نتایج جستجو برای: mechanics experiment

تعداد نتایج: 580004  

Journal: :The journal of physical chemistry. B 2009
Shu-Hao Wen An Li Junling Song Wei-Qiao Deng Ke-Li Han William A Goddard

We report a simple first-principles-based simulation model (combining quantum mechanics with Marcus-Hush theory) that provides the quantitative structural relationships between angular resolution anisotropic hole mobility and molecular structures and packing. We validate that this model correctly predicts the anisotropic hole mobilities of ruberene, pentacene, tetracene, 5,11-dichlorotetracene ...

2009
Antoine Suarez

Relativistic Nonlocality is applied to experiments in which one of the photons impacts successively at two beam-splitters. Thereby a time series with 2 non-before impacts can be produced with beam-splitters at rest. It is discussed whether such an experiment may allow us to decide between Quantum Mechanics (QM) and Relativistic Nonlocality (RNL).

2003
David Atkinson

Nonlocality in quantum mechanics does not follow from nonseparability, nor does classical stochastic independence imply physical independence. In this paper an explicit proof of a Bell inequality is recalled, and an analysis of the Aspect experiment in terms of noncontextual, but indefinite weights, or improper probabilities, is given.

2007
A. B. Reighard R. P. Drake

The mechanics of a radiative shock which has “collapsed,” or been compressed to high density, via radiative cooling is discussed. This process is relevant to an experiment in xenon gas that produced a driven, radiatively collapsed shock, and also to a simulation of the supernova 1987A shock wave passing through the outer layers of the star and into the low-density circumstellar material.

Journal: :Physical review letters 2005
Tao Yang Qiang Zhang Jun Zhang Juan Yin Zhi Zhao Marek Zukowski Zeng-Bing Chen Jian-Wei Pan

We develop and exploit a source of two-photon, four-dimensional entanglement to report the first two-particle all-versus-nothing test of local realism with a linear optics setup, but without resorting to a noncontextuality assumption. Our experimental results are in good agreement with quantum mechanics while in extreme contradiction to local realism. Potential applications of our experiment ar...

1999
Guglielmo M. Tino

Recent experimental tests of the symmetrization postulate of quantum mechanics are discussed. It is shown that in a strict sense these experiments cannot test the validity of the symmetrization postulate, but in most cases do test the spin-statistics connection. An experiment is proposed that would allow to search for possible violations of the symmetrization postulate. Typeset using REVTEX 1

2003
J. Heyse

In an experiment designed to overcome the loopholes of observer dependent reality and satisfying the counterfactuality condition, we measured polarization correlations of 1S0 proton pairs produced in C(d, He) and H(d, He) reactions in one setting. The results of these measurements are used to test the Bell and Wigner inequalties against the predictions of quantum mechanics.

2008
Antoine Suarez

RNL is a recently proposed relativistic nonlocal description, which unifies relativity of simultaneity and superluminal nonlocality (without superluminal signaling). In this article RNL is applied to experiments with so-called 2 nonbefore impacts, leading to new rules of calculating the joint probabilities, and predictions conflicting with quantum mechanics. A real experiment using fast moving ...

2009
C. E. Aguiar M. M. Pereira

Experiments in mechanics can often be timed by the sounds they produce. In such cases, digital audio recordings provide a simple way of measuring time intervals with an accuracy comparable to that of photogate timers. We illustrate this with an experiment in the physics of sports: to measure the speed of a hard-kicked soccer ball.

2015
Thomas Wilhelm-Stein Maximilian Eibl

Experiment / Components configuration Evaluation view Recall-Precision-Graph User profile with achievements We present a web-based tool for learning the information retrieval process. An interactive approach helps students gain practical knowledge. Our focus is the arrangement and configuration of IR components and their evaluation. The incorporation of game mechanics counteracts an information...

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