Rapid generation and number-resolved detection of spinor Rubidium Bose-Einstein condensates

verfasst von: Cebrail Pür, Mareike Hetzel, Martin Quensen, Andreas Hüper, Jiao Geng, Jens Kruse, Wolfgang Ertmer, Carsten Klempt
Abstract: High data acquisition rates and low-noise detection of ultracold neutral atoms present important challenges for the state tomography and interferometric application of entangled quantum states in Bose-Einstein condensates. In this article, we present a high-flux source of $^{87}$Rb Bose-Einstein condensates combined with a number-resolving detection. We create Bose-Einstein condensates of $2\times10^5$ atoms with no discernible thermal fraction within $3.3$ s using a hybrid evaporation approach in a magnetic/optical trap. For the high-fidelity tomography of many-body quantum states in the spin degree of freedom [arXiv:2207.01270], it is desirable to select a single mode for a number-resolving detection. We demonstrate the low-noise selection of subsamples of up to $16$ atoms and their subsequent detection with a counting noise below $0.2$ atoms. The presented techniques offer an exciting path towards the creation and analysis of mesoscopic quantum states with unprecedented fidelities, and their exploitation for fundamental and metrological applications.
Organisationseinheit(en): Institut für Quantenoptik
Quantum Atom Optics
QuantumFrontiers
Typ: Artikel
Journal: Physical Review A
ISSN: 2469-9926
Publikationsdatum: 20.01.2023
Publikationsstatus: Angenommen/Im Druck
Elektronische Version(en): https://journals.aps.org/pra/accepted/5d077Nd8Hf913628b18f8c336aeec8edb3768507f (Zugang: Geschlossen)

BibTeX

@article{3dacc9ee04944c31b85f9c61eb3df6d2,
title = "Rapid generation and number-resolved detection of spinor Rubidium Bose-Einstein condensates",
abstract = " High data acquisition rates and low-noise detection of ultracold neutral atoms present important challenges for the state tomography and interferometric application of entangled quantum states in Bose-Einstein condensates. In this article, we present a high-flux source of $^{87}$Rb Bose-Einstein condensates combined with a number-resolving detection. We create Bose-Einstein condensates of $2\times10^5$ atoms with no discernible thermal fraction within $3.3$ s using a hybrid evaporation approach in a magnetic/optical trap. For the high-fidelity tomography of many-body quantum states in the spin degree of freedom [arXiv:2207.01270], it is desirable to select a single mode for a number-resolving detection. We demonstrate the low-noise selection of subsamples of up to $16$ atoms and their subsequent detection with a counting noise below $0.2$ atoms. The presented techniques offer an exciting path towards the creation and analysis of mesoscopic quantum states with unprecedented fidelities, and their exploitation for fundamental and metrological applications. ",
keywords = "cond-mat.quant-gas, physics.atom-ph, quant-ph",
author = "Cebrail P{\"u}r and Mareike Hetzel and Martin Quensen and Andreas H{\"u}per and Jiao Geng and Jens Kruse and Wolfgang Ertmer and Carsten Klempt",
year = "2023",
month = jan,
day = "20",
language = "English",
journal = "Physical Review A",
issn = "2469-9926",
publisher = "American Physical Society",
}