Experimental requirements for Grover's algorithm in optical quantum computation

Journal Article · Wed Oct 01 00:00:00 EDT 2003 · Physical Review. A

DOI:https://doi.org/10.1103/PhysRevA.68.042328· OSTI ID:20640315

Dodd, Jennifer L ^[1]; Ralph, Timothy C; Milburn, G J ^[2]

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1. Centre for Quantum Computer Technology, The University of Queensland, Queensland 4072 (Australia)
2. Centre for Quantum Computer Technology, University of Queensland, Queensland 4072 (Australia)

The field of linear optical quantum computation (LOQC) will soon need a repertoire of experimental milestones. We make progress in this direction by describing several experiments based on Grover's algorithm. These experiments range from a relatively simple implementation using only a single nonscalable controlled-NOT (CNOT) gate to the most complex, requiring two concatenated scalable CNOT gates, and thus form a useful set of early milestones for LOQC. We also give a complete description of basic LOQC using polarization-encoded qubits, making use of many simplifications to the original scheme of Knill, Laflamme, and Milburn [E. Knill, R. Laflamme, and G. J. Milburn, Nature (London) 409, 46 (2001)].

• OSTI ID: 20640315
• Journal Information: Physical Review. A, Vol. 68, Issue 4; Other Information: DOI: 10.1103/PhysRevA.68.042328; (c) 2003 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 1050-2947
• Country of Publication: United States
• Language: English

Related Subjects

74 ATOMIC AND MOLECULAR PHYSICS
ALGORITHMS
ENERGY LEVELS
GATING CIRCUITS
IMPLEMENTATION
INFORMATION THEORY
OPTICS
POLARIZATION
QUANTUM MECHANICS
QUANTUM OPERATORS