Quantum Acoustics with Surface Acoustic Waves

Abstract

It has recently been demonstrated that surface acoustic waves (SAWs) can interact with superconducting qubits at the quantum level. SAW resonators in the GHz frequency range have also been found to have low loss at temperatures compatible with superconducting quantum circuits. These advances open up new possibilities to use the phonon degree of freedom to carry quantum information. In this paper, we give a description of the basic SAW components needed to develop quantum circuits, where propagating or localized SAW-phonons are used both to study basic physics and to manipulate quantum information. Using phonons instead of photons offers new possibilities which make these quantum acoustic circuits very interesting. We discuss general considerations for SAW experiments at the quantum level and describe experiments both with SAW resonators and with interaction between SAWs and a qubit. We also discuss several potential future developments.

14 pages, 12 figures

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• Actively controllable topological phase transition in phononic beam systems
• Resolving Phonon Fock States in a Multimode Cavity with a Double-Slit Qubit
• Quantum bits with Josephson junctions
• Beyond Spontaneous Emission: Giant Atom Bounded in Continuum
• Experimental demonstration of a two-dimensional phonon cavity in the quantum regime
• Quantum optics with giant atoms -- the first five years
• Surface acoustic wave unidirectional transducers for quantum applications
• Squeezing and multimode entanglement of surface acoustic wave phonons
• Prospects for quantum acoustics with phononic crystal devices
• Phononic bath engineering of a superconducting qubit
• Towards phonon routing: Controlling propagating acoustic waves in the quantum regime
• Surface acoustic wave resonators on thin film piezoelectric substrates in the quantum regime
• Thin film aluminum nitride surface acoustic wave resonators for quantum acoustodynamics
• Coherent Control of an Optical Quantum Dot Using Phonons and Photons
• Electron qubits surfing on acoustic waves: review of recent progress
• Minimally-diffracting quartz for ultra-low temperature surface acoustic wave resonators
• Synthesizing electromagnetically induced transparency without a control field in waveguide QED using small and giant atoms
• High quality quasinormal modes of phononic crystals for quantum acoustodynamics
• Nonlinear cascaded quantum network with giant emitters
• Chiral quantum optics with giant atoms