Lego is an unusual candidate to make thermal computing cost less.
Category: quantum physics – Page 736
Searching for Quantum Gravity
What is spacetime? How do physicists describe it? How does it relate to quantum gravity? Thomas Hartman passionately pursues these mysteries.
Looking for Light Reading? NSF-backed ‘Comic Books’ Tackle Quantum Computing
Still baffled by quantum computing? How about turning to comic books (graphic novels for the well-read among you) for some clarity and a little humor on QC. The National Science Foundation has done just as part of its EPiQC (Enabling Practical-scale Quantum Computing) program. So far eight Zines have been created with more to come.
Comic books offer approachable ways to convey both humor and information. One might think that comic books would not be able to convey complex information like the ideas behind QC. In this case, one would be wrong, at least for one as creative as the University of Chicago s Diana Franklin, as part of the National Science Foundation (NSF) funded https://www.epiqc.cs.uchicago.edu/”>EPIQC Expedition in Computing, wrote Mark Hill of the University of Wisconsin-Madison in a recent blog for Computing Community Consortium, run by NSF.
In particular, Diana and colleagues have developed eight, with more coming, https://www.epiqc.cs.uchicago.edu/zines”>zines that are comic-book-like pamphlets obtained by printing and folding a single sheet of paper. The topics include quantum notation, superposition, and history. In my humble opinion, these are great examples of the synergy possible with research and education done together. Enjoy! .
Higgs mode and its decay in a two-dimensional antiferromagnet
Essentially the higgs mode is like a developer mode for materials and even physics by itself. It could make metals that are as light as a feather but essentially as strong as a universe. It could make essentially near infinitely strong metals that could be put on spaceships to handle all manners of energy blasts. Even weird things could happen where like even changing dimension al physics of areas. Essentially a near cartoon like physics or even prove the existence of the stranger things dimension really happened. Even keep out other dimensions from entering our universe. Even controlling the universe itself by healing it. Essentially like it could allow the monitor from halo kinda developer mode to modify gravity or all variables or even bring new variables into the dimension.
Condensed-matter analogues of the Higgs boson in particle physics allow insights into its behaviour in different symmetries and dimensionalities1. Evidence for the Higgs mode has been reported in a number of different settings, including ultracold atomic gases2, disordered superconductors3, and dimerized quantum magnets4. However, decay processes of the Higgs mode (which are eminently important in particle physics) have not yet been studied in condensed matter due to the lack of a suitable material system coupled to a direct experimental probe. A quantitative understanding of these processes is particularly important for low-dimensional systems, where the Higgs mode decays rapidly and has remained elusive to most experimental probes. Here, we discover and study the Higgs mode in a two-dimensional antiferromagnet using spin-polarized inelastic neutron scattering. Our spin-wave spectra of Ca2RuO4 directly reveal a well-defined, dispersive Higgs mode, which quickly decays into transverse Goldstone modes at the antiferromagnetic ordering wavevector. Through a complete mapping of the transverse modes in the reciprocal space, we uniquely specify the minimal model Hamiltonian and describe the decay process. We thus establish a novel condensed-matter platform for research on the dynamics of the Higgs mode.
This tiny glass bead has been quantum chilled to near absolute zero
A new method for manipulating the quantum state of particles could one day allow us to observe an object in two places at once. The technique has been used to chill a tiny glass bead into its coldest possible quantum state.
Once you get down to extremely small scales, heat and motion are interchangeable: the more a particle is moving, the hotter it is. So to cool down a small particle, you have to stop it moving. Because the rules of quantum mechanics mean you can never know exactly how fast a particle is moving, there is a limit to how cold a particle can get. When a particle is at that limit, we call it the particle’s ground state.
Technological Applications of the Higgs Boson
Essentially the higgs boson could create a replicator and even a teleportation device.
Can you think of any? Here’s what I mean. When we set about justifying basic research in fundamental science, we tend to offer multiple rationales. One (the easy and most obviously legitimate one) is that we’re simply curious about how the world works, and discovery is its own reward. But often we trot out another one: the claim that applied research and real technological advances very often spring from basic research with no specific technological goal. Faraday wasn’t thinking of electronic gizmos when he helped pioneer modern electromagnetism, and the inventors of quantum mechanics weren’t thinking of semiconductors and lasers. They just wanted to figure out how nature works, and the applications came later.
So what about contemporary particle physics, and the Higgs boson in particular? We’re spending a lot of money to look for it, and I’m perfectly comfortable justifying that expense by the purely intellectual reward associated with understanding the missing piece of the Standard Model of particle physics. But inevitably we also mention that, even if we don’t know what it will be right now, it’s likely (or some go so far as to say “inevitable”) that someday we’ll invent some marvelous bit of technology that makes crucial use of what we learned from studying the Higgs. So — anyone have any guesses as to what that might be? You are permitted to think broadly here. We’re obviously not expecting something within a few years after we find the little bugger. So imagine that we have discovered it, and if you like you can imagine we have the technology to create Higgses with a lot less overhead than a kilometers-across particle accelerator.