Talks by Reinhard F. Werner
available on Video

Compiled Nov. 2024. Typically, the videos were recorded at special events like public talks, or at workshops and conferences. Naturally, some of these links are not long-time stable, and may be broken.

Public Talks

Quantencomputer – Rechnen mit einzelnen Atomen: mit Christian Ospelkaus und Markus Duwe, Highlights der Physik, DPG Hannover 2024
Das Ende der klassischen Welt - Der Physik-Nobelpreis 2022: Abendvortrag bei der DPG Frühjahrskonferenz 2023 in Hannover
Bohr vs. Einstein: Contribution to Physics Feuds, St Cross Centre for the History and Philosophy of Physics, organized by Joanna Ashburn. Oxford 2023
The story of quantum correlations: Colloquium at the ICQT Singapore, 2022
How to give a really confusing explanation of entanglement: From the Singapore set listed below, but less technical. 2022
A verifyably fair lottery: One of a series of explanations of Bell's Theorem done by different colleagues in Singapore.
Can we measure the quality of scientific work?: Science Cafe Turku, lecture given at Panimoravintola (=Brewery restaurant) Koulu in Turku 2018

Video lectures produced in Singapore 2022

Produced by Dr. Han Rui and Dr. Dai Jibo, with advice from Berge Englert for the Quantum Talent project of the Singapore National Quantum Computing Hub. See this list or below.

Mini course Impossible machines in Quantum mechanics: 4 lectures. Total duration ca. 2 hours.
Mini course Uncertainty relations: 5 lectures. Total duration ca. 2 hours. Covers not only the usual preparation uncertainty relations but also measurement uncertainty, related to disturbance/information gain tradeoffs and the impossibility of joint measurement.
Mini course Arrival times in Quantum mechanics: 6 lectures. Total duration ca. 2 hours.
Interferometer and uncertainties: 1 lecture together with Berge Englert. Duration ca. 20 min.

Lecture Course: Mathematical Methods of Quantum Information Theory

Lecture 1:   Hilbert spaces, scalar product, bra, ket, operators
Lecture 2:   operators, diagonalization, functional calculus, qubit, composite systems, and the tensor product
Lecture 3:  composition, tensor product, channels, Heisenberg picture, Schrödinger picture, complete positivity, channel examples: unitary, depolarizing, von Neumann measurement
Lecture 4:  state space, probabilites, composition, the positive cone, positivity, and the geometry of cones
Lecture 5:  (given by David Reeb): extremal points, pure states, extremal observables, POVMs, and effect operators
Lecture 6:  extremal observables, the Choi-Jamiokowski isomorphism, Kraus operators, and symmetries of the positive cone
Lecture 7:  symmetries of the positive cone, Wigner's theorem, anti unitary operators, symmetry groups, one-parameter groups, and irreducible representations
Lecture 8:  how to construct a Hilbert space, positive kernel, kolmogorov dilation, completion, Naimark dilation, going to the larger Hilbert space, and Stinespring dilation
Lecture 9:  the Stinespring dilation Theorem and proof, Example: Naimark dilation, GNS representation, comparison theorem
Lecture 10: corollaries for the Stinespring dilation Theorem
Lecture 11: instruments, statistical structure, Choi isomorphism and channels, classical models, and Bell correlations
Lecture 12: entanglement
Lecture 13: tasks and resources
Lecture 14: (given by David Reeb): quantum teleportation and dense coding 1
Lecture15: quantum teleportation and dense coding 2
Lecture 16: norms and fidelities
Lecture 17: some semidefinite tasks in QI
Lecture 18: noisy resources and conversion rates

Conference talks

Inductive limits of quantum systems, equilibrium states and dynamics: ICMS Workshop "From finite to infinite dimensions", Edinburgh 2023
The operational side of quantum field theory: Summer School TU München 2022
Quantum walks and coarse structure: Banff 2019
Alice and Bob meet von Neumann: Paris 2017
Quantum and classical harmonic analysis: Banff 2015
Systems and subsystems: QPL workshop Oxford 2009
Quantum Cellular automata: Part 2 Part 3QPL workshop, Oxford 2009

Not by me