نتایج جستجو برای: key t j
تعداد نتایج: 1430389 فیلتر نتایج به سال:
A reconfigurable, multi-party quantum key distribution scheme is experimentally demonstrated by utilizing a poled fiber-based source of broadband polarization-entangled photon pairs and dense wavelengthdivision multiplexing (DWDM). The large bandwidth (> 90 nm centered about 1555 nm) and highly spectrally-correlated nature of the entangled source is exploited to allow for the generation of more...
We consider a general Markovian queueing model with possible catastrophes and obtain new and sharp bounds on the rate of convergence. Some special classes of such models are studied in details, namely, (a) the queueing system with S servers, batch arrivals and possible catastrophes and (b) the queueing model with “attracted” customers and possible catastrophes. A numerical example illustrates t...
We report the transmission of 40 quantum-key channels using WDM/SCM-QKD technology and 4 bidirectional classical channels over a PON. To our knowledge the highest number of quantum key channels simultaneously transmitted that has ever been reported. The quantum signal coexists with classical reference channel which is employed to process the qbits, but it has enough low power to avoid Raman cro...
فرض کنیم $r$ حلقهای جابهجایی، نوتری و با عنصر یکه ناصفر باشد. فرض کنیم $i$ و $j$ ایدهآلهایی از $r$ و $s$ یک زیر مجموعه بسته ضربی در $r$ باشد. راتلیف نشان داد که دنباله $$ass_r, r/overline{i}subseteqass_r, r/overline{i^{ ext{2}}}subseteqass_r, r/overline{i^{ ext{3}}}subseteqcdots$$ از ایدهآلهای وابسته، صعودی و ایستا به یک مجموعه میباشد که آن را با $ov...
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