We propose a scheme to read out qubits defined in single nuclear spins—addressing one of the main obstacles on the way to a solid state NMR quantum computer. It is based on a “spin valve” between bulk nuclear spin systems that is highly sensitive to the state of the qubit spin. We suggest a concrete realization of that detector in a Si lattice and show that it can be operated over a broad range of experimental parameters. Transport of spin through the proposed spin valve is analogous to that of charge through an electronic nanostructure, but exhibits distinctive new features.
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References
Cory D.G. et al. (2000). Fortschritte der Physik 48, 875
Knill E. et al. (2000). Nature 404, 368
Vandersypen L.M.K. et al. (2001). Nature 414, 883
Kane B.E. (1998). Nature 393, 133
Suter D., Lim K. (2002). Phys. Rev. A 65:052309
Ladd T.D. et al. (2002). Phys. Rev. Lett. 89:017901
Köhler J. et al. (1993). Nature 363, 242
Wrachtrup J. et al. (1993). Nature 363, 244
Wrachtrup J. et al. (1997). Chem. Phys. Lett. 267, 179
Rugar D. et al. (2004). Nature 430, 329
Xiao M. et al. (2004). Nature 430, 435
Elzerman J.M. et al. (2004). Nature 430, 431
Berman G.P. et al. (2001). Phys. Rev. Lett. 87:97902
Fu K.-M.C., Ladd T.D., Santori C., Yamamoto Y. (2004). Phys. Rev. B 69:125306
Gurvitz S.A. (1997). Phys. Rev. B 56:15215
Aleiner I.L., Wingreen N.S., Meir Y. (1997). Phys. Rev. Lett. 79:3740
Levinson Y. (1997). Europhys. Lett. 39, 299
Buks E. et al. (1998). Nature 391, 871
Devoret M.H., Schoelkopf R.J. (2000). Nature 406:1039
Makhlin Y. et al. (2001). Rev. Mod. Phys. 73, 357
Choi S.-M., Tang X.-W., Cory D.G. (1997). Int. J. Imaging Syst. Technol. 8, 263
Fel’dman E.B., Lacelle S. (1997). J. Chem. Phys. 107:7067
Micheli A., Daley A.J., Jaksch D., Zoller P. (2004). Phys. Rev. Lett. 93:140408
Gurvitz S.A., Prager Ya.S. (1996). Phys. Rev. B 53:15932
Kindermann M. (2005). Phys. Rev. B 71:165332
Itoh K.M. et al. (2003). Jpn. J. Appl. Phys. 42:6248
Lee J.S., Khitrin A.K. (2005). J. Magn. Reson. 177, 152
Cho G., Yesinowski J.P. (1996). J. Phys. Chem. 100:15716
Ramanathan C. et al. (2005). Phys. Rev. A 71:020303(R)
E. Fradkin, Field Theories of Condensed Matter Systems (AddisonWesley, Reading, 1991).
Meier F., Loss D. (2003). Phys. Rev. Lett. 90:167204
Lampel G. (1968). Phys. Rev. Lett. 20, 491
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Kindermann, M., Cory, D.G. A Nuclear Spin Valve: Towards the Read-out of Single Nuclear Spin Qubits. Quantum Inf Process 6, 127–136 (2007). https://doi.org/10.1007/s11128-006-0046-x
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DOI: https://doi.org/10.1007/s11128-006-0046-x