25 research outputs found
Spin dynamics in the supersymmetric t-J model with inverse-square interaction
No full textMitsuhiro Arikawa, Takashi Yamamoto, Yasuhiro Saiga and Yoshio Kuramot
Soil and Vegetation Habitat Conditions of Saiga Antelope Population (Saiga Tatarica) in the «Chernye Zemli» Reserve
Get PDFThe article provides characteristics of soil and vegetation conditions of the state nature reserve «Chernye Zemli» as a modern habitat of the saiga population in Kalmykia. The author reveals the main reasons for the fall in saiga antelope populations over the last decade which are connected with a complex of factors: reduced protection, a high level of the wolf population, increased fire risk. One of the fundamental conditions is the change in the composition of grassland vegetation as the core platform for the existence of the saiga population in the «Chernye Zemli» reserve
Exact electron addition spectrum in 1D supersymmetric t-J model with 1/r2 interaction
No full textArikawa, M. ; Yamamoto, T. ; Saiga, Y. ; Kuramoto, Y
長距離相互作用と異方性を持つ1次元量子系の基底状態と励起スペクトル(修士論文(1995年度))
Get PDFこの論文は国立情報学研究所の電子図書館事業により電子化されました。長距離相互作用のある1次元スピンモデルおよびt-Jモデルに異方性を導入して,磁化のある基底状態が解析的に解けるモデルを提出する.導入された異方性パラメーターがある条件を満たすとき,2つのモデルの基底固有関数はともにJastrow型波動関数になる.一方,この条件からはずれたときでも,Jastrow型波動関数は非常によい試行関数になっていることが,重なり積分の計算からわかる.さらに,それらのモデルにおける励起スペクトルを,厳密対角化の手法を用いて調べる
Dynamics and Quasi-Particle Picture of One-Dimensional Quantum Systems with Long-Range Interaction(Abstracts of Doctoral Dissertations,Annual Report (form April 1998 to March 1999))
Get PDFapplication/pdf紀要類(bulletin)158849 bytesdepartmental bulletin pape
Electron Addition Spectrum in the Supersymmetric t-J Model with Inverse-Square Interaction
Get PDFapplication/pdf学術論文 (Article)217636 bytesjournal articl
Electron Addition Spectrum in the Supersymmetric<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi mathvariant="italic">t</mml:mi><mml:mi>−</mml:mi><mml:mi mathvariant="italic">J</mml:mi></mml:math>Model with Inverse-Square Interaction
No full textExact Dynamical Structure Factor of the Degenerate Haldane-Shastry Model
Get PDFapplication/pdf学術論文 (Article)223478 bytesjournal articl
