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Single electronic spin manipulation in nanocircuits
K.C. Nowack et al. Science ‘07
J. Petta et al. Science ‘05
Orthogonal (real or effective) magnetic fields needed to perform coherent
manipulations
Use of intrinsic nanoconductor properties (spin-orbit coupling, nuclear spins…)
to get a local spin control
QUESTION 1: Can one use ferromagnetic hybrid nanostructures to implement
a local single spin manipulation?

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Circuit QED with electronic spins
confined in nanoconductors?
Single spin detection via dispersive shift of cavity resonance frequency (no transport)
Manipulation and coupling using cavity QED techniques
Spin/photon coupling : schemes using intrinsic nanoconductor properties (spin-orbit,
hyperfine interaction) see e.g. Trif et al.(2008), Burkard et al (2006)
QUESTION 2:
Can one use ferromagnetic contacts can be used to “engineer” spin/photon coupling ?

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QUESTION 3: Is it possible to have:
Not done yet with
superconducting qubits!

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Spin dependent quantum interferences
Coupling between the spin degree of freedom
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Orbital phase directly coupled to local electric field
Interesting possibilities to couple
and manipulate electrically the spin degree of freedom

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