• Corpus ID: 119005571

The Quantum Abacus: Analog Computing using Surface Rydberg States

  title={The Quantum Abacus: Analog Computing using Surface Rydberg States},
  author={Peter B. Lerner},
  journal={arXiv: Quantum Physics},
  • P. Lerner
  • Published 21 February 2018
  • Physics
  • arXiv: Quantum Physics
Recently, Rydberg atoms appeared as a viable alternative to the quantum gates built on atomic or molecular ions. The lifetimes of the circular Rydberg states can be in the millisecond range. That prevents inherent metastability of the Rydberg atoms to influence computation at the typical decoherence times, which are now being achieved in the range of 1 ms. The paper proposes to use a pinning potential of an image charge on a cryogenic substrate (liquid He, in particular) to confine large… 

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