Results 61 to 70 of about 2,637,115 (207)

Learning density functionals from noisy quantum data

Machine Learning: Science and Technology
The search for useful applications of noisy intermediate-scale quantum (NISQ) devices in quantum simulation has been hindered by their intrinsic noise and the high costs associated with achieving high accuracy.
Emiel Koridon, Felix Frohnert, Eric Prehn, Evert van Nieuwenburg, Jordi Tura, Stefano Polla   +5 more
doaj   +1 more source

NISQ-compatible approximate quantum algorithm for unconstrained and constrained discrete optimization

, 2023
Funding Information: We thank Dr. Margarita Veshchezerova, Dr. Alexey Melnikov, Vishal Shete, and Karan Pinto for their valuable discussions and suggestions.
Kreidich, I., Melnikov, Ar A., Podobrii, M., Nuriev, B., Iudin, S., Termanova, A., Mansell, C. W., Vinokur, V. M., Pakhomchik, A. I., Perelshtein, M. R., Melnikov, Ar. A.   +10 more
core   +1 more source

Stabilization of Strongly Reduced Fe(I) Single Atom Species Coordinated in a 2D Self‐Assembled Metal–Organic Network

Advanced Functional Materials, EarlyView.
A graphene‐supported 2D metal–organic network stabilizes highly reactive Fe(I)‐N4 single sites through Co‐induced charge redistribution. Combined experiments and theory reveal Fe(I) formation, oxygen‐driven oxidation, and O2 activation mechanisms, offering a strategy to access low‐valent iron centers relevant to catalytic and biological processes ...
Alessandro Namar, Basant Roondhe, Michela De Col, Stefania Baronio, Matteo Jugovac, Mattia Scardamaglia, Eleanor Frampton, Nikolay Vinogradov, Paolo Giannozzi, Erik Vesselli   +9 more
wiley   +1 more source

A novel quantum algorithm for ant colony optimisation

IET Quantum Communication, 2022
Ant colony optimisation (ACO) is a commonly used meta‐heuristic to solve complex combinatorial optimisation problems like the travelling salesman problem (TSP), vehicle routing problem (VRP) etc.
Mrityunjay Ghosh, Nivedita Dey, Debdeep Mitra, Amlan Chakrabarti   +3 more
doaj   +1 more source

Role of Structural Disorder on Phonon Transport and Thermal Conductivity in Li6PS5Br

Advanced Functional Materials, EarlyView.
Solid electrolytes are fast ion and slow heat conductors. Although both transport properties are governed by lattice dynamics and atomic structure, their interplay remains poorly understood. Here, we study this interrelation in anion‐ordered and disordered Li6PS5Br.
Lukas Ketter, Ryoma Sasaki, Kyra Strotmann, Wolfgang G. Zeier, Yoshitaka Tateyama   +4 more
wiley   +1 more source

Quantum generative modeling for financial time series with temporal correlations

Machine Learning: Science and Technology
Quantum generative adversarial networks (QGANs) have been investigated as a method for generating synthetic data with the goal of augmenting training data sets for neural networks. This is especially relevant for financial time series, since we only ever
David Dechant, Eliot Schwander, Lucas van Drooge, Charles Moussa, Diego Garlaschelli, Vedran Dunjko, Jordi Tura   +6 more
doaj   +1 more source

Dynamic Observation of Lacy Pattern Formation in a Bone Tissue Model Using Liquid Phase Scanning Transmission Electron Microscopy

Advanced Functional Materials, EarlyView.
Here, we establish a low‐dose liquid‐phase electron microscopy workflow for real‐time observation of biological processes in hydrated conditions. Beam damage is reduced by imaging only 20% of the pixels and reconstructing the complete image using an inpainting algorithm.
Luco Rutten, Avital Wagner, Rona Roverts, Luco Buise, Ben Joosten, Anat Akiva, Elena Macías‐Sánchez, Nico Sommerdijk   +7 more
wiley   +1 more source

Is Entanglement Sufficient to Enable Quantum Speedup? [PDF]

, 2012
According to the Gottesman-Knill theorem, any quantum algorithm utilising operations chosen exclusively from a particular restricted set are efficiently simulable by a classical computer.
Cuffaro, Michael
core  

Self‐Powered, Ultra‐Sensitive InGaAs/ITO Nanowire Radial Junction Infrared Photodiode for Low Flux Imaging at Room Temperature

Advanced Functional Materials, EarlyView.
This study reports a self‐powered InGaAs nanowire photodetector achieving single‐photon‐level sensitivity in the shortwave infrared at non‐cryogenic temperatures. The device demonstrates high‐speed imaging capabilities even under extremely low‐flux conditions.
Kosala Dhanawansha, Chaohao Chen, Zhe Li, Tuomas Haggren, Dawei Liu, Yang Yu, Baolei Liu, Sanjay Krishna, Hark H. Tan, Chennupati Jagadish, Lan Fu   +10 more
wiley   +1 more source

Optimising entanglement distribution policies under classical communication constraints assisted by reinforcement learning

Machine Learning: Science and Technology
Quantum repeaters play a crucial role in the effective distribution of entanglement over long distances. The nearest-future type of quantum repeater requires two operations: entanglement generation across neighbouring repeaters and entanglement swapping ...
Jan Li, Tim Coopmans, Patrick Emonts, Kenneth Goodenough, Jordi Tura, Evert van Nieuwenburg   +5 more
doaj   +1 more source