Some notes, almost at random, on quantum gravity and black holes
On space-time holographic paradigm:
As our knowledge advances the universe displayed more questions, become the eternal questions that have become philosophers of all time, although the outlook has changed significantly. The basic principles that we see on quantum gravity tell us that space-time is not fundamental, eternal and still regard that we have always believed but emerges from a fundamental entity discrete (not continuous) and its own geometry must be inextricably linked causal relations between events.
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............................. Strange light
black hole:
A black hole that does not leave anything (the classic case), nor any demonstration outside this when swallows matter with a lot of entropy, suggests a way too easy to reduce the entropy of matter outside it. As the hole cast material with high entropy would decrease the entropy outside. Be holes through which to "escape" the implementation of the second law of thermodynamics, the natural tendency to increase of entropy or disorder (see final note on the entropy). From the Big Bang, an explosion in perfect order, the total entropy of the universe has continued to grow and so will be to call heat death.
The strange light of black holes, dubbed Hawking radiation was who discovered, back disorder, entropy, in our universe that continues to degrade without remedy until its final death (the energy of heat radiation energy is degraded). Without that dim light black holes gobble, besides matter disorder. The classical determinism makes them less real black but ... the reality, for once, is not as "black" as portrayed.
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winged dragons and black holes:
black holes, wormholes, tunnels in space-time, travel time, spatial and temporal distortion, all these concepts that seem taken from a science fiction novel, part ya serious science is currently investigating, and no longer a paradox of physics, pure and hard science, to address issues in the past, esoteric. The matter to which we cling as the most robust, simple and real that we are becoming, increasingly, something full of mystery and complexity. Quantum physics and the theory of general relativity it is presented as something always in motion that merges with its own space and time. As we try to understand their own entrails appears as forming a kind of complex entity that a Nobel prize has not hesitated to call: matter-space-time. The strange creatures that are the holes black, with aroused curiosity among physicists to better understand the world around us. In a way his black beauty has cast a ray of light on our understanding of the universe which we stand.
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Before the Big Bang, quantum foam :
Quantum mechanics prepares us in some way the mind to imagine the creation of the universe from nothing curd a pre-spacetime quantum fluctuations. Already in the present universe teaches us that the vacuum is a real hotbed of creation and annihilation of particles virtual, at distances of the order of Planck, it becomes the so called "froth" quantum spacetime. It is nothing of what is known and familiar to us as it has entered the realm of the unknown, until now, quantum gravity.
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Hawking Radiation:
As more we know about these exotic creatures stellar surprised us most. We discovered that emit radiation (Hawking called) and are not as black as we painted them, that the area of \u200b\u200bits event horizon entropy measures us all and we betray the magnitude of the external disorder that has engulfed, and die in a burst of brutal power. It seemed that they wanted us to hide everything, and yet we have things that without them we would never have known about the actual birth of the universe and its end, as their properties for years have been lighting up the direction we need to discover the future theory quantum gravity: the key to the past and the future of the universe.
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................ Gravitation
quantum critical distance and string theory:
A mathematical property as basic as the noncommutativity is the basis of what will be the future theory of gravitation quantum. The spatial lattice replacing the coordinates do not commute, ie if X is the quantum operator X and Y coordinate is the operator and the product is different from the product XY YX. The coordinates are simple classical real numbers that are switchable for granted because it does not matter to multiply the xy coordinates in that order or in the opposite x. This difference so abysmal gives us an idea of \u200b\u200bthe new complexity needed to properly describe the reality of spacetime.
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A hug friends.
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