Pith. sign in

REVIEW 3 cited by

Observability of the Schr{\"o}dinger equation with subquadratic confining potential in the Euclidean space

Not yet reviewed by Pith; the record is open.

This paper has not been read by Pith yet. Machine review is queued; the pith claim, tier, and objections will appear here once it completes.

SPECIMEN: schema-true, not a live event

T0 review · schema-true

One-sentence machine reading of the paper's core claim.

pith:XXXXXXXX · record.json · timestamp

arxiv 2307.00839 v1 pith:Q53PAZSV submitted 2023-07-03 math.AP

classification math.AP
keywords observabilitydingerschrconditionconfiningequationobservationpotential
verification ladder T0 review T1 audit T2 compute T3 formal
0 comments
abstract

We consider the Schr{\"o}dinger equation in $\mathbf{R}^d$, $d \ge 1$, with a confining potential growing at most quadratically. Our main theorem characterizes open sets from which observability holds, provided they are sufficiently regular in a certain sense. The observability condition involves the Hamiltonian flow associated with the Schr{\"o}dinger operator under consideration. It is obtained using semiclassical analysis techniques. It allows to provide with an accurate estimation of the optimal observation time. We illustrate this result with several examples. In the case of two-dimensional harmonic potentials, focusing on conical or rotation-invariant observation sets, we express our observability condition in terms of arithmetical properties of the characteristic frequencies of the oscillator.

Discussion (0). Continue with ORCID to comment.

Forward citations

Cited by 3 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Quantitative observability for the Schr\"{o}dinger equation with an anharmonic oscillator

    math.AP 2025-01 conditional novelty 7.0 of 10

    For the Schrödinger equation with potential |x|, the authors establish that sets whose complements are α-thin with α > 1/2 are observable at any time, while half-lines are never observable.

  2. Egorov's theorem in the Weyl--H\"ormander calculus

    math.AP 2024-12 conditional novelty 7.0 of 10

    A general Egorov theorem with quantified Ehrenfest time and full symbol expansion is proved via a new propagation result for quantum partitions of unity.

  3. Smoothing effect and quantum-classical correspondence for the Schr{\"o}dinger equation with confining potential

    math.AP 2024-12 conditional novelty 5.0 of 10

    For sub-quadratic confining potentials, the quantum smoothing effect and the classical escape rate of Hamiltonian trajectories are equivalent up to an O(1/R) factor.

Pith tools