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Scientists can now reliably create a strange quantum object called a domain wall. The discovery could lead to new quantum technology and to a better understanding of quantum particles in general. Domain walls form when groups of atoms at very low temperatures segregate into different clumps, or “domains.” Between those domains forms a “wall” that … Read more
Both quantum computing and machine learning have been touted as the next big computer revolution for a fair while now. However, experts have pointed out that these techniques aren’t generalized tools – they will only be the great leap forward in computer power for very specialized algorithms, and even more rarely will they be able … Read more
Scientists would be able to discover much more about what lies underground if our planet could be sliced open and viewed as a cross-section – but as that’s not really possible, they have to rely on a variety of other methods instead. One new approach has just been proven in the field: A recently … Read more
What happens inside a black hole — and how does whatever goes on inside relate to the universe outside it? It’s a mystery that has evaded scientists for decades. It’s also a mystery that could also redefine how we think about the nature of the universe. In a paper published in the journal PRX Quantum … Read more
Unifying quantum mechanics with general relativity is the ultimate dream — or nightmare — of physics. It would be a way to finally describe the force of gravity with the tools of quantum mechanics, unlocking how gravity works when it’s really strong and at really small scales. Einstein’s theory of general relativity tells us that … Read more
Whenever you get around to doing dishes, how easily water slides down a dirty plate depends on how uneven and crusty the plate’s surface is. At the nanoscale, however, where surface features can be hundreds of thousands of times smaller than the average width of a human hair, water can experience friction even on surfaces … Read more
In his theory of general relativity, Einstein predicted something called time dilation: the notion that two clocks under two different gravitational pulls will always tick at different speeds. The effect has been observed in many experiments since, but now scientists have recorded it at the smallest scale seen so far. The result was achieved using … Read more
Quantum mechanics – the behavior of the Universe at the smallest of scales – continues to surprise us, with scientists now having been able to successfully create a quantum object called a domain wall in laboratory settings. For the first time, these walls can now be generated in the lab on demand, occurring when … Read more
Current quantum computers are highly prone to errors, making them unlikely to be of practical use, but an artificial intelligence that spots and fixes mistakes could help Technology 10 February 2022 By Matthew Sparkes Quantum computers are still error-prone Bartlomiej K. Wroblewski / Alamy Current quantum computers make too many errors to ever be truly … Read more
The moment I meet Horst Schmidt-Böcking outside the Bockenheimer Warte subway stop just north of the downtown area of Frankfurt, Germany, I know I have come to the right place. After my “Hi, thank you for meeting me,” his very first words are “I love Otto Stern.” My trip on this prepandemic morning in November … Read more