Erlangen 2018 – wissenschaftliches Programm
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Q: Fachverband Quantenoptik und Photonik
Q 62: Poster: Quantum Optics and Photonics V
Q 62.17: Poster
Donnerstag, 8. März 2018, 16:15–18:15, Redoutensaal
Relaxation of an isolated Rydberg-spin system in an external field — •Nithiwadee Thaicharoen1, Adrien Signoles1, Miguel Ferreira-Cao1, Renato Ferracini Alves1, Titus Franz1, Andre Salzinger1, Asier Piñeiro Orioli2, Martin Gärttner3, Jürgen Berges2,4, Shannon Whitlock1,5, Gerhard Zürn1, and Matthias Weidemüller1,6 — 1Physikalisches Institut, Universität Heidelberg, Germany — 2Institut für Theoretische Physik, Universität Heidelberg, Germany — 3Kirchhoff-Institut für Physik, Universität Heidelberg, Germany — 4ExtreMe Matter Institute EMMI, Darmstadt, Germany — 5IPCMS and ISIS, University of Strasbourg and CNRS, Strasbourg, France — 6Shanghai Branch, University of Science and Technology of China, Shanghai, China
Dipolar interacting Rydberg spin systems have been ideal platforms to study non-equilibrium phenomena of isolated quantum systems. Their long-range interactions provide opportunities to investigate dynamics of correlated many-body quantum systems with beyond nearest-neighbor coupling. In this work, we present an experimental realization of a dipolar spin-1/2 model by coupling two strongly interacting Rydberg states utilizing a microwave field. With an ability to fully control phase, amplitude, and frequency of the microwave field, we perform arbitrary initial state preparation and study time evolution of the spin system under designated interactions. The resulting global magnetizations together with theoretical models suggest that the relaxation of the spin system is due to primordial quantum fluctuations while single particle decoherence does not play an important role.