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Solid-state quantum computer based on scanning tunneling microscopy.

G P Berman1, G W Brown, M E Hawley

  • 1T-13 and CNLS, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA.

Physical Review Letters
|September 5, 2001
PubMed
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We propose a solid-state quantum computer using scanning tunneling microscopy (STM) and silicon technology. This approach measures electron spin precession for quantum computation at 10 T and 1 K.

Area of Science:

  • Quantum computing
  • Solid-state physics
  • Nanotechnology

Background:

  • Quantum computation promises significant advancements but faces challenges in scalability and stability.
  • Existing quantum computing architectures require complex infrastructure and are prone to decoherence.
  • Developing robust, scalable solid-state quantum computing platforms is a critical research area.

Purpose of the Study:

  • To propose a novel solid-state nuclear-spin quantum computer design.
  • To leverage scanning tunneling microscopy (STM) for quantum information processing.
  • To utilize well-established silicon technology for fabrication and scalability.

Main Methods:

  • Proposing a quantum computer architecture based on nuclear spins.
  • Employing scanning tunneling microscopy (STM) for qubit manipulation and readout.

Related Experiment Videos

  • Measuring tunneling-current modulation induced by electron spin Larmor precession.

    • Main Results:

    • The proposed design enables quantum computation using single electron spins.
    • The system operates via measurement of tunneling-current modulation.
    • The envisioned device functions at high magnetic fields (approx. 10 T) and low temperatures (approx. 1 K).

    Conclusions:

    • A feasible solid-state quantum computer design is presented.
    • The proposed method offers a pathway for scalable quantum computation.
    • Integration of STM and silicon technology provides a promising avenue for future quantum devices.