Thursday, December 12, 2013 — 4:00 PM EST

Professor Jun Ye
JILA, National Institute of Standards and Technology and University of Colorado

The best atomic clock and many-body quantum physics

Improvement of spectroscopy resolution has been a key drive behind many scientific and technological breakthroughs over the past century, including the invention of laser and the realization of ultracold matter.  State-of-the-art lasers now maintain optical phase coherence for 10 s and beyond. This unprecedented spectral resolving power has been established across the entire visible spectrum. This new capability in control of light has enabled us to create and probe novel quantum matters via manipulation of dilute atomic and molecular gases at ultralow temperatures. For the first time, we control the quantum states of about 1000 atoms so precisely that we achieve a more accurate and more precise atomic clock than any existing atomic clocks. With the clock accuracy and stability both reaching the 10-18 level, we have realized a single atomic clock with the best performance in both key ingredients necessary for a primary standard. We now stand ready to integrate many-body quantum state engineering into the frontiers of quantum metrology, creating exciting opportunities to advance precision beyond the standard quantum limit. Such advanced clocks will also allow us to test the fundamental laws of nature and find applications among a wide range of technological frontiers.

Location 
PHY - Physics
235
200 University Avenue West

Waterloo, ON N2L 3G1
Canada

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