Fachbereich Physik

Telescopes unite in unprecedented observations of a famous black hole

Astrophysicists of the University of Tübingen have been involved in a large, worldwide collaborative effort to observe the black hole M87 and its jet system all across the electromagnetic spectrum, during the observation campaign conducted with the Event Horizon Telescope that led to the first image of a black hole.

Neues Konzept für den Physik-Unterricht: Stromkreise besser verstehen

Physikdidaktiker der Goethe-Universität und der Universität Tübingen (Jun.-Prof. Dr. Jan-Philipp Burde) haben ein neues, intuitives Lehrkonzept entwickelt und in einer großen Vergleichsstudie an Schulen getestet.

 

Spiegel aus nur einer Atomlage

Beteiligung von Prof. Ch. Groß (Physikalisches Institut)

Versatile interfaces with strong and tunable light–matter interactions are essential for quantum science1 because they enable mapping of quantum properties between light and matter1. Recent studies210 have proposed a method of controlling light–matter interactions using the rich interplay of photon-mediated dipole–dipole interactions in structured subwavelength arrays of quantum emitters. However, a key aspect of this approach—the cooperative enhancement of the light–matter coupling strength and the directional mirror reflection of the incoming light using an array of quantum emitters—has not yet been experimentally demonstrated. Here we report the direct observation of the cooperative subradiant response of a two-dimensional square array of atoms in an optical lattice. We observe a spectral narrowing of the collective atomic response well below the quantum-limited decay of individual atoms into free space. Through spatially resolved spectroscopic measurements, we show that the array acts as an efficient mirror formed by a single monolayer of a few hundred atoms. By tuning the atom density in the array and changing the ordering of the particles, we are able to control the cooperative response of the array and elucidate the effect of the interplay of spatial order and dipolar interactions on the collective properties of the ensemble. Bloch oscillations of the atoms outside the array enable us to dynamically control the reflectivity of the atomic mirror. Our work demonstrates efficient optical metamaterial engineering based on structured ensembles of atoms4,8,9 and paves the way towards controlling many-body physics with light5,6,11 and light–matter interfaces at the single-quantum level.

Erster eROSITA all-sky survey abgeschlossen

Tiefer Blick in den Röntgenhimmel

eROSITA hat nach einem halben Jahr Survey-Betrieb nun seine erste vollständige Karte des Röntgenhimmels erstellt.
Die Karte wird am 24.6.2020 bei Astronomy Picture of the Day bei der NASA gezeigt

https://apod.nasa.gov/apod/ap200623.html
 

Neuer Ansatz auf dem Weg zum Quantencomputer

Übergroße Ionen machen Rechnen auf Quantenbasis zuverlässiger und schneller ‒ Tübinger Physiker an internationalem Forschungsprojekt beteiligt

Next round of Cluster Innovation Fund projects

In the 2019 call for new projects within the framework of the Cluster’s Innovation Funds, 6 new projects were now accepted for funding.

Alfried Krupp-Förderpreis für künftigen Tübinger Experimentalphysiker

Eine Million für Forschung zur Quantenphysik ‒ Dr. Christian Groß tritt im September eine Heisenberg-Professur in Tübingen an

Aktuell

22.05.2019

PhD position in High Energy Astrophysics (3 years)

A PHD position is offered in the context of observational studies of Galactic TeV-selected supernova remnants detected with H.E.S.S.

The High Energy Astrophysics group of the Institute for Astronomy and Astrophysics (IAAT) at the Eberhard Karls Universität Tübingen invites applications for a

PhD position (duration: 3 years; starting date: Sep. 1st, 2019)

in the context of observational studies of Galactic TeV-selected supernova remnants detected with H.E.S.S.

The successful candidate will work on multiwavelength data obtained on specific TeV-selected supernova remnants and their interpretation, with a focus on X-ray data obtained with XMM-Newton. The work will be conducted in the framework of the high energy astrophysics group at IAAT.

Applicants are required to have a diploma, master or equivalent university degree in physics or astronomy at the beginning of the contract.

The position is available starting September 1st, 2019, a later starting date can be negotiated. The salary is based upon the German federal public service scale (50% of E13 TV-L). The University seeks to raise the number of women in research and teaching and therefore urges qualified women to apply. Severely handicapped persons will be preferentially considered in case of equivalent qualification. The process of hiring the selected candidate is handled by the Central Administration of the University.

Please send your application before June 20th, 2019 together with a CV, copies of diploma, M.A., or related certificates, and the names and e-mail addresses of two academic references, preferably electronically in a single PDF file, to

 

Dr. Gerd Pühlhofer (puehlhoferspam prevention@astro.uni-tuebingen.de) and
Prof. Andrea Santangelo (santangelospam prevention@astro.uni-tuebingen.de)
Institut für Astronomie und Astrophysik
Sand 1
72076 Tübingen
Germany

 

Details about the scientific activities of the high energy astrophysics working group can be found at our webpage: http://www.uni-tuebingen.de/en/90013

Downloads

Zurück