Attojoule Optoelectronics for Low-Energy Information Processing and Communications: a Tutorial Review · HackerPapers discussions

Attojoule Optoelectronics for Low-Energy Information Processing and Communications: a Tutorial Review — mentioned by morphle

Fri, 29 Mar 2024 15:09:18 GMT

Yes, basic physics shows [1] that we can use (free space) optics instead of wires inside chips. This will improve energy use and speeds by 3 orders of magnitude. Next to a transistor you put a photon detector. You can flip the transistor with the voltage from the photon detector by sending 10000 photons (or less). Pictures of such systems in the slides [2]. We can beam billions of optical channels with different frequencies in parallel across chips, exabits (yettabits, yottabits) per second. We will not compute with photons tough [4][5], the optical structures are to large and it would only…

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Attojoule Optoelectronics for Low-Energy Information Processing and Communications: a Tutorial Review — mentioned by morphle

Sat, 09 Mar 2024 18:10:38 GMT

The arguments from the abstract of this paper have been refuted by Attojoule Optoelectronics for Low-Energy Information Processing and Communications: a Tutorial Review [1] and several other papers. [1] https://arxiv.org/abs/1609.05510

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Attojoule Optoelectronics for Low-Energy Information Processing and Communications: a Tutorial Review — mentioned by morphle

Thu, 29 Feb 2024 18:49:39 GMT

I studied ultra wideband decades before they started to write papers refering to UWB standard definitions [1] so I might be out of tune (pun intended) with current definitions. A transceiver could use attosecond 10^−18, femtosecond 10^−15 picosecond 10^−12 or nanosecond 10^−9 pulses at very irregularly intervals. That seems (almost) random to any observer but not to a receiver which has pre-agreed those irregularly intervals with the transmitter (for example with quantum key distribution, with entangled particles). The receiver measures if there was a signal or not. It does not use power…

Paper and discussion history. A mention is not an endorsement.