International workshop on theory for attosecond quantum dynamics (IWTAQD) 13

Jun 15 - Jul 11, 2015


Direction to UEC: English, Japanese
Narita to UEC: English

back to IWTAQD page





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Participants (Bldg. E-6, Rms. 525, 527)

Oleg I. Tolstikhin	MIPT	Adiabatic Theory	June 15 -Jul 4, 2015
Chiennan Liu	Fu-jen catholic U	He dynamics under FEL	Jul 2 -11, 2015
Vinh Pham Nguyen Thanh	Ho Chi Minh City U of Pedagogy	Adiabatic Theory	Jun 22-Jul 4 , 2015
Akiyoshi Hishikawa	Nagoya U	FEL, Molecular dynamics	Jun 26-27, 2015
Toshiyuki Azuma	RIKEN	Laser-Atom dynamics	Jun 27, 2015
Trinh Hoai Vinh	RIKEN	Attosecond dynamics, Tunneling ionization	Jun 27, 2015
Penju Zhang	RIKEN	Laser-Atom dynamics	Jun 27, 2015
Yueming Zhou	UEC	Trilobite structure	June 15 -Jul 11, 2015
Cheng Huang	UEC	Molecular dynamics	June 15 -Jul 11, 2015
Michio Matsuzawa	UEC		Jun 27, 2015
Shinichi Watanabe	UEC	Cold atoms	June 15 -Jul 11, 2015
Toru Morishita	UEC	Chair	June 15 -Jul 11, 2015
Hsumin Huang	UEC	3-body break up	June 15 -Jul 11, 2015
Masataka Ohmi	UEC	TDSE/Adiabatic theory	June 15 -Jul 11, 2015
Bangman Wan	UEC		June 15 -Jul 11, 2015
Hossain Ahmed	UEC		June 15 -Jul 11, 2015
Tomotake Yamakoshi	UEC	Cold atoms	June 15 -Jul 11, 2015
Shun Ohgoda	UEC	TDSE/Static Field Induced States	June 15 -Jul 11, 2015
Asuka Hara	UEC	Attosec dynamics	June 15 -Jul 11, 2015

Seminar Program (tentative)

June 27  (Sat) 2015　
Place: Bldg. East 6, Rm. 803

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09:00-09:30 FREE DISCUSSION
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09:30-10:15  Oleg I Tolstikhin (MIPT)
"Static-field-induced states"
Abstract:
A combination of an atomic or molecular potential and a static electric field creates a "resonator" for an electron. Such a "resonator" can support metastable electronic states. These states do not exists in the absence of the field and hence are called static-field-induced states (SFIS). In my talk, I will present the theory of SFIS and discuss their manifestation in laser-matter interaction observables.

10:15-11:00 Akiyoshi Hishikawa (Nagoya U)
"Molecular Coulomb explosion and dissociative ionization in asymmetric intense laser fields"
Abstract:
"Molecular Coulomb explosion and dissociative ionization in asymmetric intense laser fields”
Three-dimensional coincidence ion momentum imaging of simple molecules in phase-controlled two-color intense laser fields is presented. The spatially asymmetric fragmentation is observed both in asymmetric (heteronuclear) and symmetric molecules.  The origins of the phase dependence will be discussed.


11:00-11:30 Cheng Huang (UEC)
"Tunneling site of electrons in strong-field-enhanced ionization of molecules"
Abstract: click here

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11:30-14:00 LUNCH DISCUSSION
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14:00-:14:45 Toshiyuki Azuma  (RIKEN)
"Interpreting attoclock measurements of tunneling"

14:45-15:30 Vinh N. T. Pham (HCMC U of Pedagogy)
"Adiabatic theory of ionization for circularly polarized laser. Application to molecule"
Abstract:
Recently, we have established the adiabatic theory for studying the photomomentum distribution of atom using arbitrarily polarization laser field. In this talk, we present our results for extending this theory to molecular system. We use circular polarization laser field to prevent the electron from recollising with its parent ion. Thus we can eliminate the rescattering part and focus only on the direct ionization part in the photoelectron momentum. The method is illustrated by calculation of photoelectron momentum distribution for 1s$\sigma$ and 2pπ⁺ state of H2⁺.

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15:30-16:00 FREE DISCUSSION
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16:00-:16:30 Yueming Zhou (UEC)
"Retrieving the structural information from the photoelectron holography"
Abstract: click here

16:30-17:00 Trinh Hoai Vinh (RIKEN)
"Probing two-electron dynamics of helium in time domain via fluorescence channel"
Abstract:
Time-resolved study of electron correlation in many-electron systems remains challenging both experimentally and theoretically. Recently, our Laser Technology Lab has demonstrated a tabletop light source generating pulses with duration of 500 as and energy as high as 1.3 microjoule [E. J. Takahashi et. al., Nat. Commun. 4, 2691 (2013)]. Such high-intensity, short-pulse light source is expected to enhance our ability to probe electron dynamics in time domain. In this presentation, we introduce our effort in theoretically realizing an attosecond pump-probe scheme applied for two-electron system of helium. In particular, we are looking at channel in which fluorescence signal may contain information on the dynamics evolution of correlated wave packet initiated by absorption of two XUV photons.

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17:00-19:00 FREE DISCUSSION
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July 6  (Mon) 2015　
Place: Bldg. East 6, Rm. 529

14:00-15:00 Chiennan Liu  (Fu-Jen Catholic U)
"Extracting temporal information of the FEL pulses"

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15:00-16:00 FREE DISCUSSION
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Toru Morishita,UEC