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Ultrafast many-body electron dynamics in a strongly correlated ultracold Rydberg gas

March 8, 2018 - 11:00am
Speaker: 
Kenji Ohmori
Institution: 
Institute for Molecular Science, National Institutes of Natural Sciences

Abstract: Many-body correlations govern a variety of important quantum phenomena such as theemergence of superconductivity and magnetism in condensed matter. Understanding quantummany-body systems is thus one of the central goals of modern sciences. Here we demonstrate a new pathway towards this goal by generating a strongly correlated ultracold Rydberg gas with a broadband picosecond laser pulse. We have applied our ultrafast and ultrahigh-precision coherent control [1-8] to this strongly correlated Rydberg gas, and have successfully observed and controlled its many-body electron dynamics on the attosecond timescale [9]. Our approach will offer a versatile platform to observe and manipulate nonequilibrium dynamics of strongly correlated quantum many-body systems on the ultrafast timescale.

References
[1] K. Ohmori et. al., Phys. Rev. Lett. 91, 243003 (2003).
[2] H. Katsuki and K. Ohmori et. al., Science 311, 1589 (2006).
[3] K. Ohmori et. al., Phys. Rev. Lett. 96, 093002 (2006).
[4] H. Katsuki and K. Ohmori et. al., Phys. Rev. Lett. 102, 103602 (2009).
[5] K. Hosaka and K. Ohmori et al., Phys. Rev. Lett. 104, 180501 (2010)
   (Highlighted by Nature 465, 138 (2010); Physics 3, 38 (2010)).
[6] H. Goto and K. Ohmori et al., Nature Physics 7, 383 (2011)
   (Highlighted by Nature Physics 7, 373 (2011); Nature Photonics 5, 382 (2011)).
[7] H. Katsuki and K. Ohmori et al., Nature Commun. 4, 2801 (2013).
[8] H. Katsuki and K. Ohmori et al., Phys. Rev. B 92, 094511 (2015).
[9] N. Takei, C. Sommer, C. Genes, G. Pupillo, H. Goto, K. Koyasu, H.Chiba,M. Weidemüller, and K. Ohmori, Nature Commun. 7, 13449 (2016)

  (Highlighted by Science 354, 1388 (2016); IOP PhyscisWorld.com (2016)).

Hosts: Chris Monroe and Alexey Gorshkov

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College Park, MD 20742