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Rabi spin oscillations generated by ultrasound in solids.

C Calero¹, E M Chudnovsky

¹Department of Physics and Astronomy, Lehman College, City University of New York, 250 Bedford Park Boulevard West, Bronx, New York 10468-1589, USA.

Physical Review Letters

|August 7, 2007

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Gigahertz ultrasound can induce quantum Rabi oscillations in molecular magnets. This study computes magnetization dynamics from surface acoustic waves, detailing conditions for observing this novel quantum effect.

Area of Science:

Quantum physics
Condensed matter physics
Materials science

Background:

Molecular magnets offer potential for quantum information processing.
Controlling spin states is crucial for quantum technologies.
Ultrasound has been explored for manipulating matter at the nanoscale.

Purpose of the Study:

To investigate the generation of space-time Rabi oscillations using gigahertz ultrasound.
To compute the dynamics of magnetization induced by surface acoustic waves.
To determine the conditions for observing this novel quantum phenomenon.

Main Methods:

Theoretical computation of magnetization dynamics.
Modeling the interaction of gigahertz ultrasound with molecular magnets.

Related Experiment Videos

Analysis of spin state evolution under acoustic wave excitation.

Main Results:

Ultrasound in the gigahertz range can indeed generate space-time Rabi oscillations.
Surface acoustic waves induce measurable dynamics in the magnetization of molecular magnets.
Specific conditions for the observation of these quantum oscillations are identified.

Conclusions:

Gigahertz ultrasound presents a novel method for controlling quantum spin states in molecular magnets.
The findings open avenues for acoustic control of quantum phenomena in magnetic materials.
This research contributes to the development of new quantum technologies based on acoustic manipulation.