Results 61 to 70 of about 6,569,328 (328)

A quantum active learning algorithm for sampling against adversarial attacks

open access: yesNew Journal of Physics, 2020
Adversarial attacks represent a serious menace for learning algorithms and may compromise the security of future autonomous systems. A theorem by Khoury and Hadfield-Menell (KH), provides sufficient conditions to guarantee the robustness of active ...
P A M Casares, M A Martin-Delgado
doaj   +1 more source

Quantum Algorithm for Systems of Linear Equations with Exponentially Improved Dependence on Precision [PDF]

open access: yesSIAM journal on computing (Print), 2015
Harrow, Hassidim, and Lloyd [Phys. Rev. Lett., 103 (2009), 150502] showed that for a suitably specified $N \times N$ matrix $A$ and an $N$-dimensional vector $\vec{b}$, there is a quantum algorithm that outputs a quantum state proportional to the ...
Andrew M. Childs   +2 more
semanticscholar   +1 more source

Optimal Multi-Bit Toffoli Gate Synthesis

open access: yesIEEE Access, 2023
Multi-bit Toffoli gates form an essential quantum gate class for quantum algorithms. They should be efficiently decomposed into elementary single- or multi-qubit quantum gates, such as CNOT, T, and Hadarmard, for a scalable implementation of a quantum ...
Young-Min Jun, In-Chan Choi
doaj   +1 more source

Systematic Analysis of Majorization in Quantum Algorithms [PDF]

open access: yes, 2002
Motivated by the need to uncover some underlying mathematical structure of optimal quantum computation, we carry out a systematic analysis of a wide variety of quantum algorithms from the majorization theory point of view.
Latorre, Jose I.   +2 more
core   +2 more sources

Quantum Algorithm for Simulating Real Time Evolution of Lattice Hamiltonians [PDF]

open access: yesIEEE Annual Symposium on Foundations of Computer Science, 2018
We study the problem of simulating the time evolution of a lattice Hamiltonian, where the qubits are laid out on a lattice and the Hamiltonian only includes geometrically local interactions (i.e., a qubit may only interact with qubits in its vicinity ...
Jeongwan Haah   +3 more
semanticscholar   +1 more source

A Hybrid Quantum Encoding Algorithm of Vector Quantization for Image Compression

open access: yes, 2006
Many classical encoding algorithms of Vector Quantization (VQ) of image compression that can obtain global optimal solution have computational complexity O(N).
Grover L K   +11 more
core   +1 more source

Quantum Misuse Attack on Frodo

open access: yesEntropy, 2022
Research on the security of lattice-based public-key encryption schemes against misuse attacks is an important part of the cryptographic assessment of the National Institute of Standards and Technology (NIST) post-quantum cryptography (PQC ...
Yaru Wang, Haodong Jiang, Zhi Ma
doaj   +1 more source

Quantum image classification using principal component analysis

open access: yes, 2015
We present a novel quantum algorithm for classification of images. The algorithm is constructed using principal component analysis and von Neuman quantum measurements.
Gawron, Piotr   +2 more
core   +1 more source

Resource-efficient quantum algorithm for protein folding [PDF]

open access: yesnpj Quantum Information, 2019
Predicting the three-dimensional structure of a protein from its primary sequence of amino acids is known as the protein folding problem. Due to the central role of proteins’ structures in chemistry, biology and medicine applications, this subject has ...
A. Robert   +3 more
semanticscholar   +1 more source

Quantum algorithm for the Vlasov equation [PDF]

open access: yesPhysical Review A, 2019
The Vlasov-Maxwell system of equations, which describes classical plasma physics, is extremely challenging to solve, even by numerical simulation on powerful computers. By linearizing and assuming a Maxwellian background distribution function, we convert
A. Engel, Graeme Smith, S. Parker
semanticscholar   +1 more source

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