Qubits structure and coherence in a one-way quantum computer

摘要

Present days efforts for building up an operative quantum computer made of silicon soon they will take shape. One of the main challenges to this task is to implement qubit coherence in a practical way. We make emphasis in some physical characteristics (such as the structure) of the basic components (qubits) of a silicon one-way quantum computer which can be exploited in order to implement qubit coherence. Altogether with this, we introduce form factors (accounting for the qubit structure), and calculate times of coherence. It is found that the nuclei states last longer than their electronic counterpart. However, this stability of nuclei qubits limits the speed at which the computer can carry out instructions and process the information.