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Towards phonon routing: Controlling propagating acoustic waves in the quantum regime
- Publication Year :
- 2019
-
Abstract
- We explore routing of propagating phonons in analogy with previous experiments on photons. Surface acoustic waves (SAWs) in the microwave regime are scattered by a superconducting transmon qubit. The transmon can be tuned on or off resonance with the incident SAW field using an external magnetic field or the Autler-Townes effect, and thus the reflection and transmission of the SAW field can be controlled in time. We observe 80% extinction in the transmission of the low power continuous signal and a 40 ns rise time of the router. The slow propagation speed of SAWs on solid surfaces allows for in-flight manipulations of the propagating phonons. The ability to route short, 100 ns, pulses enables new functionality, for instance to catch an acoustic phonon between two qubits and then release it in a controlled direction.<br />10 pages, 11 figures put into 4 figures, 1 table
- Subjects :
- Physics
Quantum Physics
Photon
Field (physics)
Condensed Matter - Mesoscale and Nanoscale Physics
business.industry
Phonon
FOS: Physical sciences
General Physics and Astronomy
Acoustic wave
Transmon
01 natural sciences
010305 fluids & plasmas
Magnetic field
Optics
Qubit
Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
0103 physical sciences
Reflection (physics)
Quantum Physics (quant-ph)
010306 general physics
business
Subjects
Details
- Language :
- English
- Database :
- OpenAIRE
- Accession number :
- edsair.doi.dedup.....5fcf59360f396a3725556006903bcd3f