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QUANTUM

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Quantum Foam a place to travel from on the Internet The size of the Planck length can be visualized as follows: if a particle or dot about 0.1mm in size (which is at or near the smallest the unaided human eye can see) were magnified in size to be as large as the observable universe, then inside that universe-sized "dot", the Planck length would be roughly the size of an actual 0.1mm dot. In other words, the diameter of the observable universe is to within less than an order of magnitude, larger than a 0.1 millimeter object, roughly at or near the limits of the unaided human eye, by about the same factor (1031) as that 0.1mm object or dot is larger than the Planck length. More simply – on a logarithmic scale, a dot is halfway between the Planck length and the size of the observable universe. At this miniscule scale, it is theorized that tiny particles or black holes are fluctuating -- appearing and disappearing. This churning mix of particles is called quantum foam. To visualize it, imagine a swimming pool full of boiling water. Up close, you can see frothing and bubbles bursting, but if you viewed a satellite photo of the pool, the surface would appear unbroken. The Planck scale is the limit below which the very notions of space and length cease to exist. Any attempt to investigate the possible existence of shorter distances (less than 1.6 ×10−35 m), by performing higher-energy collisions, would inevitably result in black hole production. Higher-energy collisions, rather than splitting matter into finer pieces, would simply produce bigger black holes. The Casimir effect can also be understood in terms of the behavior of virtual particles in the empty space between two parallel plates. Ordinarily, quantum field theory does not deal with virtual particles of sufficient energy to curve spacetime significantly, so quantum foam is a speculative extension of these concepts which imagines the consequences of such high-energy virtual particles at very short distances and times. QCD in Perspective from mdipierro on Vimeo. The video shows a blend of scientific visualization and artistic rendering to explain the scale and purpose of lattice QCD computations. We zoom from an human eye to the molecular scale, to the atomic scale and the subatomic scale (down to a billionth of a billionth of a meter). In the last sequences we reproduce the actual wave function for a Pion (bound quark-antiquark state) in presence of statistical noise, as computed from lattice QCD, superimposed to quantum fluctuations of the topological change density in the vacuum (also from actual lattice QCD computations). All frames are computed from actual data, including DNA unwinding and the Adenine molecular structure.
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© 2015 Flicker Lighttm Studio All Rights Reserved

QUANTUM

FOAM AND ME

Quantum Foam a place to travel from on the Internet The size of the Planck length can be visualized as follows: if a particle or dot about 0.1mm in size (which is at or near the smallest the unaided human eye can see) were magnified in size to be as large as the observable universe, then inside that universe-sized "dot", the Planck length would be roughly the size of an actual 0.1mm dot. In other words, the diameter of the observable universe is to within less than an order of magnitude, larger than a 0.1 millimeter object, roughly at or near the limits of the unaided human eye, by about the same factor (1031) as that 0.1mm object or dot is larger than the Planck length. More simply – on logarithmic scale, a dot is halfway between the Planck length and the size of the observable universe. At this miniscule scale, it is theorized that tiny particles or black holes are fluctuating -- appearing and disappearing. This churning mix of particles is called quantum foam. To visualize it, imagine a swimming pool full of boiling water. Up close, you can see frothing and bubbles bursting, but if you viewed a satellite photo of the pool, the surface would appear unbroken. The Planck scale is the limit below which the very notions of space and length cease to exist. Any attempt to investigate the possible existence of shorter distances (less than 1.6 ×10−35 m), by performing higher-energy collisions, would inevitably result in black hole production. Higher-energy collisions, rather than splitting matter into finer pieces, would simply produce bigger black holes. The Casimir effect can also be understood in terms of the behavior of virtual particles in the empty space between two parallel plates. Ordinarily, quantum field theory does not deal with virtual particles of sufficient energy to curve spacetime significantly, so quantum foam is a speculative extension of these concepts which imagines the consequences of such high-energy virtual particles at very short distances and times. QCD in Perspective from mdipierro on Vimeo. The video shows a blend of scientific visualization and artistic rendering to explain the scale and purpose of lattice QCD computations. We zoom from an human eye to the molecular scale, to the atomic scale and the subatomic scale (down to a billionth of a billionth of a meter). In the last sequences we reproduce the actual wave function for a Pion (bound quark-antiquark state) in presence of statistical noise, as computed from lattice QCD, superimposed to quantum fluctuations of the topological change density in the vacuum (also from actual lattice QCD computations). All frames are computed from actual data, including DNA unwinding and the Adenine molecular structure.