Results 1 to 10 of about 154,239 (91)

Unified theory of phase separation and charge ordering in doped manganite perovskites [PDF]

open access: yes, 1999
A unified theory is developed to explain various types of electronic collective behaviors in doped manganites R$_{1-x}$X$_x$MnO$_3$ (R = La, Pr,Nd etc. and X = Ca, Sr, Ba etc.).
A. Auerbach   +66 more
core   +2 more sources

String Gravity and Cosmology: Some new ideas [PDF]

open access: yes, 1995
String theory provides the only consistent framework so far that unifies all interactions including gravity. We discuss gravity and cosmology in string theory. Conventional notions from general relativity like geometry, topology etc.
Kiritsis, Elias, Kounnas, Costas
core   +2 more sources

Properties of Physical Systems: Transient Singularities on Borders and Surface Transitive Zones [PDF]

open access: yes, 2009
Certain alternative properties of physical systems are describable by supports of arguments of response functions (e.g. light cone, borders of media) and expressed by projectors; corresponding equations of restraints lead to dispersion relations ...
D. Bedeaux   +29 more
core   +1 more source

Quantum Theory of the Electron Transfer Coefficient [PDF]

open access: yes, 2017
In the recent years, quantum chemistry has taken an essential place in the prediction of molecular interactions, in both for chemical reactions and for solutions.The primary objective of this work is to present a new theory of the electron transfer ...
González-Pérez, M. (Manuel)
core   +1 more source

Bohmian quantum gravity and cosmology

open access: yes, 2019
Quantum gravity aims to describe gravity in quantum mechanical terms. How exactly this needs to be done remains an open question. Various proposals have been put on the table, such as canonical quantum gravity, loop quantum gravity, string theory, etc ...
Pinto-Neto, Nelson, Struyve, Ward
core   +1 more source

Universal geometric approach to uncertainty, entropy and information [PDF]

open access: yes, 1999
It is shown that for any ensemble, whether classical or quantum, continuous or discrete, there is only one measure of the "volume" of the ensemble that is compatible with several basic geometric postulates.
A.S. Davydov   +27 more
core   +2 more sources

Can photon be considered as its trajectory self-detector (self-collapse as spontaneous superposition breaking)

open access: yes, 2022
In this work we theoretically considered variations of remarkable experiments of single photon interference ( at beam splitter, at diaphragm with two slits, etc., especially recent experiment of such kind realized by V. Jacques, E.
Pankovic, Vladan
core  

$\hbar$ as parameter of Minkowski metric in effective theory

open access: yes, 2009
With the proper choice of the dimensionality of the metric components, the action for all fields becomes dimensionless. Such quantities as the vacuum speed of light c, the Planck constant \hbar, the electric charge e, the particle mass m, the Newton ...
C. J. Borde   +12 more
core   +1 more source

The series spectra of the stripped boron atom (BIII) [PDF]

open access: yes, 1924
In a preceding article [1], we have brought forward evidence that in "hot spark" spectra the strongest lines generally correspond to atoms from which the valence electrons have all been stripped off, so that the resulting spectrum is hydrogen-like, i.e.,
Bowen, I. S., Millikan, R. A.
core  

Black hole horizons from within loop quantum gravity

open access: yes, 2011
In general relativity, the fields on a black hole horizon are obtained from those in the bulk by pullback and restriction. Similarly, in quantum gravity, the quantized horizon degrees of freedom should result from restricting, or pulling-back, the ...
Sahlmann, Hanno
core   +1 more source

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