Spin Waves excited and detected in quantum Hall ferromagnet
Electrodes stretch diamond strings to increase the frequency of atomic vibrations to which an electron is sensitive, just like tightening a guitar string increases the frequency or pitch of the string. The tension quiets a qubit’s environment and improves memory from tens to several hundred nanoseconds, enough time to do many operations on a quantum chip.
[Research supported by U.S. National Science Foundation grants DMR 1231319 and ECCS 0335765.]
Learn more in the Harvard SEAS news story Tunable diamond string may hold key to quantum memory. (Date image taken: unknown; date originally posted to NSF Multimedia Gallery: July 16, 2021)
Credit: Second Bay Studios/Harvard SEAS
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