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  1. In contrast to all other modern theories of fundamental interactions, general relativity is a classical theory: it does not include the effects of quantum physics. The quest for a quantum version of general relativity addresses one of the most fundamental open questions in physics.

  2. Jan 01, 2007 · And since Einstein's general theory is partly defined by a declared reduction to SR physics (which is supposed to live on inside GR1916 as a limiting case), the 1916 general theory is logically ...

  3. May 03, 2002 · As the theory of the atom, quantum mechanics is perhaps the most successful theory in the history of science. It enables physicists, chemists, and technicians to calculate and predict the outcome of a vast number of experiments and to create new and advanced technology based on the insight into the behavior of atomic objects.

  4. Mar 01, 2014 · In the absence of a coherent theory of quantum gravity there is no accepted way of handling such a superposition as a separation (or bifurcation) of space–time geometry, or in any other way. Indeed the basic principles of Einstein's general relativity begin to come into profound conflict with those of quantum mechanics , . Some form of OR is ...

  5. en.wikipedia.org › wiki › Big_BangBig Bang - Wikipedia

    The Big Bang theory offers a comprehensive explanation for a broad range of observed phenomena, including the abundances of the light elements, the CMB, large-scale structure, and Hubble's law. The theory depends on two major assumptions: the universality of physical laws and the cosmological principle.

  6. Nov 02, 2021 · “Modern physics” relates to theories of physics that began development in the early 20th century, Quantum Mechanics and Einstein’s theories of relativity being prime examples.

  7. Oct 08, 2001 · A second point is the question whether the theoretical structure or the quantitative laws of quantum theory can indeed be derived on the basis of the uncertainty principle, as Heisenberg wished. Serious attempts to build up quantum theory as a full-fledged Theory of Principle on the basis of the uncertainty principle have never been carried out.