SFB / TRR 21 Control of Quantum Correlations in Tailored Matter

Projekt B11 Quantum simulator with engineered spin arrays in diamond

Summary

In this project we will realize experimentelly our theoretical proposal of a new solid-state architecture for a scalable solid state based quantum simulator that (i) can operate at room temperature thus obviating the need for elaborate cooling technique; (ii) does not require external fields to trap its constituent particles in ultra-high vacuum; (iii) permits control by easy to handle radiofrequency and microwave fields and (iv) exhibits an exceptionally high ratio of coherence times to fundamental interaction time scale.

Project leaders

Prof. Dr. Fedor Jelezko, Institut für Quantenoptik, Universität Ulm
Prof. Dr. Ute Kaiser, Institut für Elektronenmikroskopie, Universität Ulm
Prof. Dr. Martin Plenio, Institut für Theoretische Physik, Universität Ulm

 

Projekt C11 Quantum coherence in light-harvesting complexes

Summary

The experimental observation that quantum coherent dynamics is present during excitation energy transfer and may therefore play a role in the dynamics and function of biological systems is one of the most intriguing scientific discoveries of the last decade. Motivated by these results, a range of theoretical models have been put forward showing that quantum coherent effects that are usually thought to be fragile to environmental fluctuations, may survive in the noisy environment characteristic of pigment-proteins. However, a direct connection between these theoretical results and actual ensemble experimental data is not straightforward and the interpretation of current experiments is not fully conclusive. A more transparent verification of theory predictions requires the use of single molecules. Only then it will be possible to address the big question: that is, the formulation of a possible quantitative relation between quantum coherence and biological function.

Project leaders

Prof. Dr. Fedor Jelezko, Institut für Quantenoptik, Universität Ulm
Prof. Dr. Susana Huelga, Institut für Theoretische Physik, Universität Ulm
Prof. Dr. Martin Plenio, Institut für Theoretische Physik, Universität Ulm
Prof. Dr. Robin Gosh, Biologisches Institut, Universität Stuttgart