Today’s Popular Posts
- .
Popular Posts
- ,
Tag Archives: quantum mechanics
Proteins and quantum transition: Instant shape-shifting
Every once in a great while a piece of very interesting science comes along, quietly, until more and more people notice that not only is important but it may be right. Then scientists get into high gear and start doing more intensive experimenting. Sometimes the science press or even the popular media catch wind of [...]
Posted in Impact: Proteomics Also tagged amino acids, biochemistry, configuration, DNA, Lu, Luo, protein, protein folding, proteomics, quantum folding, quantum transition Leave a comment
Graphene spintronics: Studies show promise
If you’ve had any contact with the concept of ‘digital devices’ (as in theory of, not the use of) you’ve heard it explained like ‘switches’ (i.e. gates) that are either ON or OFF, zeroes or ones – the binary code – that sort of thing. Information is stored or processed based on a sequence of [...]
Posted in News: Nanotechnology Also tagged digital computing, graphene, graphite, nanotechnology, nanotube, semiconductor, spintronics Leave a comment
Quantum entanglement helps keep DNA together
Once in a while science produces theoretical work that has tantalizing possibilities but also raises a strong skeptical response. This is another way of saying that a theory has a certain amount of plausibility but is without experimental evidence. Such is the case with a theory proposed by Elisabeth Rieper and colleagues at the National [...]
Posted in Impact: Quantum Physics Also tagged base pair, classical mechanics, DNA, double-helix, nucleotide, phonon, quantum biology, quantum entanglement, scientific method, Van der Waals forces 3 Comments
Confirmation: Quantum entanglement in photosynthesis
The discovery that every-day, ‘normal temperature’, biological systems – plants – use quantum effects in the process of photosynthesis has been advancing for several years. For physicists and biologists this is becoming something of a revelation. Physicists in particular, accustomed to observing quantum effects only at extreme cold (approaching absolute zero), find the idea that [...]
Posted in News: Quantum Physics Also tagged biology, entanglement, high temperature quantum effects, photosynthesis, plants, quantum coherence Comments closed
Remodeling: A new model for material science
At one level this is a simple piece of news, announced by Princeton University (New Jersey, USA): Princeton engineers, led by Emily Carter, Professor of Mechanical and Aerospace Engineering and Applied and Computational Mathematics, have refurbished an 80-year-old mathematical formula to develop a new approach for computer models used in material science. At another level, [...]
Posted in Impact: Quantum Physics Also tagged computer modeling, electrons, Fermi, Hohenberg, kinetic, Kohn, materials science, Thomas 1 Comment
Phonons in our future
Ever heard of a ‘phonon torpedo’? How about a ‘phonon laser’? Not that either? No wonder, they don’t exist. Although a phonon is to sound as the photon is to light, we do not know much about working with phonons. However, here is news concerning research that – one day – may bring about devices [...]
Posted in News: Quantum Physics Also tagged laser, optical laser, phonon, phonon laser, photons, quanta, quantum wells Leave a comment
Quantum chemistry – a new world
Here’s the story in a nutshell: Scientists have long known how to control the internal states of molecules, such as their rotational and vibrational energy levels. In addition, the field of quantum chemistry has existed for decades to study the effects of the quantum behavior of electrons and nuclei—constituents of molecules. But until now scientists [...]
Posted in Impact: Quantum Physics Also tagged absolute zero, chemistry, molecules, NIST, quantum chemistry, spin 1 Comment
Update: Quantum photosynthesis
Just to underline the post Quantum mechanics in photosynthesis, oh my. there’s another take on the interpretation and significance of the research at Cosmic Variance. Here’s a sample: We can think about this in terms of Feynman’s way of talking about quantum mechanics: rather than a particle taking a unique path between two points, as [...]
Quantum mechanics in photosynthesis, oh my.
Just when biologists thought they were getting a handle on some of the molecular behavior in cells, along come other scientists to reveal that at least in photosynthesis the ‘crazy’ world of quantum mechanics has been put to work. Oh my, indeed. Not that this comes as a huge surprise. Quantum physics underlies everything in [...]
Posted in News: Cell Biology Also tagged algae, biology, chemistry, light-harvesting, photosynthesis, quantum biology Leave a comment
Breakthrough will lead to further entanglements
The title of this post, “Breakthrough will lead to further entanglements” should be taken literally…and figuratively. An experiment by L. G. Herrmann in France, working with colleagues in France, Spain, and Germany, and published in Physical Review Letters has demonstrated for the first time in a solid state device the property of quantum mechanics called [...]
Posted in News: Nuclear Physics Also tagged Cooper pair, electrons, entanglement, nanotubes, superconducting Leave a comment
Quantum gas microscope sees quirks
Continuing the recent spate of announcements concerning new scientific instruments, researchers at Harvard University have developed a quantum gas microscope that can glimpse into the quantum mechanics world, for example the behavior of supercold rubidium atoms. The what, you say? Well, rubidium is one of the more esoteric elements (Rb – atomic number 37) that [...]
Posted in News: Scientific Instruments Also tagged microscope, quantum gas, rubidium, supercold, superconductivity Leave a comment
Diode tunneling into quantum computing
One way or another, computers will eventually incorporate aspects of quantum physics. They may be true ‘quantum computers’ or just use components based on quantum mechanics, but the trends are moving in the quantum direction. (I realize quantum direction is pretty much an oxymoron.) We’re almost at the end of the road for current silicon-based [...]
Posted in News: Computer Power Also tagged computer, diode, lithography, microchip, quantum, tunneling Leave a comment
Quantum Teleportation: Step 4, 150 Kilometers