Quotes About Theory

The granular discrete structure of space resolves the difficulties of the quantum theory of fields, eliminating the infinities by which it is afflicted.

A calculation, in fact, demonstrates that without nodes, physical space has no volume. In other words, it is in the nodes of the graph, not in the lines, that the volume of space "resides." The lines "link together" individual volumes sitting at the nodes.

Richard Feynman, who more than anyone has known how to juggle with the theory, has written: "I think I can state that nobody really understands quantum mechanics.

I want a theory of physics that accounts for the structure of the universe, that clarifies what it is to be an observer in the universe, not a theory that makes the universe depend on me observing it.

The discovery of quantum theory, I believe, is the discovery that the properties of any entity are nothing other than the way in which that entity influences others. It exists only through its interactions. Quantum theory is the theory of how things influence each other. And this is the best description of nature that we have.54

Proper time" depends not only on where you are and your degree of proximity to masses; it depends also on the speed at which you move. It's a strange enough fact in itself, but its consequences are extraordinary. Hold on tight, because we are about to take

But it is not only space that curves: time does too. Einstein predicts that time on Earth passes more quickly at higher altitude, and more slowly at lower altitude.

order to these baffling aspects of behavior in the atomic world, and to build from it a coherent theory. In 1925

Ama bükülen yaln?zca uzay de?ildir; zaman da bükülür. Einstein zaman?n yüksekteki bir konumda, dünyaya yak?n, daha alçak bir durumdan daha h?zl? akt???n? öngörür.

Einstein'?n denklemi uzay?n dura?an olamayaca??n?, geni?lemek zorunda oldu?unu gösterir. (...) Ayn? denklem geni?lemenin minicik ve çok s?cak genç bir evrenin patlamas?yla tetiklendi?ini de öngörür: Bu da Büyük Patlama'd?r.

This is a tremendous result: on the one hand, taking quantum mechanics into account resolves the problems generated by the infinities of Einstein's theory of gravity, that is to say, the singularities. On the other, taking gravity i to account solves the problems generated by quantum field theory, that is to say, the divergences. Far from being contradictory, as they at first seemed, the two theories each offer the solution to the problems posed by the other!

Max Planck s?cak bir kutu içinde denge durumunda bulunan elektrik alan?n? hesaplar. Bunun için küçük bir hileye ba?vurur: Alan?n enerjisinin "kuantumlar" yani enerji paketçikleri, topaklar? biçiminde da??ld???n? varsayar.

Black hole heat is directly connected to loop quantum gravity's fluctuations of the atoms of space.

Bir ???k ???n?n?n enerjisinin uzayda kesiksiz biçimde yay?lmad???, uzay?n noktalar?nda yer alan belirli say?da "enerji kuantumlar?ndan" olu?tu?u, bölünmeden hareket ettikleri ve bir birim olarak üretilip so?urulduklar? varsay?m?n? göz önünde tutuyorum.

Ama bütün çocuklar gibi kuram da kendi yoluna gitti, Einstein da onu art?k tan?yamaz oldu. 1910'lar ve 1920'ler boyunca büyümesine yön verense Danimarkal? Niels Bohr oldu. I??k enerjisi gibi atomlardaki elektronlar?n belirli bir enerjiyle yaln?zca bir atom yörüngesinden di?erine "s?çrayabilece?ini", bunu yaparken de bir foton sald???n? veya so?urdu?unu anlayan odur.

The time indicated by a particular clock measuring a particular phenomenon is called "proper time" in physics.

This is how time is depicted in Einstein's general theory of relativity. His equations do not have a single "time"; they have innumerable times.

What happens between one interaction and the next is not mentioned in the theory. It does not exist.

What quantum theory describes, then, is the way in which one part of nature manifests itself to any other single part of nature.

This clarified, here is the point: it is possible to think of quantum physics as a theory of information (in the sense outlined) that systems have about one another.

Without clues, we search in the wrong directions. Without evidence, a theory is not reliable.

I think that the obscurity of the theory is not the fault of quantum mechanics but is rather due to the limited capacity of our imagination. When we try to "see" the quantum world, we are rather like moles used to living underground, to whom someone is trying to describe the Himalayas. Or like the men imprisoned at the back of Plato's cave.

Therefore, the first meaning of quantum mechanics is the existence of a limit to the information that can exist within a system: a limit to the number of distinguishable states in which a system can be. This limitation upon infinity, this granularity of nature glimpsed by Democritus, is the first central aspect of the theory. Planck's constant h measures the elementary scale of this granularity.

And it's here that Einstein's extraordinary stroke of genius occurs, one of the greatest flights in the history of human thinking: what if the gravitational field turned out actually to be Newton's mysterious space? What if Newton's space was nothing more than the gravitational field? This extremely simple, beautiful, brilliant idea is the theory of general relativity.