威尼斯赌博游戏_威尼斯赌博app-【官网】

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威尼斯赌博游戏_威尼斯赌博app-【官网】

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Theoretical Physics III: Correlated quantum matter

Dynamics of correlated quantum matter

? 威尼斯赌博游戏_威尼斯赌博app-【官网】 of Augsburg

The dynamics of correlated quantum matter represents a key frontier in quantum physics. In our research we contribute to this frontier along two main axes. Firstly, we aim to explore novel universal behaviors, dynamical principles, and phases of matter in such dynamical quantum many-body systems, mostly far beyond equilibrium. In particular, we focus on identifying settings where the system's properties are genuinely quantum with no classical analogue. Secondly, our goal is to target the challenge of theoretically describing such nonequilibrium quantum systems. For that purpose we apply a broad class of methods ranging from purely analytical approaches to machine learning algorithms such as neural quantum states.

Strongly Correlated Light and Matter

? 威尼斯赌博游戏_威尼斯赌博app-【官网】 of Augsburg

Our research field lies at the boundary between quantum optics and condensed-matter physics. We are especially interested in collective phenomena arising in quantum open systems and more generally out of equilibrium, and their possible applications in the control of quantum materials functionalities as well quantum nonlinear optics. Currently, our main focus is on recent experiments implementing a novel, non-relativistic regime of Quantum Electrodynamics (QED) within quantum materials. A reliable description of this many-body problem is very challenging and being currently developed. We adopt tailored field-theoretical approaches, which extend methods from condensed matter and quantum optics theory, merging them into a consistent, comprehensive and flexible framework.

Professor
Theoretical Physics III

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Professor
Theoretical Physics III

Homepage:

Email:

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A full list of publications of the chair can be found here.

June 11, 2025

Quantum hard disks on a lattice

We formulate a quantum version of the hard-disk problem on lattices, which exhibits a natural realization in systems of Rydberg atoms. We find that quantum hard disks exhibit unique dynamical quantum features in 1D and 2D. We link this peculiar quantum behavior to quantum many-body scars. Our study highlights the potential of constrained 2D quantum matter to display unique dynamical behaviors.
威尼斯赌博游戏_威尼斯赌博app-【官网】
Quantum hard-disks illustration
July 1, 2024

Machine learning solves complex quantum problems

Due to a new method, artificial neural networks, as used in machine learning, will be able to be trained quicker so as to be able to solve complex problems in quantum mechanics. For example, previously unexplained properties of a special state of matter, the quantum spin liquid, can be calculated, something that has not been possible with any previous method to date. This has been made possible by a new optimisation method developed by the Institute of Physics.

威尼斯赌博游戏_威尼斯赌博app-【官网】
Visualisierung eines neuronalen Netzes.
April 19, 2024

Honorary doctorate for Prof. Dieter Vollhardt

Prof. Dieter Vollhardt was awarded an honorary doctorate by the 威尼斯赌博游戏_威尼斯赌博app-【官网】 of Warsaw last week in recognition of his scientific achievements and longstanding collaboration with theoretical physicists at the 威尼斯赌博游戏_威尼斯赌博app-【官网】 of Warsaw.

威尼斯赌博游戏_威尼斯赌博app-【官网】
Four men in traditional academic clothing, three of which are wearing black gowns and one, second from right, wearing a red gown (Rector).
Dec. 5, 2023

Leading quantum mechanical research

The Centre for Electronic Correlations and Magnetism (EKM) was established in the early 1990s. Since then, it has become a top research institute in the field of quantum mechanics. The meeting of the scientific advisory board of the EKM in Augsburg, composed of leading experts in the field, confirms this.

威尼斯赌博游戏_威尼斯赌博app-【官网】
Quantenmechanische Forschung
Sept. 9, 2021

Paper: Reinforcement Learning for Digital Quantum Simulation

Digital quantum simulation on quantum computers provides the potential to simulate the unitary evolution of any many-body Hamiltonian with bounded spectrum by discretizing the time evolution operator through a sequence of elementary quantum gates. A fundamental challenge in this context originates from experimental imperfections, which critically limits the number of attainable gates...

威尼斯赌博游戏_威尼斯赌博app-【官网】
bolens
July 27, 2021

Paper: Unitary Long-Time Evolution with Quantum Renormalization Groups and Artificial Neural Networks

In this work, we combine quantum renormalization group approaches with deep artificial neural networks for the description of the real-time evolution in strongly disordered quantum matter. We find that this allows us to accurately compute the long-time coherent dynamics of large many-body localized systems in nonperturbative regimes including the effects of many-body resonances.

威尼斯赌博游戏_威尼斯赌博app-【官网】
burau

Contact information:

Address: Universit?tsstra?e 1 (Physik Süd), 86159 Augsburg
Telefon: +49-(0)-821-598-3701?(Secretary’s office)

Fax: +49-(0)-821-598-3725

E-Mail:?angelika.abendroth@physik.uni-augsburg.de

Office: 410 (S)

? 威尼斯赌博游戏_威尼斯赌博app-【官网】 of Augsburg

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