Decoherence and Quantum Error Correction

  • János A. Bergou
  • Mark Hillery
Part of the Graduate Texts in Physics book series (GTP)


One of the biggest problems in building a quantum computer is noise or decoherence. Qubits are coupled to other systems whether we want them to be or not, e.g., atoms couple to the electromagnetic field and spins couple to other spins via dipole–dipole interactions. These unwanted couplings can cause errors, and we need to protect quantum information against these errors.


Protect Quantum Information Code Subspace Phase Decoherence Parity-check Matrix Quantum Codes 
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  1. 1.
    J. Preskill, Lecture notes for Physics 219: Quantum Computation.
  2. 2.
    D.A. Lidar, K.B. Whaley, Decoherence-free subspaces. In Irreversible Quantum Dynamics, ed. by F. Benatti, R. Floreanini. Lecture Notes in Physics, vol. 622 (Springer, Berlin, 2003), p. 83 and quant-ph/0301032Google Scholar

Copyright information

© Springer Science+Business Media New York 2013

Authors and Affiliations

  • János A. Bergou
    • 1
  • Mark Hillery
    • 1
  1. 1.Department of Physics and AstronomyHunter College City University of New YorkNew YorkUSA

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