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[Published / Submitted Papers]

[Hyperbolic / Sphericalc Geometry: Quantum and Classical]

[74] Andrej Gendiar, Michal Daniska, Roman Krcmar, Tomotoshi Nishino, "Mean-field universality class induced by weak hyperbolic curvatures"
Phys. Rev. E 90 (2014) 012122 (arXiv:1403.5377)
[72] Andrej Gendiar, Roman Krcmar, Sabine Andergassen, Michal Daniska, Tomotoshi Nishino, "Weak correlation effects in the Ising model on triangular-tiled hyperbolic lattices"
Phys. Rev. E 86 (2012) 021105 (arXiv:1205.3850)
[71] H. Ueda, H. Nakano, K. Kusakabe, T. Nishino, "Hyperbolic Deformation Applied to S = 1 Spin Chains - Scaling Relation in Excitation Energy -"
J. Phys. Soc. Jpn. 80 (2011) 094001 (arXiv:1102.0845)
[70] A. Gendiar, M. Daniska, Y. Lee, T. Nishino, "Suppression of finite-size effects in one-dimensional quantum systems"
Phys. Rev. A 83 (2011) 052118 (arXiv:1012.1472)
[69] T. Hikihara, T. Nishino, "Connecting distant ends of one-dimensional critical systems by sin-square deformation"
Phys. Rev. E 83 (2011) 060414 (arXiv:1012.0472)
[68] Hiroshi Ueda, Andrej Gendiar, Valentin Zauner, Takatsugu Iharagi, Tomotoshi Nishino, "Transverse Field Ising Model Under Hyperbolic Deformation"
(arXiv:1008.3458)
[67] Hiroshi Ueda, Hiroki Nakano, Koichi Kusakabe, Tomotoshi Nishino, "Scaling Relation for Excitation Energy Under Hyperbolic Deformation"
Prog. Theor. Phys. 124 (2010) 389. (arXiv:1006.2652)
[66] Takatsugu Iharagi, Andrej Gendiar, Hiroshi Ueda, Tomotoshi Nishino, "Phase Transition of the Ising model on a Hyperbolic Lattice"
J. Phys. Soc. Jpn. 79 (2010) 104001. (arXiv:1005.3378)
[65] Kouichi Okunishi, Tomotoshi Nishino, "Scale free property and edge state of Wilson's numerical renormalization group"
Phys. Rev. B 82 (2010) 144409. (arXiv:1001.2594)
[63] Hiroshi Ueda, Hiroki Nakano, Koichi Kusakabe, "Gap Estimation by means of Hyperbolic Deformation"
(arXiv:0812.4513: unpublished)
[62] Andrej Gendiar, Roman Krcmar, Tomotoshi Nishino, "Spherical deformations applied to one-dimensional quantum systems"
Prog. Theor. Phys. 122 (2009) 953-967. (arXiv:0810.0622) [Errata: Prog. Theor. Phys. 123 (2010) 393.]
[61] Hiroshi Ueda, Tomotoshi Nishino, "Hyperbolic Deformation on Quantum Lattice Hamiltonians"
J. Phys. Soc. Jpn. 78 (2008) 014001. (arXiv:0808.3858)
[59] Roman Krcmar, T. Iharagi, Andrej Gendiar, Tomotoshi Nishino, "Tricritical point of J1-J2 Ising model on hyperbolic lattice"
Phys. Rev. E 78 (2008) 061119. (arXiv:0807.0150)
[58] Andrej Gendiar, Roman Krcmar, Kouiji Ueda, Tomotoshi Nishino, "Phase transition of clock models on hyperbolic lattice studied by corner transfer matrix renormalization group method "
Phys. Rev. E 77 (2008) 041123 (arXiv:0801.0836)
[57] Roman Krcmar, Andrej Gendiar, Kouji Ueda, Tomotoshi Nishino, "Ising model on hyperbolic lattice studied by corner transfer matrix renormalization group method"
J. Phys. A: Math. Theor. 41 (2008) 215001. (arXiv:0712.0461)
[56] Kouji Ueda, Roman Krcmar, Andrej Gendiar, Tomotoshi Nishino, "Corner Transfer Matrix Renormalization Group Method Applied to the Ising Model on the Hyperbolic Plane"
J. Phys. Soc. Jpn. 76 (2007) 084004. (arXiv:0704.1949)

[Matrix / Tensor Product Formulations]

[76] Jozef Genzor, Andrej Gendiar, Tomotoshi Nishino, "Phase Transition of the Ising Model on Fractal Lattice"
Phys. Rev. E 93 (2016) 012141 (arXiv:1509.05596)
[75] Hiroshi Ueda, Kouichi Okunishi, Tomotoshi Nishino, "Doubling of Entanglement Spectrum in Tensor Renormalization Group"
Phys. Rev. B 89 (2014) 075116 (arXiv:1306.6829)
[73] V. Zauner, M. Ganahl, H. G. Evertz, T. Nishino, "Time Evolution within a Comoving Window: Scaling of signal fronts and magnetization plateaus after a local quench in quantum spin chains"
J. Phys: Cond. Mat. 27 (2015) 425602 (arXiv:1207.0862)
[64] Hiroshi Ueda, Andrej Gendiar, Tomotoshi Nishino, "A Classical Background for the Wave Function Prediction in the Infinite System DMRG Method"
J. Phys. Soc. Jpn. 79 (2010) 044001 (arXiv:0911.5601)
[60] Hiroshi Ueda, Tomotoshi Nishino, Koichi Kusakabe, "Two-Site shift Product Wave Function Renormalization Group Method Applied to Quantum Systems"
J. Phys. Soc. Jpn. 77 (2008) 114002 (arXiv:0807.1798)
[55] Kouji Ueda, Chenglong Jin, Naokazu Shibata, Yasuhiro Hieida, Tomotoshi Nishino, "Least Action Principle for the Real-Time Density Matrix Renormalization Group"
(cond-mat/0612480: unsubmitted)
[53] Kouji Ueda, Tomotoshi Nishino, Kouichi Okunishi, Yasuhiro Hieida, Rene Derian, and Andrej Gendiar, "Product Wave Function Renormalization Group: construction from the matrix product point of view"
J. Phys. Soc. Jpn. 75 (2006) 014003 (cond-mat/0509320)
[51] A. Gendiar, T. Nishino, and R. Derian, "Estimation of the Magnetic Critical Exponent by Tensor Product Variational Approach"
Acta Phys. Slov. 55 (2005) 141 (cond-mat/0412192)
[**] Y. Nishio, N. Maeshima, A. Gendiar, Y. Hieida, and T. Nishino, "Tensor Product Variational Formulation for Quantum Systems"
(cond-mat/0401115 unpublished)
[49] A. Gendiar and T. Nishino: "Phase Diagram of the 3D ANNNI Model"
Phys. Rev. B71 (2005) 024404 (cond-mat/0210356 ver.3)
[48] A. Gendiar, N. Maeshima, and T. Nishino, "Stable Optimization of Tensor Product Variational Functions"
Prog. Theor. Phys. 110 (2003) No.4, 691-699. (cond-mat/0303376)
[46] N. Maeshima, Y. Hieida, T. Nishino, and K. Okunishi "Matrix Product State Approximation for the Maximum-Eigenvalue Eigenstate of the Quantum Transfer Matrix"
Prog. Theor. Phys. Sppl. 145 (2002) 204.
[45] A. Gendiar and T. Nishino, "Latent Heat Observation of the q=3, 4, and 5 Potts models by Tensor Product Variational Approach"
Phys. Rev. E65, 046702 (2002) (cond-mat/0102425)
[44] N. Maeshima, Y. Hieida, Y. Akutsu, T. Nishino, and K. Okunishi, "Vertical Density Matrix Algorithm: A Higher-Dimensional Numerical Renormalization Scheme based on the Tensor Product State Ansatz"
Phys. Rev. E64 (2001) 016705 [1-6] (cond-mat/0101360)
[41] T. Nishino, Y. Hieida, K. Okunishi, N. Maeshima, Y. Akutsu and A. Gendiar:[PS|PDF] "Two-Dimensional Tensor Product Variational Formulation"
Prog. Theor. Phys. 105 (2001) No.3, 409-417. (cond-mat/0011103)
[40] T. Nishino, K. Okunishi, Y. Hieida, N. Maeshima and Y. Akutsu: [PS|PDF] "Self-Consistent Tensor Product Variational Approximation for 3D Classical Models"
Nucl. Phys. B575 (2000) 504-512. (cond-mat/0001083)
[39] K. Okunishi and T. Nishino: [PS|PDF] "Kramers-Wannier Approximation for the 3D Ising Model"
Prog. Theor. Phys.103 (2000) 541-548. (cond-mat/9909097)
[35] H. Takasaki, T. Hikihara, and T. Nishino: [PS|PDF] "Fixed Point of the Finite System DMRG"
J. Phys. Soc. Jpn. 68 (1999) 1537-1540. (cond-mat/9810241)
[31] J. Dukelsky, M.A. Martin-Delgado, T. Nishino and G. Sierra: "Equivalence of the variational matrix product method and the density matrix renormalization group applied to spin chains"
Europhys. Lett, 43 No. 4 (1998) 457-462. (cond-mat/9710310)
[16] T. Nishino and K. Okunishi: "Product Wave Function Renormalization Group"
J. Phys. Soc. Jpn. 64 (1995) 4084-4087. (cond-mat/9510004)

[Density Matrix Renormalization Group: Classical Systems and Methods]

[80] H. Ueda, K. Okunishi, R. Krcmar, A. Gendiar, S. Yunoki, and T. Nishino, "Critical behavior of the two-dimensional icosahedron model"
(cond-mat/1709.01275)
[79] Y. Sasagawa, H. Ueda, A. Gendiar, J. Genzor, and T. Nishino, "Entanglement Entropy of the Two-Dimensional +-J Ising Model on the Nishimori Line"
(cond-mat/1708.03463)
[78] Roman Krcmar, Andrej Gendiar, Tomotoshi Nishino, "Phase transition of the six-state clock model observed from the entanglement entropy"
(cond-mat/1612.07611)
[77] Roman Krcmar, Andrej Gendiar, Tomotoshi Nishino, "Phase diagram of truncated tetrahedral model"
Phys. Rev. E94, 022134 (2016). (cond-mat/1512.09059)
[54] Rene Derian, Andrej Gendiar, and Tomotoshi Nishino, "Modulation of Local Magnetization in two-dimensional Axial-Next-Nearest-Neighbor Ising model"
J. Phys. Soc. Jpn. 75 (2006) 114001 (cond-mat/0605411)
[52] Kouji Ueda, Ryota Otani, Yukinobu Nishio, Andrej Gendiar, and Tomotoshi Nishino, "Critical Point of a Symmetric Vertex Model"
J. Phys. Soc. Jpn. 74 (2005) 1871 (cond-mat/0501277)
[50] K. Ueda, R. Otani, Y. Nishio, A. Gendiar, and T. Nishino, "Snapshot Observation for 2D Classical Lattice Models by CTMRG"
J. Phys. Soc. Jpn. 74 (2005) supplement p.111-114. (cond-mat/0409445)
[47] A. Kemper, A. Gendiar, T. Nishino, A. Schadschneider, and J. Zittartz, "Stochastic Light-Cone CTMRG: a new DMRG approach to stochastic models"
J. Phys. A: Math. Gen. 36 (2003) 29-41. (cond-mat/0210487)
[43] H. Takasaki, T. Nishino and Y. Hieida: [PS|PDF] "Phase Diagram of a 2D Vertex model"
J. Phys. Soc. Jpn. 70 (2001) No.5, 1429-1430. (cond-mat/0012490)
[36] T. Nishino, K. Okunishi, Y. Hieida, T. Hikihara, and H. Takasaki: [PS|PDF] "Transfer-Matrix Approach to Classical Systems"
Springer Lecture Note in Physics 528 ed. I. Peschel, X. Wang, K. Hallberg, Springer Berlin (1999) pp. 127-148. (REVIEW)
[34] T. Nishino, T. Hikihara, K. Okunishi, and Y. Hieida: [PS|PDF] "Density Matrix Renormalization Group --- Introduction from a variational view point ---"
Int. J. Mod. Phys. B13 (1999) 1-24. (REVIEW)
[32] T. Nishino and K. Okunishi:[PS|PDF] "A Density Matrix Algorithm for 3D Classical Models"
J. Phys. Soc. Jpn. 67 (1998) 3066-3072. (cond-mat/9804134)
[30] T. Nishino and K. Okunishi:[PS|PDF] "Numerical Latent Heat Observation of the q = 5 Potts Model"
J. Phys. Soc. Jpn. 67 (1998) 1492-1493. (cond-mat/9711214)
[27] T. Nishino and K. Okunishi: [PS|PDF] "Corner Transfer Matrix Algorithm for Classical Renormalization Group"
J. Phys. Soc. Jpn. 66 (1997) 3040-3047. (cond-mat/9705072)
[25] T. Nishino and K. Okunishi:[PS|PDF] "Density Matrix and Renormalization for Classical Lattice Models"
Springer Lecture Note in Physics 478 (1997) 167-183. (cond-mat/9610107) (REVIEW)
[23] T. Nishino, K. Okunishi and M. Kikuchi:[PS|PDF] "Numerical Renormalization Group at Criticality"
Physics Letters A213 (1996) 69-72. (cond-mat/9601078)
[22] T. Nishino and K. Okunishi: [PS|PDF] "Corner Transfer Matrix Renormalization Group Method"
J. Phys. Soc. Jpn. 65 (1996) 891-894. (cond-mat/9507087)
[15] T. Nishino: [PS|PDF] "Density Matrix Renormalization Group Method for 2D Classical Models"
J. Phys. Soc. Jpn. 64 (1995) 3598-3601 (cond-mat/9508111)

[Density Matrix Renormalization Group: Quantum Systems and Methods]

[42] T. Wada and T. Nishino: "Interaction-round-a-face density-matrix renormalization-group method",
Comp. Phys. Commun. 142 (2001) 164-167.
[38] T. Hikihara, T. Tonegawa, M. Kaburagi, T. Nishino, S. Miyashita, and H.J. Mikeska: "Ground-state Phase Diagram of the Spin-1/2-1/2-1-1 Chain"
J. Phys. Soc. Jpn. 69 (2000) No.4, 1207-1218.
[37] T. Nishino and N. Shibata: [PS|PDF] "Efficiency of Symmetric Targeting for Finite-T DMRG"
J. Phys. Soc. Jpn. 68 (1999) No.11, 3501-3504. (cond-mat/9905229)
[33] S. Watanabe, Y. Kuramoto, T. Nishino and N. Shibata: "Spin, Charge and Quasi-Particle Gaps in the one-dimensional Kondo Lattice with f^2 Configuration"
J. Phys. Soc. Jpn. 68 (1999) 159-165. (cond-mat/9810054)
[29] T. Tonegawa, T. Hikihara, M. Kaburagi, T. Nishino, S. Miyashita and H.J. Mikeska: "Ground-state and Thermodynamic Properties of the Quantum Mixed Spin-1/2-1/2-1-1 Chain"
J. Phys. Soc. Jpn. 67 (1998) 1000-1013. (cond-mat/9712296)
[28] T. Tonegawa, T. Hikihara, T. Nishino, M. Kaburagi, S. Miyashita and H.J. Mikeska: "One-dimensional Heisenberg Antiferromagnet in which two S = 1/2 and two S = 1 spins are arranged alternatively"
J. Mag. 177-181 (1998) 647-649. (cond-mat/9712298)
[26] G. Sierra and T. Nishino: "Density Matrix Renormalization Group Method Applied to Interaction round a face Hamiltonian"
Nuclear Physics B495 (1997) 505-532. (cond-mat/9610221)
[24] N. Shibata, Kazuo Ueda, T. Nishino, T. Ishii: "Large Fermi Surface of the one-dimensional Kondo-Latice Model observed by Fridel oscillations"
Physica B 230-232 (1997) 1024-1027.
[21] N. Shibata, K. Ueda, T. Nishino and C. Ishii: "Fridel Oscillations in the One-dimensional Kondo Lattice Model"
Phys. Rev. B54 (1996) 13495-13498. (cond-mat/9608118)
[20] N. Shibata, T. Nishino, K. Ueda and C. Ishii: "Spin and Charge Gaps in the One-dimensional Kondo-Lattice Model with Coulomb Interaction between Conduction Electrons"
Phys. Rev. B53 (1996) R8828-8832. (cond-mat/9608117)
[17] H. Otsuka and T. Nishino: "Gap-formation mechanism of the Kondo-necklate model"
Phys. Rev. B52 (1995) 15066-15069.

[Lanczos Study of Spin Chains]

[18] M. Kaburagi, T. Moriwaki, T. Nishino, and T. Tonegawa: "Impurity Bond Effect on the Antiferromagnetic Ising-like Chain"
Int. J. Mod. Phys. C7 (1996) 457-62.
[6] M.Kaburagi, T.Tonegawa and T.Nishino: "Numerical Study of Quantum Spin System"
Springer Proc. in Phys. 70 (1992) 179-180.

[Strongly Correlated Fermionic Systems: Lanczos/QMC study]

[19] T. Seki, Y. Kuramoto, and T. Nishino: "Origin of Magnetic Angular Momentum in a Quantum Dot under Strong Magnetic Field"
J. Phys. Soc. Jpn. 65 (1996) 3945-3951. (cond-mat/9606152)
[14] T. Nishino and Kazuo Ueda: "Dynamical Correlation Functions of one-dimensional Kondo Insulators"
Phyica B 206-207 (1995) 813-815.
[13] T. Nishino, K. Ueda, and H. Tsunetsugu: "Fermi Volume of the Kondo-Lattice Model"
Springer Series in Solid State Science 118 (1994) 113-120.
[12] Kazuo Ueda, T. Nishino and H. Tsunetsugu: "Large Fermi Surface of the one-dimensional Kondo Lattice Model"
Phys. Rev. B50 (1994) 612-615.
[11] Kazuo Ueda, T. Nishino, H. Tsunetsugu: "Large Fermi Survace of the one-dimensional Kondo-Latice Model"
Physica B 199-200 (1994) 191-194.
[10] Kazuo Ueda, M.Sigrist, H. Tsunetsugu and T. Nishino: "The Ground State Phase Diagram of the Kondo Lattice Model"
Physica B 194-196 (1994) 255-256.
[9] T. Nishino and Kazuo Ueda: "Spin- and Charge-Excitation Gaps in the one-dimensional Periodic Anderson Model"
Phys. Rev. B47, No. (1993) 12451-12458.
[8] T. Nishino: "Survay of the Charge Excitation Gap by a 2D Filter"
Physica B 186-188 (1993) 885-887.
[7] T. Nishino: "Charge Excitation Gap of the Extended Hubbard Model"
J. Phys. Soc Jpn 61, No.10 (1992) 3651-3657.
[5] T. Nishino: "Ground State Wave Function of an Extended Hubbard Model"
Springer Proc. in Phys. 70 (1992) 117-118.
[4] M. Takahashi, T. Nishino and J. Kanamori: "Internal Magnetic Field at the La Atom in La2MO4"
J. Phys. Soc. Jpn 60, No.4 (1991) 1365-1371.
[3] T. Nishino: "Effect of Hole Itinerancy on XAS and XPS Spectra of the High-Tc Compounds"
J. Phys. Soc. Jpn 59, No.12 (1990) 4376-4383.
[2] T. Nishino and J. Kanamori: "Electronic Structure of Cu-O3 Pyramidal Plane"
J. Phys. Soc. Jpn 59, No.1 (1990) 253-258.
[1] T. Nishino, M. Kikuchi and J. Kanamori: "A Model for Superconducting Cu Oxides"
Solid State Comm. 68, No.5 (1988) 455-458.