Results 11 to 20 of about 1,627,334 (303)

Renormalization in quantum mechanics [PDF]

open access: yesPhysical Review D, 1993
We implement the concept of Wilson renormalization in the context of simple quantum mechanical systems. The attractive inverse square potential leads to a $\b$ function with a nontrivial ultraviolet stable fixed point and the Hulthen potential exhibits the crossover phenomenon.
Gupta, K. S., Rajeev, S. G.
openaire   +3 more sources

Putting Mechanics into Quantum Mechanics [PDF]

open access: yesPhysics Today, 2005
Nanoelectromechanical structures are starting to approach the ultimate quantum mechanical limits for detecting and exciting motion at the nanoscale. Nonclassical states of a mechanical resonator are also on the horizon.
Schwab, Keith C., Roukes, Michael L.
openaire   +2 more sources

Indistinguishability and Counting: Teaching the role of different interpretations in Quantum Mechanics [PDF]

open access: yesRevista Brasileira de Ensino de Física, 2021
The theme of indistinguishability in the context of Quantum Mechanics as opposed to a distinguishability in the context of Classical Mechanics has been treated for almost a century in terms of an essential difference between the way of counting in ...
O.L.S. Filho, Marcello Ferreira
doaj   +1 more source

NONCOMMUTATIVE QUANTUM MECHANICS AND QUANTUM COSMOLOGY [PDF]

open access: yesInternational Journal of Modern Physics A, 2009
We present a phase-space noncommutative version of quantum mechanics and apply this extension to Quantum Cosmology. We motivate this type of noncommutative algebra through the gravitational quantum well (GQW) where the noncommutativity between momenta is shown to be relevant. We also discuss some qualitative features of the GQW such as the Berry phase.
Bastos, Catarina   +3 more
openaire   +3 more sources

Relative Facts of Relational Quantum Mechanics are Incompatible with Quantum Mechanics

open access: yesQuantum, 2023
Relational Quantum Mechanics (RQM) claims to be an interpretation of quantum theory \cite{Rovelli.21}. However, there are significant departures from quantum theory: (i) in RQM measurement outcomes arise from interactions which entangle a system S and an observer A without decoherence, and (ii) such an outcome is a "fact" relative to the observer A ...
Jay Lawrence   +2 more
openaire   +4 more sources

On the Classical Limit of Quantum Mechanics [PDF]

open access: yes, 2008
Contrary to the widespread belief, the problem of the emergence of classical mechanics from quantum mechanics is still open. In spite of many results on the ¯h → 0 asymptotics, it is not yet clear how to explain within standard quantum mechanics the ...
Allori, Valia, Zanghi, Nino
core   +1 more source

Analysis of contribution of matrix mechanics on quantum mechanics [PDF]

open access: yesEPJ Web of Conferences
In this paper the analysis and discussion about the contribution made by matrix mechanics, i.e. the establishment of complex form of quantum mechanics and the proposal of mathematic formalism of uncertainty principle, to the development of quantum ...
Ren Zhi
doaj   +1 more source

Foundations of Quantum Mechanics

open access: yesEncyclopedia, 2022
Quantum mechanics is a mathematical formalism that models the dynamics of physical objects. It deals with the elementary constituents of matter (atoms, subatomic and elementary particles) and of radiation.
Salim Yasmineh
doaj   +1 more source

The quantum double as quantum mechanics [PDF]

open access: yesJournal of Geometry and Physics, 1994
36 pages. Revised to include full details for the simplest example based on sl_2. Accepted to appear in J.
openaire   +2 more sources

Probability, Entropy, and Gibbs’ Paradox(es)

open access: yesEntropy, 2018
Two distinct puzzles, which are both known as Gibbs’ paradox, have interested physicists since they were first identified in the 1870s. They each have significance for the foundations of statistical mechanics and have led to lively discussions with
Robert H. Swendsen
doaj   +1 more source

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