Results 11 to 20 of about 223,517 (193)

Degree of the divisor of solutions of a differential equation on a projective variety [PDF]

open access: yes, 1999
Using the data schemes developed by Arrondo-Sols-Speiser, we give a rigorous definition of algebraic differential equations on the complex projective space $P^n$.
Muñoz, Vicente, Sols, Ignacio
core   +3 more sources

Pipeline model of a Fermi-sea electron pump [PDF]

open access: yes, 2000
The use of a band offset between the two leads of an electron pump driven by a local oscillating voltage is shown to increase the pump current dramatically.
Sols, Fernando, Wagner, Mathias
core   +2 more sources

Coherent ratchets in driven Bose-Einstein condensates [PDF]

open access: yes, 2009
We study the response of a Bose-Einstein condensate to an unbiased periodic driving potential. By controlling the space and time symmetries of the driving we show how a directed current can be induced, producing a coherent quantum ratchet.
Creffield, C. E., Sols, F.
core   +3 more sources

Racionalidad de la inducción como minimización entrópica

open access: yesScientia et Fides, 2016
Rationality of induction as entropic minimizationIn favour of a fundamental aspect of the epistemology of Mariano Artigas –his commitment to the quest for truth on the part of the scientific theory– I argue about the rationality of the process of ...
Ignacio Sols
doaj   +1 more source

Generation of uniform synthetic magnetic fields by split driving of an optical lattice [PDF]

open access: yes, 2014
We describe a method to generate a synthetic gauge potential for ultracold atoms held in an optical lattice. Our approach uses a time-periodic driving potential based on two quickly alternating signals to engineer the appropriate Aharonov-Bohm phases ...
Creffield, C. E., Sols, F.
core   +3 more sources

Nanocomposite organomineral hybrid materials. Part 3

open access: yesНанотехнологии в строительстве, 2016
The paper addresses the issues of alkoxide method of sol-gel synthesis and non-hydrolytic method of sol-gel synthesis and colloidal method of sol-gel synthesis.
KUDRYAVTSEV Pavel Gennadievich   +1 more
doaj   +1 more source

Controlled generation of coherent matter-currents using a periodic driving field [PDF]

open access: yes, 2008
We study the effect of a strong, oscillating driving field on the dynamics of ultracold bosons held in an optical lattice. Modeling the system as a Bose-Hubbard model, we show how the driving field can be used to produce and maintain a coherent atomic ...
Creffield, C. E., Sols, F.
core   +3 more sources

Artificialisation des sols et érosion hydrique dans la ville de Daloa, centre-ouest de la Côte d’Ivoire [PDF]

open access: yesZiglôbitha, 2023
Résumé : L’artificialisation des sols induite par l’étalement de la tache urbaine de Daloa pose le problème de l’exposition des sols au risque d’érosion hydrique.
TRAORE Kinakpefan Michel, Sahoti OUATTARA, & KOUASSI Mangoua Akissi Hélène-Francette
doaj  

Perturbative analysis of coherent quantum ratchets in cold atom systems [PDF]

open access: yes, 2010
We present a perturbative study of the response of cold atoms in an optical lattice to a weak time- and space-asymmetric periodic driving signal. In the noninteracting limit, and for a finite set of resonant frequencies, we show how a coherent, long ...
Creffield, Charles E.   +2 more
core   +3 more sources

Certeza razonable en ciencia y filosofía

open access: yesScientia et Fides, 2016
Reasonable certainty in science and philosophyIt is argued that, as forms of knowledge, neither science is so safe nor philosophy is as arbitrary as often claimed.
Fernando Sols
doaj   +1 more source

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