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Colloquium

Topic:

Multiplexed Optical Imaging by means of Spatial Light Modulators

Date:

29.05.17

Time:

16:15

Place:

H6

Guest:

Prof. Dr. Monika Ritsch-Marte

Medizinische Universität Innsbruck, Department f. Physiologie und Medizinische Physik

Abstract:

Synthetic holography by means of programmable phase masks on spatial light modulators allows one to create multiplexed holograms. Integrating SLM- wavefront shaping into an optical imaging system, enables multiplexed imaging, where every image consists of sub-images corresponding, for instance, to different depth layers in the imaged object or, in for quantitative phase microscopy, to different parameter settings. Multi-plane imaging and parallelized confocal imaging are used to demonstrate the potential of the approach.

Contact person:

T. Huser

Colloquium Mathematical Physics

Topic:

tba

Date:

02.06.17

Time:

16:15

Place:

V2-210/216

Guest:

Stefan Adams

University of Warwick

Abstract:

Contact person:

M. Baake

Seminar High Energy Physics

Topic:

Possible astrophysical signatures of non-WIMP dark matter candidates

Date:

30.05.17

Time:

14:15

Place:

D6-135

Guest:

Subinoy Das

Indian Institute of Astrophysics, Bangalore

Abstract:

From cosmological observations we know that DM must display clustering properties similar to CDM, at least on the largest scales. However, the particle nature of DM is still not known. The linear LSS observations, such as WiggleZ, BOSS, and Planck data on CMB temperature and polarization anisotropies can be used to place very stringent constraints on any dark matter models that show deviation from the ?CDM model for k < 0.1 Mpc?1. However, at smaller scales the situation remains unclear from astrophysical observables, e.g. the missing satellite problem, too big to fail problem. This points to a need to study plausible dark matter models that allow for significant deviation from ?CDM models at small scales and confront them with astrophysical and cosmological observables.

Contact person:

D. Schwarz

Seminar Condensed Matter

Topic:

Connecting Spin Hamiltonians from DFT Calculations to Experiment

Date:

06.04.17

Time:

14:15

Place:

D5-153

Guest:

Shadan Ghassemi

TU Berlin

Abstract:

Contact person:

Jürgen Schnack

Seminar Mathematical Physics

Topic:

Non-orthogonality of eigenvectors from the Haagerup-Larsen theorem

Date:

01.06.17

Time:

16:00

Place:

D5-153

Guest:

Wojciech Tarnowski

Jagiellonian University Krakow

Abstract:

Biunitarily invariant ensembles have been thoroughly studied in recent years from the point of view of statistics of eigenvalues. An enhanced symmetry of the probability distribution function allows us to expect that all spectral properties will be determined by the singular values only. Indeed, for large matrices, a mapping between one-point densities is known as the Haagerup-Larsen theorem. Recently, this mapping has been extended to all k-point functions (Kieburg-Kösters). During my talk, I will present a recent extension of the Haagerup-Larsen theorem, which gives a simple mapping between the radial spectral cumulative distribution function and a certain one-point eigenvector correlation function, built out of (non-orthogonal) left- and right eigenvectors. I will discuss also its relation with the stability of the spectrum.

Contact person:

Gernot Akemann

Seminar AG Zufallsmatrizen

Topic:

Polyanalytic Ginibre ensembles

Date:

17.05.17

Time:

16:15

Place:

V3-201

Guest:

Antti Haimi

Universität Wien

Abstract:

We will discuss Polyanalytic Ginibre ensembles, a family of determinantal processes describing planar free fermions in a constant magnetic field. A physical interpretation is that a fixed number of first Landau levels are filled with particles. The classical Ginibre process corresponds to the case where only the lowest level is occupied. We will study the limiting behaviour as the magnetic field strength tends to infinity.

Contact person:

Gernot Akemann



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  • | Letzte Änderung: 23.11.2011
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