Monitoring the qubit response to its magnetic environment the low and high-frequency flux noise spectrum of spin waves will be inferred.
Exploring spin wave dynamics in thin films by coupling to a superconducting qubit complements conventional measurement techniques based on photon, electron or neutron scattering methods, which require highly populated excitations.
SWD converts input voltage signals into the spin waves
, computes with spin waves
, and converts the output spin waves
into the voltage signals.
Alexander Khitun, the lead researcher, who is a research professor at UC Riverside, has been working for more than nine years to develop logic device exploiting spin waves
Statistical mechanics of magnetic excitations; from spin waves
to stripes and checkerboards.
He and his contributors describe ferrous magnets, spin waves
that play an important role in very small magnetic systems, magnetic sensors, magnetic nano-contacts, quantized models in lateral confinement, Brillouin light scattering studies of spin dynamics (in patterned nano-elements from a single layer to multilayered structures), non-uniform magnetization dynamics in ultra-small ferromagnetic planar elements, mode structures of ferromagnetic squares, spin waves
in the inhomogeneous internal field of nano-structured rings, and localized spin wave
modes excited by polarized current.
Recent experiments on quantum gases have utilized this cherished trait of cold atoms for the study of spin waves
, a property usually associated with solid-state materials rather than dilute atomic gases.
Introduced by Bloch as plane waves of magnetization in unconfined ferromagnets, spin waves
currently play an important role for description of very small magnetic systems ranging from microelements, building the basis for magnetic sensors, down to magnetic nano-contacts.
Defining magnons as quasiparticles that describe quanta of spin waves
in magneto-ordered media, Safonov says the concept allows perturbations of the magnetic material to be the represented as an evolution of magnon gas excited to some definite level or, classically, as an evolution of spin waves
In order to create enhanced spin currents, the researchers used the collective motion of spins called spin waves
(the wave property of spins).
However, the researchers are still looking at different ways of processing the data carried by the spin waves