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arXiv:1107.2939quant-ph

Longer-Baseline Telescopes Using Quantum Repeaters

Daniel Gottesman, Thomas Jennewein, Sarah Croke

Abstract

We present an approach to building interferometric telescopes using ideas of quantum information. Current optical interferometers have limited baseline lengths, and thus limited resolution, because of noise and loss of signal due to the transmission of photons between the telescopes. The technology of quantum repeaters has the potential to eliminate this limit, allowing in principle interferometers with arbitrarily long baselines.

arXiv comments
10 pages, v2 improved clarity
Journal reference
Phys. Rev. Lett. 109, 070503 (2012)
DOI
doi:10.1103/PhysRevLett.109.070503
Subjects
quant-phQuantum Physics astro-ph.IMInstrumentation and Methods for Astrophysics

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Discussed in comments2 threads

  1. A rudimentary quantum network link between Dutch cities 1 comment

    • One application we care about is using quantum computers to build high resolution telescopes https://arxiv.org/abs/1107.2939. A wide area network is required because the telescopes need to be far apart.

      vtomoleView on HNParent context

  2. Chinese satellite is one giant step for the quantum internet 1 comment

    • I believe they're referring to this proposal by Gottesman [0]. I will try to explain in layman's terms what is happening: the simplest telescope array you can imagine is just two telescopes separated by what is called the baseline. The telescopes could either just detect light…

      briankirbyView on HNParent context

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