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Bulk Spin-Resonance Quantum Computation

Gershenfeld1, Chuang

  • 1N. A. Gershenfeld is at the Physics and Media Group, MIT Media Lab, Cambridge, MA 02139, USA. I. L. Chuang is with the Institute for Theoretical Physics, University of California Santa Barbara, Santa Barbara, CA 93106, USA.

Science (New York, N.Y.)
|January 17, 1997
PubMed
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This study introduces a novel quantum computing approach using multiple-pulse resonance. It manipulates macroscopic ensembles to simulate pure states, overcoming decoherence challenges for practical quantum computation.

Area of Science:

  • Quantum Computing
  • Quantum Information Science
  • Condensed Matter Physics

Background:

  • Quantum computation offers potential for superfast algorithms but faces challenges due to decoherence.
  • Manipulating quantum degrees of freedom while preventing environmental interference is difficult.

Purpose of the Study:

  • To introduce a new, practical approach to quantum computing.
  • To overcome the limitations of environmentally induced decoherence in quantum systems.

Main Methods:

  • Utilizing multiple-pulse resonance techniques.
  • Manipulating the density matrix of a macroscopic ensemble.
  • Simulating a lower-dimensional pure state from a macroscopic system.

Main Results:

Related Experiment Videos

  • A complete prescription for quantum computing using the described method is provided.
  • The approach effectively mimics a pure state from a macroscopic ensemble, mitigating decoherence.

Conclusions:

  • This novel method offers a viable pathway for realizing quantum computation.
  • The technique addresses key challenges in quantum information processing, paving the way for practical applications.