CERN Accelerating science

Video Lectures

Letzte Einträge:
2021-07-30
09:55
Heavy Ions -Q&A / Bellini, Francesca (speaker) (Universita e INFN, Bologna (IT))
2021 - 0:40:25. Online Summer Student Programme 2021; Heavy Ions - Q&A External links: Talk details; Event details In : Heavy Ions - Q&A

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2021-07-30
08:41
Not yet available
Cosmic magnetic fields: a new window to the early Universe / Schober, Jennifer (speaker)
Magnetic fields are observed on virtually all length scales of the modern Universe, from planets and stars to galaxies and galaxy clusters. Observations of blazars suggest that even the intergalactic medium is permeated by magnetic fields [...]
2021 - 1:00:20. Theory Colloquia External link: Event details In : Cosmic magnetic fields: a new window to the early Universe

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2021-07-30
08:41
Experimental Physics at Lepton Colliders -Q&A / Dam, Mogens (speaker) (University of Copenhagen (DK))
2021 - 0:41:26. Online Summer Student Programme 2021; Experimental Physics at Lepton Colliders - Q&A External links: Talk details; Event details In : Experimental Physics at Lepton Colliders - Q&A

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2021-07-29
10:53
Half-wormhole in SYK with one time point / Mukhametzhanov, Baur (speaker) (IAS (Princeton))
2021 - 0:46:56. Conferences & Workshops; Gauge/Gravity Duality 2021 External links: Talk details; Event details In : Gauge/Gravity Duality 2021

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2021-07-29
10:53
Enstrophy from symmetry and holography / Pinzani Fokeeva, Natalia (speaker)
Enstrophy is an approximately conserved quantity in 2+1 dimensional fluid flows that has dramatic consequences for the phenomenology of turbulence: it implies an inverse energy cascade in 2+1 dimensions. In this talk, I will illustrate an algorithm to construct an enstrophy current for fluid flows with various degrees of symmetry, including, but not limited to, the well-known case of non-relativistic (Galilean) fluid flows. Moreover, I will identify the accidental symmetry associated with enstrophy conservation in a recently realized effective action for hydrodynamics. Finally, I will show how horizon symmetries of 3+1 dimensional black holes with Anti-de Sitter asymptotics also lead to enstrophy conservation..
2021 - 0:46:03. Conferences & Workshops; Gauge/Gravity Duality 2021 External links: Talk details; Event details In : Gauge/Gravity Duality 2021

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2021-07-29
10:06
Holographic Entropy Cone from Marginal Independence / Hubeny, Veronika (speaker) (UC-Davis)
This talk will explain recent puzzling revelations in the ongoing efforts to obtain a useful characterization of entanglement structure of geometric states in a holographic CFT, via the so-called holographic entropy cone (HEC). The relations between subsystem entanglement entropies which delimit this cone are known explicitly for only a rather coarse subdivision of the system (specified by N spatial regions, for up to N = 5). [...]
2021 - 0:49:35. Conferences & Workshops; Gauge/Gravity Duality 2021 External links: Talk details; Event details In : Gauge/Gravity Duality 2021

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2021-07-29
10:06
Thermalization of 2d Quantum Field Theories / Luca, Delacrétaz (speaker) (University of Chicago)
I will show that (1+1)d QFTs typically thermalize more slowly than the expected "Planckian" equilibration time 1/T. This arises due to causality, which imposes strong constraints on the emergence of hydrodynamic sound in low dimensions. [...]
2021 - 0:41:11. Conferences & Workshops; Gauge/Gravity Duality 2021 External links: Talk details; Event details In : Gauge/Gravity Duality 2021

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2021-07-29
10:06
The volume of the black hole interior at late times / Sarosi, Gabor (speaker) (CERN)
The volume of the interior of a two-sided eternal black hole classically grows forever. I will show that in JT gravity, summing the non-perturbative contribution of higher topologies leads to a saturation of the volume of the interior at times exponential in the entropy of the black hole. [...]
2021 - 0:45:26. Conferences & Workshops; Gauge/Gravity Duality 2021 External links: Talk details; Event details In : Gauge/Gravity Duality 2021

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2021-07-28
17:02
Complexity and Conformal Transformations / Flory, Mario (speaker) (Jagiellonian University)
In this talk I will (mainly) present my recent work on complexity, especially how conformal transformations in AdS_3/CFT_2 can provide useful information to check holographic complexity proposals, as well as considerations of complexity of conformal transformations on the field theory side..
2021 - 0:49:13. Conferences & Workshops; Gauge/Gravity Duality 2021 External links: Talk details; Event details In : Gauge/Gravity Duality 2021

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2021-07-28
17:02
Towards a Classification of Fermionic Rational Conformal Field Theories / Bae, Jinbeom (speaker) (Korea Institute for Advanced Study)
2021 - 0:44:56. Conferences & Workshops; Gauge/Gravity Duality 2021 External links: Talk details; Event details In : Gauge/Gravity Duality 2021

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