[Landau ITP Seminars] Friday 25.02.2022

[Serge Krashakov]

Уважаемые коллеги!

На заседании Ученого совета в пятницу 25 февраля 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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