Results 81 to 90 of about 318,339 (236)

Quantum mechanics concept assessment: Development and validation study

open access: yesPhysical Review Special Topics. Physics Education Research, 2015
As part of an ongoing investigation of students’ learning in first semester upper-division quantum mechanics, we needed a high-quality conceptual assessment instrument for comparing outcomes of different curricular approaches.
Homeyra R. Sadaghiani, Steven J. Pollock
doaj   +1 more source

Thermodynamics of an Empty Box

open access: yesEntropy, 2023
A gas in a box is perhaps the most important model system studied in thermodynamics and statistical mechanics. Usually, studies focus on the gas, whereas the box merely serves as an idealized confinement.
Georg J. Schmitz   +5 more
doaj   +1 more source

A New Approach to Quantum-Statistical Mechanics

open access: yes, 1955
A new method of calculating the grand partition function of many-body system is developed, adopting extensively the techniques of calculus in quantum field theory.
T. Matsubara
semanticscholar   +1 more source

Quantum theory: the role of microsystems and macrosystems

open access: yes, 2007
We stress the notion of statistical experiment, which is mandatory for quantum mechanics, and recall Ludwig's foundation of quantum mechanics, which provides the most general framework to deal with statistical experiments giving evidence for particles ...
Adler S L   +29 more
core   +1 more source

Quantum Mechanics without Statistical Postulates [PDF]

open access: yes, 2006
Latex,elsart preprint style, 14 pages, 4 ...
H. Geiger, Ch. Helm, G. Obermair
openaire   +3 more sources

Quantum statistical mechanics of electron gas in magnetic field

open access: yesCondensed Matter Physics, 2006
Electron eigenstates in a magnetic field are considered. Density of the probability current and an averaged magnetic moment are obtained. Density of states is investigated for two-dimensional electron in a circle that is bound by the infinite potential ...
I.M.Dubrovskii
doaj   +1 more source

Connecting Spin and Statistics in Quantum Mechanics [PDF]

open access: yesFoundations of Physics, 2009
The spin-statistics connection is derived in a simple manner under the postulates that the original and the exchange wave functions are simply added, and that the azimuthal phase angle, which defines the orientation of the spin part of each single-particle spin-component eigenfunction in the plane normal to the spin-quantization axis, is exchanged ...
openaire   +4 more sources

Hidden Variables in Quantum Mechanics from the Perspective of Boltzmannian Statistical Mechanics

open access: yesQuantum Reports
This paper examines no-hidden-variables theorems in quantum mechanics from the point of view of statistical mechanics. It presents a general analysis of the measurement process in the Boltzmannian framework that leads to a characterization of (in ...
Dustin Lazarovici
doaj   +1 more source

The Statistical Interpretation of Quantum Mechanics

open access: yes, 2020
The topic of this inquiry is the foundation of the statistical interpretation of quantum mechanics, the inter-pretation used, explicitly or implicitly, in all practical applications of quantum theory. Although it was thefirst consistent interpretation of the quantum formalism and had eminent supporters as Born, Einstein, orSchrödinger, there was, from ...
openaire   +4 more sources

The classical–statistical limit of quantum mechanics [PDF]

open access: yesPhysica A: Statistical Mechanics and its Applications, 2004
The classical-statistical limit of quantum mechanics is studied. It is proved that the limit $\hbar \to 0$ is the good limit for the operators algebra but it si not so for the state compact set. In the last case decoherence must be invoked to obtain the classical-statistical limit.
openaire   +3 more sources

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