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Research News

May 3, 2012 | Research News

Fast, Low-power All-optical Switch

An optical switch developed at the JQI spurs the prospective integration of photonics and electronics.

April 19, 2012 | Research News

Inequality and Investment Bubbles

When it comes to income distribution, the rich and poor each have their own curves.

April 17, 2012 | Research News

Finding Majorana - Update

A group at Delft University in the Netherlands led by L.P. Kouwenhoven has published experimental signatures of Majorana particles. The experiment precisely follows the theoretical proposals made in 2010 by Sankar Das Sarma and his collaborators at JQI.

April 5, 2012 | Research News

Micromechanical Mirror Performs Under Pressure...Of Light

A team of scientists from PML's Quantum Measurement Division has designed and tested a novel device that may lead to substantial progress in the new and fast-moving field of optomechanics.

First, Fast, Faster
April 5, 2012 | Research News

First, Fast, and Faster

Scientists in PML’s Quantum Measurement Division have produced the first superluminal light pulses made by using a technique called four-wave mixing, creating two separate pulses whose peaks propagate faster than the speed of light in a vacuum.

Optical ring resonator, K. Srinivasan, JQI
March 21, 2012 | Research News

A One-way Street for Light

Researchers propose using ring resonators to construct a micro-optical diode that can be used for quantum information.

Model for ion-circuit coupling. C stands for capacitance and L stands for inductance. Image Credit: PRL Authors
March 5, 2012 | Research News

Quantum Conveyance: Electrical Circuits Talk to Single Atoms

A new paper in the journal Physical Review Letters proposes a way an electrical circuit can enable the transfer of quantum information encoded in a single ion to other quantum systems, such as another isolated ion.

February 23, 2012 | Research News

Atomtronics: A New Phase

Just as NASA engineers test new rocket designs in computer studies before committing themselves to full prototypes, so physicists will often model matter under various circumstances to see whether something new appears. This is especially true of atomtronics, a relatively new science devoted to creating artificial tailored materials consisting of neutral atoms held in an array with laser beams, or atoms moving along a desired track under electric or magnetic influence.

Image credit: E. Edwards; circuit diagram courtesy of authors.
February 3, 2012 | Research News

Electrons in Concert: A Simple Probe for Collective Motion in Ultracold Plasmas

Collective, or coordinated behavior is routine in liquids, where waves can occur as atoms act together. In a milliliter (mL) of liquid water, 1022 molecules bob around, colliding. When a breeze passes by, waves can form across the surface. These waves are not present in the same volume of air, where only 1019 gas molecules randomly move about.

Credit: Taylor/NIST
January 24, 2012 | Research News

Cool Nano Loudspeakers Could Make for Better MRIs, Quantum Computers

A team of physicists from the Joint Quantum Institute (JQI), the Neils Bohr Institute in Copenhagen, Denmark, and Harvard University has developed a theory describing how to both detect weak electrical signals and cool electrical circuits using light and something very like a nanosized loudspeaker.