Is Computing Using Electromagnetic Waves Possible?

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Discussion Overview

The discussion revolves around the feasibility of computing using electromagnetic (EM) waves, exploring theoretical concepts and potential applications. Participants consider whether EM waves could function as logic gates and how this might relate to existing computing paradigms, including optical and quantum computing.

Discussion Character

  • Exploratory
  • Technical explanation
  • Debate/contested

Main Points Raised

  • Some participants propose that a sealed box with internal EM pulses could mold waveforms through interference to act as logic gates for computation.
  • Others mention that while optical computing is somewhat related, there is little evidence of computers designed solely with electromagnetic waveforms as logic elements.
  • A participant notes that current quantum computer prototypes utilize radio pulses to manipulate quantum states, emphasizing that these effects are more mechanical than purely electromagnetic.
  • One participant suggests that using photons could theoretically speed up computation, likening the use of EM waves to gears in a clock.
  • There is a reference to analog computers as a historical context, though it is not directly aligned with the main inquiry about EM wave computing.
  • A later reply questions whether all computing inherently uses EM waves, indicating a broader interpretation of the topic.

Areas of Agreement / Disagreement

Participants express varying degrees of uncertainty regarding the practicality and existing research into computing with electromagnetic waves. No consensus is reached on the feasibility or implementation of such a concept.

Contextual Notes

Participants acknowledge limitations in the details provided about the proposed concepts, and there is a lack of clarity on how EM waves could be effectively utilized in computation compared to existing models like optical and quantum computing.

mustang19
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Hi all,

I was just wondering if there has been research into computing using electromagnetic waves. It seems to me like a sealed off box with internal EM pluses could be used to mould waveforms through interference, which would act as logic gates to provide useful computational results. Would this be in any way practical?
 
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mustang19 said:
Hi all,

I was just wondering if there has been research into computing using electromagnetic waves. It seems to me like a sealed off box with internal EM pluses could be used to mould waveforms through interference, which would act as logic gates to provide useful computational results. Would this be in any way practical?

Here is an introduction to Optical Logic, which is the closest thing that I kinow of to what you are asking...

http://en.wikipedia.org/wiki/Optical_computing

.
 
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Thanks for the link. Optical computing is a somewhat related idea, but I've never heard of someone trying to design a computer using electromagnetic waveforms alone as logic elements.
 
AFAIK, there is no computer implementation relying primarily on EM waves for logic operations though your description is lacking in detail.

Some Quantum Computers prototypes have used radio pulses to manipulate a quantum state, but that is purely mechanical, the Quantum effects being far more relevant.

Enhancements to computer performance fall into one of two categories:

1. Optimization
Uses faster or more efficient signal processing, parallel cores, etc (e.g. Optical Computing).
2. Computational shift
Introduces a new computational model that is inherently superior (e.g. Quantum Computing). Note that traditional computers are more suitable for solving problems in the complexity class P, whereas Quantum Computers can solve the more difficult problems in the class BQP.

Which of the two did you have in mind?
 
I was thinking more #1. Photons travel faster than anything else, so using photon waves alone, without any physical intermediary like refractors, could speed up computation a little. If EM waves could be put to use like gears in a clock, then the waves would be the gears and the clock-hand would be the computational result.

It's just a silly conjecture, sorry I can't provide any more explanation than that.
 
Last edited:
mustang19 said:
I was just wondering if there has been research into computing using electromagnetic waves. It seems to me like a sealed off box with internal EM pluses could be used to mould waveforms through interference, which would act as logic gates to provide useful computational results. Would this be in any way practical?
Doesn't all computing use EM waves?
 

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