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Neutron Brillouin Scattering and Low-Q Dynamics in Condensed Matter
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...
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    Observation of Magnetic Skyrmions by Neutron Scattering
    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...
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      Neutron Scattering Studies on 4 f 2-Electron Multipoles in Pr-based Systems
      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...
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        Hybridization and Decay of Magnetic Excitations in Two-Dimensional Triangular Lattice Antiferromagnets
        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...
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          Nonreciprocal Magnons in Noncentrosymmetric Magnets
          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...
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            Local Dynamics in Liquids and Glassy Materials
            作者：Takeshi Egami
            来源：[J].Journal of the Physical Society of Japan(IF 2.087), 2019, Vol.88 (8)JPS
            摘要：\(S(Q,E)\)
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              Large-scale Coherent Ising Machine
              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...
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                On the Question of Ergodicity in Quantum Spin Glass Phase and Its Role in Quantum Annealing
                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...
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                  Leveraging Quantum Annealing for Election Forecasting
                  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...
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                    Quantum Annealing amid Local Ruggedness and Global Frustration
                    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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