.pdf-Version des Kommentierten Vorlesungsverzeichnisses

Kommentiertes Vorlesungsverzeichnis Sommersemester 2020

Logo der Fachgruppe Physik-Astronomie der Universität Bonn

physics631 Quantum Optics
Tu 14-16, Th 8-10, HS, IAP
  Instructor(s): F. Vewinger
  Prerequisites: Optics and Atomic Physics Lectures, Quantum Mechanics
  Contents: The lecture will deal with the quantized version of the light field. We will discuss the (observable) differences between a classical and a quantum light field, and we will try to shed some light on the concept of a "photon".

Special focus will be put on the description of the state of a field. While the density matrix contains all relevant information, it is in many cases infinite in size, and descriptions in phase space are more convenient. Some of them allow to distinguish between classical states (as the thermal Planck radiation) and non-classical states (as squeezed states or Schrödinger cat states). We will also discuss the problem of the interaction between a single atom and a quantized light field, the so-called Jaynes-Cummings model.

The lecture is an experimental one, which means we will discuss how the theoretical concepts of quantum optics can be measured in the lab, and what signatures of the quantization are important.

The course will cover:

- Quantization of the light field
- Classical and nonclassical states of the light field
- Coherence properties of light fields
- Phase-space representations and their measurement
- Cavity QED
- Schrödinger cat states
- Introduction to quantum information theory
  Literature: R. Loudon; The quantum theory of light (Oxford University Press 2000)
G. J. Milburn, D. F. Walls; Quantum Optics (Springer 1994)
D. Meschede; Optik, Licht und Laser (Teubner, Wiesbaden 2nd edition. 2005)
M. O. Scully, M. S. Zubairy; Quantum Optics (Cambridge 1997)
P. Meystre, M. Sargent; Elements of Quantum Optics (Springer 1999)
  Comments: Lecture: 3 Teaching hours (3 Semesterwochenstunden)
Exercises: 1 Teaching hour (1 Semesterwochenstunde)
The exercises, in two hour blocks, alternate every two weeks with a lecture.

Details: See ecampus for more details
physics636  Advanced Theoretical Particle Physics
Mo 12-14, We 13, HS I, PI
  Instructor(s): M. Drees
  Prerequisites: Theoretical Particle Physics 1; some knowledge of quantum field theory is expected in some parts of the lecture.
  Contents: Neutrino oscillations and neutrino masses;
Grand Unified Theories;
  Literature: G. Ross, Grand Unified Theories, discusses both supersymmetric and non-supersymmetric GUTs.
Drees, Godbole and Roy, Theory and Phenomenology of Sparticles, gives an in-depth treatment of supersymmetry, with emphasis on phenomenological aspects.
Peskin and Schroeder, An Introduction to Quantum Field Theory, treats the underlying formalism, but also contains many particle physics applications
physics713 Particle Detectors and Instrumentation
Mo 14-16, HS I, Tu 16, Konferenzraum II, PI 1.049, PI
  Instructor(s): T.C. Jude, H. Schmieden
  Prerequisites: Completed B.Sc. in Physics, with experience in quantum mechanics, atomic- and nuclear physics
  Contents: Quark structure of mesons and baryons, nucleon excitation; electromagnetic probes, electron
accelerators, photon beams, relativistic kinematics, interaction of radiation with matter, detectors for
photons, leptons and hadrons;
Main issue is the hands-on laboratory course: setup of detectors and experiment at ELSA,
and a real experiment will be performed to observe excited states of the proton through meson
production with high-energetic photon beams.
  Literature: B. Povh, K. Rith, C. Scholz, F. Zetsche; Teilchen und Kerne (Springer, Heidelberg 6. Aufl. 2004)
Perkins; Introduction to High Energy Physics (Cambridge University Press 4. Aufl. 2000)
W. R. Leo; Techniques for Nuclear and Particle Detection (Springer, Heidelberg 2. Ed. 1994)
K. Kleinknecht; Detektoren für Teilchenstrahlung (Teubner, Wiesbaden 4. überarb. Aufl. 2005)
physics718 Programming in Physics and Astronomy with C++ or Python
Fr 8-10, Hörsaal des Meteorologischen Instituts, Auf dem Hügel 20
  Instructor(s): T. Erben
  Prerequisites: The course does not require prior programming knowledge. Basic knowledge on Unix/Linux is beneficial.
  Contents: The Python-version of the course is offered in SS2020

  • A thorough introduction to scientific computing with the easy-to-learn, high-level programming language Python

  • Introduction to numpy-arrays (primary Python-data structure for
    scientific computing)

  • Introduction to the scientific-python modules (scipy)

  • Interactive work / development with Python

  • Plotting and visualization of scientific data with python (the matplotlib module)

  • Version control / collaborative software development

  Literature: All required course materials will be made available online.
  Comments: Lectures Friday 8-10 (lecture room of the Meteorologisches Institut, Auf dem Hügel 20)


  • An own Laptop is required to attend lectures and exercises!

  • Prior registration for the course is necessary via eCampus (https://ecampus.uni-bonn.de/goto_ecampus_crs_1650305.html). The number of participants is limited to 50 students and the spots are distributed on a first come-first serve basis.

physics719 BCGS intensive week (Test beam measurements with a pixel telescope at the DESY electron test beam)
September 7th - 11th
  Instructor(s): I. Gregor
  Prerequisites: Bachelor in Physics
  Contents: - overview on detectors for particle physics
- passage of particles through matter
- basics on tracking detectors with focus on semi-conductor detectors
- important parameters for detector testing
- radiation damage effects
- taking data with a pixel telescope (electron tracks at DESY test beam)
- data analysis
- simulations

[for questions please contact gregor[at]physik.uni-bonn.de ]
  Literature: Will be provided.
  Comments: The course is an all-week workshop at DESY in Hamburg starting on September
7th at 9:15.

The Intensive Week will have lectures in the morning and hands-on exercises in
the afternoon organised at the test beam facility at DESY. Travel support will be
covered by BCGS and centrally organised at the end of June 2020.

IF the corona situation will no allow travel to Hamburg a full online alternative for
this course will be offered!
physics739 Lecture on Advanced Topics in Photonics: Precision measurements in atomic physics
Th 10-12, HS, IAP
  Instructor(s): S. Stellmer
  Prerequisites: Basic knowledge in atomic physics and laser physics, as obtained in the Bachelor Courses "Experimentalphysik III" and "Experimentalphysik IV".
  Contents: The development of lasers marked the advent of a new era in precision measurements. In this lecture, we will cover a number of different topics, mainly in the fields of atomic physics. The tentative program:

Lecture 0: Introduction
Lecture 1: Ramsey spectroscopy
Lecture 2: Optical clocks 1
Lecture 3: Optical clocks 2
Lecture 4: Hydrogen spectroscopy 1
Lecture 5: Hydrogen spectroscopy 2
Lecture 6: Highly charged ions
Lecture 7: EDM measurements
Lecture 8: Inertial sensing
Lecture 9: Pulsar timing
  Comments: Lectures will be on Thursdays 10-12, tutorials on Tuesdays 8-10. We are planning for an all-online semester of teaching. The first lecture will be on April 23. More information will follow.
physics740  Hands-on Seminar: Experimental Optics and Atomic Physics
Mo 9-11, IAP
  Dozent(en): M. Weitz u.M.
  Erforderliche Vorkenntnisse: Optik- und Atomphysik Grundvorlesungen, Quantenmechanik
  Inhalt: Diodenlaser
Optische Resonatoren
Akustooptische Modulatoren
und vieles mehr
  Literatur: wird gestellt
  Bemerkungen: Das Hands-On Seminar soll in diesem Semester als
Blockseminar in der vorlesungsfreien Zeit stattfinden
(7.- 18. September).

Vorbesprechung am Montag, den 7.September 2020, um 9 c.t.

Die Vorbesprechung findet Online per Zoom statt, wobei Zugangsdaten
auf ecampus zu finden sind.
physics773 Physics in Medicine: Fundamentals of Medical Imaging
Mo 10-12, We 12, SR I, HISKP
  Instructor(s): K. Lehnertz
  Prerequisites: BSc
  Contents: Introduction to physical imaging methods and medical imaging
(1) Physical fundamentals of transmission computer tomography (Röntgen-CT), positron emission
computer´tomography (PET), magnetic resonance imaging (MRI) and functional MRI
(1a) detectors, instrumentation, data acquisition, tracer, image reconstruction, BOLD effect
(1b) applications: analysis of structure and function
(2) Neuromagnetic (MEG) and Neuroelectrical (EEG) Imaging
(2a) Basics of neuroelectromagnetic activity, source models
(2b) instrumentation, detectors, SQUIDs
(2c) signal analysis, source imaging, inverse problems, applications
  Literature: 1. H. Morneburg (Hrsg.): Bildgebende Systeme für die medizinische Diagnostik, Siemens, 3. Aufl.
2. P. Bösiger: Kernspin-Tomographie für die medizinische Diagnostik, Teubner
3. Ed. S. Webb: The Physics of Medical Imaging, Adam Hilger, Bristol
4. O. Dössel: Bildgebende Verfahren in der Medizin, Springer, 2000
5. W. Buckel: Supraleitung, VCH Weinheim, 1993
6. E. Niedermeyer/F.H. Lopes da Silva; Electroencephalography, Urban & Schwarzenberg, 1998
More literature will be offered
  Comments: Beginning: April 15, 2020
physics775 Nuclear Reactor Physics
We 10-12, SR I, HISKP
  Instructor(s): F. Klein
This lecture was a part of the regular scheme over decades at the university of Bonn, given in summer terms.
After leave of absence of the last lecturer in charge it was removed from the written lecture announcements,
but is now again offered for continuation for at least the running term to comply with the relevance of the subject.
By dictate of rules following the Corona crises classical lectures in halls are not adequate for the time being.
As for all other lectures ways to present the lectures by online transmission are presently investigated and prepared.
Corresponding information will be communicated as soon as possible.

(Planned) contents:
In broad society Nuclear Fission Reactors are mostly known for their role in production of electrical energy.
However, their importance goes much beyond: breeding of important radionuclides for medical and technical
applications (also of fissionable material for nuclear weapons, unfortunately), sourcing neutrons for fundamental
and material research, providing high neutrino fluxes for measurements of neutrino properties and more.
The lecture will elaborate on the underlying nuclear physics, basic principles of nuclear reactor operation and control,
waste management (storage, transmutation e.g.), analysis of severe accidents and aforementioned applications.
The current research, status and perspectives of fusion reactors will also be addressed, tentatively by invitation of
an original researcher involved in the projects at Garching and Greifswald.
  Comments: 2 h per week, no separate excercises, limited oral practicing included in lectures,
dates and ways of performance of lectures to be decided and communicated
physics652  Seminar on Quantum Optics and Technology
Mo 14-16, HS, IAP
  Instructor(s): D. Meschede
  Prerequisites: Courses for the Bachelor of Science in Physics
  Contents: We will discuss central experiments of quantum optics and applications in quantum technology.

Due to Covid-19 contraints the seminar may be hold in terms of an online course.
  Literature: The seminar will be based on original articles. The assigments will be handed out during the first session on April 20 2020, 14 c.t.

Note: Early birds may receive a topic by contacting us any time before April 20.
  Comments: - The reading period sould be at least 4 weeks.
- The talks will have a length of 45 min.
- Two weeks before your talk a draft of all slided must be presented with your tutor.
- No later than one week before your talk a test talk must be given.
physics655 Seminar on low temperature physics
Mo 16-18, HS, IAP
  Instructor(s): E. Soergel
  Prerequisites: Bachelor of Science
  Contents: Low temperature physics starts with the supplying of low temperatures, and their measurement. Furthermore, a series of fascinating physics such as the superfluidity or the much better known superconductivity occur at low temperatures only.

This seminar is intended to give an overview on low temperature physics from the experimental point of view (garnished with a couple of theoretical topics).
physics656 Seminar Medical Physics: Physical Fundamentals of Medical Imaging
Mo 14-16, SR I, HISKP
  Instructor(s): K. Lehnertz
  Prerequisites: Bsc
  Contents: Physical Imaging Methods and Medical Imaging of Brain Functions
Emission Computer Tomography (PET)
- basics
- tracer imaging
- functional imaging with PET
Magnetic Resonance Imaging (MRI)
- basics
- functional MRI
- diffusion tensor imaging
- tracer imaging
Biological Signals: Bioelectricity, Biomagnetism
- basics
- recordings (EEG/MEG)
- source models
- inverse problems
  Literature: 1. O. Dössel: Bildgebende Verfahren in der Medizin, Springer, 2000
2. H. Morneburg (Hrsg.): Bildgebende Systeme für die medizinische Diagnostik,
Siemens, 3. Aufl.
3. H. J. Maurer / E. Zieler (Hrsg.): Physik der bildgebenden Verfahren in der Medizin,
4. P. Bösiger: Kernspin-Tomographie für die medizinische Diagnostik, Teubner
5. Ed. S. Webb: The Physics of Medical Imaging, Adam
  Comments: Beginning: April 20, 2020
Time: Mo 14 - 16 and one lecture to be arranged
physics658  Seminar on modern topics in the theory of strong interactions
Th 10-12, HS, HISKP
  Instructor(s): U. Meißner, M. Petschlies, C. Urbach
  Prerequisites: AQT, QFT I
  Contents: In this seminar we will cover modern topics in the theory of strong interactions. This will in particular cover topics in:

  • nuclear lattice effective field theory

  • lattice QCD

  • scattering in finite volume

  • numerical simulations of QFTs

  Literature: Will be topic dependent and discussed during the first week.
  Comments: We will start April 23rd, probably with a video meeting.
6820 Research Internship
Data analysis, detectors and numerical simulations at BGO-OD (ELSA) and COMPASS (CERN)
pr., all day, 3-4 weeks, applications to schmieden@physik.uni-bonn.de
  Instructor(s): H. Schmieden
  Prerequisites: Physik V (Nuclear and Particle Physics) or equivalent
  Contents: Setup and test of detector components and Monte Carlo simulations for the COMPASS@CERN and
BGO-OD@ELSA experiments. Data analysis using ROOT.
  Literature: Leo, Techniques for Nuclear and Particle Physics Experiments
Povh, Rith, Scholze, Nuclei and Particles
Griffiths, Introduction to Elementary Particles
Cahn and Goldhaber, Particle Physics
  Comments: Duration 2 – 4 weeks (part time), by individual agreement
6822 Research Internship / Praktikum in der Arbeitsgruppe:
Proton-Proton-Collisions at the LHC (D/E)
lab, whole day, ~4 weeks, preferred during off-teaching terms, by appointment, PI
  Instructor(s): M. Cristinziani, J. Dingfelder, E. von Törne
  Prerequisites: Lecture(s) on Particle Physics
  Contents: Within 4 weeks students receive an overview/insight of the research carried out in our research group.

Topics: Analyses of data taken with the ATLAS Experiment at the LHC
especially: Higgs and Top physics, tau-final states and b-tagging

The exact schedule depends on the number of applicants appearing at the same time.
  Literature: will be handed out
  Comments: Early application is required
Contacts: J. Dingfelder, E. von Törne, T. Lenz, M. Cristinziani
6825 Praktikum in der Arbeitsgruppe: Vorbereitung und Durchführung von Experimenten zur Laserspektroskopie und anderer Präzisionsmessungen; Mitwirkung an den Forschungsprojekten der Arbeitsgruppe
pr, ganztägig, Dauer: n. Vereinb. 2-6 Wochen, PI
  Instructor(s): S. Stellmer
  Contents: Small experimental or theoretical projects in relation to our main research work.
6826 Praktikum in der Arbeitsgruppe: Neurophysik, Computational Physics, Zeitreihenanalyse
pr, ganztägig, ca. 4 Wochen, n. Vereinb., HISKP u. Klinik für Epileptologie
  Instructor(s): K. Lehnertz u.M.
  Prerequisites: basics of programming language
  Contents: This laboratory course provides insight into the current research activities of the Neurophysics group.
Introduction to time series analysis techniques, neuronal modelling, complex networks.
Opportunity for original research on a topic of own choice, with concluding presentation to the group.
  Literature: Working materials will be provided.
  Comments: Contact:
Prof. Dr. K. Lehnertz
email: klaus.lehnertz@ukbonn.de
6834  Praktikum in der Arbeitsgruppe: Vorbereitung und Durchführung optischer und atomphysikalischer Experimente, Mitwirkung an Forschungsprojekten der Arbeitsgruppe / Laboratory in the Research Group: Preparation and conduction of optical and atomic physics experiments, Participation at research projects of the group (D/E)
pr, ganztägig, 2-6 Wochen n. Vereinb., IAP
  Dozent(en): M. Weitz u.M.
  Erforderliche Vorkenntnisse: Optik und Atomphysik Grundvorlesungen, Quantenmechanik
  Inhalt: Studenten soll frühzeitig die Möglichkeit geboten werden, an aktuellen Forschungsthemen aus dem Bereich der experimentellen Quantenoptik mitzuarbeiten: Ultrakalte atomare Gase, Bose-Einstein-Kondensation, kollektive photonische Quanteneffekte. Die genaue Themenstellung des Praktikums erfolgt nach Absprache.
  Literatur: wird gestellt
  Bemerkungen: Homepage der Arbeitsgruppe:

6838 Praktische Übungen zur Bildgebung und Bildverarbeitung in der Medizin
pr, Kliniken Venusberg
(Teilnahme am Seminar "Medizinische Physik" erforderlich)
  Instructor(s): K. Lehnertz, C. Berg, W. Block, P. Trautner
  Contents: Continuation of topics addressed in lecture and seminar; examples of medical imaging in prenatal diagnosis, radiology, and neurosciences.
  Comments: Dates to be arranged during the semester.
astro821  Astrophysics of galaxies
Th 15:00-18, Raum 0.012, AIfA
Exercises: 1 hr. by appointment
  Instructor(s): P. Kroupa
  Prerequisites: see web page
  Contents: see web page
  Literature: see web page
  Comments: see web page
astro8402 X-ray astronomy
Fr 13-15, Raum 0.012, AIfA
Exercises: 1 hr. by appointment
  Instructor(s): T. Reiprich
  Prerequisites: Introductory astronomy course.
  Contents: X-rays are emitted from regions where the Universe is hot and wild. The lecture will provide an overview of
modern X-ray observations of all major X-ray sources. This includes, e.g., comets and planets in our solar
system; Galactic systems like extrasolar planets, cool and hot stars, remnants of exploded stars, isolated
white dwarfs and neutron stars, cataclysmic variables, close binaries with neutron stars and black holes, hot
interstellar medium, and the Galactic center region; extragalactic X-ray sources like spiral and elliptical
galaxies, galaxy clusters, intergalactic medium, and active galactic nuclei, i.e., supermassive black holes
lurking in the centres of galaxies. The X-ray emission and absorption processes as well as current and future
space-based instruments used to carry out such observations will be described, including the eROSITA space
telescope to be launched in 2019. In the accompanying lab sessions, the participants will learn how to
download, reduce, and analyze professional X-ray data from a satellite observatory.
  Literature: A script of the lecture notes will be provided.
astro847 Optical Observations
Fr 11-13, Raum 0.012, AIfA
Exercises: Mo 9
  Instructor(s): T. Schrabback, M. Tewes
  Prerequisites: Astronomy introduction classes
  Contents: Optical CCD and near infrared imaging, conducting and planning observing runs,
detectors, data reduction, catalogue handling, astrometry, coordinate systems,
photometry, spectroscopy, photometric redshifts, basic weak lensing data
analysis, current surveys, ground-based data versus Hubble Space Telescope
observations, how to write observing proposals.

Practical experience is gained by obtaining and analysing multi-filter CCD
imaging observations of galaxy clusters using the 50cm telescope on the AIfA
  Literature: Frederick R. Chromey: To Measure the Sky
  Comments: The class has a strong focus on hands-on observations and data analysis. It
should be particularly useful for students who consider conducting a master's
thesis project which involves the analysis of optical imaging data from
professional telescopes (e.g. wide-field imaging data or Hubble Space Telescope
astro849 Multiwavelength observations of galaxy clusters
Mo 16-17:30, Raum 0.008, AIfA
Exercises: 1 hr. by appointment
  Instructor(s): T. Reiprich, F. Pacaud
  Prerequisites: Introductory astronomy course.
  Contents: Aims of the course:
To introduce the students into the largest clearly defined structures in the Universe, clusters of galaxies. In
modern astronomy, it has been realized that a full understanding of objects cannot be achieved by looking at
just one waveband. Different phenomena become apparent only in certain wavebands, e.g., the most massive
visible component of galaxy clusters -- the intracluster gas -- cannot be detected with optical telescopes.
Moreover, some phenomena, e.g., radio outbursts from supermassive black holes, influence others like the X-
ray emission from the intracluster gas. In this course, the students will acquire a synoptic, multiwavelength
view of galaxy groups and galaxy clusters.
Contents of the course:
The lecture covers galaxy cluster observations from all wavebands, radio through gamma-ray, and provides a
comprehensive overview of the physical mechanisms at work. Specifically, the following topics will be
covered: galaxies and their evolution, physics and chemistry of the hot intracluster gas, relativistic gas, active
supermassive black holes, cluster weighing methods, Sunyaev-Zeldovich effect, gravitational lensing, radio
halos and relics, tailed radio galaxies, and the most energetic events in the Universe since the big bang:
cluster mergers.
  Literature: Lecture script and references therein.
astro851 Stellar and solar coronae
Th 13-15:15, Raum 0.01, MPIfR
Exercises: 1 hr. by appointment
  Instructor(s): M. Massi
T Tauri (young stellar systems not yet in Main Sequence) and RS CVn systems (evolved stellar systems that already left the Main Sequence), although very diverse systems, have similar flare activities observed at radio and X-ray wavelengths.

The flares in both systems are several orders of magnitude stronger than those of the Sun. The origin of this activity, defined "coronal activity", depends on the convective zone, the rotation, the formation and dissipation of magnetic fields. In general terms: This is a mechanism of the same type as on the Sun, but enforced by the binary nature of these systems.

In these lectures we will explore a link between the amplification of initial magnetic fields by dynamo action in several rotating systems ( Sun, binary systems and accretion discs around black holes) and the release of magnetic energy into a corona where particles are accelerated.

Together with the basic theory there will be as well illustrated the latest progress in the research on stellar coronal emission derived from recent space missions and high-resolution radio observations.
  Literature: The Solar Corona.
Golub and Pasachoff
6952  Seminar on theoretical dynamics
Fr 14-16, Raum 3.010, AIfA
  Instructor(s): P. Kroupa
  Prerequisites: see web page
  Contents: see web page
  Literature: see web page
  Comments: see web page
6953  Seminar on stellar systems: star clusters and dwarf galxies
Tu 16:15-17:45, Raum 3.010, AIfA
  Instructor(s): P. Kroupa
  Prerequisites: see web page
  Contents: see web page
  Literature: see web page
  Comments: see web page
6954 Seminar on galaxy clusters
Th 15-17, Raum 0.006, AIfA
  Instructor(s): T. Reiprich
  Prerequisites: Introductory astronomy course.
  Contents: The students will report about up-to-date research work on galaxy clusters based on scientific papers.
  Literature: Will be provided.