Random picture thread

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who's got crabs (not me )

 

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[SlingLow]

 

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[davek]

 

[davek]

 

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[davek]

 

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[guy gadbois]

Quantum field theory suggests that electromagnetic fields naturally fluctuate, and these fluctuations can be harnessed as a source of perfect randomness. Many potential applications of randomness rely on controllable probability distributions. We show that vacuum-level bias fields injected into multistable optical systems enable a controllable source of quantum randomness, and we demonstrated this concept in an optical parametric oscillator (OPO). By injecting bias pulses with less than one photon on average, we controlled the probabilities of the two possible OPO output states. The potential of our approach for sensing sub–photon-level fields was demonstrated by reconstructing the temporal shape of fields below the single-photon level. Our results provide a platform to study quantum dynamics in nonlinear driven-dissipative systems and point toward applications in probabilistic computing and weak field sensing.

https://www.science.org/doi/10.1126/science.adh4920

"perfect randomness" is a bit of an oxymoron imho. I do not pretend to understand all of this, but I maintain that if we had enough information, we would see that basically nothing is random, but predictable and follows a design.
But what do i know?

 

[polywideblock]

before and after

 

[65Bel]

Quantum field theory suggests that electromagnetic fields naturally fluctuate, and these fluctuations can be harnessed as a source of perfect randomness. Many potential applications of randomness rely on controllable probability distributions. We show that vacuum-level bias fields injected into multistable optical systems enable a controllable source of quantum randomness, and we demonstrated this concept in an optical parametric oscillator (OPO). By injecting bias pulses with less than one photon on average, we controlled the probabilities of the two possible OPO output states. The potential of our approach for sensing sub–photon-level fields was demonstrated by reconstructing the temporal shape of fields below the single-photon level. Our results provide a platform to study quantum dynamics in nonlinear driven-dissipative systems and point toward applications in probabilistic computing and weak field sensing.

https://www.science.org/doi/10.1126/science.adh4920

Fred Sanford needs translation of cop-speak . . .

 

[69conv]

https://www.xtool.com/products/xtoo...SfBymH1DMo8mY0XMF2sbvEYK-HcjSgIRoCGxUQAvD_BwE

I don't think you could do that with a laser on metal, but I may be wrong.

I have one and its awesome!

 

[padam]

It will e

https://www.xtool.com/products/xtoo...SfBymH1DMo8mY0XMF2sbvEYK-HcjSgIRoCGxUQAvD_BwE



I have one and it’s awesome!

It will engrave in steel like that?

We have a laser at work and I have trouble getting it to engrave a bar code properly.

 

[dadsbee]

All waxed up, Wife bribed me with a Candy Cane.. LOL