Planck Standard

Topic

Quantum

39 stories from Planck Standard. Latest: September 5, 2026.

  1. Physics

    Penn Engineers Coax Light Itself Into Talking to Light Using Exciton-Polaritons, Switching Signals With Just 4 Femtojoules in Step Toward Optical AI Chips

    Bo Zhen's team at the University of Pennsylvania reports in Physical Review Letters that hybrid light-matter quasiparticles trapped in atomically thin semiconductors interact strongly enough to perform all-optical switching, the missing ingredient for photonic processors that could replace electrons in artificial-intelligence accelerators.

    3 min read