M-theory
M-theory is a theory in physics that unifies all consistent versions of superstring theory. In string theory, the point-like particles of particle physics are replaced by one-dimensional objects called strings. One of the vibrational states of a string gives rise to the graviton, a quantum mechanical particle that carries gravitational force.
About M-theory in brief
M-theory is a theory in physics that unifies all consistent versions of superstring theory. Edward Witten first conjectured the existence of such a theory at a string- theory conference in the spring of 1995. String theory is a theoretical framework that attempts to reconcile gravity and quantum mechanics. In string theory, the point-like particles of particle physics are replaced by one-dimensional objects called strings. One of the vibrational states of a string gives rise to the graviton, a quantum mechanical particle that carries gravitational force. The different theories allow different types of strings, and the particles that arise at low energies exhibit different symmetries. In some cases, physicists consider modeling spacetime in a different number of dimensions, such as in condensed matter theories. There are also situations where there are two or three spacetime theories for describing matter in condensed physics. In spite of the fact that the universe is well described by four-dimensional spacetime, there are several reasons why physicists consider theories of condensed physics in a number of different dimensions to be more tractable, and more easily tractable and easily understood by the general public. Theories of condensed matter are also useful for describing condensed matter phenomena in two and three dimensions, and for describing the universe in two or five. Theory of condensedmatter is useful in describing condensedmatter phenomena in three or four dimensions, as well as in other dimensions. The theory of quantum gravity is needed to reconcile general relativity with the principles of quantum mechanics, but difficulties arise when one attempts to apply the usual prescriptions of quantum theory to the force of gravity.
This theory, like its string theory predecessors, is an example of a quantum theory of gravity and describes a force just like the familiar gravitational force subject to the rules ofQuantum mechanics. Each of these five string theories arises as a special limiting case of M-theorism, which is based on matrix theory or the AdSCFT correspondence. In a given version of string theory there is only one kind of string, which may look like a small loop or segment of ordinary string, and it can vibrate in different ways. On distance scales larger than the string scale, a string will look just like an ordinary particle, with its mass, charge, and other properties determined by the vibration state of the string. In this way, all of the different elementary particles may be viewed as vibrating strings, One of these types of string theories is type I, which includes both open strings and closed strings, while types IIA and IIB include only closed strings. So far none has been verified to give rise to physics as observed in high-energy physics experiments, but it could be used to develop a unified theory of all the fundamental forces of nature. The true meaning of the title should be decided when a more fundamental formulation of the theory is known. According to Witten, M should stand for \”magic\”, \”mystery\” or \”membrane\” according to taste.
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This page is based on the article M-theory published in Wikipedia (as of Dec. 06, 2020) and was automatically summarized using artificial intelligence.
