Quantum physics in space

Belenchia, Alessio; Carlesso, Matteo; Bayraktar, Ömer; Dequal, Daniele; Derkach, Ivan; Gasbarri, Giulio; Herr, Waldemar; Li, Ying Lia; Rademacher, Markus; Sidhu, Jasminder S.; Oi, Daniel K. L.; Seidel, Stephan; Kaltenbaek, Rainer; Marquardt, Christoph; Usenko, Vladyslav C.; Wörner, Lisa; Xuereb, André; Paternostro, Mauro; Bassi, Angelo

doi:10.1016/j.physrep.2021.11.004

Cited by 63 publications

(43 citation statements)

References 622 publications

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“…Space-based quantum optical links support future networking applications for quantum sensing, quantum communications, and quantum information science [ 1 – 4 ]. In addition, such links enable new scientific experiments impossible to reach in terrestrial experiments [ 5 ].…”

Section: Introduction: the Case For Deep Space Quantum Opticsmentioning

confidence: 99%

The deep space quantum link: prospective fundamental physics experiments using long-baseline quantum optics

Mohageg

Mazzarella

Strekalov

et al. 2022

EPJ Quantum Technol.

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The National Aeronautics and Space Administration’s Deep Space Quantum Link mission concept enables a unique set of science experiments by establishing robust quantum optical links across extremely long baselines. Potential mission configurations include establishing a quantum link between the Lunar Gateway moon-orbiting space station and nodes on or near the Earth. This publication summarizes the principal experimental goals of the Deep Space Quantum Link. These goals, identified through a multi-year design study conducted by the authors, include long-range teleportation, tests of gravitational coupling to quantum states, and advanced tests of quantum nonlocality.

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Section: Introduction: the Case For Deep Space Quantum Opticsmentioning

confidence: 99%

The deep space quantum link: prospective fundamental physics experiments using long-baseline quantum optics

Mohageg

Mazzarella

Strekalov

et al. 2022

EPJ Quantum Technol.

Self Cite

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“…Recently, there has been an interest in using quantum sensors, and especially those in space, to detect dark matter [e.g., 53,54]. Atom interferometers, in particular, offer an interesting and complementary pathway to dark matter detection compared to conventional searches.…”

Section: Introductionmentioning

confidence: 99%

Atom Interferometer Tests of Dark Matter

Du¹,

Murgui²,

Pardo³

et al. 2022

Preprint

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Direct detection experiments for dark matter are increasingly ruling out large parameter spaces. However, light dark matter models with particle masses < GeV are still largely unconstrained. Here we examine a proposal to use atom interferometers to detect a light dark matter subcomponent at sub-GeV masses. We describe the decoherence and phase shifts caused by dark matter scattering off of one "arm" of an atom interferometer using a generalized dark matter direct detection framework. This allows us to consider multiple channels: nuclear recoils, hidden photon processes, and axion interactions. We apply this framework to several proposed atom interferometer experiments. Because atom interferometers are sensitive to extremely low momentum deposition and their coherent atoms give them a boost in sensitivity, these experiments will be highly competitive and complementary to other direct detection methods. In particular, atom interferometers are uniquely able to probe a dark matter sub-component with mχ 10 keV. We find that, for a mediator mass m φ = 10 −10 mχ, future atom interferometers could close a gap in the existing constraints on nuclear recoils down to σn ∼ 10 −50 cm 2 for mχ ∼ 10 −5 − 10 −1 MeV dark matter masses.

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“…Space-based segments provide a practical route to overcome this and realise global quantum networking [6]. With quantum key distribution (QKD) being a frontrunner in early applications of quantum technologies, satellite-based QKD (SatQKD) has become a precursor to early applications of general quantum communications protocols [7,8]. Although a general purpose quantum network [9] will require substantial advancements in quantum memories and routing techniques, a satellitebased QKD system adds to the progress of global-scale quantum networks by driving the maturation of spacebased long-distance quantum links.…”

Section: Introductionmentioning

confidence: 99%

Finite resource performance of small satellite-based quantum key distribution missions

Islam¹,

Sidhu²,

Higgins³

et al. 2022

Preprint

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In satellite-based quantum key distribution (QKD), the number of secret bits that can be generated in a single satellite pass over the ground station is severely restricted by the pass duration and the free-space optical channel loss. High channel loss may decrease the signal-to-noise ratio due to background noise, reduce the number of generated raw key bits, and increase the quantum bit error rate (QBER), all of which have detrimental effects on the output secret key length. Under finite-size security analysis, higher QBER increases the minimum raw key length necessary for non-zero key length extraction due to less efficient reconciliation and post-processing overheads. We show that recent developments in finite key analysis allow three different small-satellite-based QKD projects CQT-Sat, UK-QUARC-ROKS, and QEYSSat to produce secret keys even under very high loss conditions, improving on estimates based on older finite key bounds.

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Quantum physics in space

Cited by 63 publications

References 622 publications

The deep space quantum link: prospective fundamental physics experiments using long-baseline quantum optics

The deep space quantum link: prospective fundamental physics experiments using long-baseline quantum optics

Atom Interferometer Tests of Dark Matter

Finite resource performance of small satellite-based quantum key distribution missions

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