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Cosmology from current and future spectroscopic galaxy surveys
Mapping of galaxy density fluctuations on large scales is one of the most important goals of observational cosmology in this decade. These observations can significantly improve our knowledge of the...
Oct 06, 2020
Leading order correction to the QES prescription
We show that a naïve application of the quantum extremal surface (QES) prescription can lead to paradoxical results and must be corrected at leading order. The corrections arise when there...
Oct 06, 2020
Quantum algorithms for the Petz recovery channel, pretty-good measurements and polar decomposition
The Petz recovery channel plays an important role in quantum information science as an operation that approximately reverses the effect of a quantum channel. The pretty good measurement is a...
Oct 07, 2020
Robert Spekkens and Elie Wolfe, Perimeter Institute
What do data science and the foundations of quantum theory have to do with one another? A great deal, it turns out. The particular branch of data science known as...
Oct 07, 2020
Astrophysical backgrounds of gravitational waves: an overview
The astrophysical background of gravitational waves (AGWB) is composed by the incoherent superposition of gravitational wave signals emitted by resolved and unresolved astrophysical sources from the onset of stellar activity...
Oct 08, 2020
Quasimaps and BPS counts
The theory of quasimaps to Nakajima quiver varieties X has recently been used very effectively by Aganagic, Okounkov and others to study symplectic duality. For certain X, namely Hilbert schemes...
Oct 08, 2020
Witnesses of non-classicality beyond quantum theory
I discuss general argument to show that if a physical system can mediate locally the generation of entanglement between two quantum systems, then it itself must be non-classical. Remarkably, the...
Oct 08, 2020
Quantum preparation games
To analyze the performance of adaptive measurement protocols for the detection and quanti cation of state resources, we introduce the framework of quantum preparation games. A preparation game is a...
Oct 09, 2020
Strong gravitational lensing as a cosmological probe: new ways of constraining dark
Studying the smallest self-bound dark matter structure in our Universe can yield important clues about the fundamental particle nature of dark matter, and galaxy-scale strong gravitational lensing provides a unique...
Oct 13, 2020