Bittermann, J. A., Bulla, L., Ecker, S., Neumann, S. P., Fink, M., Bohmann, M., Friis, N., Huber, M., & Ursin, R. (2024). Photonic entanglement during a zero-g flight. Quantum, 8, Article 1256. https://doi.org/10.22331/q-2024-02-15-1256
E141-08 - Forschungsbereich Quantum Optics and Quantum Information
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Journal:
Quantum
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ISSN:
2521-327X
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Date (published):
15-Feb-2024
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Number of Pages:
22
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Publisher:
Verein zur Förderung des Open Access Publizierens in den Quantenwissenschaften
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Peer reviewed:
Yes
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Keywords:
quantum entanglement; parabola flight; Bell inequality
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Abstract:
Quantum technologies have matured to the point that we can test fundamental quantum phenomena under extreme conditions. Specifically, entanglement, a cornerstone of modern quantum information theory, can be robustly produced and verified in various adverse environments. We take these tests further and implement a high-quality Bell experiment during a parabolic flight, transitioning from microgravity to hypergravity of 1.8 g while continuously observing Bell violation, with Bell-CHSH parameters between $S=-2.6202$ and $-2.7323$, an average of $\overline{S} = -2.680$, and average standard deviation of $\overline{\Delta S} = 0.014$. This violation is unaffected both by uniform and non-uniform acceleration. This experiment demonstrates the stability of current quantum communication platforms for space-based applications and adds an important reference point for testing the interplay of non-inertial motion and quantum information.
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Project title:
Resources for flexible quantum information processing: P 31339 (FWF - Österr. Wissenschaftsfonds) Verschränkungsbasierte Zertifizierung von Quantentechnologie: P 36478 (FWF - Österr. Wissenschaftsfonds) Control and complexity in quantum statistical mechanics: 101043705 (European Commission) HyperSpace: 101070168 (European Commission)
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Project (external):
FFG
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Project ID:
FO999897481
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Research Areas:
Photonics: 50% Design and Engineering of Quantum Systems: 50%