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Quantum isomer search.

open access: yesPLoS ONE, 2020
Isomer search or molecule enumeration refers to the problem of finding all the isomers for a given molecule. Many classical search methods have been developed in order to tackle this problem.
Jason P Terry   +3 more
doaj   +5 more sources

Electric-Circuit Realization of Fast Quantum Search [PDF]

open access: yesResearch, 2021
Quantum search algorithm, which can search an unsorted database quadratically faster than any known classical algorithms, has become one of the most impressive showcases of quantum computation. It has been implemented using various quantum schemes. Here,
Naiqiao Pan   +3 more
doaj   +2 more sources

Edge States, Bulk Spectra, and Topological Phases of Szegedy’s Quantum Search on a One-Dimensional Cycle with Self-Loops [PDF]

open access: yesEntropy
Topological transitions are relevant for boundary conditions. Therefore, we investigate the bulk spectra, edge states, and topological phases of Szegedy’s quantum search on a one-dimensional (1D) cycle with self-loops, where the search operator can be ...
Mengke Xu   +4 more
doaj   +2 more sources

Fault-ignorant quantum search

open access: yesNew Journal of Physics, 2014
We investigate the problem of quantum searching on a noisy quantum computer. Taking a fault-ignorant approach, we analyze quantum algorithms that solve the task for various different noise strengths, which are possibly unknown beforehand.
Péter Vrana   +3 more
doaj   +6 more sources

Quantum global minimum finder based on variational quantum search [PDF]

open access: yesScientific Reports
The search for global minima is a critical challenge across multiple fields including engineering, finance, and artificial intelligence, particularly with non-convex functions that feature multiple local optima, complicating optimization efforts.
Mohammadreza Soltaninia, Junpeng Zhan
doaj   +2 more sources

Design of Grover’s Algorithm over 2, 3 and 4-Qubit Systems in Quantum Programming Studio [PDF]

open access: yesInternational Journal of Electronics and Telecommunications, 2022
In this paper, we design and analyse the Circuit for Grover’s Quantum Search Algorithm on 2, 3 and 4-qubit systems, in terms of number of gates, representation of state vectors and measurement probability for the state vectors.
Diana Jingle   +4 more
doaj   +1 more source

A Machine Learning Study of High Robustness Quantum Walk Search Algorithm with Qudit Householder Coins

open access: yesAlgorithms, 2023
In this work, the quantum random walk search algorithm with a walk coin constructed by generalized Householder reflection and phase multiplier has been studied. The coin register is one qudit with an arbitrary dimension.
Hristo Tonchev, Petar Danev
doaj   +1 more source

Quantum circuit design search [PDF]

open access: yesQuantum Machine Intelligence, 2021
This article explores search strategies for the design of parameterized quantum circuits. We propose several optimization approaches including random search plus survival of the fittest, reinforcement learning both with classical and hybrid quantum classical controllers and Bayesian optimization as decision makers to design a quantum circuit in an ...
Mohammad Pirhooshyaran, Tamás Terlaky
openaire   +2 more sources

Uncertainty Relation between Detection Probability and Energy Fluctuations

open access: yesEntropy, 2021
A classical random walker starting on a node of a finite graph will always reach any other node since the search is ergodic, namely it fully explores space, hence the arrival probability is unity.
Felix Thiel   +3 more
doaj   +1 more source

Generalised Quantum Tree Search [PDF]

open access: yes2021 IEEE/ACM 2nd International Workshop on Quantum Software Engineering (Q-SE), 2021
This extended abstract reports on on-going research on quantum algorithmic approaches to the problem of generalised tree search that may exhibit effective quantum speedup, even in the presence of non-constant branching factors. Two strategies are briefly summarised and current work outlined.
Sequeira, André Manuel Resende   +2 more
openaire   +3 more sources

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