English

Dynamical normal modes for time-dependent Hamiltonians in two dimensions

Quantum Physics 2017-05-22 v1

Abstract

We present the theory of time-dependent point transformations to find independent dynamical normal modes for 2D systems subjected to time-dependent control in the limit of small oscillations. The condition that determines if the independent modes can indeed be defined is identified, and a geometrical analogy is put forward. The results explain and unify recent work to design fast operations on trapped ions, needed to implement a scalable quantum-information architecture: transport, expansions, and the separation of two ions, two-ion phase gates, as well as the rotation of an anisotropic trap for an ion are treated and shown to be analogous to a mechanical system of two masses connected by springs with time dependent stiffness.

Keywords

Cite

@article{arxiv.1611.05229,
  title  = {Dynamical normal modes for time-dependent Hamiltonians in two dimensions},
  author = {I. Lizuain and M. Palmero and J. G. Muga},
  journal= {arXiv preprint arXiv:1611.05229},
  year   = {2017}
}

Comments

9 pages, 4 figures

R2 v1 2026-06-22T16:54:06.630Z