Motional-state analysis of a trapped ion by ultranarrowband composite pulses
Artikel i vetenskaplig tidskrift, 2024
In this work, we present a method for measuring the motional state of a two-level system coupled to a harmonic oscillator. Our technique uses ultranarrowband composite pulses on the blue sideband transition to scan through the populations of the different motional states. Our approach does not assume any previous knowledge of the motional state distribution and is easily implemented. It is applicable both inside and outside of the Lamb-Dicke regime. For higher phonon numbers especially, the composite pulse sequence can be used as a filter for measuring phonon number ranges. We demonstrate this measurement technique using a single trapped ion and show good detection results with the numerically evaluated pulse sequence.
Författare
Marion Mallweger
Stockholms universitet
Milena Guevara-Bertsch
Österreichische Akademie der Wissenschaften
University of Innsbruck
Boyan T. Torosov
Bulgarian Acad Sci
Robin Thomm
Stockholms universitet
Natalia Kuk
Stockholms universitet
Harry Parke
Stockholms universitet
Christan F. Roos
Österreichische Akademie der Wissenschaften
University of Innsbruck
Gerard Higgins
Chalmers, Mikroteknologi och nanovetenskap, Kvantteknologi
Markus Hennrich
Stockholms universitet
Nikolay V. Vitanov
Sofijski universitet
PHYSICAL REVIEW A
2469-9926 (ISSN) 2469-9934 (eISSN)
Vol. 110 5 053103Wallenberg Centre for Quantum Technology (WACQT)
Knut och Alice Wallenbergs Stiftelse (KAW 2017.0449, KAW2021.0009, KAW2022.0006), 2018-01-01 -- 2030-03-31.
Att testa kvantfysik på outforskat territorium med hjälp av en magneto-mekanisk oscillator
Vetenskapsrådet (VR) (2020-00381), 2020-07-01 -- 2023-06-30.
Ämneskategorier (SSIF 2011)
Atom- och molekylfysik och optik
DOI
10.1103/PhysRevA.110.053103