RT Journal Article
T1 Symplectic invariants of semitoric systems and the inverse problem for quantum systems
A1 Pelayo, Álvaro
AB Simple semitoric systems were classified about ten years ago in terms of a collection of invariants, essentially given by a convex polygon with some marked points corresponding to focus-focus singularities. Each marked point is endowed with labels which are symplectic invariants of the system. We will review the construction of these invariants, and explain how they have been generalized or applied in different contexts. One of these applications concerns quantum integrable systems and the corresponding inverse problem, which asks how much information of the associated classical system can be found in the spectrum. An approach to this problem has been to try to compute invariants in the spectrum. We will explain how this has been recently achieved for some of the invariants of semitoric systems, and discuss an open question in this direction.
PB Elsevier
SN 0019-3577
YR 2021
FD 2021
LK https://hdl.handle.net/20.500.14352/131028
UL https://hdl.handle.net/20.500.14352/131028
LA eng
DS Docta Complutense
RD 11 abr 2026