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Harvard researchers use sound waves to shield quantum bits from noise

Theorist who proposed the 2024 continuous-rotation approach

Harvard researchers extended the memory of a diamond-based quantum bit roughly threefold by surrounding it with a continuous stream of microscopic sound waves. The technique, published in Nature Physics, could let phonons both carry and protect quantum information in compact networks built on chips.

Updated 1 hour ago

Notable Quotes

Silicon-vacancy spins are excellent quantum memories, but they are extremely sensitive to stray magnetic fields and imperfections in the solid.

from Harvard researchers use sound waves to shield quantum bits from noise · Updated 1 hour ago

The clever trick in this experiment was to use the vibrational modes themselves to drive the spin.

from Harvard researchers use sound waves to shield quantum bits from noise · Updated 1 hour ago