4 papers
Measuring a quantum system without problems
Marco Falconi, Clotilde Fermanian Kammerer, Raphaël Gautier
The process of measuring quantum observables has been plagued, since the inception of quantum mechanics, by the so-called measurement problem: it is impossible to read a definite o…
Edge modes generated by intersection between 3 energy bands
Clotilde Fermanian Kammerer, Nicolas Frantz
In this contribution, we investigate 2-dimensional model problems of three coupled equations. We assume that the underlying Hamiltonian presents a symmetric intersection between th…
Quantization on filtered manifolds
Clotilde Fermanian Kammerer, Véronique Fischer, Steven Flynn
In this article, we develop a pseudodifferential calculus on a general filtered manifold M . The symbols are fields of operators (x, ) parametrised by x M and the uni…
Asymptotic initial value representation of the solutions of semi-classical systems presenting smooth codimension one crossings
Clotilde Fermanian Kammerer, Caroline Lasser, Didier Robert
This paper is devoted to the construction of approximations of the propagator associated with a semi-classical matrix-valued Schrödinger operator with symbol presenting smooth eig…