Rostock 2019 – wissenschaftliches Programm

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Q: Fachverband Quantenoptik und Photonik

Q 7: Ultracold Plasmas and Rydberg Systems

Q 7.7: Vortrag

Montag, 11. März 2019, 12:00–12:15, S SR 211 Maschb.

Strong correlations and dissipative dynamics in quantum many-body systems — •Seyedjavad Kazemi and Hendrik Weimer — Institut für Theoretische Physik, Leibniz Universität Hannover, Appelstraße 2, 30167 Hannover, Germany

The combination of strong correlations and dissipative dynamics in a quantum many-body system presents a severe challenge to their theoretical descriptions, as many methods for equilibrium systems cannot be applied. We build on the variational principle for dissipative quantum many-body systems [1] and extend the method to important questions in the context of strongly interacting spin systems. As a first step, we analyse the non-equilibrium steady state of Rydberg atoms with strong long-range interactions, where we find a dissipative variant of the Rydberg blockade in the pair correlation function. In addition, we investigate the interplay between driving strength and dimensionality.

[1] H. Weimer, Variational Principle for Steady States of Dissipative Quantum Many-Body Systems, Phys. Rev. Lett. 114, 040402 (2015).