Model of Qubit in Multi-Electron Quantum Dot

• Authors: L. Jacak , J. Krasnyj , D. Jacak , W. Salejda , A. Mituś
• Languages of publication: EN

Abstracts

EN

The discussion of qubit for quantum computation in quantum dots technology is presented. The state-of-the-art structure of multi-electron dot is considered and the appropriate quasi-two-level system is suggested employing the singlet-triplet transition in the presence of magnetic field. The methods of qubit rotation (the write procedure) as well as two-qubit operations, as controlled-NOT, in vertically stacked dots system are analysed.

Keywords

EN

73.20.Dx

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2001
• Volume: 99
• Issue: 2
• Pages: 277-292

Dates

published

2001-02

received

2000-08-25

(unknown)

2000-10-27

Contributors

author

L. Jacak

• Institute of Physics, Wrocław University of Technology, Wybrzeże Wyspiańskiego 27, 50-370 Wrocław, Poland

author

J. Krasnyj

• Institute of Mathematics, University of Opole, Oleska 48, Opole, Poland

author

D. Jacak

• Institute of Mathematics, Wrocław University of Technology, Wybrzeże Wyspiańskiego 27, 50-370 Wrocław, Poland

author

W. Salejda

• Institute of Physics, Wrocław University of Technology, Wybrzeże Wyspiańskiego 27, 50-370 Wrocław, Poland

author

A. Mituś

• Institute of Physics, Wrocław University of Technology, Wybrzeże Wyspiańskiego 27, 50-370 Wrocław, Poland

References

• 1. A. Imamoglu, D.D. Awschalom, G. Burkard, D. DiVincenzo, D. Loss, M. Sherwin, A. Small, Phys. Rev. Lett., 83, 4204, 1999
• 2. D. Loss, D. DiVincenzo, Phys. Rev. A, 57, 120, 1998
• 3. P. Zanardi, F. Rossi, Phys. Rev. B, 59, 6170, 1999
• 4. P. Zanardi, F. Rossi, Phys. Rev. Lett., 81, 4752, 1998
• 5. N.H. Bonadeo, J. Erland, D. Gammon, D.S. Katzer, D. Park, D.G. Steel, Science, 282, 1473, 1998
• 6. A.P. Heberle, J.J. Baumberg, K. Kohler, Phys. Rev. Lett., 75, 2598, 1995
• 7. J.M. Kikkawa, D.D. Awschalom, Phys. Rev. Lett., 80, 4213, 1998
• 8. D. Bouwmeester, A. Ekert, A. Zeilinger, The Physics of Quantum Information, Springer-Verlag, Berlin 2000
• 9. J. Preskill, Quantum Information and Computation, http://www.theory.caltech.edu/~preskill/ph229 (1998)
• 10. T. Lundstrom, W. Schoenfeld, H. Lee, P.M. Petroff, Science, 286, 2312, 1999
• 11. S. Fafard, Physica E, 8, 107, 2000
• 12. S. Tarucha, D.G. Austing, Y. Tokura, W.G. van der Wiel, L.P. Kouwenhoven, Phys. Rev. Lett., 84, 2485, 2000
• 13. S. Tarucha, D.G. Austing, T. Honda, R.J. van der Hage, L.P. Kouwenhoven, Phys. Rev. Lett., 77, 3613, 1996
• 14. L.P. Kouwehoven, T.H. Oosterkamp, M.W.S. Danoesastro, M. Eto, D.G. Austing, T. Honda, S. Tarucha, Science, 278, 1788, 1997
• 15. L. Jacak, P. Hawrylak, A. Wójs, Quantum Dots, Springer Verlag, Berlin 1998
• 16. M. Rontani, F. Rossi, F. Manghi, E. Molinari, Phys. Rev. B, 59, 10165, 1999
• 17. M. Wagner, U. Merkt, A. Chaplik, Phys. Rev. B, 45, 1951, 1992
• 18. G. Goldoni, F. Rossi, E. Molinari, Physica B, 272, 518, 1999
• 19. U. Hohenester, F. Rossi, E. Molinari, Solid State Commun., 111, 187, 1999
• 20. U. Hohenester, F. Rossi, E. Molinari, Physica B, 272, 1, 1999
• 21. S. Raymond, S. Fafard, P.J. Poole, A. Wojs, P. Hawrylak, S. Charbonneau, D. Leonard, R. Leon, P.M. Petroff, J.L. Merz, Phys. Rev. B, 54, 11548, 1996
• 22. M. Rontani, F. Rossi, F. Manghi, E. Molinari, Solid State Commun., 112, 151, 1999
• 23. A. Wojs, P. Hawrylak, Solid State Commun., 100, 487, 1996
• 24. A. Wójs, P. Hawrylak, L. Jacak, Acta Phys. Pol. A, 90, 1108, 1996
• 25. S. Hameau, Y. Guldner, O. Verzelen, R. Ferreira, G. Bastard, J. Zeman, A. Lemaitre, J.M. Gerard, Phys. Rev. Lett., 83, 4152, 1999
• 26. A. Wojs, P. Hawrylak, Phys. Rev. B, 53, 10841, 1996
• 27. M. Rontani, F. Rossi, F. Manghi, E. Molinari, Appl. Phys. Lett., 72, 957, 1998
• 28. Ch. Bennet, D. DiVincenzo, Nature, 404, 247, 2000
• 29. L. Landau, E. Lifsic, Quantum Mechanics, PWN, Warsaw 1979 (in Polish)
• 30. A. Wojs, P. Hawrylak, S. Fafard, L. Jacak, Phys. Rev. B, 54, 5604, 1996

Identifiers

DOI

10.12693/APhysPolA.99.277