Postdoc Giacomo Bighin developed a diagrammatic Monte Carlo approach to quantum systems consisting of particles with angular momentum:
With the new ERC funding available, the Lemeshko group has several new openings for Postdoc and Ph.D. positions. Please send your application documents directly to Prof. Lemeshko.
In this round of awards, one Starting Grant of the European Research Council goes to Professor Mikhail Lemeshko, a theoretical physicist who has been working at IST Austria since 2014. In his project, which the ERC will support with about 1.5 million Euro, he will establish a general theory of a quasiparticle, the angulon, that he discovered during his time at IST Austria. The angulon quasiparticle is expected to help tackle previously unsolvable problems in various fields, ranging from physical chemistry to the technology of data storage.
During his ISTernship and lab rotation in our group, Wojciech has demonstrated that it's possible to control angular momentum transfer between a molecule and a quantum solvent using a magnetic field. Furthermore, it seems possible to create phonons with preordained angular momentum!
Enderalp has been awarded the Outstanding Scientific Achievement Award at IST Austria for the important results he published in 2017, including:
- E. Yakaboylu, A. Deuchert, M. Lemeshko
Emergence of non-abelian magnetic monopoles in a quantum impurity problem
Phys. Rev. Lett. 119, 235301 (2017)
- E. Yakaboylu, M. Lemeshko
Anomalous screening of quantum impurities by a neutral environment
Phys. Rev. Lett. 118, 085302 (2017)
- N. Camus*, E. Yakaboylu*, L. Fechner, M. Klaiber, M. Laux, Y. Mi, K. Z. Hatsagortsyan, Th. Pfeifer, Ch. H. Keitel, and R. Moshammer (* = equal contribution)
Experimental Evidence for Quantum Tunneling Time
Phys. Rev. Lett. 119, 023201 (2017)
Enderalp Yakaboylu (Lemeshko group) and Andreas Deuchert (Seiringer group) demonstrated that a molecule rotating inside a superfluid behaves as a non-Abelian magnetic monopole.
Press coverage: Gismodo, Phys.org, ScienceDaily, EurekAlert, Science Newsline, Sott.net, Resonance.is, Space Daily (in English); der Standard, Pro-Physik, Austria Presse Agentur, Informationsdienst Wissenschaft, Innovations Report, OE Journal, Jura Forum (in German); Webtechno (in Turkish), Egno (in Greek), Dailytechinfo.org (in Russian)
On August 22, Mikhail Lemeshko has been awarded the Ludwig Boltzmann Prize of the Austrian Physical Society for his pioneering work on the angulon quasiparticles. Established in 1953, the prize is awarded once every two years to honor outstanding results achieved by a young researcher in theoretical physics. For more information see the IST press release.
Mikhail Lemeshko receives Boltzmann Prize from APS President Reinhold Koch (credits: Karl Riedling)
Igor has demonstrated that the recently predicted 'angulon instabilities' have, in fact, been observed in recent experiments:
- I. N. Cherepanov, M. Lemeshko
Fingerprints of angulon instabilities in the spectra of matrix-isolated molecules,
Phys. Rev. Materials 1, 035602 (2017), arXiv:1705.09220
Giacomo has developed a diagrammatic technique to approach angular momentum in quantum many-particle systems. His theory combines the Feynman diagrams of condensed-matter physics with the angular momentum diagrams of atomic and nuclear structure theory:
This summer we are organizing a workshop "Controllable Quantum Impurities in Physics and Chemistry" (CoQIPC 2017), together with the Institute of Theoretical Atomic, Molecular, and Optical Physics (ITAMP, Harvard University).
The workshop will take place August 16–18 at IST Austria (near Vienna).
We aim to bring together people working on quantum impurities in ultracold gases, solid state systems, helium nanodroplets, and beyond.
Hurry up, the registration is open until July 1: http://ist.ac.at/coqipc2017
If you have any questions, just drop a message to Misha Lemeshko
B. Shepperson, A. S. Chatterley, A. A. Søndergaard, L. Christiansen, M. Lemeshko, H. Stapelfeldt
Strongly aligned molecules inside helium droplets in the near-adiabatic regime,
J. Chem. Phys. 147, 013946 (2017); arXiv:1704.03684
Selected as an AIP highlight:
Helium Droplets Offer New Precision to Single-molecule Laser Measurement