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Quantum Information Processing

Configurable sublinear circuits for quantum state preparation

  • 01-02-2023
Published in:
Authors
Israel F. Araujo
Daniel K. Park
Teresa B. Ludermir
Wilson R. Oliveira
Francesco Petruccione
Adenilton J. da Silva
Published in
Quantum Information Processing | Issue 2/2023

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Abstract

The article introduces a novel quantum state preparation method that combines top-down and bottom-up strategies to achieve sublinear scaling in both quantum circuit depth and width. This bidirectional approach allows for configurable trade-offs between computational time and space, making it particularly advantageous for Noisy Intermediate-Scale Quantum (NISQ) devices. The method is validated through experiments on various quantum devices, demonstrating its potential to enhance the efficiency of quantum state preparation for a wide range of applications, including Quantum Machine Learning and Quantum Linear Algebra. The paper also provides a detailed analysis of the complexity and performance of the bidirectional method, highlighting its advantages over existing state preparation techniques.
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previous article n-qubit operations on sphere and queueing scaling limits for programmable quantum computer
next article General monogamy and polygamy properties of quantum systems
Title
Configurable sublinear circuits for quantum state preparation
Authors
Israel F. Araujo
Daniel K. Park
Teresa B. Ludermir
Wilson R. Oliveira
Francesco Petruccione
Adenilton J. da Silva
Publication date
01-02-2023
Publisher
Springer US
Published in
Quantum Information Processing / Issue 2/2023
Print ISSN: 1570-0755
Electronic ISSN: 1573-1332
DOI
https://doi.org/10.1007/s11128-023-03869-7
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Other articles of this Issue 2/2023

On the distillability problem of two-copy Werner states: matrices A, B of at most four nonzero entries

Statistical fluctuation analysis for decoy-state quantum secure direct communication

Improved FRQI on superconducting processors and its restrictions in the NISQ era

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Hierarchical controlled remote preparation of an arbitrary m-qudit state with four-qudit cluster states

A novel quantum identity authentication protocol without entanglement and preserving pre-shared key information

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