Fault-tolerant quantum computation versus Gaussian noise
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چکیده
منابع مشابه
Fault-tolerant quantum computation versus Gaussian noise
The theory of fault-tolerant quantum computation shows that properly encoded quantum information can be protected against decoherence and processed reliably with imperfect hardware 1 . Demonstrating that this theory really works in practice is one of the great challenges facing contemporary science. A large-scale fault-tolerant quantum computer would be a scientific milestone, and it should als...
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It has recently been realized that use of the properties of quantum mechanics might speed up certain computations dramatically. Interest in quantum computation has since been growing. One of the main difficulties in realizing quantum computation is that decoherence tends to destroy the information in a superposition of states in a quantum computer, making long computations impossible. A further...
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We prove a new version of the quantum accuracy threshold theorem that applies to non-Markovian noise with algebraically decaying spatial correlations. We consider noise in a quantum computer arising from a perturbation that acts collectively on pairs of qubits and on the environment, and we show that an arbitrarily long quantum computation can be executed with high reliability in D spatial dime...
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ژورنال
عنوان ژورنال: Physical Review A
سال: 2009
ISSN: 1050-2947,1094-1622
DOI: 10.1103/physreva.79.032318