# CoQuS Summer Semester 18

Lectures, Seminars and Lab Courses

## University of Vienna

### Exercises

#### The Physics of Matter-waves (260019-1)

Lecturers: Christian Brand & Armin Shayeghi

When:

Mondays from 14:30 - 16:00

05.03 (Kickoff Class), 19.03, 09.04, 16.04, 23.04, 30.04, 07.05, 14.05, 28.05, 04.06, 11.06, 18.06, 25.06.

Where

Ernst-Mach-Hörsaal, Boltzmanngasse 5, 2. Stk., 1090 Wien

ECTS Credits

5.00 ECTS

### Seminar

#### Molecular Quantum Optics (260043) – (Bachelor & Master)

Professor(s): Markus Arndt

Content:

We will focus on advanced exerperiments in atomic physics and quantum optics,

following the layout of a highly recommended book in the field:

"Advances in Atomic Physics", by Cohen-Tannoudji and Guéry Odelin.

The goal is to understand the concepts, ideas and experiments presented in this book.

Students have to be prepared to read all selected chapters of the book over the entire semester, but to prepare for every presentation about 30 pages in this book and associated background literature.

When: Wednesday 14:00 – 16:15 Room 55, 1st floor

Start: 25.04.2018

ECTS Credits: 2 hrs, 5.00 ECTS

The course counts as "passed" when all three criteria are met

- 80% attendance rate

- 2 talk delivered

Grade: 70% physics understanding. 30% clarity of the presentation

### Lab course

#### Praktikum Quantenoptik (260211)

Professor(s)/teacher(s): Philip Walther, Yaakov Fein, Philipp Geyer, Nikolai Kiesel, Marie-Christine Röhsner, Valeria Saggio, Ugur Sezer, Teodor Strömberg, Michael Trupke

Vorbesprechung: 11.06.2018 um 11:30 Uhr. Ort: Quantum kitchen (Zi.3249)

Block: 03.-21.09.2018

### Lecture

#### Quantum Optics I (260046)

Professor(s): Nikolai Kiesel

Content:

The aim of the course is to obtain an understanding of the quantum properties of light. The course will provide an introduction into the experimental foundations of quantum optics, the key experiments and the basic theoretical principles. Topics include: review of linear and nonlinear optics; lasers and cavities; photon statistics; nonclassical states of light; cavity quantum electrodynamics (cavity QED); quantum optical control of matter (trapped ions, quantum optomechanics); measuring time and space with quantum light (frequency combs, atomic clocks, gravitational wave detectors)

Start: Wednesday 07.03.2018 14:00 - 15:30 Ernst Mach lecture hall

ECTS Credits: 2 hrs, 2,5 ECTS

### Lecture

#### Advanced Group theory in Physics (260058)

Professor(s): Frank Verstraete

Content:

In this course, we will introduce concept and tools in group theory needed for understanding advanced concepts in quantum many body systems and especially topological phases of matter. Topics covered are e.g. representation theory of finite groups, a discussion of projective representations and cohomology groups and the classification of semisimple Lie algebras.

Start: Tue 10.04.2018 from 14:15 - 16:30 in seminar room 504-506, Währinger Straße 17, 5th floor

ECTS Credits: 2 hrs, 2,5 ECTS

More info on Ufind

### Lecture

#### Quantum Information Theory ll (260159)

Professor(s): Beatrix Hiesmayr

Content:

Selected Topics from Quantum Information Theory, including quantum cryptography, secret sharing, secret sharing+genuine entanglement, open quantum systems (decoherence/master equations), mutually unbiased bases+uncertainty relations, mutually unbiased bases+detection of entanglement, relativistic entanglement of two massive particles, contextuality,...

Start: Thu 01.03.2018 from 16:00 - 17:30 in the Kurt-Gödel lecture hall

ECTS Credits: 2 hrs, 2,5 ECTS

### Lecture

#### Quantum Thermodynamics l (260053)

Professor(s): Marcus Huber & Nicolai Friis

Start: Thu 01.03.2018 from 13:30 - 14.15 in the Ludwig Boltzmann lecture hall

ECTS Credits: 2 hrs, 2,5 ECTS

### Exercises

#### Quantum Optics l (260035-1)

Professor(s): Tobias Westphal

When

Tuesday from 13:00 - 13:45

13.03, 20.03, 10.04, 17.04, 24.04, 08.05, 15.05, 29.05, 05.06, 12.06, 19.06, 26.06

Where

Josef Stefan Lecture hall, Boltzmanngasse 5, third floor

### Seminar

#### Fachspezifisches Seminar - Quanteninformation, Verschränkung und Geometrie (260247)

Professor(s): Beatrix Hiesmayr, Reinhold Bertlmann and Frank Verstraete

Start: Thu 08.03.2018 from 13:00 - 16:00 in the Victor-Franz-Hess lecture hall, Währingerstraße 17

ECTS Credits: 2 hrs, 5.00 ECTS

### Lecture

#### The physics of Matter-waves (260044)

Professor(s): Markus Arndt

Content:

Goal of this lecture is to provide a comprehensive review over some history, the state of the art and emergent applications of matter-wave interferometry, a field that is growing rapidly at the interface between the foundations of quantum physics, condensed matter physics, chemical physics, biomolecular physics, geodesy and metrology

- General Concepts of Coherence
- Interferometer Concepts
- Electron Interference
- Elements of Neutron Interferometry
- Beam splitters for atoms
- Atom interferometry concepts
- Mathematical descriptions of matter-waves:

using the wave function

using Feynman path integrals

using Wigner functions in phase space - Atom interferometry Applications
- Bose Einstein condensation and interference
- Molecule & cluster interferometry: realizations
- Molecule interferometry: applications
- Visions for matter-wave interferometry

Start:

Wednesday 07.03.2018 from 12:15-13:45 in the Ernst Mach lecture hall.

ECTS Credits: 4 hrs, 5 ECTS

### Lecture

#### Complex Quantum Systems Summerschool (260122)

Professor(s): Philip Walther

Content:

Introduction to modern topics of quantum optics, quantum nano physics and quantum information.

When: 17.-21.09.2018

ECTS Credits: 2 hrs, 2,5 ECTS

### Lecture

#### Ringvorlesung über Grundlagen der Physik: Wissenschaftlicher Realismus (442632)

Professor(s): Časlav Brukner

Content:

Whether there exists a reality to be described by science is one of the oldest questions in philosophy of science. Are theoretical entities merely useful predictive tools or a faithful description of an outside real world?

Crucial fundamental issues in quantum theory, such as the ontological status of the wave function and of the properties of particles are still heatedly debated. N. David Mermin points out [1] that disagreement about the meaning of quantum theory is stronger than ever - new interpretations appear every day, but none of them ever disappear. Following Adan Cabello’s proposal [2] to rank interpretations according to their “level of reality”, we have invited some of the most prominent representatives of different interpretations to reconsider the foundations of Scientific Realism.

Despite the clear importance of the concept of realism in the studies of natural sciences, fundamental issues of such kind are rarely treated in as much detail as they would deserve. This lecture series was thus thought and organized by a group of students of the University of Vienna from different scientific fields, who aim at contributing to a sensitization towards the significance of philosophical and fundamental investigation in science.

Start: Mon. 05.03.2018 from 13:00 - 15:00 in the Erwin-Schrödinger lecture hall (5th floor).

Thursdays 16:00 - 19:00, Boltzmann-Hörsaal

ECTS Credits: 2 hrs, 2,5 ECTS

### Lecture

#### Theoretische Physik ll: Quantenmechanik l (260267)

Professor(s): Časlav Brukner

Tutor: Franziska Fritsche

Start: Mon 05.03.2018 from 09:00 - 11:00 in the Christian Doppler lecture hall.

ECTS Credits: 4 hrs, 5 ECTS

# Technical University

### Lecture

#### Macroscopic Quantum Systems (141.231)

Lecturers: J. Schmiedmayer, Ph. Haslinger, I. Mazets

When:

First Block: 24, 25 April, 14:00 – 18:00

3 blocks (two afternoons with coffee break) + student seminars

Where: Seminar Room, Atominstitut, Stadionallee 2

ECTS: 3

Content:

This lecture will give an introduction into the physics of degenerate quantum systems and Bose-Einstein condensation. It will link standard knowledge in atomic physics, quantum mechanics, and statistical physics to on-going research in the field of quantum and atom optics. The participants will learn to read and understand recent publications and get an overview on the field.

### Lecture

#### Quantum Optics II (141.A11)

Lecturer: P. Rabl

When: Wednesday 10:00 - 12:00,

Where: Sem.R. DB gelb 5A, Freihaus, Wiedner Hauptstraße 8-10

ECTS: 3

Content:

(1) Electromagnetically induced transparency and slow light; (2) The master equation and applications; (3) Laser cooling and trapping of neutral atoms and ions: Doppler-Sisyphus-cooling; optical and magnetic traps, ion traps; (4) Photodetection: coherence, photon-photon correlations, correlation functions; (5) Sources of non-classical light: entangled photon pairs, squeezed light, test of quantum mechanics (Bell's inequalities);