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Research Highlights

Published: Fri, 04/21/2017 - 8:15am

The Regal group recently met the challenge of measurements in an extreme situation with a device called an interferometer. The researchers succeeded by using creative alterations to the device itself and quantum correlations. Quantum correlations are unique, and often counterintuitive, quantum mechanical interactions that occur among quantum objects such as photons and atoms. The group exploited these interactions in the way they set up their interferometer, and improved its ability to measure tiny motions using photons (particles of light).

The group started with an ordinary interferometer, a device that has long been used for making precision measurements. However, this particular interferometer included a tiny vibrating membrane. In typical interferometers, sending more photons into the device improves the measurement precision.  But, the Regal group accesses a strange regime in which sending more photons into the interferometer actually reduced the precision of the measurements.

But instead of giving up on improving their measurements, the researchers were able to make a record-setting measurement of a vibrating mechanical membrane in the interferometer....

Published: Oct 31, 2016

Far-red fluorescent light emitted from proteins could one day illuminate the inner workings of...

Published: Oct 27, 2016

Using frequency comb spectroscopy, the Ye group has directly observed transient intermediate...

Published: Sep 26, 2016

The Nesbitt group has invented a nifty technique for exploring the physics and chemistry of a...

Published: Sep 26, 2016

Exciting new theory from the Rey group reveals the profound effects of electron interactions on...

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...

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