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Journal article

Approximate Quantum Fourier Transform and Decoherence

Abstract:
We discuss the advantages of using the approximate quantum Fourier transform (AQFT) in algorithms which involve periodicity estimations. We analyse quantum networks performing AQFT in the presence of decoherence and show that extensive approximations can be made before the accuracy of AQFT (as compared with regular quantum Fourier transform) is compromised. We show that for some computations an approximation may imply a better performance.

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Publisher copy:
10.1103/PhysRevA.54.139
Publication date:
1996-01-21
DOI:
Keywords:
Pubs id:
pubs:313229
UUID:
uuid:fd194172-7f65-41e3-9e93-b4dfab3a6e2c
Local pid:
pubs:313229
Source identifiers:
313229
Deposit date:
2012-12-19

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