RESEARCH
Coherence, Dephasing, and Why Room Temperature Is Hard
Excitons lose their quantum phase to phonons, disorder, and interactions — and that loss is the central obstacle to room-temperature excitonic quantum devices.
Topic
Fundamentals
2 stories on this topic, across the desks.
RESEARCH
What Is an Exciton? The Bound Pair That Makes Light Into Matter
An exciton is an electron and a hole bound by attraction — a neutral quasiparticle that lets semiconductors absorb, emit, and briefly store light.