Results 91 to 100 of about 504,986 (312)

A Key Fragment in Carbon Schwarzite Unit Cells and Its Triple [6]Helicene Precursor

open access: yesAngewandte Chemie, EarlyView.
Adjusting the conditions of Scholl reactions has enabled the selective synthesis of polycyclic arenes with two related π‐skeletons. One π‐skeleton is a key fragment of theoretical carbon schwarzites, while the other is a triple [6]helicene, which exhibits unique supramolecular structures in the clathrate with chloroform and an absorption dissymmetry ...
Xinhe Yang   +9 more
wiley   +2 more sources

Self‐Detecting Mid‐Infrared Dual‐Comb Spectroscopy Based on High‐Speed Injection‐Locked Quantum Cascade Lasers

open access: yesAdvanced Photonics Research, EarlyView.
A compact self‐detecting dual‐comb spectroscopy (DCS) system based on dispersion‐engineered, high‐speed packaged quantum cascade lasers (QCLs) at λ≈4.6 μm under coherent injection locking is demonstrated. Broad multiheterodyne comb signal with reduced tooth linewidths by orders of magnitude is recorded.
Yu Ma   +14 more
wiley   +1 more source

Harmonic Oscillator SUSY Partners and Evolution Loops

open access: yesSymmetry, Integrability and Geometry: Methods and Applications, 2012
Supersymmetric quantum mechanics is a powerful tool for generating exactly solvable potentials departing from a given initial one. If applied to the harmonic oscillator, a family of Hamiltonians ruled by polynomial Heisenberg algebras is obtained.
David J. Fernández
doaj   +1 more source

Analysis of Electronic Structure and Binding Energy in Five‐Electron GaAs/AlxGa1‐xAs Quantum Dots Under Penetrable Confinement Potential

open access: yesAdvanced Theory and Simulations, EarlyView.
This study analyses the electronic structure of five‐electron spherical quantum dots with penetrable confinement potential. Spatial confinement and the influence of potential barrier height give rise to the unique properties of quantum dots. These effects lead to profound changes in their energy spectra and optical properties which play a key role in ...
Yusuf Yakar, Bekir Çakır, Ayhan Özmen
wiley   +1 more source

Deterministic nonlinear phase gates induced by a single qubit

open access: yesNew Journal of Physics, 2018
We propose deterministic realizations of nonlinear phase gates by repeating a finite sequence of non-commuting Rabi interactions between a harmonic oscillator and only a single two-level ancillary qubit.
Kimin Park, Petr Marek, Radim Filip
doaj   +1 more source

Multipartite Entanglement Generation in a Structured Environment

open access: yesEntropy, 2020
In this paper, we investigate the entanglement generation of n-qubit states in a model consisting of n independent qubits, each coupled to a harmonic oscillator which is in turn coupled to a bath of N additional harmonic oscillators with nearest-neighbor
Shijiao Wang   +2 more
doaj   +1 more source

Monolithic 3D Oscillatory Ising Machine Using Reconfigurable FeFET Routing for Large‐Scalability and Low‐Power Consumption

open access: yesAdvanced Science, EarlyView.
This paper introduces a novel M3D Oscillatory Ising Machine (OIM) utilizing FeFETs as in‐memory routing switches and biristors as oscillators. The system achieves precise control, scalability, and low power consumption, solving complex optimization problems like MaxCUT problem.
Joon Pyo Kim   +8 more
wiley   +1 more source

Total free energy analysis of fully hydrated proteins

open access: yesProteins: Structure, Function, and Bioinformatics, Volume 91, Issue 1, Page 74-90, January 2023., 2023
Abstract The total free energy of a hydrated biomolecule and its corresponding decomposition of energy and entropy provides detailed information about regions of thermodynamic stability or instability. The free energies of four hydrated globular proteins with different net charges are calculated from a molecular dynamics simulation, with the energy ...
Jas Kalayan   +3 more
wiley   +1 more source

A quantum heat machine from fast optomechanics

open access: yesNew Journal of Physics, 2020
We consider a thermodynamic machine in which the working fluid is a quantized harmonic oscillator that is controlled on timescales that are much faster than the oscillator period.
James S Bennett   +3 more
doaj   +1 more source

A Full-Fledged Analytical Solution to the Quantum Harmonic Oscillator for Undergraduate Students of Science and Engineering

open access: yesPhysics, 2020
The quantum harmonic oscillator is a fundamental piece of physics. In this paper, we present a self-contained full-fledged analytical solution to the quantum harmonic oscillator.
Arturo Rodríguez-Gómez   +1 more
doaj   +1 more source

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