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Circuit for Shor's algorithm using 2n+3 qubits

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arxiv quant-ph/0205095 v3 pith:2WW2AJDY submitted 2002-05-15 quant-ph

classification quant-ph
keywords algorithmcircuitquantumqubitscomputerfactorizationnumbershor
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We try to minimize the number of qubits needed to factor an integer of n bits using Shor's algorithm on a quantum computer. We introduce a circuit which uses 2n+3 qubits and O(n^3 lg(n)) elementary quantum gates in a depth of O(n^3) to implement the factorization algorithm. The circuit is computable in polynomial time on a classical computer and is completely general as it does not rely on any property of the number to be factored. Keywords: Factorization, quantum circuits, modular arithmetics

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Cited by 3 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Implementation and Analysis of Regev's Quantum Factorization Algorithm

    quant-ph 2025-02 conditional novelty 6.0 of 10

    A new implementation of Regev's quantum factoring algorithm runs slower than Shor's on small numbers and only beats Shor's effectiveness for selected inputs after per-number parameter tuning.

  2. Universal Matrix Multiplication on Quantum Computer

    quant-ph 2024-08 unverdicted novelty 5.0 of 10

    Proposes a QFT-based quantum matrix multiplication framework claiming O(n) adder and O(n²) multiplier gate complexity plus a quantum Strassen variant for potential ML acceleration.

  3. Efficient Quantum Oracle for Solving Bilinear Diophantine Equations on Digital Quantum Computers

    physics.gen-ph 2023-12 unverdicted novelty 5.0 of 10

    Presents a concrete quantum oracle for bilinear Diophantine equations enabling factoring of n-bit biprimes with 2n-5 qubits or fewer and near-100% simulated success for numbers up to 35 bits.

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