Experimental demonstration of a two-dimensional phonon cavity in the quantum regime

Understand

The quantum regime in acoustic systems is a focus of recent fundamental research in the new field of Quantum Acoustodynamics (QAD).

• Systems based on surface acoustic waves having an advantage of easy integration in two-dimensions are particularly promising for the demonstration of novel effects in QAD and development of novel devices of quantum acousto-electronics.
• We demonstrate the vacuum mode of the surface acoustic wave resonator by coupling it to a superconducting artificial atom.
• The artificial atom is implemented into the resonator formed by two Brag mirrors.