Coherence-preserving quantum bits.

@article{Bacon2001CoherencepreservingQB,
  title={Coherence-preserving quantum bits.},
  author={D. Bacon and K. Brown and K. Whaley},
  journal={Physical review letters},
  year={2001},
  volume={87 24},
  pages={
          247902
        }
}
  • D. Bacon, K. Brown, K. Whaley
  • Published 2001
  • Physics, Medicine
  • Physical review letters
  • Real quantum systems couple to their environment and lose their intrinsic quantum nature through the process known as decoherence. Here we present a method for minimizing decoherence by making it energetically unfavorable. We present a Hamiltonian made up solely of two-body interactions between four two-level systems (qubits) which has a 2-fold degenerate ground state. This degenerate ground state has the property that any decoherence process acting on an individual physical qubit must supply… CONTINUE READING

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