Tuesday, December 31, 2019

Schrodinger's Cat

This is from 100 years ago.... are we really moving forward??
The physicist Pascual Jordan, who worked with quantum guru Niels Bohr in Copenhagen in the 1920s, put it like this: "observations not only disturb what has to be measured, they produce it… We compel [a quantum particle] to assume a definite position." In other words, Jordan said, "we ourselves produce the results of measurements."




Schrödinger's cat is a thought experiment, sometimes described as a paradox, devised by Austrian physicist Erwin Schrödinger in 1935, though the idea originated from Albert Einstein. It illustrates what he saw as the problem of the Copenhagen interpretation of quantum mechanics applied to everyday objects.

The human mind and quantum physics

This is from an old post by Philip Ball, 16 February 2017. Almost three years.
But I think the article makes some valid points

Beginning of post:
The American physicist Richard Feynman said this about the notorious puzzles and paradoxes of quantum mechanics, the theory physicists use to describe the tiniest objects in the Universe. But he might as well have been talking about the equally knotty problem of consciousness.

Some scientists think we already understand what consciousness is, or that it is a mere illusion. But many others feel we have not grasped where consciousness comes from at all.

For one thing, the mind seemed, to the great discomfort of physicists, to force its way into early quantum theory. What's more, quantum computers are predicted to be capable of accomplishing things ordinary computers cannot, which reminds us of how our brains can achieve things that are still beyond artificial intelligence. "Quantum consciousness" is widely derided as mystical woo, but it just will not go away.

Quantum mechanics is the best theory we have for describing the world at the nuts-and-bolts level of atoms and subatomic particles. Perhaps the most renowned of its mysteries is the fact that the outcome of a quantum experiment can change depending on whether or not we choose to measure some property of the particles involved.

When this "observer effect" was first noticed by the early pioneers of quantum theory, they were deeply troubled. It seemed to undermine the basic assumption behind all science: that there is an objective world out there, irrespective of us. If the way the world behaves depends on how – or if – we look at it, what can "reality" really mean?

Today some physicists suspect that, whether or not consciousness influences quantum mechanics, it might in fact arise because of it. They think that quantum theory might be needed to fully understand how the brain works.

Might it be that, just as quantum objects can apparently be in two places at once, so a quantum brain can hold onto two mutually-exclusive ideas at the same time?

These ideas are speculative, and it may turn out that quantum physics has no fundamental role either for or in the workings of the mind. But if nothing else, these possibilities show just how strangely quantum theory forces us to think.

From: http://www.bbc.com/earth/story/20170215-the-strange-link-between-the-human-mind-and-quantum-physics

None of us get out of being human alive!

It looks like it's been a LONG time since I have added to my Blogger posts.
It has been a rough year!! I got sick in 2018 and sicker in 2019. I have been diagnosed with Metastatic Breast Cancer, they say I have two to five years. It has almost been a year already and I am no where nearer being ready to go than I was in February this year.
Any way, I am trying to sort through my papers and belongings so my kids and my husband don't have to when I am gone.
Peace be with you all!