日本物理学会
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作者:Shinichi Itoh , Yasuo Endoh
来源:[J].Journal of the Physical Society of Japan(IF 2.087), 2019, Vol.88 (8)JPS
摘要:Neutron Brillouin scattering (NBS) is an inelastic neutron scattering near the forward direction. This technique is effective for observing coherent excitations in non-single-crystal samples, such as ferromagnetic spin waves in powder samples and acoustic phonons in liquids and p...
作者:Taro Nakajima , Taka-hisa Arima
来源:[J].Journal of the Physical Society of Japan(IF 2.087), 2019, Vol.88 (8)JPS
摘要:A magnetic skyrmion is defined as a topological defect in the continuum model of two-dimensional ferromagnets. Since the first observation of the triangular lattice of magnetic skyrmions in MnSi by neutron small-angle scattering, neutron scattering has been one of the most powerf...
作者:Kazuaki Iwasa
来源:[J].Journal of the Physical Society of Japan(IF 2.087), 2019, Vol.88 (8)JPS
摘要:The degrees of freedom of electron multipoles in various rare-earth alloy compounds have been investigated over the last four decades. Recently, it has been found that the multipole orderings accompany exotic transport properties, metal–insulator transitions, superconductivi...
作者:Taehun Kim , Kisoo Park , Jonathan C. Leiner ...
来源:[J].Journal of the Physical Society of Japan(IF 2.087), 2019, Vol.88 (8)JPS
摘要:Elementary quasiparticles in solids such as phonons and magnons occasionally have nontrivial interactions between them, as well as among themselves. As a result, their energy eigenvalues are renormalized, the quasiparticles spontaneously decay into a multi-particle continuum stat...
作者:Taku J Sato , Kittiwit Matan
来源:[J].Journal of the Physical Society of Japan(IF 2.087), 2019, Vol.88 (8)JPS
摘要:In a noncentrosymmetric crystalline material, the propagation of particles or quasiparticles can be nonreciprocal, i.e., the left-moving and right-moving (quasi)particles become inequivalent. In a noncentrosymmetric magnet, such nonreciprocity is expected for magnons, the qu...
作者:Hiroki Takesue , Takahiro Inagaki , Kensuke Inaba ...
来源:[J].Journal of the Physical Society of Japan(IF 2.087), 2019, Vol.88 (6)JPS
摘要:Today, world-wide efforts are being undertaken to explore non-von Neumann computation methods to overcome “the end of Moore’s law”. A promising approach is the coherent Ising machine (CIM), which utilizes a network of degenerate optical parametric oscillators for solvin...
作者:Sudip Mukherjee , Bikas K Chakrabarti
来源:[J].Journal of the Physical Society of Japan(IF 2.087), 2019, Vol.88 (6)JPS
摘要:We first review, following our earlier studies, the critical behavior of the quantum Sherrington–Kirkpatrick (SK) model at finite as well as at zero temperatures. Through the analysis of the Binder cumulant we determined the entire phase diagram of the model and from the sca...
作者:Maxwell Henderson , John Novak , Tristan Cook
来源:[J].Journal of the Physical Society of Japan(IF 2.087), 2019, Vol.88 (6)JPS
摘要:Accurate, reliable sampling from fully-connected graphs with arbitrary correlations is a difficult problem. Such sampling requires knowledge of the probabilities of observing every possible state of a graph. As graph size grows, the number of model states becomes intractably larg...
作者:James King , Sheir Yarkoni , Jack Raymond ...
来源:[J].Journal of the Physical Society of Japan(IF 2.087), 2019, Vol.88 (6)JPS
摘要:Quantum annealers are designed to utilize quantum tunneling to find good solutions to hard optimization problems. When constructing a family of synthetic inputs to test the potential of a quantum annealing platform, one should therefore ensure that the inputs a) have locally rugg...

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