Listening conditions affect bilinguals’ speech perception, but relatively little is known about the effect of the combination of several degrading listening conditions. We studied the combined effect of speech rate and background noise on bilinguals’ speech perception in their L1 and L2. Speech perception of twenty Israeli university students, native speakers of Arabic (L1), with Hebrew as L2, ...

Coherent light, as produced by lasers, gives rise to an intrinsic noise, known as quantum noise, optical noise or shot noise. AlphaEta is a protocol which exploits this physical phenomenon to obtain secure data encryption or key distribution over a fiber-optic channel in the presence of an eavesdropper. In this paper we focus on the cryptographic aspects of AlphaEta and its variants. Moreover, ...