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Physical Measurement Laboratory

Time and Frequency Division

News and Updates

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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

NIST’s Electro-Optic Laser Pulses 100 Times Faster Than Usual Ultrafast Light

September 27, 2018

Physicists at the National Institute of Standards and Technology (NIST) have used common electronics to build a laser that pulses 100 times more often than

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

Laboratory with computer screens mounted on the wall, and a table with instruments

NIST Team Shows Tiny Frequency Combs Are Reliable Measurement Tools

April 25, 2018

In an advance that could shrink many measurement technologies, scientists at the National Institute of Standards and Technology (NIST) and partners have

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

Man in striped shirt wearing laser safety glasses working with laser table in laboratory.

‘Quantum Radio’ May Aid Communications and Mapping Indoors, Underground and Underwater

January 2, 2018

Researchers at the National Institute of Standards and Technology (NIST) have demonstrated that quantum physics might enable communications and mapping in

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

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

PML Technology Transfer in the News

October 12, 2017

The Denver Post recently ran a front-page story about drones (unmanned aerial vehicles) and their many useful, emerging applications. According to the article,

Nobel Laureate Wineland to Leave NIST, Accepts Position at University of Oregon

August 1, 2017

Nobel laureate David Wineland announced today that he plans to leave the National Institute of Standards and Technology (NIST) this fall and has accepted a

Illustration of laser cooling motion of atomic ion

NIST Physicists Find a Way to Control Charged Molecules – with Quantum Logic

May 10, 2017

BOULDER, Colo.—National Institute of Standards and Technology (NIST) physicists have solved the seemingly intractable puzzle of how to control the quantum

NIST Physicists Show Ion Pairs Perform Enhanced 'Spooky Action'

March 28, 2017

Adding to strong recent demonstrations that particles of light perform what Einstein called “spooky action at a distance,” in which two separated objects can

1st North American Conference on Trapped Ions

March 20, 2017

The Ion Storage group at NIST Boulder will be holding a new Ion Trap Conference at our laboratory. The conference will be similar in scope and aims to the

NIST Debuts Dual Atomic Clock — and a New Stability Record

November 28, 2016

What could be better than a world-leading atomic clock? Two clocks in one.Physicists at the National Institute of Standards and Technology (NIST) have combined

NIST and Navy Tests Suggest Telecom Networks Could Back Up GPS Time Signals

September 8, 2016

Precision time signals sent through the Global Positioning System (GPS) synchronize cellphone calls, time-stamp financial transactions, and support safe travel

NIST's compact gyroscope measures rotation by analyzing patterns of interfering matter waves in an expanding cloud of atoms transitioning between two energy states.

NIST's Compact Gyroscope May Turn Heads

August 23, 2016

Shrink rays may exist only in science fiction, but similar effects are at work in the real world at the National Institute of Standards and Technology (NIST)

Detecting Brain Waves with Atomic Vapor

July 26, 2016

It's really hard to hear what the brain is saying. Neural impulses -- currents of ions moving through channels between the brain's 100 billion neurons at a

NIST's Super Quantum Simulator 'Entangles' Hundreds of Ions

June 9, 2016

Physicists at the National Institute of Standards and Technology (NIST) have "entangled" or linked together the properties of up to 219 beryllium ions (charged

NIST's Internet Time Service Serves the World

March 8, 2016

The Internet Time Service operated by the National Institute of Standards and Technology (NIST) serves much of the Earth, with customers from around the globe

NIST Adds to Quantum Computing Toolkit with Mixed-Atom Logic Operations

December 16, 2015

BOULDER, Colo.–Physicists at the National Institute of Standards and Technology (NIST) have added to their collection of ingredients for future quantum

Today, Pause for a Second

June 30, 2015

For the great majority of human history, the earth's rotation—the apparent motion of the sun and stars across the sky—kept time far more precisely than any

40th Time and Frequency Seminar Serves Industry, Government, Academe

June 23, 2015

About 40 participants from industry, US government agencies and academia participated in the 40th Annual Time and Frequency Metrology Seminar at NIST Boulder

Lack of Effective Timing Signals Could Hamper 'Internet of Things' Development

March 19, 2015

Our fast-approaching future of driverless cars and "smart" electrical grids will depend on billions of linked devices making decisions and communicating with

Open-Source Software for Quantum Information

January 23, 2015

NIST has partnered with the private sector to develop the next-generation open-source control software for quantum information systems. NIST is a world leader

NIST Enables Precision Time-stamping of Financial Transactions

December 10, 2014

NASDAQ, a leading stock exchange for technology markets, has announced the launch of a precision time-stamping service for tens of billions of dollars of

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