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Physics Frontier Center News

October 18, 2019 | PFC | Research News

Hybrid Device among First to Meld Quantum and Conventional Computing

Researchers at the University of Maryland (UMD) have trained a small hybrid quantum computer to reproduce the features in a particular set of images.

October 14, 2019 | PFC | Research News

Stretched Photons Recover Lost Interference

The smallest pieces of nature—individual particles like electrons, for instance—are pretty much interchangeable. An electron is an electron is an electron, regardless of whether it’s stuck in a lab on Earth, bound to an atom in some chalky moon dust or shot out of an extragalactic black hole in a superheated jet. In practice, though, differences in energy, motion or location can make it easy to tell two electrons apart.

August 2, 2019 | PFC | Research News

Corkscrew photons may leave behind a spontaneous twist

Everything radiates. Whether it's a car door, a pair of shoes or the cover of a book, anything hotter than absolute zero (i.e., pretty much everything) is constantly shedding radiation in the form of photons, the quantum particles of light.

A twin process—absorption—is usually also present. As photons carry away energy, passers-by from the environment can be absorbed to replenish it. When absorption and emission occur at the same rate, scientists say that an object is in equilibrium with its environment. This often means that object and environment share the same temperature.

June 17, 2019 | PFC | Research News

Ring resonators corner light

Researchers at the Joint Quantum Institute (JQI) have created the first silicon chip that can reliably constrain light to its four corners. The effect, which arises from interfering optical pathways, isn't altered by small defects during fabrication and could eventually enable the creation of robust sources of quantum light.

June 6, 2019 | PFC | People News

Gorshkov student, Kevin Qian, wins 2nd place in prestigious international science fair

Kevin Qian of Montgomery Blair High School placed 2nd in the Physics and Astronomy category at the International Science and Engineering Fair (ISEF) 2019 with his research topic “Heisenberg-Scaling Measurement Protocol for Analytic Functions with Quantum Sensor Networks.” Qian worked with Adjunct Associate Professor Alexey Gorshkov and graduate studen

June 6, 2019 | PFC | People News

JQI Fellow Hafezi Named Finalist for Blavatnik Award

JQI Fellow Mohammad Hafezi has been named a finalist for the 2019 Blavatnik National Awards for Young Scientists.

May 17, 2019 | PFC | Research News

High-resolution imaging technique maps out an atomic wave function

From NIST News

JQI researchers have demonstrated a new way to obtain the essential details that describe an isolated quantum system, such as a gas of atoms, through direct observation. The new method gives information about the likelihood of finding atoms at specific locations in the system with unprecedented spatial resolution. With this technique, scientists can obtain details on a scale of tens of nanometers—smaller than the width of a virus.

March 25, 2019 | PFC | People News

JQI Fellow Manucharyan receives Google Faculty Research Award

Google AI recently announced that JQI Fellow Vlad Manucharyan is among the recipients for this year's Google Faculty Research Awards. The program supports technical research in areas such as machine learning and quantum computing, the latter of which is Manucharyan's area of specialty. In the 2018 awards cycle the program funded 158 of the 910 proposed projects. 

March 6, 2019 | PFC | Research News

Ion experiment aces quantum scrambling test

Researchers at the Joint Quantum Institute have implemented an experimental test for quantum scrambling, a chaotic shuffling of the information stored among a collection of quantum particles. Their experiments on a group of seven atomic ions, reported in the March 7 issue of Nature, demonstrate a new way to distinguish between scrambling—which maintains the amount of information in a quantum system but mixes it up—and true information loss.

February 1, 2019 | PFC | Research News

Glass fibers and light offer new control over atomic fluorescence

Electrons inside an atom whip around the nucleus like satellites around the Earth, occupying orbits determined by quantum physics. Light can boost an electron to a different, more energetic orbit, but that high doesn’t last forever. At some point the excited electron will relax back to its original orbit, causing the atom to spontaneously emit light that scientists call fluorescence.   

December 20, 2018 | PFC | Research News

Cold atoms offer a glimpse of flat physics

These days, movies and video games render increasingly realistic 3-D images on 2-D screens, giving viewers the illusion of gazing into another world. For many physicists, though, keeping things flat is far more interesting.

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