Discovery of Blackbody Stars and the Accuracy of SDSS photometry

Fukugita, M.

doi:10.1017/s1743921319005155

Cited by 3 publications

(1 citation statement)

References 9 publications

(13 reference statements)

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“…SNR calculations are provided by Saha (2019). A target list should include Helium white dwarfs (Fukugita 2020) and targets listed in Lacki et al (2020).…”

Section: Conclusion and Next Stepsmentioning

confidence: 99%

Searching for interstellar quantum communications

Hippke

2021

Preprint

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The modern search for extraterrestrial intelligence (SETI) began with the seminal publications of Cocconi & Morrison (1959) and Schwartz & Townes (1961), who proposed to search for narrow-band signals in the radio spectrum, and for optical laser pulses. Over the last six decades, more than one hundred dedicated search programs have targeted these wavelengths; all with null results. All of these campaigns searched for classical communications, that is, for a significant number of photons above a noise threshold; with the assumption of a pattern encoded in time and/or frequency space. I argue that future searches should also target quantum communications. They are preferred over classical communications with regards to security and information efficiency, and they would have escaped detection in all previous searches. The measurement of Fock state photons or squeezed light would indicate the artificiality of a signal. I show that quantum coherence is feasible over interstellar distances, and explain for the first time how astronomers can search for quantum transmissions sent by ETI to Earth, using commercially available telescopes and receiver equipment.

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“…SNR calculations are provided by Saha (2019). A target list should include Helium white dwarfs (Fukugita 2020) and targets listed in Lacki et al (2020).…”

Section: Conclusion and Next Stepsmentioning

confidence: 99%

Searching for interstellar quantum communications

Hippke

2021

Preprint

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Spectral distortions of astrophysical blackbodies as axion probes

Chang,

Ebadi,

Luo

et al. 2023

Phys. Rev. D

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Searching for Interstellar Quantum Communications

Hippke

2021

View full text Add to dashboard Cite

The modern search for extraterrestrial intelligence began with the seminal publications of Cocconi & Morrison and Schwartz & Townes, who proposed searching for narrowband signals in the radio spectrum and optical laser pulses. Over the last six decades, more than 100 dedicated search programs have targeted these wavelengths, all with null results. All of these campaigns searched for classical communications, that is, for a significant number of photons above a noise threshold, with the assumption of a pattern encoded in time and/or frequency space. I argue that future searches should also target quantum communications. They are preferred over classical communications with regard to security and information efficiency, and they would have escaped detection in all previous searches. The measurement of Fock state photons or squeezed light would indicate the artificiality of a signal. I show that quantum coherence is feasible over interstellar distances and explain for the first time how astronomers can search for quantum transmissions sent by ETI to Earth using commercially available telescopes and receiver equipment.

show abstract

Discovery of Blackbody Stars and the Accuracy of SDSS photometry

Cited by 3 publications

References 9 publications

Searching for interstellar quantum communications

Searching for interstellar quantum communications

Spectral distortions of astrophysical blackbodies as axion probes

Searching for Interstellar Quantum Communications

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