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ABSTRACT We demonstrate that the primary factor determining the external quantum efficiency (EQE) of InGaN‐based micro‐scale light‐emitting diodes (µLEDs) depends on their internal state. A comparative photolumine...

Abstract High-harmonic generation and ultrafast electron coherent control are central goals in modern strong-field physics. However, the problem of producing and manipulating electron-matter-wave pulses at zeptosecond ti...

Abstract Electrostatically tunable quantum confinement in nanoscale systems offers unprecedented opportunities for manipulating artificial quantum matter, positioning these platforms at the frontier of quantum science. T...

Abstract Detecting single photons is a crucial process in quantum science, quantum networking, biology, and advanced imaging. To detect the small quantum of energy carried in a photon, conventional mechanisms rely on ene...

Quando o artigo Uma proposta de interpretação da teoria quântica em termos de variáveis" escondidas", de autoria de David Bohm, foi publicado, ele estava no Brasil, na Universidade de São Paulo. Atingido pelo McCart...

NESTE artigo procura-se desenvolver um método para investigar histórias contrafactuais da ciência, isto é, histórias possíveis que não se realizaram. Desenvolvemos uma teoria da ciência baseada na noção de "ava...

Optical manipulation using electronic resonance can realize the selective manipulation of nano objects exhibiting quantum mechanical properties by confining electronic systems based on the characteristics of individual o...

The “Wigner’s Friend” thought experiment stands as one of the most intellectually provocative and challenging conceptual puzzles in quantum mechanics. It compels us to confront profound questions concerning the fun...

Quantum coherence properties are attractive for making a quantum computer, but they are easily destroyed by environmental disorder. This contribution examines a way of achieving a perfect electric wire of gallium arsenid...

Abstract High power bar laser diodes, with CW optical power output were studied experimentally. A novel mounting was designed to bring the coolant as close as possible to the laser bar in order to improve the bar laser d...

The aim of the present research is to design and study the performance of an optical system for the purpose of measuring the pressure, using semiconductor laser. A Commercial laser diode of 650 nm Wavelength and 3 mW pow...

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTQuantum Mechanical Continuum Solvation ModelsJacopo Tomasi, Benedetta Mennucci, and Roberto CammiView Author Information Dipartimento di Chimica e Chimica Industriale, Universi...

A new implementation of the conductor-like screening solvation model (COSMO) in the GAUSSIAN94 package is presented. It allows Hartree−Fock (HF), density functional (DF) and post-HF energy, and HF and DF gradient calcu...

Treballs Finals de Grau de Física, Facultat de Física, Universitat de Barcelona, Curs: 2021, Tutor: Josep Taron Roca

No abstract available.

Practical application of the generalized Bell's theorem in the so-called key distribution process in cryptography is reported. The proposed scheme is based on the Bohm's version of the Einstein-Podolsky-Rosen gedanken ex...

QUANTUM ESPRESSO is an integrated suite of computer codes for electronic-structure calculations and materials modeling, based on density-functional theory, plane waves, and pseudopotentials (norm-conserving, ultrasoft, a...

A computer is generally considered to be a universal computational device; i.e., it is believed able to simulate any physical computational device with a cost in computation time of at most a polynomial factor: It is not...

In a complete theory there is an element corresponding to each element of reality. A sufficient condition for the reality of a physical quantity is the possibility of predicting it with certainty, without disturbing the ...

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTDevelopment and use of quantum mechanical molecular models. 76. AM1: a new general purpose quantum mechanical molecular modelMichael J. S. Dewar, Eve G. Zoebisch, Eamonn F. Hea...

Current research into semiconductor clusters is focused on the properties of quantum dots—fragments of semiconductor consisting of hundreds to many thousands of atoms—with the bulk bonding geometry and with surface s...

An unknown quantum state \ensuremath{\Vert}\ensuremath{\varphi}〉 can be disassembled into, then later reconstructed from, purely classical information and purely nonclassical Einstein-Podolsky-Rosen (EPR) correlations....

Materias / palabras clave: Graphene; Condensed matter physics; Quantum Hall effect; Physics; Electron; Landau quantization; Quantum point contact; Materials science; Quantum well; Quantum mechanics; Laser

An unsorted database contains N records, of which just one satisfies a particular property. The problem is to identify that one record. Any classical algorithm, deterministic or probabilistic, will clearly take O (N) ste...