[RpL 1044] Re: еженедельные научные семинары

Anna Kardakova anna_kardakova на mail.ru
Пн Окт 30 10:34:59 MSK 2017


Уважаемые коллеги,

На этой неделе у нас состоится ДВА научных семинара.

_*1 ноября в 17:00*_ выступит _*Сидорова Мария*_ с докладом: "Physical 
mechanisms of timing jitter in photon detection by current carrying 
superconducting nanowires"

Краткая аннотация:

We studied timing jitter in the appearance of photon counts in 
meandering nanowires with different fractional amount of bends. Timing 
jitter, which is the probability density of the random time delay 
between photon absorption in current-carrying superconducting nanowire 
and appearance of the normal domain, reveals two different underlying 
physical scenarios. In the deterministic regime, which is realized at 
large currents and photon energies, jitter is controlled by position 
dependent detection threshold in straight parts of meanders and 
decreases with the current. At small photon energies, jitter increases 
and its current dependence disappears. In this probabilistic regime 
jitter is controlled by Poisson process in that magnetic vortices jump 
randomly across the wire in areas adjacent to the bends.

_*3 ноября в 17:00*_ выступит _*Баева Эля*_ с обсуждением статьи "The 
Bardeen-Cooper-Schrieffer supercurrent field-effect transistor" [G. De 
Simoni, F. Paolucci, P. Solinas, E. Strambini, F. Giazotto, 2017].
https://arxiv.org/abs/1710.02400

Приглашаются все желающие.

С уважением,
Анна Кардакова


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