Phonon Burst
A quantum device that generates precisely controlled bursts of phonons — quantized sound-like vibrations — by forcing electrons through an ultra-thin crystal held at 4 K. Each electron-lattice collision transfers discrete momentum, kicking the crystal into a controllable vibrational mode. Reported July 2026.
Active phonons0
Phonon frequency spectrum (GHz)
16
32
64
128
256
512
1k
2k
Mechanism
4 K
Operating temperature
Cooling to 4 Kelvin makes electrons coherent quantum carriers, giving fine-grained control over when and how phonons are emitted.
Phonon
Quantum of sound
A phonon is a quantized packet of lattice vibration — the acoustic analogue of a photon, carrying discrete energy ℏω and momentum.
Ultra-thin crystal
Two-dimensional material
In an atomically thin sheet, quantum confinement collapses the phonon dispersion into discrete branches, making every emission event programmable.