Catégorie

Gravité quantique

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Homotopic Descent over Monoidal Model Categories

The starting point for this project is the article of Kathryn Hess [11]. In this article, a homotopic version of monadic descent is developed. In the classical setting, one constructs a category D(𝕋) of coalgebras in the Eilenberg-Moore category of ...

EPFL2011

Multipactor theory for multi-carrier signals

Michael Mattes

This work presents a new theory of multipactor under multi-carrier signals for parallel-plate geometries. It is the generalization of the non-stationary multipactor theory for single-carrier signals1. It is valid for multicarrier signals with an arbitrary ...

American Institute of Physics2011

Multiple stack anodically bonded 4 mm thick Rb vapor cell

Nico de Rooij, Yves Pétremand

This paper presents a new fabrication method to manufacture alkali reference cells having dimensions larger than standard micromachined cells and smaller than glass-blown ones. This technology fills a gap in cell sizes and already available technologies. ...

Ieee Service Center, 445 Hoes Lane, Po Box 1331, Piscataway, Nj 08855-1331 Usa2011

Behaviour and design of slab-column joints

Aurelio Muttoni, Miguel Fernández Ruiz, Roberto Guidotti

This paper presents an investigation on the behaviour and strength of slab-column joints in multystorey buildings. Such joints may develop different potential failure modes such as crushing of the concrete of the slab (due to column loading), bending or pu ...

fib Symposium Prague 20112011

Localized Ion Implantation Through Micro/Nanostencil Masks

Jürgen Brugger, Luis Guillermo Villanueva Torrijo, Cristina Martin Olmos, Philippe Langlet, Oscar Vazquez Mena

A method is presented that allows the deﬁnition of micrometer- and submicrometer-sized implanted structures in silicon without using photoresist patterning. The process is based on the use of stencils as masks in a conventional ion implanter, and is tested ...

Institute of Electrical and Electronics Engineers2011

Multi-domain Fourier-continuation/WENO hybrid solver for conservation laws

Jan Sickmann Hesthaven

We introduce a multi-domain Fourier-continuation/WENO hybrid method (FC-WENO) that enables high-order and non-oscillatory solution of systems of nonlinear conservation laws, and which enjoys essentially dispersionless, spectral character away from disconti ...

Elsevier2011

Mildly sequestered supergravity models and their realization in string theory

Claudio Scrucca, Christopher John Andrey

We elaborate on the idea that five-dimensional models where sequestering is spoiled due to contact interactions induced by vector multiplets may still be mildly sequestered if a global version of the gauge symmetry associated to the latter survives in the ...

2010

Deep inelastic scattering in conformal QCD

We consider the Regge limit of a CFT correlation function of two vector and two scalar operators, as appropriate to study small-x deep inelastic scattering in N = 4 SYM or in QCD assuming approximate conformal symmetry. After clarifying the nature of the R ...

Springer2010

Consistent Extension of Horava Gravity

Sergey Sibiryakov, Diego Blas Temino

We propose a natural extension of Horava's model for quantum gravity, which is free from the notorious pathologies of the original proposal. The new model endows the scalar graviton mode with a regular quadratic action and remains power-counting renormaliz ...

2010

Transactional memory, linking theory and practice

Vincent Gramoli, Srivatsan Ravi

Transactional memory appears promising for democratizing concurrent programming. Its potential lies in producing code that is extensible as atomicity is preserved under composition of transactions. This new abstraction raises several challenges such as the ...

2010