PIRSA:14060021 Conference

DOI10.48660/14060021

Conference/School: New ideas in low-energy tests of fundamental physics

Lukin, M. (2014). A quantum network of clocks. Perimeter Institute. https://pirsa.org/14060021

Lukin, Mikhail. A quantum network of clocks. Perimeter Institute, Jun. 17, 2014, https://pirsa.org/14060021 

@misc{ pirsa_PIRSA:14060021,
  doi = {10.48660/14060021},
  url = {https://pirsa.org/14060021},
  author = {Lukin, Mikhail},
  keywords = {},
  language = {en},
  title = {A quantum network of clocks},
  publisher = {Perimeter Institute},
  year = {2014},
  month = {jun},
  note = {PIRSA:14060021 see, \url{https://pirsa.org}}
}

Abstract

By combining precision metrology and quantum networks, we describe a quantum, cooperative protocol for the operation of a network consisting of geographically remote optical atomic clocks. Using non-local entangled states, we demonstrate an optimal utilization of the global network resources, and show that such a network can be operated near the fundamental limit set by quantum theory yielding an ultra-precise clock signal. Besides serving as a real-time clock for the international time scale, the proposed quantum network also represents a large-scale quantum sensor that can be used to probe the fundamen- tal laws of physics, including relativity and connections between space-time and quantum physics. Prospects for realization of such networks will be discussed.

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