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[Fizinfo] BME Elm. Fiz. Szeminárium, máj. 20., Werner Miklós

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
Subject: [Fizinfo] BME Elm. Fiz. Szeminárium, máj. 20., Werner Miklós
Date: Thu, 19 May 2022 10:27:43 +0200
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Meghívó

BME Elméleti Fizika Szeminárium,

május 20. péntek 10h15,

1111 Budapest, Budafoki út 8., BME F III. magasföldszint 01.,
Elméleti Fizika Tanszék szemináriumi szoba
és
online a Microsoft Teams-ben
<https://teams.microsoft.com/l/meetup-join/19%3ae1a26210676841cdbb27bb01cf353392%40thread.tacv2/1652948694727?context=%7b%22Tid%22%3a%226a3548ab-7570-4271-91a8-58da00697029%22%2c%22Oid%22%3a%22c7eaf7d2-684b-4597-b217-6a9121400219%22%7d>

Werner Miklós (BME Elm. FIz.):
Simulating Lindbladian evolution with non-abelian symmetries

We develop [1] a non-Abelian time evolving block decimation (NA-TEBD)
approach to study of open systems governed by Lindbladian time evolution,
while exploiting an arbitrary number of abelian or non-abelian symmetries.
We illustrate this method in a one-dimensional fermionic SU(2) Hubbard
model on a semi-infinite lattice with localized particle loss at one end.
We observe a ballistic front propagation with strongly renormalized front
velocity, and a hydrodynamic current density profile. For large loss rates,
a suppression of the particle current is observed, as a result of the
quantum Zeno effect. Operator entanglement is found to propagate faster
than the depletion profile, preceding the latter.

[1]: CP Moca, MA Werner, Ö Legeza, T Prosen, M Kormos, G Zaránd:
arXiv:2112.15342

Minden érdeklődőt szeretettel várunk.
Asbóth János,
szemináriumi koordinátor

[Fizinfo] BME Elm. Fiz. Szeminárium, máj. 20., Werner Miklós, Janos Asboth, 05/19/2022