Lara Faoro

Entangling power of quantum evolutions

We analyze the entangling capabilities of unitary transformations U acting on a bipartite

Decoherence and1/fNoise in Josephson Qubits

{(d}_{1}\ifmmode\times\else\texttimes\fi{}{d}_{2})

Non-abelian holonomies, charge pumping, and quantum computation with Josephson junctions

-dimensional quantum system. To this aim we introduce an entangling power measure

Microscopic model of quantum butterfly effect: out-of-time-order correlators and traveling combustion waves

e(U)

Microscopic origin of low-frequency flux noise in josephson circuits.

given by the mean linear entropy produced acting with U on a given distribution of pure product states. This measure admits a natural interpretation in terms of quantum operations. For a uniform distribution explicit analytical results are obtained using group-theoretic arguments. The behavior of the features of

Quantum entanglement and classical communication through a depolarizing channel

e(U)

Microscopic origin of critical current fluctuations in large, small, and ultra-small area Josephson junctions

as the subsystem dimensions

Quantum two level systems and kondo-like traps as possible sources of decoherence in superconducting qubits.

{d}_{1}

Damping in high-frequency metallic nanomechanical resonators

and

Internal loss of superconducting resonators induced by interacting two-level systems.

{d}_{2}