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Examples of different types of symmetry. (Image: Murch laboratory)
Complex energies, quantum symmetries

October 8, 2019

In a certain sense, physics is the study of the universe’s symmetries. Physicists strive to understand how systems…
Astronomers Count all the Photons in the Universe

December 7, 2018

Spoiler alert: 4,000,000,000,000,000,000, 000,000,000,000,000,000,000,000,000,000, 000,000,000,000,000,000,000,000,000,000, 000,000 photons. Imagine yourself in a boat on a great ocean, the water…
Penn Engineering groups awarded NSF grants to work toward ‘quantum leap’

September 26, 2018

The National Science Foundation has awarded two of eight nationwide Research Advanced by Interdisciplinary Science and Engineering (RAISE)…
Nanocrystals Emit Light by Efficiently ‘Tunneling’ Electrons

July 24, 2018

Using advanced fabrication techniques, engineers at the University of California San Diego have built a nanosized device out…
Profiling Extreme Beams: Scientists Devise New Diagnostic for Cutting-Edge and Next-Gen Particle Accelerators

May 10, 2018

Research team aims to measure micron-sized beams at Berkeley Lab’s BELLA Center In this simulation, an electron beam…
It’s a trap! For photons.

March 29, 2018

When a solar cell absorbs a photon of light, it starts an electronic race against time. Two particles…
New Study: Scientists Narrow Down the Search for Dark Photons Using Decade-Old Particle Collider Data

November 8, 2017

In its final years of operation, a particle collider in Northern California was refocused to search for signs…
Photons struggle to escape distant galaxies

January 12, 2017

Astronomers led by David Sobral and Jorryt Matthee, of the Universities of Lancaster in the UK and Leiden…
A watershed moment in understanding how H2O conducts electricity

December 2, 2016

Scientists have taken spectroscopic snapshots of nature’s most mysterious relay race: the passage of extra protons from one…
More reliable way to produce single photons

November 25, 2016

Physicists at the University of Bath have developed a technique to more reliably produce single photons that can…
Scientists set traps for atoms with single-particle precision

November 5, 2016

Atoms, photons, and other quantum particles are often capricious and finicky by nature; very rarely at a standstill,…
Electron-phonon interactions affect heat dissipation in computer chips

October 13, 2016

In the coming years, as more transistors are packed into ever smaller areas within computer chips, MIT engineers…
Ultra-thin quantum LEDs could accelerate development of quantum networks

October 9, 2016

Researchers have developed all-electrical ultra-thin quantum LEDs, which have potential as on-chip photon sources in quantum information applications,…
Researchers make better sense of incoherent light

September 17, 2016

One of the differences between lasers and desk lamps is that laser light is spatially coherent, meaning the…
Neurons form synapse clusters

July 20, 2016

The cerebral cortex resembles a vast switchboard. Countless lines carrying information about the environment, for example from the…
Quantum logic with photons

July 14, 2016

Light particles completely ignore each other. In order that these particles can nevertheless switch each other when processing…
Graphene used as a frequency mixer in new research

June 30, 2016

A professor, a postdoctoral researcher and a graduate student hop onto a trampoline. No, it’s not the opening…
A new trick for controlling emission direction in microlasers

June 19, 2016

Researchers at Washington University in St. Louis have found a way to give photons, or light packets, their…
X-Ray Snapshot of Butterfly Wings Reveals Underlying Physics of Color

June 13, 2016

A team of physicists that visualized the internal nanostructure of an intact butterfly wing has discovered two physical…
Researchers unleash graphene ‘tiger’ for more efficient optoelectronics

May 16, 2016

In the quest to harvest light for electronics, the focal point is the moment when photons — light…
New Nanodevice Shifts Light’s Color at Single-Photon Level

April 19, 2016

Converting a single photon from one color, or frequency, to another is an essential tool in quantum communication,…
Particles in Love: Quantum Mechanics Explored in New Study

February 15, 2016

Here’s a love story at the smallest scales imaginable: particles of light. It is possible to have particles…
Photonics Technology Helps Shrink Telescopes

January 27, 2016

For hundreds of years, the general design of an optical telescope has remained pretty much the same. Even…
Powerhouse crab pulsar

January 14, 2016

The Crab Pulsar has set a new record: it is sending out the most energetic light radiation that…
Unique phononic filter could revolutionize signal processing systems

January 13, 2016

A unique filtering technology that combines light and sound waves on a single chip is expected to better…
Single molecule detection of contaminants, explosives or diseases now possible

January 11, 2016

A technique that combines the ultrasensitivity of surface-enhanced Raman scattering (SERS) with a slippery surface invented by Penn…
‘Star Wars’ Science: The Lightsaber’s Energy Crisis

December 16, 2015

Darth Vader stands opposite Luke Skywalker. His red lightsaber is tethered to an oversize backpack with a battery…
Harvesting more energy from photons

November 5, 2015

Researchers at MIT and elsewhere have found a way to significantly boost the energy that can be harnessed…
Boosting the Efficiency of Solar Panels

October 26, 2015

A UConn researcher has developed a light-harvesting antenna that could double the efficiency of existing solar cell panels…
NIST Puts the Twist on Neutrons – Because It Takes One to Know One

September 24, 2015

A team of scientists working at the National Institute of Standards and Technology (NIST) has found a way…
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