Fine-Structure Qubit Encoded in Metastable Strontium Trapped in an Optical Lattice

Fuente: arXiv
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Autores principales: Pucher, S., Klüsener, V., Spriestersbach, F., Geiger, J., Schindewolf, A., Bloch, I., Blatt, S.
Formato: Preprint
Publicado: 2024
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author Pucher, S.
Klüsener, V.
Spriestersbach, F.
Geiger, J.
Schindewolf, A.
Bloch, I.
Blatt, S.
author_facet Pucher, S.
Klüsener, V.
Spriestersbach, F.
Geiger, J.
Schindewolf, A.
Bloch, I.
Blatt, S.
contents We demonstrate coherent control of the fine-structure qubit in neutral strontium atoms. This qubit is encoded in the metastable $^3\mathrm{P}_2$ and $^3\mathrm{P}_0$ states, coupled by a Raman transition. Using a magnetic quadrupole transition, we demonstrate coherent state-initialization of this THz qubit. We show Rabi oscillations with more than 60 coherent cycles and single-qubit rotations on the $μ$s scale. With spin-echo, we demonstrate coherence times of tens of ms. Our results pave the way for fast quantum information processors and highly tunable quantum simulators with two-electron atoms.
format Preprint
id arxiv_https___arxiv_org_abs_2401_11054
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle Fine-Structure Qubit Encoded in Metastable Strontium Trapped in an Optical Lattice
Pucher, S.
Klüsener, V.
Spriestersbach, F.
Geiger, J.
Schindewolf, A.
Bloch, I.
Blatt, S.
Quantum Physics
Quantum Gases
Atomic Physics
We demonstrate coherent control of the fine-structure qubit in neutral strontium atoms. This qubit is encoded in the metastable $^3\mathrm{P}_2$ and $^3\mathrm{P}_0$ states, coupled by a Raman transition. Using a magnetic quadrupole transition, we demonstrate coherent state-initialization of this THz qubit. We show Rabi oscillations with more than 60 coherent cycles and single-qubit rotations on the $μ$s scale. With spin-echo, we demonstrate coherence times of tens of ms. Our results pave the way for fast quantum information processors and highly tunable quantum simulators with two-electron atoms.
title Fine-Structure Qubit Encoded in Metastable Strontium Trapped in an Optical Lattice
topic Quantum Physics
Quantum Gases
Atomic Physics
url https://arxiv.org/abs/2401.11054