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News & Highlights

Research Highlights

Published: Mon, 09/18/2017 - 9:15am

Quantum computers require systems that can encode, manipulate, and transmit quantum bits, or qubits. A creative way to accomplish all this was recently demonstrated by Adam Reed and his colleagues in the Lehnert group. The researchers converted propagating qubits (encoded as superpositions1 of zero and one microwave photons) into the motion of a tiny aluminum drum. The successful conversion is considered a key step in using a mechanical drum to (1) transfer quantum information between microwave and optical frequencies or (2) store quantum information inside a quantum computer.

“We wanted to ask whether these electromechanical devices could manipulate fragile signals that encode quantum information,” Reed explained. “We’re trying to determine how suitable this device is for quantum information applications.”

And the answer is: The Lehnert group is getting there. When the researchers measure how the state encoded in the drum’s motion compares with the original propagating qubits, they find that the fidelity is about 80% for any qubit state they convert, which is not too bad for a brand...

Published: Aug 11, 2016

Graduate student Greg Salvesen, JILA Collaborator Jake Simon (Southwest Research Institute), and...

Published: Jul 28, 2016

Physics education researchers from the University of Colorado Boulder and the University of...

Published: Jul 28, 2016

Newly minted Ph.D. Ming-Guang Hu and his colleagues in the Jin...

Published: Jul 27, 2016

Fellow Phil Armitage and group collaborator Jacob Simon of the Southwest Research Institute are...

Published: Jul 21, 2016

The Raschke group has created an ultrafast optical nanoscope based on a unique way of “nano”...

Published: Jul 20, 2016

Bob Peterson and his colleagues in the Lehnert-Regal lab recently set out to try something that...

Published: Jun 28, 2016

Fellow Judah Levine recently presented a discussion of our understanding of time from antiquity...

Published: Jun 02, 2016

The Kapteyn/Murnane group has measured how long it takes an electron born into an excited state...

Published: May 04, 2016

The Ye group just solved a major problem for using...

Published: Apr 21, 2016

Move over, single-atom laser cooling! The Holland theory group has just come up with a stunning...

Published: Apr 20, 2016

The old JILA molecule factory (built in 2002) produced the world’s first ultracold polar...

Published: Mar 31, 2016

The Ye and Rey groups have discovered the strange rules of quantum baseball in which strontium (...

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