1,595 research outputs found
Verifying continuous-variable entanglement in finite spaces
Starting from arbitrary Hilbert spaces, we reduce the problem to verify
entanglement of any bipartite quantum state to finite dimensional subspaces.
Hence, entanglement is a finite dimensional property. A generalization for
multipartite quantum states is also given.Comment: 4 page
Restoration of Lake Pampulha, Brazil by using sanitation and in-lake techniques
The paper presents a broad view about the measures for restoration of Lake Pampulha, Brazil. This man made reservoir is located in a dense inhabited urban area and constitutes the main touristic attraction of the city of Belo Horizonte. Since several decades the water body receives the discharge of untreated sewage from domestic as well from industrial sources, what leads to severe episodes of algal blooms in the water surface. In order to combat this eutrophication problem some measures have been already carried out and others are planned in a short term. These preventive and corrective techniques provides an efficient association between sanitation processes and the application of in-lake treatment actions. Moreover a hydrodynamic modelling has been also carried out with the purpose of evaluating the water circulation and the water residence time in the compartments of the lake
Intro to Ground Water Law in Colorado and Surface-Groundwater Conflicts in the South Platte
25 pages.
Contains footnotes
Intro to Ground Water Law in Colorado and Surface-Groundwater Conflicts in the South Platte
25 pages.
Contains footnotes
Enriched Computational Homogenization Schemes Applied to Pattern-Transforming Elastomeric Mechanical Metamaterials
Elastomeric mechanical metamaterials exhibit unconventional mechanical
behaviour owing to their complex microstructures. A clear transition in the
effective properties emerges under compressive loading, which is triggered by
local instabilities and pattern transformations of the underlying cellular
microstructure. Such transformations trigger a non-local mechanical response
resulting in strong size effects. For predictive modelling of engineering
applications, the effective homogenized material properties are generally of
interest. For mechanical metamaterials, these can be obtained in an expensive
manner by ensemble averaging of the direct numerical simulations for a series
of translated microstructures, applicable especially in the regime of small
separation of scales. To circumvent this expensive step, computational
homogenization methods are of benefit, employing volume averaging instead.
Classical first-order computational homogenization, which relies on the
standard separation of scales principle, is unable to capture any size and
boundary effects. Second-order computational homogenization has the ability to
capture strain gradient effects at the macro-scale, thus accounting for the
presence of non-localities. Another alternative is micromorphic computational
homogenization scheme, which is tailored to pattern-transforming metamaterials
by incorporating prior kinematic knowledge. In this contribution, a systematic
study is performed, assessing the predictive ability of computational
homogenization schemes in the realm of elastomeric metamaterials. Three
representative examples with distinct mechanical loading are employed for this
purpose: uniform compression and bending of an infinite specimen, and
compression of a finite specimen. Qualitative and quantitative analyses are
performed for each of the load cases where the ensemble average solution is set
as a reference.Comment: 32 pages, 19 figures, 1 table, abstract shortened to fulfil 1920
character limi
Independent nonclassical tests for states and measurements in the same experiment
We show that one single experiment can test simultaneously and independently
both the nonclassicality of states and measurements by the violation or
fulfillment of classical bounds on the statistics. Nonideal measurements
affected by imperfections can be characterized by two bounds depending on
whether we test the ideal measurement or the real one.Comment: 9 pages, 3 figures. Proceedings of 17th CEWQO 201
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