RCQM Distinguished Lecture "Building the next generation atomic clock based on quantum material".
Building the next generation atomic clock based on quantum material
JILA, National Institute of Standards and Technology and University of Colorado
Boulder, Colorado 80309-0440, USA
Coherent light-matter interactions have entered a new regime where optical coherence is maintained over many seconds while thousands of atoms are prepared in precisely engineered quantum states. These capabilities have allowed us to achieve a new generation of atomic clocks with accuracy at the 18th digit. The progress of optical lattice clock to this level of accuracy has also benefited greatly from the understanding of atomic interactions. Meanwhile, the unprecedented precision of clock spectroscopy has enabled the exploration of many-body quantum systems including spin interactions under SU(N) symmetry. Our recent work on this combined front of quantum metrology and many-body physics includes the probe of spin-orbital physics in the optical lattice and the investigation of a Fermi degenerate gas of tens of thousands Sr-87 atoms configured as a band-insulator in a three-dimensional magic-wavelength optical lattice. We now demonstrate an atom-light coherent interaction time approaching 10 seconds, and show a clear path for improving the clock performance into the next decimal point.
Jun Ye is a Fellow of JILA, a joint institute of NIST and University of Colorado. He is a member of the National Academy of Sciences, a Fellow of NIST, a Fellow of the American Physical Society, and a Fellow of the Optical Society of America. His research focuses on the frontier of light-matter interactions and includes precision measurement, quantum physics and ultracold matter, optical frequency metrology, and ultrafast science. He has co-authored over 300 scientific papers and has delivered 500 invited talks. Awards and honors include US Presidential Rank (Distinguished) Award, three Gold Medals from the U.S. Commerce Department, Frew Fellowship from the Australian Academy of Science, I. I. Rabi Prize from the American Physical Society, European Frequency and Time Forum Award, Carl Zeiss Research Award, William F. Meggers Award and Adolph Lomb Medal from the Optical Society of America, Arthur S. Flemming Award, Presidential Early Career Award for Scientists and Engineers, Friedrich Wilhem Bessel Award from Alexander von Humboldt Foundation, and Samuel Wesley Stratton Award from NIST. The research group web page is http://jila.colorado.edu/YeLabs/.