Kolloquien
Wintersemester 2021/2022
URL zum ICS-Kalender dieses Seminars
Kirchhoff-Institut für Physik, Otto-Haxel-Hörsaal
freitags 17:15
7.10.2021 17:30
INF 308, Hörsaal 1
Kolloquium der 47. Heidelberger Graduiertentage - Hans Jensen Invited Lecture
22.10.2021 17:00
INF 308, Hörsaal 1
Festkolloquium zum 90. Geburtstag von Prof. Dr. Gisbert zu Putlitz
Festkolloquium zum 90. Geburtstag von Prof. Dr. Gisbert zu Putlitz
mehr...
29.10.2021 17:00
INF 308, HS 1
Symmetries have played a crucial role in the development of the standard
model of particle physics. Moreover, they are believed to provide the key
ingredients for a unified description of all fundamental interactions. We
review the arguments that favor the investigation of these mathematical
structures and explain possible consequences for particle physics and
cosmology.
mehr...
5.11.2021 17:00
INF 308, Hörsaal 1
Man-made organic materials allow to tailor functional device properties in an
unprecedented manner. A prerequisite is the fundamental understanding of the
underlying physics. In this seminar, I will introduce some of our recent work, in which
we investigate the fundamentals of charge motion in carbon-based molecular materials
and use the gained insights to develop novel electronic functionality.
mehr...
12.11.2021 17:00
INF 308, HS 1
Festkolloquium zu Ehren von Prof. Dr. Franz Wegner
We study the force-force correlator for disordered elastic systems. We show that each
of the relevant universality classes has its own function. The nicest experiments are
for DNA unzipping and Barkhausen noise. For the latter we observe two distinct
universality classes, depending on the range of spin interactions. In all cases force-
force correlations grow linearly at small distances, while they are bounded at large
distances. As a consequence, avalanches are anti-correlated, i.e. reduced in size, at
short distances.
mehr...
19.11.2021 17:00
INF 308, HS 1
High field magnet applications like MRI, NMR and accelerator magnets are one of the
major success stories of superconductivity and only possible by tailoring
superconducting materials on various length scales. Besides the conventional low
temperature superconductors, cuprate based High Temperature Superconductors
(HTSC) and new superconducting materials will open completely new opportunities in
modern magnet/power applications and are currently on the way into commercial
products.
mehr...
26.11.2021 17:00
INF 308, HS 1
Finding new land expands the horizon. The same is true for new phases of matter. I
will discuss the rich landscape of strongly correlated quantum materials and their
fascinating properties, using heavy fermion compounds as a particularly versatile
platform to explore them.
mehr...
3.12.2021 17:00
INF 308, Hörsaal 1
Since the inception of agriculture by mankind about ten millennia ago, the basis of the
food supply for the human population has been the farming of field crops. However,
our conventional, biogenic agriculture (CBA) has failed to provide a reliable concept to
feed a growing population in a sustainable way. In particular CBA suffers from severe
environmental externalities - such as the massive use of land area, water for irrigation,
fertiliser, pesticides, herbicides, and fossil fuel.
mehr...
10.12.2021 17:00
Online
In the scientific reports, political debates, and to a large degree also in the media, the measure
of global climate change around the world is global mean temperature rise used as the metric
to determine how humans are changing the climate by burning fossil fuels. It is, however, not
the abstract measure of global mean temperature that cause loss and damage from climate
change, instead the impacts of climate change primarily manifest through rising sea levels and
the changing risks of extreme weather events.
mehr...
17.12.2021 17:00
Online
In 2015 the LIGO detectors observed, for the first time, a gravitational wave passing
through the Earth produced by the collision of two black holes. Such an event was a
milestone for astrophysics and it provided a remarkable confirmation of the general
theory of relativity. Since then, as many as ninety gravitational waves have
been observed by the LIGO and Virgo experiments, including signals from binary
neutron stars and neutron- star - black-hole binaries.
mehr...
14.1.2022 17:00
INF 308, Hörsaal 1
Nuclear halos are a fascinating manifestation of quantum physics. They belong to a
subset of low-density clustering for which most of the probability to find the halo
nucleon extends to a region of space that is classically forbidden. Their properties show
universal aspects of few-body systems such as scaling laws. Advances in the
production of radioactive isotope beams give access to loosely-bound neutron-rich
systems at the nuclear driplines, where halos are found.
mehr...
21.1.2022 17:00
INF 308, Hörsaal 1
Kolloquium Saskia Hekker verschoben auf das SS2022
28.1.2022 17:00
Prof. Dr. Chao-Yang Lu, Division of Quantum Physics and Quantum Information, University of Science and Technology of China, Shanghai Online
In the 1980s, Feynman observed that many-body quantum problems seemed difficult
to solve with classical computers due to the exponentially growing size of the quantum
state Hilbert space. He proposed that a quantum computer would be a natural solution.
mehr...
4.2.2022 17:00
INF 308, Hörsaal 1
Aerosols, tiny solid particles or liquid droplets suspended in air, are key elements in
the atmosphere of the Earth system, influencing air quality, climate and human health
in the Anthropocene. They scatter or absorb sunlight, serve as nuclei for clouds and
precipitation, and adversely affect human health. Aerosol formation and evolution
involve detailed gas-phase atmospheric chemistry and gas-particle interactions. The
interaction of aerosols with atmospheric water, as well as their size and physical
properties, are key to much of their behavior.
mehr...
11.2.2022 17:00
INF 308, Hörsaal 1
Kolloquium Wolfram Pernice verschoben auf das SS2022
Ever noticed that annoying lag that sometimes happens during the internet streaming
from, say, your favorite football game? Called latency, this brief delay between a
camera capturing an event and the event being shown to viewers is surely annoying
during the decisive goal at a World Cup final. But it could be deadly for a passenger of
a self-driving car that detects an object on the road ahead and sends images to the
cloud for processing. A way to dramatically reduce latency in artificial intelligence (AI)
systems lies in using light for computation instead of electronic circuits.
mehr...
18.2.2022 17:00
INF 308, Hörsaal 1
Computer vision is the branch of computer science devoted to the analysis and
understanding of images by computer algorithms. Typical problems studied in this field
and visited also in this talk are image segmentation, object recognition and multiple
object tracking. Rooted in engineering, an emphasis of computer vision research is on
the empirical study of practical algorithms. Trained as a physicist, I, the speaker, have
always been interested also in principles and models foundational to image analysis.
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