › Genodigd spreker › Wetenschappelijk
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Coldbeams : Ultra-Cold Gas for Bright Electron and Monochromatic Ion Source Workshop, Nimes, France
Edgar Vredenbregt (Uitgenodigde spreker)
1 okt. 2012Activiteit: Types gesprekken of presentaties › Genodigd spreker › Wetenschappelijk
Cursussen
Impacts
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Ultracold ion beams
Edgar J.D. Vredenbregt (Onderzoeker) & Rianne Sanders (Content manager)
Impact: Research Topic/Theme (at group level)
Bestand
Scriptie
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Intramultiplet mixing voor Ne**(2p53p) + He-botsingen : semiklassieke beschrijving van orientatie-effecten
Auteur: Vredenbregt, E. J. D., 31 mei 1986Begeleider: Beijerinck, H. C. W. (Afstudeerdocent 1), Manders, M. P. I. (Afstudeerdocent 2) & Verhaar, B. J. (Afstudeerdocent 2)
Scriptie/Masterproef: Master
Bestand