"We'd like to pattern these single photon emitters into circuits or networks on a microchip so they can talk to each other, or to other existing qubits, like solid-state spins or superconducting circuit
The qubits in a superconducting circuit
are also easier to manipulate and less delicate than individual photons or ions.
Scientists at the National Institute of Standards and Technology's Quantum Information Program in Boulder, Colo., have developed what they call a dimmer switch for a superconducting circuit
that links a quantum bit--called a qubit--and a quantum bus.
Scientists at UC Santa Barbara have devised a new type of superconducting circuit
that behaves quantum mechanically--but has up to five levels of energy instead of the usual two.
The researchers took a microscopic mechanical aluminum drum - diameter of 20 micrometers and thickness of 100 nanometers - and put it in a superconducting circuit
, which itself was placed inside an electromagnetic cavity.
For all their sparkle, diamonds aren't the only way to bling out a superconducting circuit
with prewrapped qubits.
This technique is based on a superconducting circuit
that siphons away "hot" electrons and replaces them with "cold" ones.
The magnetic measurements will also locate the vortices -- small eddies of current -- that form under certain conditions in superconducting materials, and determine whether the vortices are immobile (pinned) in a single location or can move around the superconducting circuit
and thereby generate resistance to supercurrent flow.
In the quantum sciences, it bears great promise to overcome the dichotomy between superconducting circuit
platforms for information processing, and flying optical photons for its communication.
Exciting advances in cavity Quantum Electro-Dynamics (QED) and superconducting circuit
QED make strong photon-photon interactions now accessible.
The first steps for solving this issue have been made in 1995, when scientists have laid the foundations for a technology based on a trapped ion system  and afterwards, in 1999, for a technology employing superconducting circuits
are promising candidates for quantum processors as they perform fast high-fidelity gate operations but have short coherence times.