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- Toshiro Nagai, Nobutake Matsuo, +7 authors Norio Niikawa
- American journal of medical genetics
- 2000

We constructed the standard growth (length/height and weight) curves for Japanese individuals with Prader-Willi syndrome (PWS). Crude height and weight data were collected from 153 males and 99 females with the syndrome, and the collected data were arranged by a mathematical method to construct the curves. Height growth patterns were quite different between… (More)

- Martijn Wubs, Keiji Saito, Sigmund Kohler, Peter Hänggi, Yosuke Kayanuma
- Physical review letters
- 2006

We calculate the exact Landau-Zener transition probabilities for a qubit with an arbitrary linear coupling to a bath at zero temperature. The final quantum state exhibits a peculiar entanglement between the qubit and the bath. In the special case of diagonal coupling, the bath does not influence the transition probability, whatever the speed of the… (More)

Under the illumination of intense off-resonant laser light, the electronic states of semiconductors are strongly modified, or dressed, by the oscillating electric field. We present a framework using linear combination of atomic orbital band theory to calculate the dressed band structure and optical absorption spectrum of covalent semiconductors in an… (More)

Keiji Saito,1,2 Martijn Wubs,3 Sigmund Kohler,3 Yosuke Kayanuma,4 and Peter Hänggi3 1Department of Physics, Graduate School of Science, University of Tokyo, Tokyo 113-0033, Japan 2Department of Physics, Graduate School of Science, 2 CREST, JST, 4-1-8 Honcho Kawaguchi, Saitama 332-0012, Japan 3Institut für Physik, Universität Augsburg, Universitätsstraße 1,… (More)

- Yutaka Takata, Yosuke Kayanuma, +13 authors Takashi Ishikawa
- Physical review letters
- 2008

High energy resolution photoelectron spectroscopy of conduction electrons in the vicinity of the Fermi edge in Al and Au at excitation energies of 880 and 7940 eV was carried out using synchrotron radiation. For the excitation energy of 7940 eV, the observed Fermi energy of Al shows a remarkable shift to higher binding energy as compared with that of Au,… (More)

- Ryo Iikubo, Takehisa Fujiwara, +4 authors Yosuke Kayanuma
- The journal of physical chemistry letters
- 2015

Using 42 nm high harmonic pulses, the dissociation dynamics of 1,2-butadiene was investigated by time-resolved photoelectron spectroscopy (TRPES), enabling us to observe dynamical changes of multiple molecular orbitals (MOs) with higher temporal resolution than conventional light sources. Because each lower-lying occupied MO has particular spatial electron… (More)

We investigate the influence of a dipole interaction with a classical radiation field on a qubit during a continuous change of a control parameter. In particular, we explore the non-adiabatic transitions that occur when the qubit is swept with linear speed through resonances with the time-dependent interaction. Two classic problems come together in this… (More)

M. Vos,1 M. R. Went,1 Y. Kayanuma,2 S. Tanaka,3 Y. Takata,4 and J. Mayers5 1Atomic and Molecular Physics Laboratories, Research School of Physical Sciences and Engineering, The Australian National University, Canberra ACT 0200, Australia 2Graduate School of Engineering, Osaka Prefecture University, Sakai, Osaka 599-8531, Japan 3Graduate School of Sciences,… (More)

X-ray emission spectra (XES) corresponding to the Ce 5p + 3d transition in insulating Ce compounds are studied theoretically with the impurity Anderson model. It is shown that the XES reflects the dynamical relaxation through the hybridization between 4f and valence band states, as well as the lifetime of 3d core hole.

- Shingo Hayashi, Keigo Kato, Katsura Norimatsu, Masaki Hada, Yosuke Kayanuma, Kazutaka Nakamura
- Scientific reports
- 2014

Electronic and phonon coherence are usually measured in different ways because their time-scales are very different. In this paper we simultaneously measure the electronic and phonon coherence using the interference of the electron-phonon correlated states induced by two phase-locked optical pulses. Interferometric visibility showed that electronic… (More)