Condensed Matter Seminar Series
Robust two-qubit quantum gates
UNC Chapel Hill
Thursday February 03, 11:30 am, Room 234, Physics Building
Host: Harold Baranger
We carry out a systematic analysis of a pair of coupled qubits,
each of which is subject to its own dissipative environment.
We find a combination of the inter-qubit
couplings that provides for the lowest possible decoherence rates of the
Using this result, we construct optimized implementations of the CNOT
and other universal two-qubit gates that are carried out in a single step.
The new protocols require tunable inter-qubit couplings but,
in return, show a significant improvements in the quality of gate