What a Math Party Game Tells Us About Graph Theory | Quanta Magazine
Now that pandemic restrictions are easing up, people are getting together again. But it’s been a while, so if you and your friends need some help breaking the ice, here’s a mathematical party game you can try. Challenge everyone in your group to shake hands, but only with an odd number of people. (Feel free to substitute air high-fives if you prefer a little more social distance.) Let’s assume it’
The Connoisseur of Number Sequences | Quanta Magazine
Neil Sloane is considered by some to be one of the most influential mathematicians of our time. That’s not because of any particular theorem the 75-year-old Welsh native has proved, though over the course of a more than 40-year research career at Bell Labs (later AT&T Labs) he won numerous awards for papers in the fields of combinatorics, coding theory, optics and statistics. Rather, it’s because
A New Algorithm for Graph Crossings, Hiding in Plain Sight
This past October, as Jacob Holm and Eva Rotenberg were thumbing through a paper they’d posted a few months earlier, they realized they had been sitting on something big. For decades computer scientists had been trying to develop a fast algorithm for determining when it’s possible to add edges to a graph so that it remains “planar,” meaning none of its edges cross each other. But the field had bee
A New Approach to Multiplication Opens the Door to Better Quantum Computers | Quanta Magazine
When I was 9, my family got a new computer. It was better than our old computer in every way save one: It couldn’t run my favorite racing game. What’s the point of a fancy new computer, I remember thinking, if it can’t run the program I care about most? A similar issue applies to quantum computers. In theory, they can do anything that a classical computer can. In practice, however, the quantumness
Mathematicians Discover the Perfect Way to Multiply | Quanta Magazine
Four thousand years ago, the Babylonians invented multiplication. Last month, mathematicians perfected it. On March 18, two researchers described the fastest method ever discovered for multiplying two very large numbers. The paper marks the culmination of a long-running search to find the most efficient procedure for performing one of the most basic operations in math. “Everybody thinks basically
Physicists Aim to Classify All Possible Phases of Matter | Quanta Magazine
In the last three decades, condensed matter physicists have discovered a wonderland of exotic new phases of matter: emergent, collective states of interacting particles that are nothing like the solids, liquids and gases of common experience. The phases, some realized in the lab and others identified as theoretical possibilities, arise when matter is chilled almost to absolute-zero temperature, hu
Quantum Theory Rebuilt From Simple Physical Principles | Quanta Magazine
Scientists have been using quantum theory for almost a century now, but embarrassingly they still don’t know what it means. An informal poll taken at a 2011 conference on Quantum Physics and the Nature of Reality showed that there’s still no consensus on what quantum theory says about reality — the participants remained deeply divided about how the theory should be interpreted. Some physicists jus
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The Brain Processes Speech in Parallel With Other Sounds | Quanta Magazine
This Physicist Discovered an Escape From Hawking’s Black Hole Paradox | Quanta Magazine
Mathematicians Solve Decades-Old Classification Problem | Quanta Magazine
Quanta Magazine
The Physics Still Hiding in the Higgs Boson | Quanta Magazine
Mathematicians Disprove Conjecture Made to Save Black Holes | Quanta Magazine
Mathematicians Find Wrinkle in Famed Fluid Equations | Quanta Magazine
In Mysterious Pattern, Math and Nature Converge | Quanta Magazine