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Physics

Atomic / Molecular / Quantum

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A Bubbly New Way to Detect the Magnetic Fields of Nanometer-Scale Particles

June 10, 2019

As if they were bubbles expanding in a just-opened bottle of champagne, tiny circular regions of magnetism can be rapidly enlarged to provide a precise method...

Table covered with lenses and other optical equipment, and a flat screen mounted high in the background showing a yellow squiggly line across the top and a spiky orange line below.

NIST Infrared Frequency Comb Measures Biological Signatures

June 7, 2019

Researchers at the National Institute of Standards and Technology (NIST) and collaborators have demonstrated a compact frequency-comb apparatus that rapidly...

NIST Physicists ‘Teleport’ Logic Operation Between Separated Ions

May 30, 2019

Physicists at the National Institute of Standards and Technology (NIST) have teleported a computer circuit instruction known as a quantum logic operation...

Square gray cube with two square holes in it and a gold square in between the holes, and a dark brown coffee bean leaning against the cube.

NIST Team Demonstrates Heart of Next-Generation Chip-Scale Atomic Clock

May 17, 2019

Physicists at the National Institute of Standards and Technology (NIST) and partners have demonstrated an experimental, next-generation atomic clock—ticking at...

JQI Researchers Shed New Light on Atomic ‘Wave Function’

May 16, 2019

Physicists have demonstrated a new way to obtain the essential details that describe an isolated quantum system, such as a gas of atoms, through direct...

Entangling Photons of Different Colors

February 25, 2019

Some of the most advanced communication systems now under development rely on the properties of quantum science to store and transport information. However...

Diffuse image of molecules flying through space, with each molecule made of one reddish sphere connected to a smaller blue sphere

JILA Researchers Make Coldest Quantum Gas of Molecules

February 21, 2019

JILA researchers have made a long-lived, record-cold gas of molecules that follow the wave patterns of quantum mechanics instead of the strictly particle nature...

NIST Physicists ‘Flash-freeze’ Crystal of 150 Ions

February 20, 2019

Physicists at the National Institute of Standards and Technology (NIST) have “flash-frozen” a flat crystal of 150 beryllium ions (electrically charged atoms)...

Rulers of light shining on individual buckyballs

JILA Researchers Uncover Quantum Structure of Buckyballs

January 28, 2019

JILA researchers have measured hundreds of individual quantum energy levels in the buckyball, a spherical cage of 60 carbon atoms.

NIST Atomic Clocks Now Keep Time Well Enough to Improve Models of Earth

November 28, 2018

Experimental atomic clocks at the National Institute of Standards and Technology (NIST) have achieved three new performance records, now ticking precisely...

New Device Widens Light Beams by 400 Times, Broadening Possibilities in Science and Technology

November 27, 2018

By using light waves instead of electric current to transmit data, photonic chips—circuits for light—have advanced fundamental research in many areas from...

JILA Researchers See Signs of Interactive Form of Quantum Matter

October 31, 2018

JILA researchers have, for the first time, isolated groups of a few atoms and precisely measured their multi-particle interactions within an atomic clock. The...

Uncrunching the Frequency Spectrum

September 26, 2018

The squeeze is here, and the crunch is coming. Soon. Explosive demand for high-speed wireless communication is placing growing pressure on the limited frequency...

A New Way to Measure Energy in Microscopic Machines

June 8, 2018

What drives cells to live and engines to move? It all comes down to a quantity that scientists call “free energy,” essentially the energy that can be extracted...

Cartoon with man standing on falling blue cube representing Earth, decorated with clumps of clock faces, with yellow sun at right.

NIST Atomic Clock Comparison Confirms Key Assumptions of ‘Einstein’s Elevator’

June 4, 2018

By comparing different types of remote atomic clocks, physicists at the National Institute of Standards and Technology (NIST) have performed the most accurate...

Neutrons by the Numbers

May 21, 2018

After years of research, scientists at the National Institute of Standards and Technology (NIST) have developed and demonstrated a way to count the absolute...

Desktop Cosmology: A Model of the Expanding Universe

April 23, 2018

When the universe was very young – about a trillionth of a trillionth of a trillionth of a second after the Big Bang – it underwent a sudden explosive expansion...

Square silver device with black-lined window connected to a clear tube on the left, a copper fringe down the middle, and a penny on the right

Mini Toolkit for Measurements: New NIST Chip Hints at Quantum Sensors of the Future

April 10, 2018

Researchers at the National Institute of Standards and Technology (NIST) have created a chip on which laser light interacts with a tiny cloud of atoms to serve...

Four images composed of diffuse red, white and blue patterns.

JILA Team Invents New Way to ‘See’ the Quantum World

March 5, 2018

JILA scientists have invented a new imaging technique that produces rapid, precise measurements of quantum behavior in an atomic clock in the form of near...

Man with gray hair standing beside computer with digital clock display

NIST’s Next-Generation Atomic Clocks May Support Official Timekeeping

November 16, 2017

For more than a decade, the National Institute of Standards and Technology (NIST) has been unveiling experimental next-generation atomic clocks. These clocks...

Person holding wallet card showing the values of fundamental constants being used for revising the International System of Units, the modern metric system.

Bringing the World Closer to Revised Measurement System, Scientists Update Four Key Fundamental Constants

October 23, 2017

Paving the way for transforming the world’s measurement system, an international task force has determined updated values for four fundamental constants of...

Amplitude Sensing below the Zero-Point Fluctuations

October 18, 2017

Employing techniques developed for quantum information processing with trapped ions, we demonstrate a sensitive technique for measuring the amplitude of the...

JILA Spinning Method Confirms the Electron Still Seems Round

October 9, 2017

JILA physicists have for the first time used their spinning molecules technique to measure the “roundness” of the electron, confirming the leading results from...

JILA’s 3-D Quantum Gas Atomic Clock Offers New Dimensions in Measurement

October 5, 2017

JILA physicists have created an entirely new design for an atomic clock, in which strontium atoms are packed into a tiny three-dimensional (3-D) cube at 1,000...

Researchers Find New Way to Manipulate Magnetism

September 14, 2017

In a pioneering effort to control, measure and understand magnetism at the atomic level, researchers working at the National Institute of Standards and...

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