Emission of Spin-Correlated Matter-Wave Jets from Spinor Bose-Einstein Condensates

We report the observation of matter-wave jet emission in a strongly ferromagnetic spinor Bose-Einstein condensate of $^7$Li atoms. Directional atomic beams with $|{F=1,m_F=1}\rangle$ and $|{F=1,m_F=-1}\rangle$ spin states are generated from $|{F=1,m_F=0}\rangle$ state condensates, or vice versa....

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Main Authors: Kim, Kyungtae, Hur, Junhyeok, Huh, SeungJung, Choi, Soonwon, Choi, Jae-yoon
Format: Article
Language:English
Published: American Physical Society (APS) 2022
Online Access:https://hdl.handle.net/1721.1/141458
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author Kim, Kyungtae
Hur, Junhyeok
Huh, SeungJung
Choi, Soonwon
Choi, Jae-yoon
author_facet Kim, Kyungtae
Hur, Junhyeok
Huh, SeungJung
Choi, Soonwon
Choi, Jae-yoon
author_sort Kim, Kyungtae
collection MIT
description We report the observation of matter-wave jet emission in a strongly ferromagnetic spinor Bose-Einstein condensate of $^7$Li atoms. Directional atomic beams with $|{F=1,m_F=1}\rangle$ and $|{F=1,m_F=-1}\rangle$ spin states are generated from $|{F=1,m_F=0}\rangle$ state condensates, or vice versa. This results from collective spin-mixing scattering events, where spontaneously produced pairs of atoms with opposite momentum facilitates additional spin-mixing collisions as they pass through the condensates. The matter-wave jets of different spin states ($|{F=1,m_F=\pm1}\rangle$) can be a macroscopic Einstein-Podolsky-Rosen state with spacelike separation. Its spin-momentum correlations are studied by using the angular correlation function for each spin state. Rotating the spin axis, the inter-spin and intra-spin momentum correlation peaks display a high contrast oscillation, indicating collective coherence of the atomic ensembles. We provide numerical calculations that describe the experimental results at a quantitative level and can identify its entanglement after 100~ms of a long time-of-flight.
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spelling mit-1721.1/1414582022-04-02T03:17:12Z Emission of Spin-Correlated Matter-Wave Jets from Spinor Bose-Einstein Condensates Kim, Kyungtae Hur, Junhyeok Huh, SeungJung Choi, Soonwon Choi, Jae-yoon We report the observation of matter-wave jet emission in a strongly ferromagnetic spinor Bose-Einstein condensate of $^7$Li atoms. Directional atomic beams with $|{F=1,m_F=1}\rangle$ and $|{F=1,m_F=-1}\rangle$ spin states are generated from $|{F=1,m_F=0}\rangle$ state condensates, or vice versa. This results from collective spin-mixing scattering events, where spontaneously produced pairs of atoms with opposite momentum facilitates additional spin-mixing collisions as they pass through the condensates. The matter-wave jets of different spin states ($|{F=1,m_F=\pm1}\rangle$) can be a macroscopic Einstein-Podolsky-Rosen state with spacelike separation. Its spin-momentum correlations are studied by using the angular correlation function for each spin state. Rotating the spin axis, the inter-spin and intra-spin momentum correlation peaks display a high contrast oscillation, indicating collective coherence of the atomic ensembles. We provide numerical calculations that describe the experimental results at a quantitative level and can identify its entanglement after 100~ms of a long time-of-flight. 2022-04-01T15:22:07Z 2022-04-01T15:22:07Z 2021-07-23 2022-04-01T15:14:18Z Article http://purl.org/eprint/type/JournalArticle https://hdl.handle.net/1721.1/141458 Kim, Kyungtae, Hur, Junhyeok, Huh, SeungJung, Choi, Soonwon and Choi, Jae-yoon. 2021. "Emission of Spin-Correlated Matter-Wave Jets from Spinor Bose-Einstein Condensates." Physical Review Letters, 127 (4). en 10.1103/physrevlett.127.043401 Physical Review Letters Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. application/pdf American Physical Society (APS) APS
spellingShingle Kim, Kyungtae
Hur, Junhyeok
Huh, SeungJung
Choi, Soonwon
Choi, Jae-yoon
Emission of Spin-Correlated Matter-Wave Jets from Spinor Bose-Einstein Condensates
title Emission of Spin-Correlated Matter-Wave Jets from Spinor Bose-Einstein Condensates
title_full Emission of Spin-Correlated Matter-Wave Jets from Spinor Bose-Einstein Condensates
title_fullStr Emission of Spin-Correlated Matter-Wave Jets from Spinor Bose-Einstein Condensates
title_full_unstemmed Emission of Spin-Correlated Matter-Wave Jets from Spinor Bose-Einstein Condensates
title_short Emission of Spin-Correlated Matter-Wave Jets from Spinor Bose-Einstein Condensates
title_sort emission of spin correlated matter wave jets from spinor bose einstein condensates
url https://hdl.handle.net/1721.1/141458
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