Types of Noise in Amplifiers (Amplifiers #11)

[@comeflywithme1694]

Clear, easy to understand, super helpful. Thank you.

[@SergiuCosminViorel]

Am aware, and always was aware that there must be something in every mechanism, to make avoid free energy, so to speak. However, i thought that the up limit for the white noise is not that mechanism that you mention, but another. I thought that the noise avoids generating power, increasing power, by self compensating. Noise is not building up, in any scheme, but it is random accidents, and randomness, more precisely concurent randomness, is self limiting. What generates the consistency of the RMS noise value, is not the noise, but something very different. The engine of noise, speaking energy, is not noise, but the opposite. We have noise because of the non-noise, and then the randomness of the non-noise, but randomness in itself is not energy, it is just another aspect of existence. The non-random quantity decides the level of random, of noise. By the way, when talking nature, never reduce it to voltages, as voltage is fiction, nature has no voltages, it has energy, randomness, and also curents, but not in the sense of amperage, only in the sense of flux of real or virtual particles, and of particle spread.

[@jamegumb7298]

Whatever you are having, gimme a few grams of that.

[@SergiuCosminViorel]

@@jamegumb7298 uncommon intuition and ability to make strange things converge

[@dohaelshenawy2597]

How can we do the addition of the noice and the graph as you do???? Plz I have a project😢😢

[@jamegumb7298]

1: Thermal noise. So keep it as cool as possible. Wire heated by its environment, so least amount of heat, thickest of cables. 2: Shot noise. How to get rid of this? 3: External noise. So good shielding. Other components so mind the layout. Or: least amount of possible parts? Is it at aall posible to filter out white noise anywhere to make a lower noise floor? Or is that a stupid idea?

[@adanner]

About the shot noise, it's sort of possible to get past it through squeezed states (trading off one quantum uncertainty for another).

[@SergiuCosminViorel]

@@adanner that is also myth, as a qubit is only a bit, a classical bit. Quantum degeneracy is a perfect mechanism, something they overlook when they advertise the so called "quantum processing". In anything you can call quantum, data is degenerated, and no "entanglement" can fully compensate for that. You use entanglement, then entanglement manifests overall degeneracy. You cannot clean up that noise, can only get closer and closer to a limit prescribed by nature, but the limit stays there, you cannot move it. You end up fighting not for one dB, but for an infinitesimal fraction of a dB.