Concept

Relativistic wave equations

Related publications (101)

Second-order linear hyperbolic SPDEs driven by isotropic Gaussian noise on a sphere

We study a class of linear hyperbolic stochastic partial differential equations in bounded domains, that includes the wave equation and the telegraph equation, driven by Gaussian noise that is white in time but not in space. We give necessary and sufficien ...

2004

Aspects of two dimensional magnetic Schrödinger operatorsquantum hall systems and magnetic Stark resonances

Christian Ferrari

In this PhD thesis we deal with two mathematical problems arising from quantum mechanics. We consider a spinless non relativistic quantum particle whose configuration space is a two dimensional surface S. We also suppose that the particle feels the effect ...

EPFL2003

Synchrotron radiation in radiology: novel X-ray sources

Giorgio Margaritondo, Reto Meuli

X-rays, the key ingredient of radiology, are still primarily produced with the mechanism discovered by Rontgen over one century ago. A different approach, however, is becoming increasingly important: the use of synchrotron sources based on fast-moving elec ...

Springer-Verlag2003

Gravitational dipole radiations from binary systems

Yves Wiaux

We investigate the possibility of generating sizeable dipole radiations in relativistic theories of gravity. Optimal parameters to observe their effects through the orbital period decay of binary star systems are discussed. Constraints on gravitational cou ...

2002

Single-transition coherence transfer by adiabatic cross polarization in NMR

Geoffrey Bodenhausen, Fabien Ferrage

A new method for the spin-state-selective coherence transfer is introduced based on the principles of adiabatic cross polarization. The method is called single-transition adiabatic cross polarization (ST-ACP). It was analyzed theor. for a scalar-coupled 2- ...

2000

Resonant Rayleigh scattering on quantum well excitons: Theory and experiment

Benoît Marie Joseph Deveaud, Vincenzo Savona

Time-resolved up-conversion measurements of secondary emission from multiple quantum wells under resonant femtosecond excitation are reported for GaAs multiple quantum wells with qualitatively different interface disorder. The transient resonant Rayleigh s ...

2000

On some new warped brane world solutions in higher dimensions

We present new solutions of higher dimensional Einstein's equations with a cosmological constant that localize gravity on branes which are transverse to Ricci-flat manifolds or to homogeneous spaces with topologically non-trivial solutions of gauge field e ...

2000

Band-mixing and coupling in single and double quantum wire structures

Elyahou Kapon, Marc-André Dupertuis, Daniel Oberli

The electronic states in the conduction and valence bands of quantum wires are studied by means of the effective mass hamiltonian and the Luttinger hamiltonian. The band mixing effects due to the wire geometry are fully taken into account by an accurate fi ...

1998

Optical studies of highly strained InGaAs/GaAs quantum wells grown on vicinal surfaces

Nicolas Grandjean, Christophe Lopez

We use photoluminescence and photoluminescence excitation experiments with and without magnetic field to study the electronic properties of InxGa1-xAs/GaAs quantum wells grown on vicinal (001) substrates. We analyze samples of a wide range of In contents ( ...

1997

Quelques aspects de la diffusion quantique

In this Thesis we study several aspects of potential scattering in non-relativistic quantum mechanics. In the first part, we study the concept of time delay. More precisely, after an elementary introduction to the theory (chapter I), we clarify in chapter ...

EPFL1995

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