How Quantum Mechanics Screws with our Perception of Reality Quantum Mechanics and Reality, by Thomas J McFarlane © Thomas J. McFarlane 1995www.integralscience.org Most traditional [spiritual] paths were developed in prescientific cultures. Consequently, many of their teachings are expressed in terms of cosmologies or world views which we no longer find relevant. . .The question then naturally arises: Is it possible to incorporate both science and mysticism into a single, coherent world view? The primary purpose of this essay is to explain how quantum mechanics shows that the materialistic common sense notion of reality is an illusion, i.e., that the objective existence of the world is an illusion. The appearance of an objective world distinguishable from a subjective self is but the imaginary form in which Consciousness Perfectly Realizes Itself. Now listen to Niels Bohr, the pioneer of 20th century physics: An independent reality, in the ordinary physical sense, can neither be ascribed to the phenomena nor to the agencies of observation. [3] To quote Bohr and Heisenberg once more,
Beauté et esthétique mathématique Simon Diner Il faut se garder du hasard comme du calcul Peter MONDRIAN Deux choses menacent le monde, l’ordre et le désordre. Ce que je cherche avant tout est l’expression Henri MATISSE Le problème des rapports entre beauté, harmonie et propriétés mathématiques a été largement posé et illustré dans l'Antiquité. Le rôle, contesté ou non, du nombre d'or, l'utilisation des tracés régulateurs par les peintres, les problèmes de la perspective, et la pratique et la théorie de l'architecture sont les manifestations les plus connues de recettes mathématiques pour l'obtention de la beauté. Il y a là un immense domaine où l'art et la mathématique se côtoient, s'observent, se fécondent mutuellement. Brillamment illustrée par Albrecht Dürer et Leonardo da Vinci cette synergie entre art et science va souffrir de l'isolement progressif des deux domaines, au point de ne pas constituer aujourd'hui une zone bien explorée et bien intégrée de la culture. L’esthétique n’est pas seulement l’étude de la beauté.
Quantum entanglement Quantum entanglement is a physical phenomenon that occurs when pairs or groups of particles are generated or interact in ways such that the quantum state of each particle cannot be described independently – instead, a quantum state may be given for the system as a whole. Such phenomena were the subject of a 1935 paper by Albert Einstein, Boris Podolsky and Nathan Rosen,[1] describing what came to be known as the EPR paradox, and several papers by Erwin Schrödinger shortly thereafter.[2][3] Einstein and others considered such behavior to be impossible, as it violated the local realist view of causality (Einstein referred to it as "spooky action at a distance"),[4] and argued that the accepted formulation of quantum mechanics must therefore be incomplete. History[edit] However, they did not coin the word entanglement, nor did they generalize the special properties of the state they considered. Concept[edit] Meaning of entanglement[edit] Apparent paradox[edit] The hidden variables theory[edit]
Quantum physics says goodbye to reality Some physicists are uncomfortable with the idea that all individual quantum events are innately random. This is why many have proposed more complete theories, which suggest that events are at least partially governed by extra "hidden variables". Now physicists from Austria claim to have performed an experiment that rules out a broad class of hidden-variables theories that focus on realism -- giving the uneasy consequence that reality does not exist when we are not observing it (Nature 446 871). Some 40 years ago the physicist John Bell predicted that many hidden-variables theories would be ruled out if a certain experimental inequality were violated – known as "Bell's inequality". In his thought experiment, a source fires entangled pairs of linearly-polarized photons in opposite directions towards two polarizers, which can be changed in orientation. Bell's trick, therefore, was to decide how to orient the polarizers only after the photons have left the source.
Figures for "Impossible fractals" Figures for "Impossible fractals" Cameron Browne Figure 1. The tri-bar, the Koch snowflake and the Sierpinski gasket. Figure 2. Two iterations of an impossible snowflake (with acute and obtuse generators shown). Figure 3. Figure 4. Figure 5. Figure 6. Figure 7. Figure 8. Figure 9. Figure 10. Figure 11. Figure 12. Figure 13. 45° Pythagorean tree, balanced 30° Pythagorean tree and extended tri-bar. Figure 14. Figure 15. Figure 16.
The Search For The History Of The Universe's Light Emission The light emitted from all objects in the Universe during its entire history - stars, galaxies, quasars etc. forms a diffuse sea of photons that permeates intergalactic space, referred to as "diffuse extragalactic background light" (EBL). Scientists have long tried to measure this fossil record of the luminous activity in the Universe in their quest to decipher the history and evolution of the Cosmos, but its direct determination from the diffuse glow of the night sky is very difficult and uncertain. Very high energy (VHE) gamma-rays, some 100,000,000,000 times more energetic than normal light, offer an alternative way to probe this background light, and UK researchers from Durham University in collaboration with international partners used the High Energy Stereoscopic System (HESS) gamma-ray telescopes in the Khomas Highlands of Namibia to observe several quasars (the most luminous VHE gamma-ray sources known) with this goal in mind. Source: PPARC
Podcast science 126 – L’Impensable Hasard: la téléportation quantique avec Nicolas Gisin Rating: 4.8/5 (5 votes cast) L’intro de Nicotupe Nicolas Gisin présente dans son livre un concept que je ne connaissais personnellement pas : l’intrication quantique. Bien comprendre ce que c’est et pourquoi c’est révolutionnaire (oui, vous m’avez convaincu M. Commençons par quantique : on en a déjà parlé ici. Le concept d’intrication seul va vous paraître simpliste. On en arrive alors au sujet de ce livre, l’intrication quantique. Nicolas Gisin. Le livre de Nicolas Gisin prend un long moment à expliquer ce nouveau concept par le biais d’un jeu, le jeu de Bell, où l’on ne peut pas gagner sans intrication. Tout au long de ce livre est discuté le concept de non-localité. L’interview de la semaine Nous recevons Nicolas Gisin, professeur à l’Université de Genève, auteur de l’excellent livre “L’Impensable Hasard: non-localité, téléportation et autres merveilles quantiques” publié à l’automne 2012 chez Odile Jacob. » Retranscription de l’interview (merci Leo pour le boulot!) Le son de la semaine