AI Maleki’s research includes the development of atomic clocks based on ion traps and laser cooled trapped atoms; development of sensors based on atom wave interferometers; study and development of ultra-stable photonic oscillators, the opto-electronic oscillator (OEO), and photonic signal distribution systems; study and development of whispering gallery mode microresonators and their applications in quantum optics and photonic systems; and tests of fundamental physics with atomic clocks.