Abstract: In this letter, we conduct an experiment of quantum noise stream cipher scheme based on 3-channel-QAM mapping and DFTs-OFDM in optical back-to-back and 160km standard single mode fiber. The ...

The broad rally for the S&P 500 index has continued so far in 2025, with a 2% increase for the large-cap U.S. benchmark index through last week. This has some investors continuing to worry that ...

Meanwhile, if you want to stream something without paying a rental fee, twisting-thriller “Blink Twice” hits Prime Video and comedy “Saturday Night” lands on Netflix. The latter is the ...