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17 papers · 1 filter
Line Broadening and Decoherence of Electron Spins in Phosphorus-Doped Silicon Due to Environmental 29^Si Nuclear Spins
Eisuke Abe, Akira Fujimoto, Junichi Isoya +2
Phosphorus-doped silicon single crystals with 0.19 % <= f <= 99.2 %, where f is the concentration of 29^Si isotopes, are measured at 8 K using a pulsed electron spin resonance tech…
Multimode theory of measurement-induced non-Gaussian operation on wideband squeezed light
M. Sasaki, S. Suzuki
We present a multimode theory of non-Gaussian operation induced by an imperfect on/off-type photon detector on a splitted beam from a wideband squeezed light. The events are define…
Quantum Brachistochrone
Alberto Carlini, Akio Hosoya, Tatsuhiko Koike +1
We present a general framework for finding the time-optimal evolution and the optimal Hamiltonian for a quantum system with a given set of initial and final states. Our formulation…
Dimensional Reduction of Seiberg-Witten Monopole Equations, N=2 Noncommutative Supersymmetric Field Theories and Young Diagrams
Akifumi Sako, Toshiya Suzuki
We investigate the Seiberg-Witten monopole equations on noncommutative(N.C.) R^4 at the large N.C. parameter limit, in terms of the equivariant cohomology. In other words, N}=2 sup…
On the Wave aspect of Relativistic Quantum Fields
Minoru Omote, Susumu kamefuchi
In the state-vector space for relativistic quantum fields a new set of basis vectors are introduced, which are taken to be eigenstates of the field operators themselves. The corres…
A Modeling of the Super-Eddington Luminosity in Nova Outbursts: V1974 Cygni
Mariko Kato, Izumi Hachisu
We have modeled nova light curves exceeding the Eddington luminosity. It has been suggested that a porous structure develops in nova envelopes during the super Eddington phase and…