Results 31 to 40 of about 2,304,054 (358)

Quantum-Sized Zinc Oxide Nanoparticles Synthesised within Mesoporous Silica (SBA-11) by Humid Thermal Decomposition of Zinc Acetate

open access: yesCrystals, 2020
A modified facile method is presented to synthesise quantum-sized zinc oxide nanoparticles within the pores of a mesoporous silica host (SBA-11). This method eliminates the 3 h alcohol reflux and the basic solution reaction steps of zinc acetate.
Tariq Aqeel, Heather F. Greer
doaj   +1 more source

Quantum walks, quantum gates, and quantum computers [PDF]

open access: yesPhysical Review A, 2007
The physics of quantum walks on graphs is formulated in Hamiltonian language, both for simple quantum walks and for composite walks, where extra discrete degrees of freedom live at each node of the graph. It is shown how to map between quantum walk Hamiltonians and Hamiltonians for qubit systems and quantum circuits; this is done for both a single- and
Andrew P. Hines   +2 more
openaire   +2 more sources

QUANTUM PARTICLE ON A QUANTUM CIRCLE [PDF]

open access: yesModern Physics Letters A, 1993
We describe a q-deformed dynamical system corresponding to the quantum free particle moving along the circle. The algebra of the observables is constructed and discussed. We construct and classify irreducible representations of the system.
K.A. Smolinski   +2 more
openaire   +3 more sources

Quantum Cryptography—A Simplified Undergraduate Experiment and Simulation

open access: yesPhysics, 2022
Quantum cryptography is a topic of considerable interest. A simple and robust experiment and theory for a senior level undergraduate investigation of quantum key distribution are described.
Yuval Bloom   +3 more
doaj   +1 more source

Quantum curves as quantum distributions [PDF]

open access: yesJournal of High Energy Physics, 2019
Abstract Topological strings on toric Calabi-Yau threefolds can be defined non-perturbatively in terms of a non-interacting Fermi gas of N particles. Using this approach, we propose a definition of quantum mirror curves as quantum distributions on phase space.
Mariño, Marcos, Zakany, Szabolcs
openaire   +6 more sources

Quantum instantons and quantum chaos [PDF]

open access: yesPhysics Letters A, 2001
Extended version with new figures. Text (LaTeX), 5 Figures (epsi files)
K.J.M. Moriarty   +4 more
openaire   +3 more sources

Identification of Image Edge Using Quantum Canny Edge Detection Algorithm

open access: yesJournal of ICT Research and Applications, 2019
Identification of image edges using edge detection is done to obtain images that are sharp and clear. The selection of the edge detection algorithm will affect the result.
Dini Sundani   +3 more
doaj   +1 more source

Quantum space and quantum completeness [PDF]

open access: yesJournal of High Energy Physics, 2018
Abstract Motivated by the question whether quantum gravity can “smear out” the classical singularity we analyze a certain quantum space and its quantum-mechanical completeness. Classical singularity is understood as a geodesic incompleteness, while quantum completeness requires a unique unitary time evolution for test fields ...
openaire   +5 more sources

Quantum Inequalities in Quantum Mechanics [PDF]

open access: yesAnnales Henri Poincaré, 2005
We study a phenomenon occuring in various areas of quantum physics, in which an observable density (such as an energy density) which is classically pointwise nonnegative may assume arbitrarily negative expectation values after quantisation, even though the spatially integrated density remains nonnegative.
S. P. Eveson   +2 more
openaire   +3 more sources

BSIM-CMG compact model for IC CAD: from FinFET to Gate-All-Around FET Technology

open access: yesJournal of Microelectronic Manufacturing, 2020
We discuss the BSIM-CMG compact model for SPICE simulations of any common multi-gate (CMG) device. This is an industry standard model which has been used extensively for FinFETs IC design and simulation, and has now been extended to accurately model gate-
Avirup Dasgupta, Chenming Hu
doaj   +1 more source

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