#QuantumAcoustics

Single Artificial Atom SASER: Sound Amplification via Stimulated Phonon Emission

Researchers demonstrated a SASER using a superconducting flux qubit coupled to a SAW resonator at 3.21 GHz, achieving 8x signal amplification, 9x linewidth narrowing, and ~90 phonons — proving lasing is universal across acoustic and electromagnetic domains.

#SASER #QuantumAcoustics #Research

Material-Agnostic Spin-Phonon Coupling Characterization via High-Overtone Bulk Acoustic Wave Resonators

A new platform uses LiNbO₃ transducers on arbitrary crystals to probe spin-phonon interactions at mK temperatures and GHz frequencies. Demonstrated on Er³⁺:CaWO₄ and Er³⁺:YSO, achieving cooperativities ~0.5, enabling hybrid quantum system design.

#QuantumAcoustics #SpinPhonon #Research

How sound and light act alike—and not—at the smallest scale A world-famous light experiment from 1801 has now been carried out with sound for the first time. Research by physicists in Leiden has produced new insights that could be applied in 5G devices and the emerging field of quantum acoustics. The study is published in the journal Optics Letters.

🤯 Sound just got a glow-up! Scientists recreated a legendary 1801 *light* experiment… with *sound*! ✨ Could unlock faster 5G & quantum tech! 🎶 #QuantumAcoustics

Source: https://phys.org/news/2025-11-alike-smallest-scale.html