Akio Kawasaki
ENG JPN KOR

I am a William M. and Jane D. Fairbank Postdoctoral Fellow belonging to the W. W. Hansen Experimental Physics Laboratory and the Department of Physics at Stanford University. I am working on a measurement of short distance gravity performed by an optically levitated sphere and a nano fabricated cantilever in Prof. Giorgio Gratta's group.

I received Ph.D. degree at Department of Physics, Massachusetts Institute of Technology, where I worked on a spin squeezed ytterbium atomic clock at Prof. Vladan Vuletic's group in Center for Ultracold Atoms. My thesis is located here.

My research interest lies in exploring fundamental physics with AMO techniques, such as spectroscopy of atoms involving anti-particles, gravitation wave detection by atomic interferometry, and measurement of g-2 for particles, parity non-conservation in nuclei and electron EDM. If I use a term that is generally used, precision measurement describes my interest the best. Constraints on Yukawa potential term as a deviation from the Newtonian gravity can put limits on axions and other kind of force mediating bosons. Atomic clock is expected to test the time dependence of fundamental constants like fine structure constant. Also, I have some theoretical contribution to hydrogen trapping that can be applied to test the matter-antimatter symmetry.

Contact Information
 382 Via Pueblo Mall, Rm. 136
 Stanford University
 Stanford, California 94305
 USA
 E-mail address: akiok@stanford.edu
 Tel: +1-650-725-2342

Curriculum Vitae

Publications
 Three dimensional force-field microscopy with optically levitated microspheres
      Charles P. Blakemore, Alexander D. Rider, Sandip Roy, Qidong Wang, Akio Kawasaki, Giorgio Gratta
     arXiv:1810.05779 (2018)
 Search for Gram-scale Dark Matter with Precision Displacement Sensors
      Akio Kawasaki
     arXiv:1809.00968 (2018)
 Impact of Non-Unitary Spin Squeezing on Atomic Clock Performance
      Boris Braverman, Akio Kawasaki, Vladan Vuletić
     New J. Phys. 20, 103019 (2018)
 Magic wavelength for the hydrogen 1S−2S transition: Contribution of the continuum and the reduced-mass correction
     C. M. Adhikari, A. Kawasaki, and U. D. Jentschura
     Phys. Rev. A 94, 032510 (2016)
 Fast Compact Laser Shutter Using a Direct Current Motor and 3D Printing
     Grace H. Zhang, Boris Braverman, Akio Kawasaki, Vladan Vuletić
     Rev. Sci. Instrum. 86, 126105 (2015)
 Magic Wavelength for the Hydrogen 1S-2S Transition
     Akio Kawasaki
     Phys. Rev. A 92, 042507 (2015)
 Change of Crystalline Structure during the Phase Transition of the Palladium-Hydrogen System
     Akio Kawasaki, Satoshi Itoh, Kunihiro Shima, Kenichi Kato, Haruhiko Ohashi, Tetsuya Ishikawa, Toshimitsu Yamazaki
     Phys. Chem. Chem. Phys., 17, 24783-24790 (2015)
 Two-Color Magneto-Optical Trap with Small Magnetic Field for Ytterbium
     Akio Kawasaki, Boris Braverman, QinQin Yu, Vladan Vuletić
     J. Phys. B: At. Mol. Opt. Phys. 48 155302 (2015)
     Selected as the Highlights of 2015 (listed in Quantum matter section)
 Passive intrinsic-linewidth narrowing of ultraviolet extended-cavity diode laser by weak optical feedback
     Polnop Samutpraphoot, Sophie Weber, Qian Lin, Dorian Gangloff, Alexei Bylinskii, Boris Braverman, Akio Kawasaki, Christoph Raab, Wilhelm Kaenders, Vladan Vuletić
     Opt. Exp. 22, 11592-11599 (2014)
 Deformation of Palladium Plates by a Small Stress during Hydrogen Absorption and Desorption
     Akio Kawasaki, Satoshi Itoh, Kunihiro Shima, Toshimitsu Yamazaki
     Mat. Sci. Eng. A 551, 231-235 (2012)

Presentations at Conferences
  July 26, 2018 E. Pedrozo, B. Braverman, Akio Kawasaki, S. Colombo, C. Shu, Z. Li, V. Vuletić: A geometrically asymmetric optical cavity for a spin squeezed 171Yb optical atomic clock, The 26th International Conference on Atomic Physics (Poster Session)
  July 24, 2018 S. Colombo, B. Braverman, Akio Kawasaki, E. Pedrozo, C. Shu, Z. Li, V. Vuletić: Near-Unitary Spin-Squeezing for Optical Clocks, The 26th International Conference on Atomic Physics (Poster Session)
  July 7, 2018 Akio Kawasaki, Alex Rider, Charles Blakemore, Giorgio Gratta: Limits on non-Newtonian gravity at 10 μm scale by precision force measurements with optically-levitated microspheres, XXXIX International Conference on High Energy Physics
  Jun 1, 2018 Boris Braverman, Akio Kawasaki, Edwin Pedrozo, Chi Shu, Simone Colombo, Zeyang Li, Vladan Vuletić: Toward Unitary Spin Squeezing for Atomic Clocks, 49th Annual Meeting of the APS DAMOP
  Jun 14, 2017 Boris Braverman, Akio Kawasaki, Edwin Pedrozo, Yanhong Xiao, Vladan Vuletić: Spin Squeezed 171Yb Atomic Clock beyond the Standard Quantum Limit, Gordon Research Conference on Atomic Physics (Poster Session)
  Jul 28, 2016 Akio Kawasaki, Boris Braverman, Leonardo Salvi, Bojan Zlatković, Vladan Vuletić: Spin Squeezed 171Yb Atomic Clock beyond the Standard Quantum Limit, 25th International Conference on Atomic Physics (Poster Session)
  May 26, 2016 Boris Braverman, Akio Kawasaki, Vladan Vuletić: Generating and probing entangled states for optical atomic clocks, 47th Annual Meeting of the APS DAMOP
  May 24, 2016 Akio Kawasaki: Magic Wavelength for the Hydrogen 1S-2S Transition, 47th Annual Meeting of the APS DAMOP
  Jun 15, 2015 Akio Kawasaki, Boris Braverman, David Levonian, André Heinz, Daisuke Akamatsu, Vladan Vuletić: Spin Squeezed 171Yb Atomic Clock beyond the Standard Quantum Limit, Gordon Research Conference on Atomic Physics (Poster Session)
  Jun 11, 2015 Boris Braverman, Akio Kawasaki, Vladan Vuletić: Progress toward a spin squeezed optical atomic clock beyond the standard quantum limit, 46th Annual Meeting of the APS DAMOP
  Aug 5, 2014 Boris Braverman, Akio Kawasaki, Vladan Vuletić: Spin Squeezed 171Yb Atomic Clock beyond the Standard Quantum Limit, The 24th International Conference on Atomic Physics (Poster Session)
  Jun 24, 2013 Akio Kawasaki, Boris Braverman, Özge Özel, Tailin Wu, Vladan Vuletić: Spin Squeezed 171Yb Atomic Clock beyond the Standard Quantum Limit, Gordon Research Conference on Atomic Physics (Poster Session)
  Apr 10, 2013 Akio Kawasaki, Boris Braverman, Özge Özel, Tailin Wu, Vladan Vuletić: Spin Squeezed 171Yb Atomic Clock beyond the Standard Quantum Limit, The 11th US-Japan Joint Seminar on Quantum Electronics and Laser Spectroscopy (Poster Session)

Invited Talks
  Dec 19, 2017, Towards Spin Squeezed 171Yb Atomic Clock beyond the Standard Quantum Limit, AIST
  Jan 25, 2017, Spin Squeezed 171Yb Atomic Clock beyond the Standard Quantum Limit, HEPL Seminar, Stanford University
  Jan 9, 2017, Spin Squeezed 171Yb Atomic Clock beyond the Standard Quantum Limit, TRIUMF
  Aug 1, 2016, Progress towards a Spin Squeezed Atomic Clock, Korea Research Institute of Standards and Science

Other Talks
  Dec 20, 2017, Towards Spin Squeezed 171Yb Atomic Clock beyond the Standard Quantum Limit, UT-PSC Seminar, the University of Tokyo
  Nov 1, 2017, Towards Spin Squeezed 171Yb Atomic Clock beyond the Standard Quantum Limit, HEPL Seminar, Stanford University
  Jun 25, 2015, Progress in the Spin Squeezed Atomic Clock Experiment, Seminar at Katori group, RIKEN
  Apr 8, 2013, Spin Squeezed 171Yb Atomic Clock beyond the Standard Quantum Limit, Seminar at Hayano Group, the University of Tokyo

Outreach Talks
  Dec 5, 2015 중성미자 진동(Neutrino oscillation; in Korean), Todam
  Nov 2, 2013 방사능이란 무엇인가?(What is radioactivity?; in Korean), Todam
  Mar 23, 2013 세계 최고 정밀도의 시계를 만드는 법(How to Make the World's Most Precise Clock; the lecture was in Korean), Todam
  Sep 22, 2012 時間を測る(Measuring Time; the lecture was in Japanese), Boston Japanese Researchers Forum

Other Useful Materials
 Summary of Korean Grammar

 Notes on Basic Knowledge of Radioactivity (in Japanese)

Last update: October 16, 2018