CoQuS Winter Semester 19/20

Lecturer(s): Caslav Brukner, Markus Aspelmeyer

Introduction to experiments and theoretical approaches in modern quantum optics.

When: Monday, 16:30 - 19:00

Where: Lise Meitner lecture hall, Boltzmanngasse 5, first floor

ECTS Credits: 5 ECTS

Lecturer(s): Caslav Brukner

Presentation and discussion of recent scientific articles in the field of foundations of quantum physics.

Currently no class schedule is known.

ECTS Credits: 5 ECTS

Lecturer(s): Thomas Nikolai Kiesel

The aim of the course is to provide insight into state-of-the-art topics of non-equilibrium thermodynamics and its underlying principles.
Specific examples include
- how the fundamental link between information and thermodynamics relates to the operation of memories
-how a single particle undergoing Brownian motion can be used to explore fundamental limits of operating engines in the classical and quantum regime
- how we can get a deeper understanding of the meaning of the 2nd law and the thermodynamic arrow of time.
Each student will, with the help of a supervisor, prepare an oral presentation on a specific topic. In addition, students will be provided questions and literature to prepare for a moderated debate on deeper topics within the seminar.

When: Tuesday, 11:00 - 12:30

Where: Kurt Gödel lecture hall, Boltzmanngasse 5, ground floor

ECTS Credits: 5 ECTS

Lecturer(s): Markus Aspelmeyer, Reinhold Bertlmann, Caslav Brukner, Borivoje Dakic, Beatrix Hiesmayr, Marcus Huber, Markus Müller, Miguel Navascues, Anton Zeilinger

Focus: Theory of quantum structure and geometry of space, time and matter Kochen-Specker theorem, Einstein-Podolsky-Rosen paradox, Bell inequalities, EPR-Bell like experiments Greenberger-Horne-Zeilinger experiment informationtheory neutron and atom interferometry, atom and molecule optics, double-slit experiments, interference in micro- to macrosystems, nano-oscillators

Currently no class schedule is known.

ECTS Credits: 5 ECTS

Lecturer(s): Markus Huber, Nicolai Friis

The goal is the in-depth study of concurrent research in quantum information with a focus on high-dimensional and multipartite entanglement, theoretical and experimental aspects of entanglement detection and certification, as well as recent developments in quantum thermodynamics. Invited talks from external experts are interspersed with student talks to recent developments in the field.

When: Monday, 14:00 - 15:30

Where: IQOQI Seminar room, Währinger Straße 47, eighth floor

ECTS Credits: 5 ECTS

Lecturer(s): Anton Zeilinger

Quantum entanglement is one of the most fundamental features of quantum mechanics, which finds more and more applications. In the seminar, recent research on new fundamental aspects and on novel implementations, particularly in higher dimensions and for quantum communication, will be discussed.

When: Wednesday, 10:00 - 12:00

Where: IQOQI, Boltzmanngasse 3, third floor

ECTS Credits: 5 ECTS

Lecturer(s): Philip Walther

The aim of this seminar is to present recent research results covering quantum photonics technolog or new quantum information tasks and applications.

When: Tuesday, 10:00 - 11:30

Where: Schrödinger kitchen, Boltzmanngasse 5, fourth floor

ECTS Credits: 5 ECTS

Lecturer(s): Miguel Navascues

When physicists do not trust the calibration of the devices composing an experimental setup, they can opt to model the whole experiment via a black box, where one inputs a symbol (the type of experiment) and returns an output (the outcome of the experiment). Remarkably, in some situations, the mere correlations between different laboratories (or boxes) allow one to learn something meaningful about the contents of each box. E.g.: assuming that the system inside the box is quantum, correlations between different boxes are enough to lower bound the Hilbert space dimension of the underlying quantum state. Morever, since different physical theories predict different possible correlations between distant observers, some of such “device-independent” experiments can reveal the nature of the system within the black box. In this seminar we will learn what makes correlations physical (classical, quantum or otherwise) and how different assumptions on the underlying experimental setups translate at the level of correlations.

When: Thursday, 14:00 - 15:30

Where: IQOQI Seminar room, Boltzmanngasse 3

ECTS Credits: 5 ECTS

Lecturer(s): Markus Aspelmeyer

In this seminar we cover the latest developments in the control of levitated solid-state objects. Particular emphasis will be given to phenomena and methods for exploring these newly available systems in the quantum regime, including
+ Fundamentals of optical and magnetic levitation
+ Trapping in complex potential landscapes
+ Coupling of trapped particles to surfaces, cavities and nano-photonic structures
+ Quantum control of levitated objects
+ Sensing and metrology with trapped particles
+ Trapped particles for fundamental tests of physics
+ Trapped particles as quantum matter waves

When: Thursday, 09:00 - 10:30

Where: Ernst Mach lecture hall, Boltzmanngasse 5, second floor

ECTS Credits: 5 ECTS

Lecturer(s): Markus Arndt

We will review recent papers in molecular quantum optics & quantum nanophysics.

When: Wednesday, 14:45 - 16:15

Where: Seminar room 55, Boltzmanngasse 5, first floor

ECTS Credits: 5 ECTS