Discovery of Time Crystals Could Radically Change Our Understanding of the Space-Time Continuum. Consider a structure that moves not in space but time, crystals that change shape and move perpetually without energy, and always return to their original state.
Such a structure would break the second law of thermodynamics, a cardinal rule of physics. Yet, in 2012, Nobel Laurette and theoretical physicist Frank Wilczek imagined them, what he called time crystals. Their movement isn’t of their own accord. Instead, a fracture in time’s symmetry allows for them to stay in perpetual motion. Why crystals? Space and time being related, Wilczek wondered if there were crystals who broke the temporal symmetry of nature as well.
Controlled Quantum Dynamics Group. Biologists do not take a quantum physics course during their studies because so far they were able to make sense of biological phenomena without using the counterintuitive laws of physics that govern the atomic scale.
However, in recent years progress in experimental technology has revealed that quantum phenomena are relevant for fundamental biological processes such as photosynthesis, magneto-reception and olfaction. We have helped to initiate the development of this research field and are now working to discover how nature is harnessing quantum dynamics to optimize biological function. S.F. Huelga and M.B. Plenio. Scientists Discover a Jewel at the Heart of Quantum Physics. Physicists reported this week the discovery of a jewel-like geometric object that dramatically simplifies calculations of particle interactions and challenges the notion that space and time are fundamental components of reality.
“This is completely new and very much simpler than anything that has been done before,” said Andrew Hodges, a mathematical physicist at Oxford University who has been following the work. The revelation that particle interactions, the most basic events in nature, may be consequences of geometry significantly advances a decades-long effort to reformulate quantum field theory, the body of laws describing elementary particles and their interactions. Interactions that were previously calculated with mathematical formulas thousands of terms long can now be described by computing the volume of the corresponding jewel-like “amplituhedron,” which yields an equivalent one-term expression. The amplituhedron itself does not describe gravity. Researchers at Brown University shattered an electron wave function. A team of physicists based at Brown University has succeeded in shattering a quantum wave function.
That near-mythical representation of indeterminate reality, in which an unmeasured particle is able to occupy many states simultaneously, can be dissected into many parts. This dissection, which is described this week in the Journal of Low Temperature Physics, has the potential to turn how we view the quantum world on its head. When we say some element of the quantum world occupies many states at once, what’s really being referred to is the element’s wave function. A wave function can be viewed as a space occupied simultaneously by many different possibilities or degrees of freedom. If a particle could be in position (x,y,z) in three-dimensional space, there are probabilities that it could specifically be at (x1,y1,z1) or (x2,y2,z2) and so forth, and this is represented in the wave function, which is all of these possibilities added together.
When Parallel Worlds Collide . . . Quantum Mechanics Is Born. Parallel universes – worlds where the dinosaur-killing asteroid never hit, or where Australia was colonised by the Portuguese – are a staple of science fiction.
Hawking Radiation Recreated In A Laboratory. A researcher claims to have produced a simulation of Hawking radiation, which if true will give physicists the chance to test one of Stephen Hawking's most significant predictions.
In 1974, Hawking upended ideas about black holes with his theory that just outside the event horizon, particle-antiparticle pairs should appear as a result of the black hole's gravitational field. One of these would be drawn into the hole, but the other escape. Since the appearance of the pair draws energy from the hole and only half of this is recaptured, the effect is to reduce the hole's mass, causing it to eventually evaporate. Hawking's equations have won widespread support from physicists, and are a major contributor to his reputation. However, attempts to find evidence of escaping particles around black holes have so far been unsuccessful. Physicists Achieve Quantum Teleportation of Photon Over 25 Kilometers. For the first time, a team of physicists have successfully teleported a quantum state of a photon to a crystal over 25 kilometers away through a fiber optic cable.
This effectively showed that the photon’s quantum state, not its composition, is important to the teleportation process. The team was led by Nicolas Gisin of the University of Geneva and the results were published in the journal Nature Photonics. World’s First Perpetual Motion Machine? Common Physics Misconceptions. Hypercube Demonstration. An Idiot's Guide to Teleportation » SciFi Ideas / SciFi Ideas. With contributor Harel Dor recently sharing with SciFi Ideas a story idea that makes full use of teleportation technology – Meet the Beamies – I thought it was high time we discussed teleportation in detail.
The Quantum Mechanics of Time Travel. Higgs Boson Part III: How to Discover a Particle. Understanding 4th Dimention - HQ. Imagining the Tenth Dimension part 1 of 2. Dr Quantum - Double Slit Experiment.