A Brief History of Quantum Gravity

459px-Einstein_patentofficeProblems cannot be solved by thinking the way we thought when we created them. – Albert Einstein

The incompatibility of quantum mechanics and gravity is seen as a big issue by all physicists. The Planck length

contains the gravitational constant G and Planck’s quantum h, and therefore it is the scale at which “quantum effects of gravity” are supposed to become important. But that is all what physicists have found out about quantum gravity. No theory exists, let alone any evidence of an observable effect. You’ll find the topic somewhat more elaborated in Hawking’s book A Briefer History of Time. The chapter about quantum gravity is comprised of 21 pages, of which almost 20 pages are devoted to repeating gravitation and quantum theory. Andrzej Staruszkiewicz, editor of a renowned physics journal, commented on this topic:

It is tempting to assume that when so many people write about “quantum gravity”, they must know what they are writing about. Nevertheless, everyone will agree that there is not a single physical phenomenon whose explanation would call for “quantum gravity”.

The fact that no theory for quantum gravity exists does not preclude the existence of numerous experts of quantum gravity. According to the science historian Federico di Trocchio, such a „second category of experts“ consists of those whose knowledge will become immediately obsolete once the riddles scientists are studying have been understood. They make their living on the problems that are being tackled unsuccessfully, or, like some string theorists, make ridicuous claims of having explained „the existence of gravity“.

There is simply no theory that combines general relativity with quantum theory. All theoretical recipes cooked up until now have failed, as for instance the so-called ADM formalism, a reformulation of Einstein’s equations of general relativity. It has gotten nowhere, but it is nevertheless considered a bible leading the way. Another great couturier of theories is Abhay Ashtekar, who regularly summarizes the accomplishments of the Loop Quantum Gravity he fathered. His résumé:“it is interesting”.Actually, it is interesting for 30 years now. Not exactly news anymore. But I fear that we will have a long wait for such a Theory of Everything that eventually unifies quantum gravity and general relativity. Success just comes in different flavors.

Theoretical physicists seem to have deployed a number of assumptions that block deeper reflection. For instance, there is the belief in an unalterable gravitational constant G. Solely for this reason, all theoretical attempts trudge through the Planck length’s eye of a needle and come across as trying to push a door which is labeled “pull”.

The essence of the problem – and I think the only thing worth worrying about – is just this: The ratio of the electric and gravitational force of a proton and an electron that form a hydrogen atom is a huge number and nobody knows where it comes from. Period. The only idea with respect to this riddle came from Paul Dirac, the Large Number Hypothesis. – more about that later. Where does that number, 1039 , come from? Beware wannabe unifiers: either you explain it or you had better shut up.

(with quotes from „Bankrupting Physics“ and „The Higgs Fake“)

4 thoughts on “A Brief History of Quantum Gravity

  1. Dear Alexander,
    Let me inform you that I know what we measure as mass. I know also what we measure as speed of light. In quantum time space the max c~= 6,28 x 10 ^8 m/s
    and mean (+/-) is 3,14 X 10^8 m/s because et each 3,14 x 10^-8 m information loses time for processing , what we measure is c=~3 x 10^8 m/s. Also because of what we really measure as mass the equation E=mc^2 has nothing to do with realty. And please !!!! no! Big Bang, no! “strings” , no! “standard model” no” dark matter and dark energy / this is the same matter and energy you see only..?.I know! There are good experiments and results but because one does not know what one talking about the interpretation is science fiction. It is 500 years from Copernicus Revolution. I see reality as it is, not as one wishes. Please contact me,
    Remigiusz Zarosinski

  2. Sehr geehrter Herr Dr. Unzicker,

    Sie gestatten mir zum Thema Quantengravitation einige Gedanken in deutscher Sprache.

    An erster Stelle möchte ich betonen, dass den Worten von Prof. Pavel Kroupa auf der Rückseite ihres Buches „Auf dem Holzweg durchs Universum“ nichts hinzugefügt werden braucht.

    In Blog schreiben Sie, dass die Unvereinbarkeit von Quantenmechanik und Gravitation als großes Problem von allen Physikern gesehen wird.

    Quantenphysik und Gravitation sind nicht unvereinbar miteinander. Gravitation funktioniert quantenphysikalisch. Nur ist es eben so, dass von den Quantenphysikern der Teil, der die Trägheit und Schwere beschreibt, noch nicht entwickelt wurde.

    Unter primärer Beachtung und exakter Würdigung des materiellen Befundes wird man den Ansatz dazu in der RT finden, sofern man dort zu suchen bereit ist.

    Das erfordert allerdings, neue Wege zu beschreiten – das, was Sie in Ihren Büchern als Ausweg aus der Krise sehen. Aber auch Sie selbst müssten das wollen!

    Mit freundlichen Grüßen
    Joachim Blechle

  3. Here is an interesting connection between classical and quantum…


    “Non-Local Quantum Theory is Fourier-Transformed Classical Mechanics. Planck’s Constant as Adiabatic Invariant Characterized by Hubble’s and Cosmological Constants

    Authors: Anton Lipovka

    In the present work we suggest a non-local generalization of quantum theory which includes the quantum theory as a particular case. On the basis of the idea, that Planck constant is an adiabatic invariant of free electromagnetic field, we calculate the value of Plank constant from first principles, namely from the geometry of our Universe. The basic nature of the quantum theory is discussed. The nature of the dark energy is revealed. Within the framework of the Einstein – Cartan theory, the expression for the blackbody spectrum is obtained.

    Comments: 17 Pages. Published in journal: Invurnus (2013), v.8(2) pp. 29-37″

  4. Have you given much consideration to the Fatio-Lesage theory of “push gravity,” also known as “shadow gravity”? It constitutes a genuine form of quantum gravity, but had several problems (detailed by Maxwell and Poincare) that led it to be abandoned. But, building on some seminal ideas of a late friend of mine (Frank Meno), I believe I have been able to show that a workable form of push/shadow gravity exists, that also happens to constitute a viable “theory of everything.” See viXra.org/abs/1311.0060.

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