Scalable quantum search using trapped ions

Journal Article · Thu Apr 15 00:00:00 EDT 2010 · Physical Review. A

DOI:https://doi.org/10.1103/PHYSREVA.81.042328· OSTI ID:21408587

Ivanov, S S ^[1]; Ivanov, P A ^[1]; Linington, I E ^[1]; Vitanov, N V ^[1]

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1. Department of Physics, Sofia University, James Bourchier 5 Boulevard, BG-1164 Sofia (Bulgaria)

We propose a scalable implementation of Grover's quantum search algorithm in a trapped-ion quantum information processor. The system is initialized in an entangled Dicke state by using adiabatic techniques. The inversion-about-average and oracle operators take the form of single off-resonant laser pulses. This is made possible by utilizing the physical symmetries of the trapped-ion linear crystal. The physical realization of the algorithm represents a dramatic simplification: each logical iteration (oracle and inversion about average) requires only two physical interaction steps, in contrast to the large number of concatenated gates required by previous approaches. This not only facilitates the implementation but also increases the overall fidelity of the algorithm.

• OSTI ID: 21408587
• Journal Information: Physical Review. A, Vol. 81, Issue 4; Other Information: DOI: 10.1103/PhysRevA.81.042328; (c) 2010 The American Physical Society; ISSN 1050-2947
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ALGORITHMS
CRYSTALS
IMPLEMENTATION
INTERACTIONS
IONS
LASERS
PULSES
QUANTUM ENTANGLEMENT
QUANTUM INFORMATION
SYMMETRY
TRAPPING
CHARGED PARTICLES
INFORMATION
MATHEMATICAL LOGIC