6 citations · 6 across the 5 of their papers we have counts for
5 papers
The Classical and Quantum Monodromy of the Champagne bottle potential
Quang Sang Phan
The Champagne bottle is one of the simplest and typical examples of Liouville integrable systems that exhibit a non-trivial classical monodromy. This geometrical invariant perturbs…
Combinatorial invariant of nearly integrable Hamiltonians
Quang Sang Phan
We work with small non-selfadjoint perturbations of a selfadjoint quantum Hamiltonian with two degrees of freedom, assuming that the principal symbol of the selfadjoint part is (cl…
Spectral monodromy of small non-selfadjoint quantum perturbations of completely integrable Hamiltonians
Quang Sang Phan
We define a monodromy, directly from the spectrum of small non-selfadjoint perturbations of a selfadjoint semiclassical operator with two degrees of freedom, which is classically i…
Spectral monodromy of small non-selfadjoint perturbed operators: completely integrable or quasi-integrable case
Quang Sang Phan
We build a combinatorial invariant, called the spectral monodromy from the spectrum of a non-selfadjoint h -pseudodifferential operator with two degrees of freedom in the semi-clas…
Spectral monodromy of non selfadjoint operators
Quang Sang Phan
We propose to build a combinatorial invariant, called the spectral monodromy, from the spectrum of a single non-selfadjoint h-pseudodifferential operator with two degrees of freedo…