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Time's Arrow of a Quantum Superposition of Thermodynamic Evolutions
A priori, there exists no preferential temporal direction as microscopic physical laws are time-symmetric. Still, the second law of thermodynamics allows one to associate the 'forward' temporal direction to a...
Nov 27, 2020
On the tensor product structure of general covariant systems
Defining a generic quantum system requires, together with a Hilbert space and a Hamiltonian, the introduction of an algebra of observables, or equivalently a tensor product structure. Assuming a background...
Mar 03, 2020
Exploring alternatives to quantum nonlocality
In recent years, it has become increasingly well-known that nearly all the major no-go theorems in quantum foundations can be circumvented by violating a single assumption: the hidden variables (that...
Dec 09, 2020
Can we think time-symmetrically about causation?
We often say that quantum mechanics allows to calculate the probability of future events. In fact, quantum mechanics does not discriminate between predicting the future or postdicting the past. I...
Dec 10, 2020
Self-testing Bell inequalities from the stabiliser formalism and their applications
I will introduce a tool to construct self-testing Bell inequalities from the stabiliser formalism and present two applications in the framework of device-independent certification protocols. Firstly, I will show how...
Dec 11, 2020
Decoherence vs space-time diffusion: testing the quantum nature of gravity
Consistent dynamics which couples classical and quantum systems exists, provided it is stochastic. This provides a way to study the back-reaction of quantum systems on classical ones and has recently...
Dec 14, 2020
Spacetime and quantum theory: insights via quantum foundations
While spacetime and quantum theory are crucial parts of modern theoretical physics, the problem of quantum gravity demonstrates that their full relationship is not yet completely understood. In my talk...
Dec 18, 2020
Quantum Foundations Seminar
Abstract TBA
Jan 02, 2018
Quantum Foundations Seminar
Abstract TBA
Jan 09, 2018
Quantum Foundations Seminar
Abstract TBA
Jan 16, 2018