Seminars Digest, Vol 40, Issue 3

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Today's Topics:

1. Friday 28.01.2022 (Serge Krashakov)

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Message: 1
Date: Thu, 27 Jan 2022 01:41:34 +0300
From: Serge Krashakov <sakr@itp.ac.ru>
To: staff@itp.ac.ru, students@itp.ac.ru, seminars@itp.ac.ru
Subject: [Landau ITP Seminars] Friday 28.01.2022
Message-ID: <f7d29897-096b-460e-9bae-53a179f855eb@itp.ac.ru>
Content-Type: text/plain; charset="utf-8"; Format="flowed"

Уважаемые коллеги!

На заседании Ученого совета в пятницу 28 января в 11:30 будет заслушан
доклад:

_А.В. Лункин_, М.В. Фейгельман
*High-frequency transport and zero-sound in an array of SYK quantum dots*

We study an array of strongly correlated quantum dots of complex SYK
type and account for the effects of quadratic terms added to the SYK
Hamiltonian; both local terms and inter-dot tunneling are considered in
the non-Fermi-liquid temperature range T≫TFL. Electric σ(ω,p) and
thermal κ(ω,p) conductivities are calculated as functions of frequency
and momentum, for arbitrary values of the particle-hole asymmetry
parameter E. At low-frequencies ω≪T we find the Lorentz ratio
L=κ(0,0)/σ(0,0) to be non-universal and temperature-dependent. At ω≫T
the conductivity σ(ω,p) contains a pole with nearly linear dispersion
ω≈splnωT reminiscent of the "zero-sound", known for Fermi-liquids.

ID и пароль онлайн-трансляции в Zoom те же, что и для предыдущих
трансляций докладов на Ученом совете:
https://zoom.us/j/96899364518?pwd=MzBsR2lYT0lYL2x2b1oyNU9LeWlWUT09
Meeting ID: 968 9936 4518
Пароль: 250319

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