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48 papers · 1 filter
ASCA Discovery of Diffuse 6.4 keV Emission Near the Sgr C Complex: A New X-ray Reflection Nebula
H. Murakami, K. Koyama, M. Tsujimoto +2
We present an ASCA discovery of diffuse hard X-ray emission from the Sgr C complex with its peak in the vicinity of the molecular cloud core. The X-ray spectrum is characterized by…
Numerical Replica Limit for the Density Correlation of the Random Dirac Fermion
Shinsei Ryu, Yasuhiro Hatsugai
The zero mode wave function of a massless Dirac fermion in the presence of a random gauge field is studied. The density correlation function is calculated numerically and found to…
Vortex Matter Transition in BiSrCaCuO under Tilted Fields
S. Ooi, T. Shibauchi, K. Itaka +2
Vortex phase diagram under tilted fields from the axis in BiSrCaCuO is studied by local magnetization hysteresis measurements using Hall probes. Whe…
Direct measurement of sub-pixel structure of the EPIC MOS CCD on-board th e XMM/NEWTON satellite
J. Hiraga, H. Tsunemi, A. D. Short +3
We have used a mesh experiment in order to measure the sub-pixel structure of the EPIC MOS CCDs on-board the XMM/NEWTON satellite. The EPIC MOS CCDs have 40 m-square pixels whic…
New high-efficiency source of photon pairs for engineering quantum entanglement
Kaoru Sanaka, Karin Kawahara, Takahiro Kuga
We have constructed an efficient source of photon pairs using a waveguide-type nonlinear device and performed a two-photon interference experiment with an unbalanced Michelson inte…
Phase diagram of the three-dimensional Gaussian random field Ising model: A Monte Carlo renormalization-group study
M. Itakura
With the help of the replica exchange Monte Carlo method and the improved Monte Carlo renormalization-group scheme, we investigate over a wide area in the phase diagram of the Gaus…