A seminar series in condensed matter physics. The seminars take place every other Tuesday during the spring term.
Speaker: Christian Schäfer, Chalmers
Title of the lecture: "Ab initio QED: Correlated light-matter states from first principles and their use for chirality and chemistry"
See abstract below.
Overview
- Date:Starts 25 April 2023, 10:15Ends 25 April 2023, 11:15
- Location:PJ seminar room
- Language:English
Abstract:
The alchemical dream of altering a given material on demand into something desirable is at the very heart of condensed matter theory. Confining optical or plasmonic modes leads to a strong increase of light-matter coupling and leads to the creation of hybrid states. Control over the electromagnetic confinement allows therefore to non-intrusively control the correlated eigenstates, the materials dynamics, and its chemistry. We will start with a brief introduction into the emerged field of ab initio QED [1], illustrating an intuitive shortcut for the description of self-consistent light-matter interaction [2]. We will subsequently investigate how chemical reactions can be controlled, shining light on the microscopic mechanism behind vibrational strong coupling [3,4]. Lastly, we discuss the consequences of breaking chiral symmetry with specifically designed electromagnetic environments which paves the way for a new direction in chiral recognition [5,6,7].
[1] C. Schäfer, F. Buchholz, M. Penz, M. Ruggenthaler, and A. Rubio, PNAS 2021 Vol. 118 No. 41 e2110464118.
[2] C. Schäfer and G. Johansson, PRL 128, 156402, (2022).
[3] C. Schäfer, J. Flick, E. Ronca, P. Narang, and A. Rubio, Nature Communications, (2022) 13:7817.
[4] C. Schäfer, Phys. Chem. Lett. 2022, 13, 30, 6905-6911.
[5] C. Schäfer, D. Baranov, arXiv:2209.07177, accepted in JPCLetters, 10.1021/acs.jpclett.3c00286.
[6] D. Baranov, C. Schäfer, M. Gorkunov arXiv:2212.13090, under review in ACS Photonics.
[7] In progress.
Contact
- Assistant Professor, Condensed Matter and Materials Theory, Physics