Results 31 to 40 of about 6,663 (226)

High-fidelity quantum information transmission using a room-temperature nonrefrigerated lossy microwave waveguide

open access: yesScientific Reports, 2022
Quantum microwave transmission is key to realizing modular superconducting quantum computers and distributed quantum networks. A large number of incoherent photons are thermally generated within the microwave frequency spectrum.
Montasir Qasymeh, Hichem Eleuch
doaj   +1 more source

Quantum counterparts of VIIα, IIIα=1, VIα≠1 over the harmonic oscillator in semiclassical approximation; pp. 347–354 [PDF]

open access: yesProceedings of the Estonian Academy of Sciences, 2010
Operadic Lax representations for the harmonic oscillator are used to construct the quantum counterparts of some real 3-dimensional Lie algebras. The Jacobi operators of these quantum algebras are studied in semiclassical approximation.
Eugen Paal, Jüri Virkepu
doaj   +1 more source

Quantum Harmonic Oscillator

open access: yes, 2019
Quantum harmonic oscillator (QHO) involves square law potential (x2) in the Schrodinger equation and is a fundamental problem in quantum mechanics. It can be solved by various conventional methods such as (i) analytical methods where Hermite polynomials are involved, (ii) algebraic methods where ladder operators are involved, and (iii) approximation ...
Arno Bohm   +2 more
openaire   +3 more sources

Semiclassical superoscillations: interference, evanescence, post-WKB

open access: yesNew Journal of Physics, 2021
The concept of superoscillations is extended beyond bandlimited functions, to include monochromatic waves in space-varying media, such as wavefunctions representing quantum particles in non-constant potentials.
M V Berry, Pragya Shukla
doaj   +1 more source

Evolving Probability Representations of Entangled Cat States in the Potentials of Harmonic and Inverted Oscillators

open access: yesQuantum Reports
We determine the evolving probability representation of entangled cat states in the potential of either the harmonic oscillator or the inverted oscillator, assuming that the states are initially prepared in the potential of the harmonic oscillator.
Matyas Mechler   +3 more
doaj   +1 more source

On a hidden symmetry of quantum harmonic oscillators [PDF]

open access: yesJournal of Difference Equations and Applications, 2013
11 pages, 20 ...
Lopez, Raquel M.   +2 more
openaire   +2 more sources

Discretized representations of harmonic variables by bilateral Jacobi operators

open access: yesDiscrete Dynamics in Nature and Society, 2000
Starting from a discrete Heisenberg algebra we solve several representation problems for a discretized quantum oscillator in a weighted sequence space. The Schrödinger operator for a discrete harmonic oscillator is derived. The representation problem for
Andreas Ruffing
doaj   +1 more source

Si‐Doped Nanocrystalline Diamond as Highly Sensitive Luminescence Thermometer for the Physiological Temperature Range

open access: yesAdvanced Functional Materials, EarlyView.
In this work, diamonds with negative charged silicon‐vacancy (SiV−) centers have been designed for use as thermometers in biomedical applications. Multiparametric analysis of the emission characteristics of the SiV− centers provides extraordinary sensitivity for temperature detection in the physiological temperature range.
María Gragera   +6 more
wiley   +1 more source

Quantum Harmonic Oscillator Systems with Disorder [PDF]

open access: yesJournal of Statistical Physics, 2012
We study many-body properties of quantum harmonic oscillator lattices with disorder. A sufficient condition for dynamical localization, expressed as a zero-velocity Lieb-Robinson bound, is formulated in terms of the decay of the eigenfunction correlators for an effective one-particle Hamiltonian.
Nachtergaele, Bruno   +2 more
openaire   +5 more sources

Tailored Diketopyrrolopyrrole Derivatives for Efficient Deep‐Red Organic Lasers

open access: yesAdvanced Functional Materials, EarlyView.
Tailored diketopyrrolopyrrole derivatives exhibit high stable amplified spontaneous emission with single or dual bands. Incorporated into distributed‐feedback lasers based on one‐ and two‐dimensional dichromated‐gelatin diffractive gratings, these materials provide a robust, flexible platform for integrated organic deep‐red light sources. ABSTRACT Deep‐
Pablo Pasqués‐Gramage   +10 more
wiley   +1 more source

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