• Corpus ID: 119005571

The Quantum Abacus: Analog Computing using Surface Rydberg States

@article{Lerner2018TheQA,
  title={The Quantum Abacus: Analog Computing using Surface Rydberg States},
  author={Peter B. Lerner},
  journal={arXiv: Quantum Physics},
  year={2018}
}
  • 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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References

SHOWING 1-10 OF 11 REFERENCES
Adsorbate dynamics on a silica-coated gold surface measured by Rydberg Stark spectroscopy
Trapping a Rydberg atom close to a surface is an important step towards the realisation of many proposals for quantum information processing or hybrid quantum systems. One of the challenges in these
Benchmarking a Teleportation Protocol realized in Superconducting Circuits
Teleportation of a quantum state may be used for distributing entanglement between distant qubits in quantum communication and for quantum computation. Here we demonstrate the implementation of a
Coupling an ensemble of electrons on superfluid helium to a superconducting circuit
The quantized lateral motional states and the spin states of electrons trapped on the surface of superfluid helium have been proposed as basic building blocks of a scalable quantum computer. Circuit
Benchmarking a quantum teleportation protocol in superconducting circuits using tomography and an entanglement witness.
TLDR
This work demonstrates the implementation of a teleportation protocol, up to the single-shot measurement step, with superconducting qubits coupled to a microwave resonator, and shows that the protocol generates a genuine tripartite entangled state of all three qubits.
Signal and charge transfer efficiency of few electrons clocked on microscopic superfluid helium channels
Electrons floating on the surface of liquid helium are possible spin qubits for quantum information processing. Varying electric potentials are not expected to modify spin states, which allows their
Observation of atomiclike electronic excitations in pure 3He and 4He clusters studied by fluorescence excitation spectroscopy.
TLDR
The line shifts and widths of the bands of 3He and 4He clusters of the same size are different and correlate with the average particle density inside the clusters calculated using the density functional method.
Microwave-resonance-induced resistivity: evidence of ultrahot surface-state electrons on liquid 3He.
TLDR
It is shown that the resonant microwave excitation of surface-state electrons is accompanied by a strong increase in their resistivity, which is opposite to the result expected from the previously used two-level model.
Surface study of liquid3He using surface state electrons
We have measured the mobility of surface state electrons (SSE) on liquid3He, μ3, aiming to study the elementary surface excitations of the Fermi liquid. A gradual increase of μ3 below 300 mK is
Addressing single trapped ions for Rydberg quantum logic
We demonstrate the excitation of ions to the Rydberg state 22 F by vacuum ultraviolet radiation at a wavelength of 123 nm combined with the coherent manipulation of the optical qubit transition in 40
Quantum computing with qubits made from electrons on a helium film
A quantum computer based on the manipulation and detection of coherent states of electrons localized above a helium film is described. Each quantum logic element (qubit) is made of a combination of
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