"Second" time dimension creates robust qubits

Retro

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I can't imagine a second time dimension running in parallel with the first, can you? Well. these scientists sort of did it with a psuedo second time dimension in order to prevent qubit decoherence, the bain of quantum computers where they stop behaving quantumly. And lasers. Always lasers...

By shining a laser pulse sequence inspired by the Fibonacci numbers at atoms inside a quantum computer, physicists have created a remarkable, never-before-seen phase of matter. The phase has the benefits of two time dimensions despite there still being only one singular flow of time, the physicists report July 20 in Nature.

This mind-bending property offers a sought-after benefit: Information stored in the phase is far more protected against errors than with alternative setups currently used in quantum computers. As a result, the information can exist without getting garbled for much longer, an important milestone for making quantum computing viable, says study lead author Philipp Dumitrescu.

Nerd level: hardcore.

penrose tiling.jpg
Penrose tiling: a non-repeating 5D dimensional pattern squished down to just 2D
has something to do with this


Blow your mind, here:

 

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This improvement handily addresses the massive issues of quantum decoherence holding back quantum computers that Sabine Hossenfelder wrote about in August 2019. If this method proves to be practical, then we might see those million qubit computers sooner than we think, solving the issues that she explained about.


Yes, that's the same Sabine with the fantastic YouTube channel. Click the pic to check it out. :)

Sabine.jpg
 
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