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Number of items at this level: 81.

2009

Schneider, Johannes and Hirtreiter, Christian and Morgenstern, Ingo (2009) On the problem of finding a suitable distribution of students to universities in Germany. Physica A Statistical Mechanics and its Applications 388 (20), pp. 4475-4483.

Bogner, Ludwig and Alt, Marco and Discherl, Thomas and Morgenstern, Ingo and Latscha, Christof and Rickhey, Mark (2009) Fast direct Monte Carlo optimization using the inverse kernel approach. Physics in Medicine and Biology 54 (12), pp. 4051-4067.

2008

Zizler, Markus Albert (2008) Multi-objective optimisation of a capacitated and dynamic multi-item inventory system using physical(-related) metaheuristics. PhD, Universität Regensburg

2001

Ebersbach, Anja and Schneider, Johannes and Morgenstern, Ingo (2001) Simulating traffic on german Highways based on the Nagel-Schreckenberg-Model. International Journal of Modern Physics C (ijmpc) 12 (7), pp. 1081-1089.

Bentner, Johannes and Bauer, Günter and Obermair, Gustav M. and Morgenstern, Ingo and Schneider, Johannes (2001) Optimization of the time-dependent traveling salesman problem with Monte Carlo methods. Physical Review E (PRE) 64 (3), 036701.

2000

Bauernfeind, M. and Hackl, R. and Matuttis, H. G. and Singer, Johannes Maria and Husslein, Thomas and Morgenstern, Ingo (2000) Optimization of production panning problems: A case study for assembly lines. International Journal of Modern Physics C (ijmpc) 11 (5), pp. 949-972.

Ebersbach, Anja and Schneider, Johannes and Morgenstern, Ingo and Hammwöhner, Rainer (2000) The influence of trucks on traffic flow: An investigation on the Nagel-Schreckenberg-Model. International Journal of Modern Physics C (ijmpc) 11 (4), pp. 837-842.

Fettes, Werner and Morgenstern, Ingo (2000) Limitations of the stochastic diagonalization and the projector QMC in the 2D Hubbard model. Computer Physics Communications Package 124 (2-3), pp. 148-168.

1999

Morgenstern, Ingo and Fettes, Werner and Husslein, Thomas (1999) Critical current in the high-Tc Glass model. International Journal of Modern Physics C (ijmpc) 10 (7), pp. 1335-1345.

Hackl, R. and Morgenstern, Ingo (1999) A correlation between percolation model and ising model. International Journal of Modern Physics C (ijmpc) 7 (4), pp. 609-612.

Fettes, Werner and Morgenstern, Ingo (1999) Evidence for d-wave superconductivity in the repulsive Hubbard model. The European Physical Journal B - Condensed Matter 9 (4), pp. 635-639.

Morgenstern, Ingo and Fettes, Werner and Husslein, Thomas and Newns, Dennis M. and Pattnaik, Pratap C. (1999) Glass model, Hubbard Model and high-temperature superconductivity. International Journal of Modern Physics C (ijmpc) 10 (1), pp. 309-320.

1998

Schneider, Johannes and Morgenstern, Ingo and Singer, Johannes Maria (1998) Bouncing towards the optimum: Improving the results of Monte Carlo optimization algorithms. Physical Review E (PRE) 58 (4), pp. 5085-5095.

Fettes, Werner and Morgenstern, Ingo (1998) Finite Size Scaling in the tt'-Hubbard Model and in BCS-Reduced Hubbard Models. International Journal of Modern Physics C (ijmpc) 9 (7), pp. 943-985.

1997

Fettes, Werner and Morgenstern, Ingo and Husslein, Thomas (1997) Parallelization of the exact diagonalization of the t−t′-Hubbard model. Computer Physics Communications Package 106 (1-2), pp. 1-9.

Hackl, R. and Morgenstern, Ingo (1997) Rapid Close-to-Optimum Optimization by Genetic Algorithms. International Journal of Modern Physics C (ijmpc) 8 (5), pp. 1103-1117.

Fettes, Werner and Morgenstern, Ingo and Husslein, Thomas (1997) Application of the SD Technique for Solving a BCS-Reduced Hubbard like Hamiltonian. International Journal of Modern Physics C (ijmpc) 8 (5), pp. 1037-1061.

Schneider, Johannes and Dankesreiter, Markus and Fettes, Werner and Morgenstern, Ingo and Schmid, Martin and Singer, Johannes Maria (1997) Search-space smoothing for combinatorial optimization problems. Physica A Statistical Mechanics and its Applications 243 (1-2), pp. 77-112.

Husslein, Thomas and Fettes, Werner and Morgenstern, Ingo (1997) Comparison of Calculations for the Hubbard Model Obtained with Quantum-Monte-Carlo, Exact, and Stochastic Diagonalization. International Journal of Modern Physics C (ijmpc) 8 (2), pp. 397-415.

1996

Husslein, T. and Morgenstern, Ingo and Newns, D. M and Pattnaik, P. C. and Singer, J. M. and Matuttis, H. G. (1996) Quantum Monte Carlo evidence for d-wave pairing in the two-dimensional Hubbard model at a van Hove singularity. Physical Review B (PRB) 54 (22), pp. 16179-16182.

Schneider, Johannes and Froschhammer, Christine and Morgenstern, Ingo and Husslein, Thomas and Singer, Johannes Maria (1996) Searching for backbones — an efficient parallel algorithm for the traveling salesman problem. Computer physics communications: an international journal devoted to computational physics and computer programs in physics 96 (2-3), pp. 173-188.

1995

Morgenstern, Ingo and Fettes, Werner and Husslein, Thomas and Matuttis, H. G. and Singer, Johannes Maria and Baur, C. (1995) Density of States in the $t^{\prime}$-Hubbard Model: Exact Diagonalisation Results. Journal de Physique I 5 (4), pp. 455-464.

1994

Bauernfeind, M. and Hackl, R. and Matuttis, H. G. and Singer, Johannes Maria and Husslein, Thomas and Morgenstern, Ingo (1994) 3D Ising model with Swendsen-Wang dynamics: a parallel approach. Physica A Statistical Mechanics and its Applications 212 (3-4), pp. 277-298.

Hackl, R. and Matuttis, H. G. and Singer, Johannes Maria and Husslein, Thomas and Morgenstern, Ingo (1994) Efficient parallelization of the 2D Swendsen-Wang algorithm. Physica A; Statistical Mechanics and its Applications 212 (3-4), pp. 261-276.

Husslein, Thomas and Newns, Dennis M. and Matuttis, H. G. and Pattnaik, Pratap C. and Morgenstern, Ingo and Singer, Johannes Maria and Fettes, Werner and Baur, C. (1994) Spin-spin correlations in the tt'-Hubbard model. Journal de Physique 1 4 (11), pp. 1573-1576.

Kleis, U. and Singer, Johannes Maria and Morgenstern, Ingo and Husslein, Thomas and Matuttis, H. G. (1994) Experiences with re-engineering and parallelizing a high-Tc superconductivity code. Parallel Computing 20 (3), pp. 399-407.

1993

Hackl, R. and Matuttis, H. G. and Singer, Johannes Maria and Husslein, Thomas and Morgenstern, Ingo (1993) Parallelization of the 2D Swendsen-Wang Algorithm. International Journal of Modern Physics C (ijmpc) 4 (6), pp. 1117-1130.

Morgenstern, Ingo and Husslein, Thomas and Singer, Johannes Maria and Matuttis, H. G. (1993) Double layer Hubbard model: off-diagonal long range order in the nodeless d-wave channel. Journal de Physique I 3 (4), pp. 1043-1051.

1992

Morgenstern, Ingo and Husslein, Thomas and Singer, Johannes Maria and Matuttis, H. G. (1992) Numerical simulation of the double layer Hubbard model. Journal de Physique II 2 (8), pp. 1489-1493.

Morgenstern, Ingo and Frick, M. and Von der Linden, Wolfgang (1992) Strong correlations and electron-phonon coupling in high-temperature superconductors: a quantum Monte Carlo study. Journal de Physique I 2 (4), pp. 393-400.

Frick, M. and Von der Linden, Wolfgang and Morgenstern, Ingo (1992) Anharmonic phonons and electronic correlations in high-Tc superconducters: A quantum Monte-Carlo study. Helvetica Physica Acta 65 (2-3), pp. 413-414.

1991

Frick, M. and Morgenstern, Ingo and Von der Linden, Wolfgang (1991) Anharmonic phonons and strong electronic correlations in high-TC superconductors: A Quantum Monte Carlo study. Physica C Superconductivity and its Applications 185-18 (3), pp. 1523-1524.

Frick, M. and Morgenstern, Ingo and Von der Linden, Wolfgang (1991) High-temperature superconductivity in the apex-oxygen model: a quantum Monte Carlo study. Zeitschrift für Physik: B, Condensed matter 82 (3), pp. 339-345.

1990

Frick, M. and Pattnaik, P. C. and Morgenstern, Ingo and Newns, D. M and Von der Linden, Wolfgang (1990) Monte Carlo study of superconductivity in the three-band Emery model. Physical Review B (PRB) 42 (4), pp. 2665-2668.

Morgenstern, Ingo and Von der Linden, Wolfgang and Frick, M. and Raedt, H. de (1990) Quantum Monte Carlo simulations for high-Tc models. Physica B Condensed Matter 163 (1-3), pp. 641-642.

Morgenstern, Ingo (1990) Spin-glass behavior in the insulating phase of high-Tc superconductors. Physica B Condensed Matter 163 (1-3), pp. 252-254.

Von der Linden, Wolfgang and Morgenstern, Ingo and Raedt, H. de (1990) Quantum Monte Carlo study of quasiparticles in the Hubbard model. Physical Review B (PRB) 41 (7), pp. 4669-4673.

Frick, M. and Von der Linden, Wolfgang and Morgenstern, Ingo (1990) Local anharmonic vibrations strong correlations and superconductivity: A quantum simulation study. Zeitschrift für Physik: B, Condensed matter 81 (3), pp. 327-335.

Morgenstern, Ingo (1990) Spin-glass antiphase in high-Tc superconductors. Zeitschrift für Physik B: Condensed Matter 80 (1), pp. 7-13.

1989

Rossel, C. and Maeno, Y. and Morgenstern, Ingo (1989) Memory Effects in a Superconducting Y-Ba-Cu-O Single Crystal: A Similarity to Spin-Glasses. Physical Review Letters (PRL) 62 (6), pp. 681-684.

Morgenstern, Ingo (1989) Glassy behavior of high-Tc superconductors. IBM journal of research and development 33 (3), pp. 307-313.

Morgenstern, Ingo (1989) Quantum-Monte-Carlo simulations for fermionic systems. Zeitschrift für Physik: B, Condensed matter 77 (2), pp. 267-273.

1988

Morgenstern, Ingo and Müller, K. A. and Bednorz, J. G. (1988) Glassy behaviour in high-Tc superconductors. Physica B Condensed Matter 152 (1-2), pp. 85-94.

Morgenstern, Ingo and Müller, K. A. and Bednorz, J. G. (1988) Glass behavior of high-Tc superconductors. Physica C Superconductivity and its Applications 153-15 (1), pp. 59-62.

Keller, H.-J. and Pümpin, B. and Kündig, W. and Odermatt, W. and Patterson, B. D. and Schneider, Johannes W. and Simmler, H. and Connell, S. and Müller, K. A. and Bednorz, J. G. and Blazey, K. W. and Morgenstern, Ingo and Rossel, C. and Savic, I. M. (1988) Internal magnetic fields in YBa2Cu3O7−δ from Muon spin rotation experiments: Discussion in terms of a glasslike superconducting state. Physica C Superconductivity and its Applications 153-15 (1), pp. 71-74.

Pümpin, B. and Keller, H.-J. and Kündig, W. and Odermatt, W. and Patterson, B. D. and Schneider, J. W. and Simmler, H. and Conell, S. and Müller, K. A. and Bednorz, J. G. and Morgenstern, Ingo (1988) Internal magnetic fields in the high-temperature superconductor YBa2Cu3O7−δ from muon spin rotation experiments. Zeitschrift für Physik: B, Condensed matter 72 (2), pp. 175-180.

Morgenstern, Ingo and Würtz, D. (1988) Monte Carlo simulations for two-dimensional quantum systems. Zeitschrift für Physik B: Condensed Matter 70 (1), pp. 115-120.

Morgenstern, Ingo (1988) Monte-Carlo algorithm for a two-dimensional Hubbard model of high-Tc superconductivity. Zeitschrift für Physik: B, Condensed matter 70 (3), pp. 291-297.

Morgenstern, Ingo (1988) Numerical simulation of the single-band Hubbard model. Zeitschrift für Physik B; Condensed matter 73 (3), pp. 299-302.

Morgenstern, Ingo (1988) Possible mechanism for high-Tc superconductivity. Zeitschrift für Physik: B, Condensed matter 70 (3), pp. 299-305.

1987

Schneider, Johannes W. and Baumeler, H. and Keller, H. and Odermatt, W. and Patterson, B. D. and Müller, K. and Bednorz, J. G. and Blazey, K. W. and Morgenstern, Ingo (1987) Internal magnetic fields in the high-Tc superconductors La1.8Sr0.2CuO4 and YBa2Cu3O7−δ from muon spin rotation experiments. Physics Letters A 124 (1-2), pp. 107-111.

Morgenstern, Ingo (1987) Neural networks and chip design. Zeitschrift für Physik B; Condensed matter 67 (2), pp. 265-270.

Morgenstern, Ingo and Müller, K. A. and Bednorz, J. G. (1987) Numerical simulations of a high-Tc-superconductive glass model. Zeitschrift für Physik: B, Condensed matter 69 (1), pp. 33-47.

Morgenstern, Ingo and Würtz, D. (1987) Simulated Annealing for “spin-glass-like” optimization problems. Zeitschrift für Physik: B, Condensed matter 67 (3), pp. 397-403.

1986

Morgenstern, Ingo and Huse, David A. (1986) Phenomenological renormalization for spin glasses. Journal of Magnetism and Magnetic Materials 54-57 (1), pp. 170-172.

1985

Morgenstern, Ingo and van Hemmen, J. L. (1985) Numerical simulations and exactly soluble spin-glass models. Physical Review B (PRB) 32 (9), pp. 6058-6060.

Morgenstern, Ingo and Huse, David A. (1985) Finite-size scaling study of the two-dimensional Ising spin glass. Physical Review B (PRB) 32 (5), pp. 3032-3034.

Morgenstern, Ingo and Würtz, D. (1985) Numerical evaluation of the partition-function for one-dimensional quantum-systems. Physical Review B (PRB) 32 (1), pp. 523-526.

Morgenstern, Ingo and Ogielski, Andrew T. (1985) Critical behavior of three-dimensional Ising spin-glass model. Physical Review Letters (PRL) 54 (9), pp. 928-931.

Ogielski, Andrew T. and Morgenstern, Ingo (1985) Critical behavior of three‐dimensional Ising model of spin glass. Journal of Applied Physics 57 (8), pp. 3382-3385.

Morgenstern, Ingo and Würtz, D. (1985) Monte Carlo procedure for 2-dimensional fermion systems. Zeitschrift für Physik B; Condensed matter 61 (2), pp. 219-222.

1984

Morgenstern, Ingo and van Hemmen, J. L. (1984) Short-and long-range interactions in spin-glasses. Physical Review B (PRB) 30 (5), pp. 2934-2936.

Morgenstern, Ingo (1984) Time-dependent specific heat in spin-glasses. Physical Review B (PRB) 29 (7), pp. 4182-4184.

Morgenstern, Ingo (1984) Numerical simulations of modulated systems. Physical Review B (PRB) 29 (3), pp. 1458-1461.

1983

Morgenstern, Ingo and Binder, Kurt (1983) Comment on "Canonical-ensemble results for the Ising model with random bonds in two dimensions". Physical Review B (PRB) 27 (9), pp. 5826-5828.

Morgenstern, Ingo (1983) Long-time behavior of spin-glasses at low temperatures. Physical Review B (PRB) 27 (7), pp. 4522-4525.

Morgenstern, Ingo (1983) Numerical simulations of spin glasses. Lecture notes in physics 192, pp. 305-327.

1982

Morgenstern, Ingo (1982) Analytic solution of a new axial-next-nearest-neighbor model. Physical Review B (PRB) 26 (9), pp. 5296-5299.

van Hemmen, J. L. and Morgenstern, Ingo (1982) On sampling of Monte Carlo data and disordered systems. Journal of Physics C: Solid State Physics 15 (20), pp. 4353-4365.

Morgenstern, Ingo (1982) Magnetization of spin-glasses in applied magnetic field at low temperatures. Physical Review B (PRB) 25 (9), pp. 6067-6070.

Morgenstern, Ingo (1982) Phase transition in the ±J Ising-spin-glass model. Physical Review B (PRB) 25 (9), pp. 6071-6073.

Morgenstern, Ingo and Horner, H. (1982) Finite energy barriers in the random-bond Ising model. Physical Review B (PRB) 25 (1), pp. 504-507.

Morgenstern, Ingo (1982) Explanation of the freezing temperature in spin glasses. Journal of Applied Physics 53 (11), pp. 7682-7683.

1981

Morgenstern, Ingo and Binder, K. (1981) Two-dimensional Ising model in random magnetic fields. Physical Review B (PRB) 23 (1), pp. 287-297.

Morgenstern, Ingo (1981) Numerically exact solvable random-bond Ising model. Zeitschrift für Physik B; Condensed matter 41 (2), pp. 147-151.

Morgenstern, Ingo (1981) Phase transition in an Ising-spinglass-model including next-nearest-neighbor-interaction? Zeitschrift für Physik B: Condensed matter 42 (1), pp. 23-26.

Morgenstern, Ingo (1981) Site dilution in the fully frustrated triangular lattice in two dimensions. Zeitschrift für Physik B; Condensed matter 43 (1), pp. 33-36.

1980

Morgenstern, Ingo and Binder, K. (1980) Magnetic correlations in three-dimensional ising spin glasses. Zeitschrift für Physik: B, Condensed matter 39 (3), pp. 227-232.

Morgenstern, Ingo and Binder, K. (1980) Magnetic correlations in two-dimensional spin-glasses. Physical Review B (PRB) 22 (1), pp. 288-303.

1979

Morgenstern, Ingo and Binder, K. (1979) Evidence Against Spin-Glass Order in the Two-Dimensional Random-Bond Ising Model. Physical Review Letters (PRL) 43 (21), pp. 1615-1618.

1978

Morgenstern, Ingo and Binder, Kurt and Baumgärtner, Arthur (1978) Statistical mechanics of Ising chains in random magnetic fields. The Journal of Chemical Physics 69 (1), pp. 253-262.

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