document: Numerical simulation of information recovery in quantum computers Decoherence is the main problem to be solved before quantum computers can be built . To control decoherence , it is possible to use error correction methods , but these methods are themselves noisy quantum computation processes . In this work , we study the ability of Steane 's and Shor 's fault-tolerant recovering methods , as well as a modification of Steane 's ancilla network , to correct errors in qubits . We test a way to measure correctly ancilla 's fidelity for these methods , and state the possibility of carrying out an effective error correction through a noisy quantum channel , even using noisy error correction methods
doc_bio_tags: B I O B I O B I O O O O O O O O O B I O O O O O O O O O O O O O B I I O O O O O O B I I I O O O O O O O O O O O O O O O O O O O O O O O O O O O B I O O O O O B O O O O O O O O O O O O O O O O O O O O O O O O O O O O B I I O O O O B I I
extractive_keyphrases: numerical simulation information recovery quantum computers error correction methods noisy quantum computation processes ancilla network qubits noisy quantum channel
abstractive_keyphrases: decoherence control fault-tolerant recovering methods ancilla fidelity noisy error correction methods