Realization of a programmable two-qubit quantumprocessor

Nature Physics

Volumn 6, Issue 1, 2010, Pages 13-16

  Hanneke, D ^a   Home, J P ^a   Jost, J D ^a   Amini, J M ^a   Leibfried, D ^a   Wineland, D J ^a  

^a NATIONAL INSTITUTE OF STANDARDS AND TECHNOLOGY   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

QUANTUM OPTICS; TRAPPED IONS;

OF QUANTUM-INFORMATION; PAIRWISE INTERACTION; PHYSICAL SYSTEMS; PROCESS TOMOGRAPHY; QUANTUM PROCESSORS; UNITARY OPERATORS; UNITARY TRANSFORMATIONS; UNIVERSAL CONTROL;

QUBITS;

EID: 73549089693     PISSN: 17452473     EISSN: 17452481     Source Type: Journal    
DOI: 10.1038/nphys1453     Document Type: Article

References (31)

1. Deutsch, D. Quantum theory, the Church-Turing principle and the universal quantum computer. Proc. R. Soc. Lond. A 400, 97-117 (1985).
2. Feynman, R. P. Simulating physics with computers. Int. J. Theor. Phys. 21, 467-488 (1982).
3. Deutsch, D. Quantum computational networks. Proc. R. Soc. Lond. A 425, 73-90 (1989).
4. Barenco, A. et al. Elementary gates for quantum computation. Phys. Rev. A 52, 3457-3467 (1995).
5. Bremner, M. J. et al. Practical scheme for quantum computation with any two-qubit entangling gate. Phys. Rev. Lett. 89, 247902 (2002).
6. Zhang, J., Vala, J., Sastry, S. & Whaley, K. B. Exact two-qubit universal quantum circuit. Phys. Rev. Lett. 91, 027903 (2003).
7. Southwell, K. (ed.) Quantum coherence. Nature 453, 1003-1049 (2008).
8. Hradil, Z., Řeháek, J., Fiurášek, J. & Jeek, M. in Quantum State Estimation (eds Paris, M. & Řeháek, J.) 59-112 (Springer, 2004).
9. Home, J. P. et al. Complete methods set for scalable ion trap quantum information processing. Science 325, 1227-1230 (2009).
10. Kraus, B. & Cirac, J. I. Optimal creation of entanglement using a two-qubit gate. Phys. Rev. A 63, 062309 (2001).
11. Zhang, J., Vala, J., Sastry, S. & Whaley, K. B. Geometric theory of nonlocal two-qubit operations. Phys. Rev. A 67, 042313 (2003).
12. Vidal, G. & Dawson, C. M. Universal quantum circuit for two-qubit transformations with three controlled-NOT gates. Phys. Rev. A 69, 010301(R) (2004).
13. Vatan, F. & Williams, C. Optimal quantum circuits for general two-qubit gates. Phys. Rev. A 69, 032315 (2004).
14. Shende, V. V., Markov, I. L. & Bullock, S. S. Minimal universal two-qubit controlled-NOT-based circuits. Phys. Rev. A 69, 062321 (2004).
15. Nielsen, M. A. & Chuang, I. L. Programmable quantum gate arrays. Phys. Rev. Lett. 79, 321-324 (1997).
16. Makhlin, Y. Nonlocal properties of two-qubit gates and mixed states, and the optimization of quantum computations. Quantum Inf. Proc. 1, 243-252 (2002).
17. Langer, C. et al. Long-lived qubit memory using atomic ions. Phys. Rev. Lett. 95, 060502 (2005).
18. Jost, J. D. et al. Entangled mechanical oscillators. Nature 459, 683-685 (2009).
19. Wineland, D. J. et al. Experimental issues in coherent quantum-state manipulation of trapped atomic ions. J. Res. Natl Inst. Stand. Technol. 103, 259-328 (1998).
20. Leibfried, D. et al. Experimental demonstration of a robust, high-fidelity geometric two ion-qubit phase gate. Nature 422, 412-415 (2003).
21. Rowe, M. A. et al. Transport of quantum states and separation of ions in a dual rf ion trap. Quantum Inf. Comput. 2, 257-271 (2002).
22. Mezzadri, F. How to generate random matrices from the classical compact groups. Notices AMS 54, 592-604 (2007).
23. Roos, C. F. et al. Bell states of atoms with ultralong lifetimes and their tomographic state analysis. Phys. Rev. Lett. 92, 220402 (2004).
24. Jozsa, R. Fidelity for mixed quantum states. J. Mod. Optics 41, 2315-2323 (1994).
25. Ozeri, R. et al. Errors in trapped-ion quantum gates due to spontaneous photon scattering. Phys. Rev. A 75, 042329 (2007).
26. Horodecki, M., Horodecki, P. & Horodecki, R. General teleportation channel, singlet fraction, and quasidistillation. Phys. Rev. A 60, 1888-1898 (1999).
27. Nielsen, M. A. & Chuang, I. L. Quantum Computation and Quantum Information (Cambridge Univ. Press, 2000).
28. Knill, E. Quantum computing with realistically noisy devices. Nature 434, 39-44 (2005).
29. Kielpinski, D., Monroe, C. & Wineland, D. J. Architecture for a large-scale ion-trap quantum computer. Nature 417, 709-711 (2002).
30. Duan, L.-M. & Monroe, C. in Advances In Atomic, Molecular, and Optical Physics Vol. 55 (eds Arimondo, E., Berman, P. R. & Lin, C. C.) 419-463 (Academic Press, 2008).
31. Hill, S. & Wootters, W. K. Entanglement of a pair of quantum bits. Phys. Rev. Lett. 78, 5022-5025 (1997).