Results 11 to 20 of about 2,267,564 (285)

Disentangling dynamical phase transitions from equilibrium phase transitions [PDF]

open access: yes, 2014
Dynamical phase transitions (DPT) occur after quenching some global parameters in quantum systems and are signalled by the non-analytical time evolution of the dynamical free energy, which is calculated from the Loschmidt overlap between the initial and ...
Dóra, Balázs, Vajna, Szabolcs
core   +2 more sources

Anderson Transitions [PDF]

open access: yes, 2007
The physics of Anderson transitions between localized and metallic phases in disordered systems is reviewed. The term ``Anderson transition'' is understood in a broad sense, including both metal-insulator transitions and quantum-Hall-type transitions ...
Alexander D. Mirlin   +65 more
core   +3 more sources

Quantum phase transitions of the diluted O(3) rotor model [PDF]

open access: yes, 2006
We study the phase diagram and the quantum phase transitions of a site-diluted two-dimensional O(3) quantum rotor model by means of large-scale Monte-Carlo simulations. This system has two quantum phase transitions, a generic one for small dilutions, and
G. Grinstein   +5 more
core   +3 more sources

L’accompagnement des futurs enseignants en période de réforme : entre nouvelles orientations institutionnelles et tensions professionnelles chez les formateurs en INSPE

open access: yesQuestions Vives, 2023
The contribution focuses on the way in which teacher educators in INSPE (Institut National Supérieur du Professorat et de l’Education) situate themselves in the new framework created by the training reform and envisage their student accompanying activity.
Thérèse Perez-Roux   +1 more
doaj   +1 more source

Quantum Tunneling and Phase Transitions in Spin Systems with an Applied Magnetic Field [PDF]

open access: yes, 1998
Transitions from classical to quantum behaviour in a spin system with two degenerate ground states separated by twin energy barriers which are asymmetric due to an applied magnetic field are investigated.
Lee, S. -Y.   +3 more
core   +2 more sources

Perspectives on urban transformation research: transformations in, of, and by cities

open access: yesUrban Transformations, 2021
The narrative of ‘urban transformations’ epitomises the hope that cities provide rich opportunities for contributing to local and global sustainability and resilience.
Katharina Hölscher, Niki Frantzeskaki
doaj   +1 more source

Submillimeter-Wave Measurements and Analysis of the Ground and ν2 = 1 States of Water [PDF]

open access: yes, 2000
In order to facilitate further studies of water in the interstellar medium, the envelopes of late-type stars, jets, and shocked regions, the frequencies of 17 newly measured H_2 ^(16)O transitions between 0.841 and 1.575 THz are reported.
Blake, Geoffrey A.   +4 more
core   +1 more source

Geometric Transitions

open access: yes, 2004
The purpose of this paper is to give, on one hand, a mathematical exposition of the main topological and geometrical properties of geometric transitions, on the other hand, a quick outline of their principal applications, both in mathematics and in ...
Altmann   +75 more
core   +1 more source

Magnetic segregation effect in liquid crystals doped with carbon nanotubes

open access: yesBeilstein Journal of Nanotechnology, 2019
We study the orientational transitions in a suspension of carbon nanotubes in a nematic liquid crystal induced by an external magnetic field. The case of a finite orientational anchoring of liquid crystal molecules at the surface of doped carbon ...
Danil A. Petrov   +3 more
doaj   +1 more source

Performing the Bad Marriage? The Transition from a Troubled to a Troubling Family in the Course of Fault Divorce in the 21st Century

open access: yesSocial Sciences, 2021
Austrian family law stands out in Europe because, in Austria, fault-based divorce is still legally valid. In these divorces, the suing partner attempts to prove in court that the other partner is at fault for the breakdown of the marriage.
Viktoria Parisot
doaj   +1 more source

Home - About - Disclaimer - Privacy