Results 81 to 90 of about 23,116,968 (338)

Quantum transport and control of a classically chaotic open system

open access: yesResults in Physics, 2020
We report on the first direct investigation of quantum transport and control of a classically chaotic open system which means a single atom held in an open and depth-tilt-modulated one-dimensional (1D) optical lattice.
Mingliang Zou   +3 more
doaj   +1 more source

Modeling Electronic Quantum Transport with Machine Learning [PDF]

open access: yes, 2014
We present a Machine Learning approach to solve electronic quantum transport equations of one-dimensional nanostructures. The transmission coefficients of disordered systems were computed to provide training and test datasets to the machine. The system's
Lopez-Bezanilla, Alejandro   +1 more
core   +2 more sources

Unsupervised Generative Modeling Using Matrix Product States [PDF]

open access: yesPhysical Review X, 2017
Generative modeling, which learns joint probability distribution from data and generates samples according to it, is an important task in machine learning and artificial intelligence.
Zhaoyu Han   +4 more
semanticscholar   +1 more source

Quantum Computer: Quantum Model and Reality [PDF]

open access: yesSSRN Electronic Journal, 2020
Any computer can create a model of reality. The hypothesis that quantum computer can generate such a model designated as quantum, which coincides with the modeled reality, is discussed. Its reasons are the theorems about the absence of “hidden variables” in quantum mechanics. The quantum modeling requires the axiom of choice.
openaire   +4 more sources

Quantum Hopfield Model [PDF]

open access: yesPhysics, 2020
We find the free-energy in the thermodynamic limit of a one-dimensional XY model associated to a system of N qubits. The coupling among the σ i z is a long range two-body random interaction. The randomness in the couplings is the typical interaction of the Hopfield model with p patterns ( p < N ), where the patterns are p sequences of ...
Shcherbina, Masha   +3 more
openaire   +4 more sources

Mechanochemical Synthesis and Characterization of Nanostructured ErB4 and NdB4 Rare‐Earth Tetraborides

open access: yesAdvanced Engineering Materials, Volume 27, Issue 6, March 2025.
ErB4 and NdB4 nanostructured powders are produced by mechanochemical synthesis. 5 h mechanical alloying and 4 M HCl acid leaching are used in the production. ErB4 and NdB4 powders exhibit maximum magnetization of 0.4726 emu g−1 accompanied with an antiferromagnetic‐to‐paramagnetic phase transition at about TN = 18 K and 0.132 emu g−1 with a maximum at ...
Burçak Boztemur   +5 more
wiley   +1 more source

Predictive URANS/PDF Modeling of Unsteady-State Phenomena in Turbulent Hydrogen–Air Flames

open access: yesFluids
The escalating global demand for primary energy—still predominantly met by conventional carbon-based fuels—has led to increased atmospheric pollution. This underscores the urgent need for alternative energy strategies capable of reducing carbon emissions
Mohamed Boukhelef   +4 more
doaj   +1 more source

Quantum Genetics, Quantum Automata and Quantum Computation [PDF]

open access: yes, 2004
The concepts of quantum automata and quantum computation are studied in the context of quantum genetics and genetic networks with nonlinear dynamics. In a previous publication (Baianu,1971a) the formal concept of quantum automaton was introduced and its ...
Baianu, Professor I. C.
core  

Modeling Quantum Gravity Effects in Inflation

open access: yes, 2014
Cosmological models in 1+1 dimensions are an ideal setting for investigating the quantum structure of inflationary dynamics -- gravity is renormalizable, while there is room for spatial structure not present in the minisuperspace approximation.
Martinec, Emil J., Moore, Wynton E.
core   +1 more source

Multilevel quantum Rabi models

open access: yesJournal of Physics A: Mathematical and Theoretical
Abstract The quantum Rabi model, which describes the interaction between a simplified atom and a mode of the electromagnetic field, is a cornerstone of modern quantum optics. One of the key assumptions of the model is that the ‘atom’ is a perfect two-level system.
Tabitha Doicin   +2 more
openaire   +3 more sources

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