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Spatiotemporal coherent control with picometer and attosecond precision; From cold molecules to bulk solids

LCLS-PULSE Seminars
by LCLS Announcement
LCLS-PULSE seminar "Spatiotemporal coherent control with picometer and attosecond precision; From cold molecules to bulk solids", Kenji Ohmori, January 11, 2010, 4:00-5:00 PM, Bldg 137, Room 322.

Coherent control is based on manipulation of quantum phases of wave functions. It is a basic scheme of controlling a variety of quantum systems from simple atoms to nanostructures with possible applications to novel quantum technologies such as bond-selective chemistry and quantum computation. We have developed high-precision wave-packet interferometry by stabilizing the relative quantum phase of two molecular wave packets on the attosecond time scale [1-6]. We have also succeeded in tailoring and visualizing spatiotemporal images of such wave-packet interference on the picometer and femtosecond scales as shown in Fig. 1 [1,7]. Our high-precision spatiotemporal coherent-control has been applied to the test of decoherence and molecule-based information processing [1-6, 8]. Our latest further efforts toward the coherent control of cold molecules and bulk solids will be also presented.



Fig. 1. Actively tailored spatiotemporal images of quantum interference on the picometer and femtosecond scales. The relative phase of two vibrational wave-packets counterpropagating in the iodine molecule has been tuned to (a) 0, (b) 90, (c) 180, and (d) 270 degrees, respectively

References

[1] H. Katsuki, H. Chiba, B. Girard, C. Meier, and K. Ohmori, Phys. Rev. Lett. 102, 163602 (2009).
[2] K. Ohmori, Annu. Rev. Phys. Chem. 60, 487-511 (2009).
[3] K. Ohmori, Proc. Jpn. Acad. Ser. B 84, 167-175 (2008).
[4] H. Katsuki, K. Hosaka, H. Chiba and K. Ohmori, Phys. Rev. A 76, 013403 (2007).
[5] K. Ohmori, H. Katsuki, H. Chiba et al., Phys. Rev. Lett. 96, 093002 (2006).
[6] K. Ohmori, Y. Sato, E.E. Nikitin, and S.A. Rice, Phys. Rev. Lett. 91, 243003 (2003).
[7] H. Katsuki, H. Chiba, B. Girard, C. Meier, and K. Ohmori, Science 311, 1589-1592 (2006).
[8] Y. Teranishi, Y. Ohtsuki, K. Hosaka, H. Chiba, H. Katsuki, and K. Ohmori, J. Chem. Phys. 124, 114110 (2006).

For more information, contact Yiping or Haidan LCLS-PULSE seminar organizers.

Yiping Feng
LCLS, Photon Division, X-ray Science Department SLAC National Accelerator Laboratory
2575 Sand Hill Road, Building 280A/Room 288 Menlo Park, CA 94025

(650) 926-2890 - Office
(408) 888-9827 - Cell
(650) 926-3615 - Fax
Questions? Comments? You can contact the author at communications@slac.stanford.edu.