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Christian Kokail and Andreas Elben (Innsbruck University)29/06/2021, 09:00
The experimental characterization and quantification of entanglement properties, and the entanglement spectrum in particular, play a major role in our understanding of modern quantum many body physics in the lab. For most quantum lattice systems of interest, the reduced density matrix ρ of the lattice is described by a thermal state of a quasi-local Entanglement Hamiltonian H: ρ = exp(-β H)....
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Philipp Preiss (Heidelberg University)29/06/2021, 11:00
Ultracold gases are synthetic quantum systems that are exceptionally well suited for the study of strongly interacting fermions.On the one hand, ultracold Fermi gases naturally exhibit pairing,superfluidity and collective excitations known from solid state physics. On the other hand, their implementation in the laboratory allows microscopically resolved observations down to the single-particle...
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Nicolai Friis (Vienna University)29/06/2021, 11:30
Entanglement shared among multiple parties presents complex challenges for the characterisation of different types of entanglement. One of the most basic insights is the fact that some mixed states can feature entanglement across every possible bipartition of a multipartite system, yet can be biseparable, i.e., can be produced via a mixture of partially separable states. To distinguish...
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Giuseppe Vitagliano (Vienna University)29/06/2021, 12:00
I will present some recent results on entanglement detection and quantification with collective spin measurements in many-body ensembles. After a brief review of the idea of “Spin Squeezing” and its relation with multipartite entanglement and quantum metrology, I will show how the original spin squeezing approach can be generalized in several respects and how it allows to quantify multipartite...
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Mr Jad C. Halimeh
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