Best 87 quotes in «quantum mechanics quotes» category

A university student attending lectures on general relativity i the morning and others on quantum mechanics in the afternoon might be forgiven for thinking that his professors are fools, or have neglected to communicate with each other for at least a century.

Quantum mechanics makes absolutely no sense.

A mathematician is an individual who proves his beliefs with equations.

Another very good test some readers may want to look up, which we do not have space to describe here, is the Casimir effect, where forces between metal plates in empty space are modified by the presence of virtual particles. Thus virtual particles are indeed real and have observable effects that physicists have devised ways of measuring. Their properties and consequences are well established and well understood consequences of quantum mechanics.

A theory of reality must not only explain reality, but also knowledge about that reality because knowing reality is part of reality.

There are some things so serious you have to laugh at them.

All perception is the result of electrical impulses in the brain - the world of the individual is tantamount to a highly advanced computer running and analyzing programs in its working memory.

A universe of classical particles is devoid of knowledge because the universe can only be itself and not a representation of something else. If the universe was only composed of classical particles, then there would only be physical properties but no meanings. The idea that we can have information about an object without becoming that object is central to all knowledge.

Based upon quantum mechanics, our physical reality should not be solid. Most likely our physical reality is an elaborate illusion within our own consciousness and the collective consciousness of the Universe/God.

Calculate the fine structure constant from first principles.

But physics is like carpentry: Using the right tool makes the job easier, not more difficult, and teaching quantum mechanics without the appropriate mathematical equipment is like asking the student to dig a foundation with a screwdriver. (On the other hand, it can be tedious and diverting if the instructor feels obliged to give elaborate lessons on the proper use of each tool. My own instinct is to hand the students shovels and tell them to start digging. They may develop blisters at first, but I still think this is the most efficient and exciting way to learn.)

Beyond the corridor of our space-time there are infinite numbers of universes, each of them is governed by its own set of laws and physics.

Despite the earnest belief of most of his fans, Einstein did not win his Nobel Prize for the theory of relativity, special or general. He won for explaining a strange effect in quantum mechanics, the photoelectric effect. His solution provided the first real evidence that quantum mechanics wasn’t a crude stopgap for justifying anomalous experiments, but actually corresponds to reality. And the fact that Einstein came up with it is ironic for two reasons. One, as he got older and crustier, Einstein came to distrust quantum mechanics. Its statistical and deeply probabilistic nature sounded too much like gambling to him, and it prompted him to object that “God does not play dice with the universe.” He was wrong, and it’s too bad that most people have never heard the rejoinder by Niels Bohr: “Einstein! Stop telling God what to do.

Classical mechanics gave us a deterministic view of the world. Quantum mechanics, conversely, gives us a probabilistic view instead. According to Newton, if you know the cause af an event, you can predict the outcome. According to M.Born, you can only predict how likely that outcome will be.

Heisenberg's uncertainty relation measures the amount by which the complementary descriptions of the electron, or other fundamental entities, overlap. Position is very much a particle property - particles can be located precisely. Waves, on the other hand, have no precise location, but they do have momentum. The more you know about the wave aspect of reality, the less you know about the particle, and vice versa. Experiments designed to detect particles always detect particles; experiments designed to detect waves always detect waves. No experiment shows the electron behaving like a wave and a particle at the same time.

Einstein said that if quantum mechanics were correct then the world would be crazy. Einstein was right - the world is crazy.

Everything in the future is a wave, everything in the past is a particle.

Enlightenment is like quantum tunneling - when everyone sees walls and barriers, enlightened one sees infinite possibilities.

God does not play dice with the universe, we do

If we look upon the earth as a place where our 'higher selves' have come to learn, to experience, or even to be judged, then the splitting of realities that occurs with the many-worlds interpretation is merely an extension of these functions.

I find the idea quite intolerable that an electron exposed to radiation should choose of its own free will not only its moment to jump off but its direction. In that case I would rather be a cobbler, or even an employee in a gaming house, than a physicist.

I spoke of the 'real' mathematics of Fermat and other great mathematicians, the mathematics which has permanent aesthetic value, as for example the best Greek mathematics has, the mathematics which is eternal because the best of it may, like the best literature, continue to cause intense emotional satisfaction to thousands of people after thousands of years. These men were all primarily pure mathematicians; but I was not thinking only of pure mathematics. I count Maxwell and Einstein, Eddington and Dirac, among 'real' mathematicians. The great modern achievements of applied mathematics have been in relativity and quantum mechanics, and these subjects are, at present at any rate, almost as 'useless' as the theory of numbers. It is the dull and elementary parts of applied mathematics, as it is the dull and elementary parts of pure mathematics, that work for good or ill.

If you love a woman at the realm of "Quantum Mechanics", then you have known her at the events before Big Bang!

It is well understood in psychology that the subconscious mind has the dominant influence on human decision making, and therefore the pivotal role of the subconscious, for you to achieve success, is inescapable.

It seems clear that the present quantum mechanics is not in its final form. Some further changes will be needed, just about as drastic as the changes made in passing from Bohr's orbit theory to quantum mechanics. Some day a new quantum mechanics, a relativistic one, will be discovered, in which we will not have these infinities occurring at all. It might very well be that the new quantum mechanics will have determinism in the way that Einstein wanted.

It was about three o’clock at night when the final result of the calculation [which gave birth to quantum mechanics] lay before me. At first, I was deeply shaken. I was so excited that I could not think of sleep. So I left the house and awaited the sunrise on top of a rock. — Werner Heisenberg

Le equazioni della meccanica quantistica e le loro conseguenze vengono usate quotidianamente da fisici, ingegneri, chimici e biologi, nei campi più svariati. Sono utilissime per tutta la tecnologia contemporanea. Non ci sarebbero i transistor senza la meccanica quantistica. Eppure restano misteriose: non descrivono cosa succede a un sistema fisico, ma solo come un sistema fisico viene percepito da un altro sistema fisico. Che significa? Significa che la realtà essenziale di un sistema è indescrivibile? Significa solo che manca un pezzo alla storia? O significa, come a me sembra, che dobbiamo accettare l’idea che la realtà sia solo interazione?

Mankind has uncovered two extremely efficient theories: one that describes our universe's structure (Einstein's gravity: the theory of general relativity), and one that describes everything our universe contains (quantum field theory), and these two theories won't talk to each other.

Many scientists have tried to make determinism and complementarity the basis of conclusions that seem to me weak and dangerous; for instance, they have used Heisenberg's uncertainty principle to bolster up human free will, though his principle, which applies exclusively to the behavior of electrons and is the direct result of microphysical measurement techniques, has nothing to do with human freedom of choice. It is far safer and wiser that the physicist remain on the solid ground of theoretical physics itself and eschew the shifting sands of philosophic extrapolations.

Margrethe: And when all our eyes are closed, when even the ghosts have gone, what will be left of our beloved world? Our ruined and dishonoured and beloved world?

Miller believes, like many theists, that religion brings us beyond the bounds of materialism. (Ironically he insists on a material explanation [evolution] for our existence.) However, he fails to explain how religion does this. Will religion enable us to overcome Heisenberg's Uncertainty Principle? Will the secrets of Miller's black box of quantum mechanics be revealed? Will chance and chaos be things of the past? If religion can't help us solve these mysteries, take us beyond the bounds of our material understanding, then Miller's belief is just so much wishful thinking. However, during one of his more coherent, non-blonde moments, Miller makes one of his strongest points: Science only concerns itself with the material universe, so we must look beyond science if we are to have morals. I can't say I disagree. However, morals don't have to come from an imaginary sky daddy. They could be rationally conceived and practiced to create an orderly society. And, why should science limit itself to the material universe? Morals can be tried and tested; bad morals can be weeded out while good morals are preserved. Such has already happened. Consider the fact that most parents no longer obey God's command to kill their children when they misbehave. Yet, those same parents abstain from stealing and adultery.

More than ninety-five percent of your brain activity, as you consciously read this sentence, is being used by your subconscious mind.

Now he was…dust. To an outside observer, these ten seconds had been ground up into ten thousand uncorrelated moments and scattered throughout real time - and in model time, the outside world had suffered an equivalent fate. Yet the pattern of his awareness remained perfectly intact: somehow he found himself, “assembled himself” from these scrambled fragments. He’d been taken apart like a jigsaw puzzle - but his dissection and shuffling were transparent to him. Somehow - on their own terms - the pieces remained connected. Imagine a universe entirely without structure, without shape, without connections. A cloud of microscopic events, like fragments of space-time … except that there is no space or time. What characterizes one point in space, for one instant? Just the values of the fundamental particle fields, just a handful of numbers. Now, take away all notions of position, arrangement, order, and what’s left? A cloud of random numbers. But if the pattern that is me could pick itself out from all the other events taking place on this planet, why shouldn’t the pattern we think of as ‘the universe’ assemble itself, find itself, in exactly the same way? If I can piece together my own coherent space and time from data scattered so widely that it might as well be part of some giant cloud of random numbers, then what makes you think that you’re not doing the very same thing?

One can still say that quantum mechanics is the key to understanding magnetism. When one enters the first room with this key there are unexpected rooms beyond, but it is always the master key that unlocks each door.

One hundred thirty-seven is the inverse of something called the fine-structure constant. ...The most remarkable thing about this remarkable number is that it is dimension-free. ...Werner Heisenberg once proclaimed that all the quandaries of quantum mechanics would shrivel up when 137 was finally explained.

Our subconscious thought patterns collapses the quantum wave function and generates the reality. Meditation is streamline the thought patterns.

People are romantic idiots in the ideals of courtship. When a person says they have x, y, and z, their romantic counterpart takes x, y, and z as distinct points in a person's timeline-versus the imperceptibly messy distances in between (and the attributed entanglement). Thus resulting in happily never afters.

Physical reality does not require that we be pleased with its mechanism.

Quantum Machine Learning is defined as the branch of science and technology that is concerned with the application of quantum mechanical phenomena such as superposition, entanglement and tunneling for designing software and hardware to provide machines the ability to learn insights and patterns from data and the environment, and the ability to adapt automatically to changing situations with high precision, accuracy and speed.

Quantum fluctuations are, at their root, completely a-causal, in the sense that cause and effect and ordering of events in time is not a part of how these fluctuations work. Because of this, there seem not to be any correlations built into these kinds of fluctuations because 'law' as we understand the term requires some kind of cause-and-effect structure to pre-exist. Quantum fluctuations can precede physical law, but it seems that the converse is not true. So in the big bang, the establishment of 'law' came after the event itself, but of course even the concept of time and causality may not have been quite the same back then as they are now.

Quantum mechanics. What a repository, a dump, of human aspiration it was, the borderland where mathematical rigor defeated common sense, and reason and fantasy irrationally merged. Here the mystically inclined could find whatever they required and claim science as their proof. And for these ingenious men in their spare time, what ghostly and beautiful music it must be--spectral asymmetry, resonances, entanglement, quantum harmonic oscillators--beguiling ancient airs, the harmony of the spheres that might transmute a lead wall into gold and bring into being the engine that ran on virtually nothing, on virtual particles, that emitted no harm and would power the human enterprise as well as save it. Beard was stirred by the yearnings of these lonely men. And why should he think they were lonely? It was not, or not only, condescension that made him think them so. They did not know enough, but they knew too much to have anyone to talk to. What mate waiting down the pub or in the British Legion, what hard-pressed wife with job and kids and housework, was going to follow them down these warped funnels in the space-time continuum, into the wormhole, the shortcut to a single, final answer to the global problem of energy?

Quantum Mechanics can indeed be extremely complex to grasp, but when we talk about Consciousness, with decades of rigorous studies on the human brain we have realized that actually, there is no other phenomenon in the entire universe that is simpler than the majestic phenomenon of Consciousness. 'If you think you have a solution to the problem of consciousness, you haven’t understood the problem.' This age-old metaphysical and philosophical argument is strictly not true. If you are sufficiently clear-sighted enough, you can realize the problem itself was a matter of the past when we didn’t have insight into the neurological basis of consciousness. And today it is common knowledge in Neuroscience that, all mesmerizing features of the Human Mind, including the glorious Human Consciousness, are born from the tiny specks of jelly inside your head.

Quantum physics tells us that no matter how thorough our observation of the present, the (unobserved) past, like the future, is indefinite and exists only as a spectrum of possibilities. The universe, according to quantum physics, has no single past, or history. The fact that the past takes no definite form means that observations you make on a system in the present affect its past.

Seriousness of mind was a prerequisite for understanding Newtonian physics. I am not convinced it is not a handicap in understanding quantum theory.

She figured that the main problem in physics is physicists, that most of them are caught in a mind trap because they're so used to things being made of smaller things. So they instinctively believe that reality, at its most basic level, must be made up of and regulated by almost infinitely small elementary particles.

Some people, including Hawking, think that we may be able to understand the big bang or the big crunch (in particular, whether time has a beginning or an end at these events) when we have a satisfactory quantum theory of gravitation.

Her consciousness emerges within when the beast of the darkness allows them. This beast was a conjuration of the billion innocent souls lost to the structure of modernization. He was an archetype that transcended time and reality, a governing force as natural as nature itself, and yet this darkness was a new kind, born out of technology only apparent in the last few hundred years.

So much love, so much time.

The answer to the ancient question 'Why is there something rather than nothing?' would then be that ‘nothing’ is unstable.

The more we delve into quantum mechanics the stranger the world becomes; appreciating this strangeness of the world, whilst still operating in that which you now consider reality, will be the foundation for shifting the current trajectory of your life from ordinary to extraordinary.