Results 51 to 60 of about 745,886 (317)

A panoply of quantum algorithms [PDF]

open access: yesQuantum Information and Computation, 2008
This paper's aim is to explore improvements to, and applications of, a fundamental quantum algorithm invented by Grover\cite{grover}. Grover's algorithm is a basic tool that can be applied to a large number of problems in computer science, creating quantum algorithms that are polynomially faster than fastest known and fastest possible classical ...
openaire   +4 more sources

Improving quantum algorithms for quantum chemistry [PDF]

open access: yesQuantum Information and Computation, 2015
We present several improvements to the standard Trotter-Suzuki based algorithms used in the simulation of quantum chemistry on a quantum computer. First, we modify how Jordan-Wigner transformations are implemented to reduce their cost from linear or logarithmic in the number of orbitals to a constant.
Dave Wecker   +3 more
openaire   +3 more sources

Multiscale quantum algorithms for quantum chemistry

open access: yesChemical Science, 2023
We propose a multiscale quantum computing framework suitable for efficient simulations of complex chemical systems on near-term quantum devices.
Huan Ma   +5 more
openaire   +2 more sources

Implementation of Classic Image Transformation Algorithm to Quantum State, Boundary Extraction and Transformation of Half-Tone Image to Binary

open access: yesCybernetics and Information Technologies, 2020
The aim of the research is computer simulation of a quantum algorithm to solve the problem of transforming a classical image using quantum computing tools and methods, studying recognition algorithms and creating a recognition model using quantum methods.
Gushanskiy Sergey   +2 more
doaj   +1 more source

Measuring the Tangle of Three-Qubit States

open access: yesEntropy, 2020
We present a quantum circuit that transforms an unknown three-qubit state into its canonical form, up to relative phases, given many copies of the original state.
Adrián Pérez-Salinas   +3 more
doaj   +1 more source

Advancing hybrid quantum–classical computation with real-time execution

open access: yesFrontiers in Physics, 2022
The use of mid-circuit measurement and qubit reset within quantum programs has been introduced recently and several applications demonstrated that perform conditional branching based on these measurements.
Thomas Lubinski   +6 more
doaj   +1 more source

Applying Grover's Algorithm to Hash Functions: A Software Perspective

open access: yesIEEE Transactions on Quantum Engineering, 2022
Quantum software frameworks provide software engineers with the tools to study quantum algorithms as applied to practical problems. We implement classical hash functions MD5, SHA-1, SHA-2, and SHA-3 as quantum oracles to study the computational resource ...
Richard H. Preston
doaj   +1 more source

A method for measuring spatial resolution based on clinical chest CT sequence images

open access: yesJournal of Applied Clinical Medical Physics, EarlyView.
Abstract Purpose This study aimed to develop and validate a method for characterizing the spatial resolution of clinical chest computed tomography (CT) sequence images. Methods An algorithm for characterizing spatial resolution based on clinical chest CT sequence images was developed in Matlab (2021b).
Ying Liu   +3 more
wiley   +1 more source

Variational Learning for Quantum Artificial Neural Networks

open access: yesIEEE Transactions on Quantum Engineering, 2021
In the past few years, quantum computing and machine learning fostered rapid developments in their respective areas of application, introducing new perspectives on how information processing systems can be realized and programmed.
Francesco Tacchino   +6 more
doaj   +1 more source

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