Spin readout and initialization in semiconductor quantum dots

Details Spin readout and initialization in semiconductor quantum dots Spin readout and initialization in semiconductor quantum dots

2006-11-14

2006-11-14

Crane, Sara (Department: 2811)

Active solid-state devices (e.g., transistors, solid-state diode

Thin active physical layer which is

Heterojunction

C257S024000

Reexamination Certificate

active

07135697

ABSTRACT:
A semiconductor quantum dot device converts spin information to charge information utilizing an elongated quantum dot having an asymmetric confining potential along its length so that charge movement occurs during orbital excitation. A single electron sensitive electrometer is utilized to detect the charge movement. Initialization and readout can be carried out rapidly utilizing RF fields at appropriate frequencies.

REFERENCES:
patent: 5530263 (1996-06-01), DiVincenzo
patent: 5671437 (1997-09-01), Taira
patent: 5844834 (1998-12-01), Risch et al.
patent: 6323504 (2001-11-01), Shin et al.
patent: 6369404 (2002-04-01), Kane
patent: 6472681 (2002-10-01), Kane
patent: 6597010 (2003-07-01), Eriksson et al.
patent: 6635898 (2003-10-01), Williams et al.
I.H. Chan, et al., “Few-Electron Quantum Dots for Quantum Computing,” preprint http://arxiv.org/cond-mat/0309205.
Daniel Loss, et al., “Quantum Computation with Quantum Dots,” Physical Review A, vol. 57, No. 1, Jan. 1998, pp. 120-126.
B.E. Kane, “A Silicon-Based Nuclear Spin Quantum Computer,” Nature, vol. 393, May 14, 1998, pp. 133-137.
Rutger Vrijen, et al, “Electron-Spin-Resonance Transitors for Quantum Computing in Silicon-Germanium Heterostructures,” Physical Review A, vol. 62, 2000, pp. 12306-1-012306-10.
M. Ciorga, et al., “Addition Spectrum of a Lateral Dot from Coulomb and Spin-Blockade Spectroscopy,” Physical Review B, vol. 61, No. 24, Jun. 15, 2000, pp. 315-318.
Patrik Recher, et al., “Quantum Dot as Spin Filter and Spin Memory,” Physical Review Letters, vol. 85, No. 9, Aug. 28, 2000, pp. 1962-1965.
Michel H. Devoret, et al., “Amplifying Quantum Signals with the Single-Electron Transistor,”Nature, vol. 406, Aug. 31, 2000, pp. 1039-1046.
Friesen, M., et al., “Modeling Interactions of Si-Ge Qubits,” American Physical Society, Jan. 2001; available at http://www.aps.org/meet/MAR01/baps/abs/S3640004.html.
Jeremy Levy, “Quantum-Information Processing with Ferroelectrically Coupled Quantum Dots,” Physical Review A, vol. 64, 2001, pp. 052306-1-052306-7.
Hans-Andreas Engel, et al., “Detection of Single Spin Decoherence in a Quantum Dot via Charge Currents,” Physical Review Letters, vol. 86, No. 20, May 14, 2001, pp. 4648-4651.
L.M.K. Vandersypen, et al., “Quantum Computing with Electron Spins in Quantum Dots,” arXiv:quant-ph/0207059 v1, Jul. 10, 2002, pp. 1-10.
Mark Friesen, et al., “Practical Design and Simulation of Silicon-Based Quantum-Dot Qubits,” Physical Review B 67, 121301(4) (2003), pp. 121301-1-121301-4.
J.M. Elzerman, et al., “Few-Electron Quantum Dot Circuit with Integrated Charge Read Out,” Physical Review B 67, 161308(R)(2003), pp. 161308-1-161308-4.
Wei Lu, et al., “Real-Time Detection of Electron Tunneling in a Quantum Dot,”Nature, 423, 422 (2003).
R. Hanson, et al., “Zeeman Energy and Spin Relaxation in a One-Electron Quantum Dot,” Physical Review Letters, vol. 91, No. 19, Nov. 7, 2003, pp. 196802-1-196802-4.
Mark Friesen, et al., “Spin Readout and Initialization in a Semiconductor Quantum Dot,” Physical Review Letters, vol. 92, No. 3, Jan. 23, 2004, pp. 037901-1-037901-4.

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