Many-body effects in multi-qubit arrays

Dmitri Khveshchenko

Physica and Astronomy

A successful implementation of quantum protocols requires a controlled creation of and manipulation with coherent entangled states of N>>1 qubits which, in turn, demands a systematic account of the combined effects of both the qubit-bath and qubit-qubit couplings. We present a theoretical analysis of some of the optimal conditions for creating controlled entanglement and maintaining coherence of interacting qubit systems in the presence of generic noisy environments, both during and in between consecutive gate operations.