OHMORI GROUP

The wave nature of matter is at the heart of the quantum world. Quantum mechanics was founded more than 70 years ago, and our modern civilized societies are deeply indebted to inventions made possible by quantum mechanics such as computers and CD players. The quantum world is, however, not yet fully understood, and considerable potential for its application still exists. We are trying to control completely the wave nature of atoms and molecules with light to better understand the quantum world. See our Youtube video (website).

  We have been awarded a five-year JSPS grant: Grant-in-Aid for Specially Promoted Reaserch project entitled "Addressing Quantum Many-Body Dynamics by Ultrafast Coherent Control with Attosecond Precision" (FY2016〜2020) (website). "Specially Promoted Research" is the most prestigious scientific grant in Japan. We are recruiting a postdoctoral fellow who joins this project. Email our group leader Kenji Ohmori (ohmori[AT]ims.ac.jp) for further details.
2017. 11. 21 Prof. Ohmori was invited to give a talk at University of Oxford (website) on "Ultrafast many-body electron dynamics in a strongly-correlated ultracold Rydberg gas" (abstract of the talk) (20 November 2017, Oxford, UK).
2017. 10. 24 Prof. Ohmori has been awarded "Hiroshi Takuma Memorial Prize" by Matsuo Foundation for his "development of coherent control with attosecond precision and its applications". Hiroshi Takuma Memorial Prize is awarded annually to one recipient who has made outstanding achievements in the fields of Atomic, Molecular, and Optical Physics and Quantum Electronics.
2017. 10. 11 Prof. Ohmori was invited to a meeting with the Minister Yoshimasa Hayashi of the Ministry of Education, Culture, Sports, Science and Technology (MEXT), and explained to the Minister about "The International Trends of Quantum Science and Technology and its perspective in Japan" (1 October 2017, Kyoto, Japan).
2017. 10. 6 Prof. Ohmori was invited to give a talk at Max Planck Institute for the Science of Light (website) on "Ultrafast many-body electron dynamics in a strongly-correlated ultracold Rydberg gas" (abstract of the talk) (5 October 2017, Erlangen, Germany).
2017. 9. 13 Prof. Ohmori was invited to give a talk at MIT-Harvard Center for Ultracold Atoms (CUA ; website) on "Ultrafast many-body electron dynamics in a strongly-correlated ultracold Rydberg gas" (abstract of the talk) (12 September 2017, Cambridge, USA).
2017. 8. 22 Prof. Ohmori has been elected Vice Chairman of "2019 Gordon Research Conference on Quantum Control of Light and Matter (website) " (Chairman of the 2021 conference).
2017. 8. 9 Prof. Ohmori was invited to give a talk at Gordon Research Conference on "Quantum Control of Light and Matter" (6-11 August 2017, Mount Holyoke College, South Hadley, USA) (website)
2017. 7. 13 Prof. Ohmori was invited to give a lecture at Central Technical Research Laboratory, JXTG Nippon Oil & Energy Corporation on "Future society created by quantum science and technology" (12 July 2017, Yokohama, Japan)(website)
2017. 5. 31 Prof. Ohmori was invited to give a talk at Institut d'Optique (website) on "Ultrafast many-body electron dynamics in a strongly-correlated ultracold Rydberg gas" (26 May 2017, Palaiseau, France)
2017. 5. 31 Prof. Ohmori was invited to give a talk at Les Houches / Telluride Workshop on "Quantum Dynamics and Spectroscopy of Functional Molecular Materials and Biological Photosystems" on "Ultrafast many-body electron dynamics in a strongly-correlated ultracold Rydberg gas" (21-26 May 2017, Les Houches, France) (website)
2017. 5. 9 Prof. Ohmori was invited to give a talk at IQOQI (website), Universität Innsbruck on "Ultrafast many-body electron dynamics in a strongly-correlated ultracold Rydberg gas" (abstract of the talk) (5 May 2017, Innsbruck, Austria)
2016. 12. 28 We have succeeded in generating a unit-filling Mott insulator of Rb atoms. Check the details here.

  

2016. 12. 16 Our recent paper "Direct observation of ultrafast many-body electron dynamics in an ultracold Rydberg gas" (Nature Communications 7, 13449 (2016).) has been highlighted by many media including Science and IOP Physics World.
Highlighted by Science (website)
Highlighted by IOP Physics World (website)
News coverage summary by Altmeric (website)
News by Phys.Org (website)
News by TheRegister (website)
News by FUTURA SCIENCES (website)
2016. 11. 16 Our two new papers have been published in Nature Communications and Phys. Rev. A.

"Direct observation of ultrafast many-body electron dynamics in an ultracold Rydberg gas"
Nobuyuki Takei, Christian Sommer, Claudiu Genes, Guido Pupillo, Haruka Goto, Kuniaki Koyasu, Hisashi Chiba, Matthias Weidemüller, and Kenji Ohmori
Nature Communications 7, 13449 (2016).
Highlighted by Science (website)
Highlighted by IOP Physics World (website)
News coverage summary by Altmeric (website)

"Time-domain Ramsey interferometry with interacting Rydberg atoms"
Christian Sommer, Guido Pupillo, Nobuyuki Takei, Shuntaro Takeda, Akira Tanaka, Kenji Ohmori, and Claudiu Genes
Phys. Rev. A. 94, 053607 (2016).
2016. 10. 7-12 Prof. Ana Maria Rey from JILA, NIST and University of Colorado stayed in our group and gave a talk at the 892nd IMS colloquium (website).
2016. 9. 12-18 Dr. Alexander Glaetzle from University of Innsbruck stayed in our group and we had the team meeting on the JSPS project with him.

    

2016. 7. 25 We succeeded in observation of a quantum phase transition from superfluid to Mott insulator in a 3D optical lattice. Check the details here.
2016. 4. 15 Prof. Ohmori was invited to give a talk at "International Symposium on Advanced Photonics" (2016/4/12-14, Hamamatsu, Japan) (website)
2016. 3. 7 Prof. Ohmori has been invited to give a talk at "OIST Mini Symposium: Rydberg Atoms for Quantum Technologies" (2016/3/3-5, Okinawa, Japan) (website)
2016. 1. 20 Prof. Ohmori was invited to give a lecture at Central Research Laboratory, Hitachi Ltd. on "Exploring 100 years' mystery in quantum mechanics" (2016/1/19, Hatoyama, Saitama, Japan)
2015. 12. 17 Prof. Ohmori was invited to give a talk at "Perspectives in Nano Information Processing: an international conference and workshop" (2015/12/14-16, Cambridge, UK) (website)
2015. 9. 24 Prof. Ohmori was invited to give a talk at "The 12th US-Japan Seminar on many body quantum systems" (2015/9/20-24, Madison, Wisconsin, USA) (website)
2015. 9. 14 Prof. Ohmori has been appointed to Vice Chair, Committee for Quantum Science and Technology Policy, Ministry of Education, Culture, Sports, Science and Technology (MEXT) in Japan
2015. 7. 17 Prof. Ohmori was invited to give a talk at " The Hamburg Conference of Femtochemistry" (2015/7/12-17, Hamburg, Germany)(website)
2015. 6. 19 Prof. Ohmori was invited to give a talk at "Gordon Research Conferences; Atomic Physics -From Ultracold to Strongly Interacting Quantum Systems-" (2015/6/14-19, Salve Regina University, Newport, RI, USA) (website)
2015. 6. 15 Dr. Sommer, Christian was invited to give a talk at "Quantum Dynamics and Spectroscopy in Condensed-Phase Materials and Bio-Systems" (2015/6/8-12, Telluride Elementary School, Telluride, CO, USA) (website)
2015. 6. 8 We succeeded in generating a Bose-Einstein condensate of Rb atoms by all-optical means. Check the details here.
2014.12. 25 Prof. Ohmori has been invited to the International Advisory Board of Journal of Physics B: Atomic, Molecular and Optical Physics. (website)
2014.12. 25 Prof. Ohmori was invited to give a talk at "Quantum Dynamics and Spectroscopy in Condensed-Phase Materials and Bio-Systems" (2015/6/8-12, Telluride, CO, USA) (website)
2014.12. 18 Prof. Ohmori was invited to give a talk at "Coherence and Control in the Quantum World: Current and Future Trends" (2014/12/15-18, Weizmann Institute of Science, Rehovot, Israel) (website)
2014. 9. 29 Prof. Ohmori was invited to give a talk at "Fujihara Seminar: Real-time Dynamics of Physical Phenomena and Manipulation by External Fields" (2014/9/23-27, Tomakomai, Hokkaido, Japan). (website)
2014. 9. 18 Prof. Ohmori was invited to give a talk at "Ultracold Rydberg Physics Workshop" (2014/9/10-12, Granada, Spain) (website)
2014. 8. 18 Prof. Ohmori was invited to give a talk at "Coherence and Control in the Quantum World: the Legacy of Moshe Shapiro" (2014/8/13-15, University of British Columbia, Canada)
2014. 8. 8 Our new paper has been published in Foundations of Physics.
"Optically Engineered Quantum States in Ultrafast and Ultracold Systems,"
Volume 44, Issue 8 (2014), Page 813-818
Kenji Ohmori
Found. Phys. 44, 813-818 (2014).

2014. 7. 4 Prof. Ohmori delivered a Visiting Professor Lecture at ISIS, University of Strasbourg, France.(2014/7/3)(website)
2014. 6. 24 Prof. Ohmori has been appointed to Visiting Professor at ISIS, University of Strasbourg, France.(website)
2014. 4. 1 Dr. Akira Tanaka and Dr. Shuntaro Takeda have joined us as Research Assistant Professors.
2014. 4. 1 A commentary that Prof. Ohmori was asked to write for APS has been published.
"Quantum Superrotor,"
Kenji Ohmori
Physics 7, 29 (2014).
2014. 4. 1 Prof. Ohmori has been invited to give a talk at "Coherence and Control in the Quantum World: Current and Future Trends" (2014/12/15-18, Weizmann Institute of Science, Israel)
2014. 2. 14 Our new paper has been published in Physical Chemistry Chemical Physics.
"Theoretical/numerical study on strong-laser-induced interference in the B state of I2,"
Y. Ohtsuki, H. Goto, H. Katsuki, and K. Ohmori
Phys. Chem. Chem. Phys. 16, 5689-5697 (2014).
2013. 11. 18 Our new paper has been published in Nature Communications.
"All-Optical Control and Visualization of Ultrafast Two-Dimensional Atomic Motions in a Single Crystal of Bismuth,"
H. Katsuki, J. C. Delagnes, K. Hosaka, K. Ishikawa, H. Chiba, E. S. Zijlstra, M. E. Garcia, H. Takahashi, K. Watanabe, M. Kitajima, Y. Matsumoto, K. G. Nakamura, and K. Ohmori
Nature Communications 4, 2801-1 - 2801-7 (2013).
IMS Press Release (website)
JST Press Release (website)
2014. 1. 21 Prof. Ohmori was invited to give a talk at Networks of Ultra-Cold Rydberg Atoms (2014/1/9-10, Keble College in Oxford, UK).(website)
2014. 1. 21 Prof. Ohmori was invited to give a talk at prestigious Physikalisches Kolloquium of University of Heidelberg (2014/1/17, Heidelberg, Germany). (website)
2014. 1. 21 Prof. Ohmori was invited to give a talk at 11th Germany-Japan Science Colloquium (2014/1/16-17, Heidelberg, Germany).
2013. 11. 7 A Peter Wall Colloquium Abroad and The 73rd Okazaki Conference on "Coherent and Incoherent Wave Packet Dynamics" was held. (2013/10/30-11/2, Okazaki Conference Center, Aichi, Japan). (website)
2013. 10. 10 Prof. Ohmori was invited to give a talk at Frontiers in Optics 2013/Laser Science XXIX (2013/10/6-10, Orlando, Florida, USA). (website)
2013. 8. 13 Prof. Ohmori was invited to give a talk at Conference on Quantum Information & Quantum Control (CQIQC-V) (2013/8/12-16, Toronto, Canada). (website)
2013. 7. 29 Prof. Ohmori was invited to give a talk at Gordon Research Conferences; Quantum Control of Light & Matter (2013/7/28-8/2, Mount Holyoke College, MA, USA). (website)
2013. 7. 10 Our new paper was published in Phys. Rev. B.
"Optically engineered quantum interference of delocalized wavefunctions in a bulk solid : The example of solid para-hydrogen,"
Hiroyuki Katsuki, Yosuke Kayanuma, and Kenji Ohmori
Phys. Rev. B. 88, 014507-1- 014507-6 (2013).
2013. 7. 9 Prof. Ohmori was invited to give a talk at Quantum Dynamics and Spectroscopy in Condensed-Phase Materials and Bio-Systems (2013/7/8-12, Telluride Intermediate School, CO, USA). (website)
2013. 7. 3 Assist. Prof. Takei was invited to give a talk at Japan-Korea Symposium for Molecular Science: Hierarchical Structure from Quantum to Functions of Biological Systems (2013/7/3-5, Kobe, Japan).
2013. 6. 30 Prof. Ohmori was invited to give a talk at CLEO-PR&OECC/PS 2013 workshop (2013/6/30, Kyoto, Japan). (website)
2013. 6. 13 Our new paper was published in Molecular Physics.
"Wavepacket interferometry for nuclear densities and flux densities,"
Timm Bredtmann, Hiroyuki Katsuki, Jörn Manz, Kenji Ohmori, and Christian Stemmle
Molecular Physics, 111, 1691-1696 (2013). (invited paper)
2013. 5. 23 Prof. Ohmori was invited to give a talk at Strasbourg Physique Seminaires (Université Strasbourg, France).
2013. 5. 20 Prof. Ohmori was invited to give a talk at Atomic and Laser Physics seminar (Department of Physics, University of Oxford, UK).
2013. 5. 13-27 Prof. Ohmori stayed in Prof. Matthias Weidemüller group at Universität Heidelberg, Germany as a visiting professor.
2013. 4. 11 Prof. Ohmori was invited to give a talk at The 11th US-Japan Joint Seminar on Quantum Electronics and Laser Spectroscopy "Ultimate Quantum Systems of Light and Matter-Control and Applications" (Nara Prefectural New Public Hall, Nara, Japan). (website)
2013. 2. 13 Prof. Ohmori was invited to give a talk at 3rd IMS-ENSCP Joint Seminar (2013/2/12-13, Okazaki). (Assist. Prof. Nobuyuki Takei gave a talk as a substitute for Prof. Ohmori.)
2013. 2. 5 Prof. Ohmori was invited to give a talk at KITP Program “Fundamental Science and Applications of Ultra-cold Polar Molecules” (KITP UC Santa Barbara, Santa Barbara, USA).
2013. 1. 9 Assist. Prof. Takei was invited to give a talk at The 72nd Okazaki Conference on “Ultimate Control of Coherence” (Okazaki Conference Center, Okazaki, Japan).
   
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