Mainz 2026 – wissenschaftliches Programm
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SYSL: Symposium Classical and Quantum Structured Light
SYSL 1: Classical and Quantum Structured Light
SYSL 1.3: Hauptvortrag
Montag, 2. März 2026, 18:00–18:30, P 1
Structured light for the creation of squeezed multiplets to encode quantum information in trapped ions — •Corina Révora1,2, Christian Tomás Schmiegelow1,2, and Juan Pablo Paz1,2 — 1Universidad de Buenos Aires, FCEyN, Departamento de Física. Buenos Aires, Argentina — 2CONICET-Universidad de Buenos Aires, IFIBA, Buenos Aires, Argentina.
Structured light can be used to squeeze the motion of a cold trapped ion. In this talk, I will introduce how it can be used to obtain squeezed multiplets, which are highly non-Gaussian motional states defined as superpositions of D squeezed quantum states.
Squeezed multiplets can be used to encode a quDit, or a single qubit, in a way that makes the errors induced by the loss of D/2 photons detectable by superparity measurements (for even D). The exact analytic expressions for the Wigner function of these states enable us to understand the extreme sensitivity to perturbations, which opens the way to metrological applications. I will show how structured light can be used to generate spin dependent squeezing. And I will also demostrate how to create superpositions of D squeezed states using only a quTrit and projective measurements.
Keywords: squeezing; squeezed multiplets; quantum enconding; trapped ions