Martin-Luther-Universität Halle-Wittenberg


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Kolloquium Theoretische Physik

Das Theorie-Kolloquium wird von der Fachgruppe Theoretische Physik in Kooperation mit dem SFB 762 sowie dem SFB/TRR 102 veranstaltet. Anliegen sind fachübergreifende physikalische Themen von allgemeinem Interesse. Angesprochen sind Studenten höherer Studienjahre, alle Interessenten und insbesondere alle Mitarbeiter der Fachgruppe Theoretische Physik.

Das Theoriekolloquium findet, wenn nicht explizit ausgewiesen, wie folgt statt:

Ort: SR 1.02, Von-Seckendorff-Platz 1

Zeit: 16:15 - 17:30

DatumReferent / Thema
17.05.2017Prof. Chris Greene
Department of Physics and Astronomy
Perdue University, Indiana

Experimental capabilities with ultracold few-body systems
continue to advance rapidly in a number of contexts. This talk will highlight two recent developments. First, the observation of butterfly Rydbergmolecules with kilodebye dipole moments (H. Ott's group in Kaiserslautern) opens the door to the possibility of observing interesting blockaded phases in one dimension. Second, experimental observations of heavy-heavy-light Efimov physics in a mixture of Cs and Li atoms (M. Weidemueller's and C. Chin's groups) have sparked in-depth theoretical studies that suggest intriguing new regimes where interference minima compete and intertwine with resonances in recombination.
23.11.2016Dr. Markus Heyl
Faculty of Physics, Theoretical Solid State Physics
TU Dresden, MPIPKS Dresden
17.08.2016Dr. Andrey Moskalenko
Department of Physics and Center for Applied Photonics,
University of Konstanz, Germany

Sampling the Quantum Vacuum and Subcycle Squeezing
SR 1.02, Von-Seckendorff-Platz 1
Prof. Albert Fert
(Unité Mixte de Physique CNRS/Thales, Palaiseau and
Université Paris-Sud, France)

Interface-induced Dzyaloshinskii-Moriya interactions
and skyrmions at room temperature in magnetic layers and
25.02.2016Christian Schilling
University of Oxford

Fermionic Exchange Symmetry: Quantifying its Influence
Pauli's Exclusion Principle

The Pauli exclusion principle has a strong impact on the
properties and the behavior of most fermionic quantum
systems. Remarkably, even stronger restrictions on
fermionic natural occupation numbers follow from the
fermionic exchange symmetry. We develop an operationally
meaningful measure which allows one to quantify the
potential physical relevance of those generalized Pauli
constraints beyond the well-established relevance of
Pauli's exclusion principle. It is based on a geometric
hierarchy induced by Pauli exclusion principle
constraints. The significance of that measure is
illustrated for a few-fermion model which also confirms
such nontrivial relevance of the generalized Pauli
28.10.2015Dr. Olga Smirnova
Max-Born-Institut für Nichtlineare Optik und
Kurzzeitspektroskopie, Berlin

Attosecond Spectroscopy: from measuring ionization times to time-resolving chiral response
07.10.2015Supriyo Datta
Purdue University

Title: NN
08.07.2015Prof. Dr. S. P. Das,
School of Physical Sciences,
Jawaharlal Nehru University,
New Delhi 110067, India.
Scan: Dynamic correlation length linked to density fluctuations in a metastable liquid
01.07.2015Prof. Dr. John P. Perdew
(Departments of Physics and Chemistry. College of Science
and Technology. Temple University. Philadelphia, PA 19122

Scan: Strongly constrained & appropriately normed semilocal density functional
10.06.2015Prof. Dr. Jaroslav Fabian
(Institute for Theoretical Physics, University of
Spin phenomena in two dimensional material
25.03.2015Dr. Michael Fechner
(ETH Zürich)
Topic: "Magnetoelectric multipoles"
VSP1 1.23
Prof. Dr. Rudolf Hilfer (Institut für Computerphysik, Universität Stuttgart) Local stationarity in time in interacting many body systems
23.04.2014Prof. Dr. Sergey Denisov (Institut für Physik,
Universitat Augsburg, Univeritatsstr.1)

"ac-driven quantum ratchets with Bose-Einstein

"I will start with a brief introduction into the symmetry
analysis followed by a crash-course on the Floquet
analysis of ac-driven quantum systems. Then I will show
how the symmetry analysis allows one to figure out the
prerequisites for the quantum ratchet transport to occur
and next helps to predict the direction of this
transport. Theoretical considerations will be illustrated
with the experimental results obtained by measuring
mobility of a Bose-Einstein condensate of rubi atoms
loaded into different ac-driven optical potentials.
Finally, some open problems and promising directions will
be discussed."
12.06.2013Prof. Melina Grifoni (Institute I Theoretische Physik,
Universität Regensburg)

"Spin dependent phenomena in carbon nanotubes"

"...Carbon nanotubes possess exceptional electronic
properties and are ideal candidates to investigate
transport properties ofquantum systems of reduced
dimensions. In my talk I will in particular address
phenomena which occur due to the presence of spin and
isospin degrees of freedom as a result of the honeycomb
structure of the underlying graphene lattice."
19.06.2013Prof. Volker Engel (Physikalische und Theoretische Chemie, Universität Würzburg)
VSP1 1.26
Prof. Dr. Thomas Franosch (Friedrich-Alexander-
Universität Erlangen-Nürnberg)
Persistent correlations in complex Transport – Brownian motion and beyond

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