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Related Experiment Videos

Quantum computing with electrons floating on liquid helium

Platzman1, Dykman

  • 1Bell Laboratories, Lucent Technologies, Murray Hill, NJ 07974, USA. Michigan State University, Department of Physics and Astronomy, East Lansing, MI 48824, USA.

Science (New York, N.Y.)
|June 18, 1999
PubMed
Summary
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Researchers propose using electrons trapped above liquid helium as quantum bits. These strongly interacting quantum bits can be manipulated with electric fields, offering a new avenue for quantum computing research.

Area of Science:

  • Quantum physics
  • Condensed matter physics
  • Quantum information science

Background:

  • Electrons trapped above liquid helium offer a promising platform for quantum computing due to their strong interactions and long coherence times.
  • Previous research has explored various systems for quantum bits, but challenges remain in manipulation and scalability.

Purpose of the Study:

  • To propose a novel quantum bit system using quasi-two-dimensional electrons trapped above liquid helium.
  • To outline methods for manipulating and reading out quantum information stored in these electron systems.

Main Methods:

  • Confining electrons in one-dimensional hydrogenic levels above a liquid helium film using micrometer-sized metal pads.
  • Utilizing electric fields for manipulating electron wave functions at millikelvin temperatures.

Related Experiment Videos

  • Employing an inverted dc voltage for readout by releasing excited electrons.

    • Main Results:

    • Demonstrated the feasibility of creating a strongly interacting set of quantum bits using trapped electrons.
    • Achieved manipulation of electron wave functions in nanoseconds.
    • Observed wave function coherence times of 0.1 milliseconds.

    Conclusions:

    • The proposed system of electrons trapped above liquid helium is a viable and easily manipulated platform for quantum bits.
    • This approach holds potential for advancing quantum information processing and quantum computing technologies.