Satellite‐Based Quantum Steering under the Influence of Spacetime Curvature of the Earth

  title={Satellite‐Based Quantum Steering under the Influence of Spacetime Curvature of the Earth},
  author={Tonghua Liu and Jiliang Jing and Jieci Wang},
  journal={Advanced Quantum Technologies},
Spacetime curvature of the Earth deforms wave packets of photons sent from the Earth to satellites, thus influencing the quantum state of light. We show that Gaussian steering of photon pairs, which are initially prepared in a two‐mode squeezed state, is affected by the curved spacetime background of the Earth. We demonstrate that quantum steerability of the state increases for a specific range of height h and then gradually approaches a finite value with further increasing height of the… 
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