Spin-orbit-induced strong coupling of a single spin to a nanomechanical resonator
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Spin-orbit-induced strong coupling of a single spin to a nanomechanical resonator. / Pályi, András; Struck, P R; Rudner, Mark; Flensberg, Karsten; Burkard, Guido.
In: Physical Review Letters, Vol. 108, No. 20, 206811, 23.05.2012.Research output: Contribution to journal › Journal article › Research › peer-review
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TY - JOUR
T1 - Spin-orbit-induced strong coupling of a single spin to a nanomechanical resonator
AU - Pályi, András
AU - Struck, P R
AU - Rudner, Mark
AU - Flensberg, Karsten
AU - Burkard, Guido
PY - 2012/5/23
Y1 - 2012/5/23
N2 - We theoretically investigate the deflection-induced coupling of an electron spin to vibrational motion due to spin-orbit coupling in suspended carbon nanotube quantum dots. Our estimates indicate that, with current capabilities, a quantum dot with an odd number of electrons can serve as a realization of the Jaynes-Cummings model of quantum electrodynamics in the strong-coupling regime. A quantized flexural mode of the suspended tube plays the role of the optical mode and we identify two distinct two-level subspaces, at small and large magnetic field, which can be used as qubits in this setup. The strong intrinsic spin-mechanical coupling allows for detection, as well as manipulation of the spin qubit, and may yield enhanced performance of nanotubes in sensing applications.
AB - We theoretically investigate the deflection-induced coupling of an electron spin to vibrational motion due to spin-orbit coupling in suspended carbon nanotube quantum dots. Our estimates indicate that, with current capabilities, a quantum dot with an odd number of electrons can serve as a realization of the Jaynes-Cummings model of quantum electrodynamics in the strong-coupling regime. A quantized flexural mode of the suspended tube plays the role of the optical mode and we identify two distinct two-level subspaces, at small and large magnetic field, which can be used as qubits in this setup. The strong intrinsic spin-mechanical coupling allows for detection, as well as manipulation of the spin qubit, and may yield enhanced performance of nanotubes in sensing applications.
U2 - 10.1103/PhysRevLett.108.206811
DO - 10.1103/PhysRevLett.108.206811
M3 - Journal article
C2 - 23003173
VL - 108
JO - Physical Review Letters
JF - Physical Review Letters
SN - 0031-9007
IS - 20
M1 - 206811
ER -
ID: 41038564