Results 41 to 50 of about 28,408,994 (264)

Dynamical properties of a soliton in a potential well [PDF]

open access: yesJournal of Physics A: Mathematical and Theoretical, 2006
We analyse the scattering of a two-dimensional soliton on a potential well. We show that this soliton can pass through the well, bounce back or become trapped and we study the dependence of the critical velocity on the width and the depth of the well. We also present a model based on a pseudo-geodesic approximation to the full system which shows that ...
Piette, B., Zakrzewski, W. J.
openaire   +2 more sources

Resonances of a Potential Well with a Thick Barrier [PDF]

open access: yesSIAM Journal on Applied Mathematics, 2013
This work is motivated by the desire to develop a method that allows for easy and accurate calculation of complex resonances of a one-dimensional Schrodinger's equation whose potential is a low-energy well surrounded by a thick barrier. The resonance is calculated as a perturbation of the bound state associated with a barrier of infinite thickness.
David C. Dobson   +3 more
openaire   +2 more sources

Negative group delay for Dirac particles traveling through a potential well

open access: yes, 2003
The properties of group delay for Dirac particles traveling through a potential well are investigated. A necessary condition is put forward for the group delay to be negative.
Li, CF, Chen, X
core   +1 more source

Pumping potential wells

open access: yesLaser and Particle Beams, 1987
Nonmonotonic plasma potential structures are a common feature of many double layers and sheaths. Steady state plasma potential wells separating regions having different plasma potentials are often found in laboratory experiments. In order to exist, such structures all must find a solution to a common problem.
N. Hershkowitz   +3 more
openaire   +1 more source

Global existence and finite time blow-up of solutions to a nonlocal p-Laplace equation

open access: yesMathematical Modelling and Analysis, 2019
In this paper a class of nonlocal diffusion equations associated with a p-Laplace operator, usually referred to as p-Kirchhoff equations, are studied.
Jian Li, Yuzhu Han
doaj   +1 more source

High-Q Slow Sound Mode in a Phononic Fishbone Nanobeam Using an Acoustic Potential Well Cavity

open access: yesCrystals, 2023
Phononic crystals and phononic metamaterials are popular structures for manipulating acoustic waves with artificially arranged units that have different elastic constants.
Ying-Pin Tsai, Bor-Shyh Lin, Fu-Li Hsiao
doaj   +1 more source

Theoretical Studies of dilute Bose-Einstein condensates in a double-well potential [PDF]

open access: yes, 2004
In this Thesis we apply the Gross-Pitaevskii equation (GPE) to describe properties of a dilute, near zero temperature Bose gas for various confining geometries.
Sakellari, Eleni
core  

Tourism Degrowth and Resident Well-being [PDF]

open access: yes
An increasing number of tourism researchers now advance the notion of tourism degrowth as a serious and viable alternative to the mainstream, growth-oriented approach to managing tourism development. The paper seeks to clarify, at a conceptual level, the
Dwyer, L, Dwyer, Larry
core   +1 more source

European Standard Clinical Practice Guideline and EXPeRT Recommendations for the Diagnosis and Management of Gastroenteropancreatic Neuroendocrine Neoplasms in Children and Adolescents

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Pediatric gastroenteropancreatic neuroendocrine neoplasms (GEP‐NENs) are extremely rare and clinically heterogeneous. Management has largely been extrapolated from adult practice. This European Standard Clinical Practice Guideline (ESCP), developed by the EXPeRT network in collaboration with adult NEN experts, provides (adult) evidence ...
Michaela Kuhlen   +23 more
wiley   +1 more source

New instantons in the double-well potential [PDF]

open access: yesPhysics Letters B, 2001
A new instanton solution is found in the quantum-mechanical double-well potential with a four-fermion term. The solution has finite action and depends on four fermionic collective coordinates. We explain why in general the instanton action can depend on collective coordinates.
Vandoren, S., Nieuwenhuizen, P. van
openaire   +4 more sources

Home - About - Disclaimer - Privacy