Experimental realization of Shor's quantum factoring algorithm using nuclear magnetic resonance

  title={Experimental realization of Shor's quantum factoring algorithm using nuclear magnetic resonance},
  author={Lieven M. K. Vandersypen and Matthias Steffen and Gregory Breyta and Costantino S. Yannoni and Mark H. Sherwood and Isaac L. Chuang},
The number of steps any classical computer requires in order to find the prime factors of an l-digit integer N increases exponentially with l, at least using algorithms known at present. Factoring large integers is therefore conjectured to be intractable classically, an observation underlying the security of widely used cryptographic codes. Quantum computers, however, could factor integers in only polynomial time, using Shor's quantum factoring algorithm. Although important for the study of… 

Factoring larger integers with fewer qubits via quantum annealing with optimized parameters

This study optimize the problem Hamiltonian to reduce the number of qubits involved in the final Hamiltonian while maintaining the QUBO coefficients in a reasonable range, enabling the improved algorithm to factorize larger integers with fewer qubits.

Exact search algorithm to factorize large biprimes and a triprime on IBM quantum computer

It has been concluded that the solution to this problem depends on the level of simplification chosen, not the size of the number factored, and in principle, the results can be extended to factorize any multi-prime integer with minimum quantum resources.

Realization of a scalable Shor algorithm

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Shor’s factoring algorithm and modern cryptography. An illustration of the capabilities inherent in quantum computers

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This work introduces a reduced version of Shor’s algorithm that proposes a step forward in increasing the range of numbers that can be factorized on noisy Quantum devices and finds noteworthy results in most cases.

Experimental realisation of Shor's quantum factoring algorithm using qubit recycling

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Demonstration of Shor's factoring algorithm for N [Formula: see text] 21 on IBM quantum processors.

This work implemented the quantum order-finding algorithm for factoring the integer 21 using only five qubits and successfully verified the presence of entanglement between the control and work register qubits, which is a necessary condition for the algorithm's speedup in general.

Quantum Factoring Algorithm: Resource Estimation and Survey of Experiments

  • N. Kunihiro
  • Computer Science
    International Symposium on Mathematics, Quantum Theory, and Cryptography
  • 2020
This study investigates the details of quantum circuits used in several factoring experiments and indicates that some of the circuits have been constructed under the condition that the order of an element modulo a target composite is known in advance.

Streamlining Shor's algorithm for potential hardware savings

We constructed a virtual quantum computer by running a complete, scaling, quantum-gate\char21{}by\char21{}quantum-gate implementation of Shor's algorithm on a 128-core classical cluster computer. In



Quantum Computers, Factoring, and Decoherence

Here it is shown how the decoherence process degrades the interference pattern that emerges from the quantum factoring algorithm, a problem of practical significance for cryptographic applications.

Algorithms for quantum computation: discrete logarithms and factoring

  • P. Shor
  • Computer Science
    Proceedings 35th Annual Symposium on Foundations of Computer Science
  • 1994
Las Vegas algorithms for finding discrete logarithms and factoring integers on a quantum computer that take a number of steps which is polynomial in the input size, e.g., the number of digits of the integer to be factored are given.

An algorithmic benchmark for quantum information processing

An experimental realization of an algorithmic benchmark using an NMR technique that involves coherent manipulation of seven qubits is reported, which can be used as a reliable and efficient method for creating a standard pseudopure state, the first step for implementing traditional quantum algorithms in liquid state NMR systems.

Polynomial-Time Algorithms for Prime Factorization and Discrete Logarithms on a Quantum Computer

  • P. Shor
  • Computer Science
    SIAM Rev.
  • 1999
Efficient randomized algorithms are given for factoring integers and finding discrete logarithms, two problems that are generally thought to be hard on classical computers and that have been used as the basis of several proposed cryptosystems.

Implementation of a three-quantum-bit search algorithm

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Ensemble quantum computing by NMR spectroscopy

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Molecular scale heat engines and scalable quantum computation

N procedure that extracts the asymptotically optimal fraction of purified bits is given, and a quasi-linear time implementation of the procedure is given in a model motivated by NMR quantum computing.

An approximate Fourier transform useful in quantum factoring", IBM Research Report RC19642 ,; R. Cle

We define an approximate version of the Fourier transform on $2^L$ elements, which is computationally attractive in a certain setting, and which may find application to the problem of factoring

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A brief introduction to the model of quantum computation and to its main success so far: Peter Shor's eecient quantum algorithm for factoring integers.

A silicon-based nuclear spin quantum computer

Quantum computers promise to exceed the computational efficiency of ordinary classical machines because quantum algorithms allow the execution of certain tasks in fewer steps. But practical