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The Department of Commerce is proud to join the Nation in recognizing the Asian American, Native Hawaiian, and Pacific Islander (AANHPI) Heritage Month, also known as Asian American Pacific Islander (AAPI) Heritage Month. Observed annually in May, AANHPI Heritage Month is a time to reflect upon and celebrate the remarkable role of the AANHPI community in our Nation’s history. It also is a time to recognize all the many contributions and achievements within the AAHNPI community that have had a positive impact on our Nation.

The 2021 Julius Springer Award for Applied Physics is awarded to Professor Jun Ye for pioneering research in fundamental quantum interactions of elemental matter and light, exploiting precision optical spectroscopy and laser-lattice atomic traps.

In a significant advance toward the future redefinition of the international unit of time, the second, a research team led by the National Institute of Standards and Technology (NIST) has compared three of the world’s leading atomic clocks with record accuracy over both air and optical fiber links.

Entangled particles have always fascinated physicists, as measuring one entangled particle can result in a change in another entangled particle, famously dismissed as “spooky action at a distance” by Einstein. By now, physicists understand this strange effect and how to make use of it, for example to increase the sensitivity of measurements. However, entangled states are very fragile, as they can be easily disrupted by decoherence. Researchers have already created entangled states in atoms, photons, electrons and ions, but only recently have studies begun to explore entanglement in gases of polar molecules.

For the first time, researchers can turn on an electric field to manipulate molecular interactions, get them to cool down further, and start to explore collective physics where all molecules are coupled to each other.

The Micius Quantum Prize recognizes significant scientific advances ranging from the early conceptual contributions to the recent experimental breakthroughs. The Micius Quantum Prize 2020 focuses on the broadly defined field of quantum metrology, recognizing scientific advances ranging from early conceptual contributions to experimental breakthroughs. The laureates this year are Carlton Caves, Hidetoshi Katori, and Jun Ye.

Building on their newfound ability to induce molecules in ultracold gases to interact with each other over long distances, JILA researchers have used an electric “knob” to influence molecular collisions and dramatically raise or lower chemical reaction rates.

Older atomic clocks operating at microwave frequencies have hunted for dark matter before, but this is the first time a newer clock, operating at higher optical frequencies, and an ultra-stable oscillator to ensure steady light waves have been harnessed to set more precise bounds on the search.

JILA fellow Jun Ye has been named Highly Cited Researcher for 2020 by Clarivate Analytics. Ye has been awarded the Highly Cited Researcher in the field of physics every year since 2014.

SU(N) fermion systems are multi-component, spin-symmetrical collections of atoms—which are unique among degenerate gases. The Ye Group found that SU(N) fermion systems display special properties that allow them to be quickly cooled and prepared for use in quantum-matter based atomic clocks.