Cited by 632Quantum Computing Algorithms and ArchitectureQuantum Mechanics and ApplicationsQuantum Information and Cryptography

Quantum search by local adiabatic evolution

Open access
Roland, Jérémie, Cerf, Nicolas J.·2002·Physical Review A

Abstract

The adiabatic theorem has been recently used to design quantum algorithms of a new kind, where the quantum computer evolves slowly enough so that it remains near its instantaneous ground state, which tends to the solution. We apply this time-dependent Hamiltonian approach to Grover's problem, i.e., searching a marked item in an unstructured database. We find that by adjusting the evolution rate of the Hamiltonian so as to keep the evolution adiabatic on each infinitesimal time interval, the total running time is of order $\sqrt{N},$ where N is the number of items in the database. We thus recover the advantage of Grover's standard algorithm as compared to a classical search, scaling as N. This is in contrast with the constant-rate adiabatic approach of Farhi et al. (e-print quant-ph/0001106), where the requirement of adiabaticity is expressed only globally, resulting in a time of order N.

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Integrity signals

Registry

Crossref · 10.1103/physreva.65.042308

Cites

8 of 8 references verified0 citation errors · 0 not checkable

Statistics

Claims the paper makes

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

  • The optimal control method achieved a transfer time faster than that obtained for Ising coupling in Ref. [19].

    “It is also worth mentioning that we achieved a transfer time faster than that obtained (for Ising coupling) in Ref. [19].”

    From Optimal Control at the Quantum Speed Limit (2009) · cites this paper as [19]

  • The optimal control method uses only single-site local pulses, whereas the method in Ref. [19] used global pulses operating jointly on the whole chain.

    “Interestingly enough, however, our method only uses single-site local pulses while in Ref. [19] this was achieved using global pulses that operate jointly on the whole chain.”

    From Optimal Control at the Quantum Speed Limit (2009) · cites this paper as [19]

Self-check

Percentages, sums and reported differences re-computed from the paper’s own numbers.

The self-check needs the paper’s full text.

Cites

Flagged first, then by citations

1 of the 9 references couldn’t be matched to a known paper.

Cited by

Sorted by citations

Authors
Roland, J., & Cerf, N. J.
Affiliations
  • Université Libre de Bruxelles (BE)
  • California Institute of Technology (US)
Venue
Physical Review A
Published
2002-03-26
Volume
65
Issue
4
ISSN
  • 0556-2791 (ISSN-L)
  • 1050-2947
  • 1094-1622
OpenAlex
W2155521441
Cited by
629
References
9
Citations by year
2026: 29 · 2025: 50 · 2024: 35 · 2023: 26 · 2022: 43 · 2021: 35 · 2020: 34 · 2019: 44 · 2018: 28 · 2017: 16 · 2016: 28 · 2015: 24 · 2014: 30 · 2013: 17 · 2012: 26
FWCI
13.10
Type
journal article
Language
en
Open access
Locations
  • Physical Review A (publishedVersion)
  • arXiv (Cornell University) (submittedVersion)
  • CERN Document Server (European Organization for Nuclear Research) (submittedVersion)
  • Dépôt institutionnel de l'Université libre de Bruxelles (Université Libre de Bruxelles) (submittedVersion)
  • arXiv (Cornell University)
Topics
  • Physical Sciences › Computer Science › Artificial Intelligence › Quantum Computing Algorithms and Architecture
  • Physical Sciences › Physics and Astronomy › Atomic and Molecular Physics, and Optics › Quantum Mechanics and Applications
  • Physical Sciences › Computer Science › Artificial Intelligence › Quantum Information and Cryptography
Keywords
quantum search, adiabatic quantum computation, Grover's algorithm, unstructured database search, time-dependent Hamiltonian, adiabaticity, evolutionary rates, ground state, quantum algorithms

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review