superconducting qubits tagged posts

Researchers at the Harvard John A. Paulson School of Engineering and Applied Sciences (SEAS) have demonstrated, for the first time, a single quantum of vibrational energy interacting with a single atomic spin, seeding a pathway to quantum technologies that use sound as an information carrier, instead of light or electricity. The results are published in Nature.

Led by Marko Lončar, the Tiantsai Lin Professor of Electrical Engineering, the researchers engineered a nanometer-scale mechanical resonator around a single color-center spin qubit in diamond...

Researchers at the National Institute of Standards and Technology (NIST) have constructed and tested a system that allows commercial electronic components—such as microprocessors on circuit boards—to operate in close proximity with ultracold devices employed in quantum information processing. That design allows 4X as much data to be output for the same number of connected wires.

In the rising excitement about quantum computing, it can be easy to overlook the physical fact that the data produced by manipulation of quantum bits (qubit...

This illustration shows a qubit attached to a waveguide where light in the form of microwaves enters and exits. Credit: University of Waterloo

Researchers at the University of Waterloo’s Institute for Quantum Computing (IQC) recorded an interaction between light and matter 10X larger than previously seen. The strength of the interaction between photons and a qubit was so large that it opens the door to a realm of physics and applications unattainable until now. “We are enabling the investigation of light-matter interactions in a new domain in quantum optics,” said Pol Forn-Diaz, a postdoctoral fellow at IQC. “The possibilities are exciting because our circuit could potentially act as a quantum simulator to study other interesting quantum systems in nature.”

The ultrastrong coupling between...