Energy transfer and position measurement in quantum mechanics

Measurement in quantum mechanics FAQ

This is a FAQ on physical and metaphysical approaches to the measurement problem in QM. Please help make it more complete. SeèWhat is needed' for details. The existing sci.physics FAQ does a good job of dealing with technical questions in most areas of physics. However it has no material on interpretations of QM which are among the most frequently discussed topics in sci.physics. Perhaps in par...

Characterizing mixing and measurement in quantum mechanics

What fundamental constraints characterize the relationship between a mixture r5( ipir i of quantum states, the states r i being mixed, and the probabilities pi? What fundamental constraints characterize the relationship between prior and posterior states in a quantum measurement? In this paper we show that there are many surprisingly strong constraints on these mixing and measurement processes ...

Measurement and Classical Regime in Quantum Mechanics

In this article, I shall focus on two of the main problems raising interpretational issues in quantum mechanics, namely the notorious measurement problem (discussed together with the theory of measurement in section 4) and the equally important but not quite as widely discussed problem of the classical regime (discussed together with decoherence in section 3). The two problems are distinct, but...

Quantum Mechanics-Molecular Mechanics Model Study of some Antibiotics and Vitamins in Gas Phases: Investigation of Energy and NMR Chemical Shift

The combination of Quantum Mechanics (QM) and Molecular Mechanics (MM) methods hasbecome alternative tool for many applications that pure QM and MM could not be suitable.The QM/MM method has been used for different type of problems, for example: structuralbiology, surface phenomena, and liquid phase. In this paper we have performed these methods forsome antibiotics and vitamins and then we comp...

The Measurement Problem in Quantum Mechanics Revisited