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Re: [Fizinfo] BME Elm. Fiz. Szeminárium, ápr. 25, Németh Dániel

From: Janos Asboth <asboth.janos AT ttk.bme.hu>
To: elmfiz.oktatok-kutatok AT lists.bme.hu, elmfiz.hallgatok AT lists.bme.hu, fizinfo AT lists.kfki.hu, Németh Dániel <nemeth.daniel.1992 AT gmail.com>
Subject: Re: [Fizinfo] BME Elm. Fiz. Szeminárium, ápr. 25, Németh Dániel
Date: Tue, 22 Apr 2025 21:59:56 +0200
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Dear All,

Sorry for the typo in my previous announcement,

BME Elméleti Fizika Szeminárium,

ápr. 25 péntek 10h15,
1111 Bp., Budafoki út 8., BME FIII. magasföldszint 1, szemináriumi szoba

Németh Dániel (Radboud University, NL):
Dimensions and Topologies from simplicial quantum gravity

Hope to see many of you there and then (NOT on April 11)

Janos Asboth

On Tue, Apr 22, 2025 at 8:29 PM Janos Asboth <asboth.janos AT ttk.bme.hu>
wrote:

> Meghívó
>
> BME Elméleti Fizika Szeminárium,
>
> ápr. 11 péntek 10h15,
> 1111 Bp., Budafoki út 8., BME FIII. magasföldszint 1, szemináriumi szoba
>
> Németh Dániel (Radboud University, NL):
> Dimensions and Topologies from simplicial quantum gravity
>
> The framework of this talk will be Causal Dynamical Triangulations, which
> is a lattice approach to quantum gravity. Using a discretized version of
> the Einstein-Hilbert action, CDT predicts the existence of a 4-dimensional
> deSitter spacetime. The lattice description allows for the incorporation of
> matter fields too, similarly as it is done for standard Lattice QCD. There
> is one caveat though, that is the nontrivial notion of dimension and
> topology. I will show what it means to have an effective description of
> spacetime dimension (DOI 10.1088/1361-6382/acd0fc) via the introduction of
> the discrete Laplacian operator and also show a phase-transition in
> topology using an interaction between scalar fields and the background
> geometry (DOI 10.1088/1361-6382/ac2135). Furthermore I will present results
> regarding the implementation of SU(N) Yang-Mills gauge fields and the
> topological charge as an observable (arXiv:2411.12668).
>
> Minden érdeklődőt szeretettel várunk.
> Asbóth János,
> szemináriumi koordinátor
>
>

[Fizinfo] BME Elm. Fiz. Szeminárium, ápr. 25, Németh Dániel, Janos Asboth, 04/22/2025
- Re: [Fizinfo] BME Elm. Fiz. Szeminárium, ápr. 25, Németh Dániel, Janos Asboth, 04/22/2025