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Semiconductor time crystals synchronize oscillations across distances, researchers report

Multiple time crystals can lock frequencies across 40 micrometers, according to ScienceDaily.

The short version

  • Researchers at TU Dortmund University demonstrated that separate time crystals inside a semiconductor can synchronize their electron-nuclear spin oscillations.[ScienceDaily]
  • The coupling is driven by spin-polarized electrons across distances up to 40 micrometers, more than 1,000 times the size of an individual oscillator.[ScienceDaily]
  • Beyond that separation threshold, the time crystals cease locking together and continue oscillating independently.[ScienceDaily]
  • The team noted the mechanism could aid in developing future networks of controllable spin oscillators.[ScienceDaily]

Key facts

  • Physicists at TU Dortmund University led by Alex Greilich published findings showing multiple time crystals can synchronize their oscillations inside a semiconductor.[ScienceDaily]
  • The experimental material is a semiconductor made of gallium arsenide doped with indium and silicon, operated near -270 °C.[ScienceDaily]
  • The coupling relies on moving spin-polarized electrons rather than mechanical vibration.[ScienceDaily]
  • The synchronization persists over distances up to 40 micrometers, which is over 1,000 times the characteristic size of an oscillator.[ScienceDaily]

What remains uncertain

  • The synchronization effect ceases at distances exceeding 40 micrometers, causing the oscillators to decouple.[ScienceDaily]
  • Practical applications for networks of controllable spin oscillators and spin-based technology remain prospective.[ScienceDaily]

Sources

Outlet counts describe coverage, not independent confirmation. Reports may share a wire service or original source.