101,740 research outputs found
The Chiral transition of N(f) = 2 QCD with fundamental and adjoint fermions
No full textEngels J, Holtmann S, Schulze T. The Chiral transition of N(f) = 2 QCD with fundamental and adjoint fermions. In: PoS LAT2005. 2006: 148
Specific heat and energy for the three-dimensional O(2) model
No full textHoltmann S, Schulze T, Engels J. Specific heat and energy for the three-dimensional O(2) model. Nucl. Phys. Proc. 2002;106(Suppl.):893-895
TRPV1-expressing sensory fibres and IBS: links with immune function
No full textP A Hughes, S M Brierley, C M Martin, T Liebregts, J Persson, B Adam, G Holtmann and L A Blacksha
Does doctors' knowledge of inflammatory bowel disease patients' psychological status affect patients' clinical outcomes: a pilot randomized controlled trial
No full textMikocka-Walus, Antonina A.; Turnbull, Deborah A.; Andrews, Jane M.; Moulding, Nicole T.; Wilson, Ian G. and Holtmann, Geral
Comparison of finite-size-scaling functions for 3d O(N) spin models to QCD
No full textSchulze T, Engels J, Holtmann S, Mendes T. Comparison of finite-size-scaling functions for 3d O(N) spin models to QCD. In: Nuclear Physics B - Proceedings Supplements. Nucl. Phys. Proc. Vol 106. ELSEVIER SCIENCE BV; 2002: 498-500.We calculate numerically universal finite-size-scaling functions of the magnetization for the three-dimensional O(4) and O(2) spin models. The approach of these functions to the infinite-volume scaling functions is studied in detail on the critical and pseudocritical lines. For this purpose we determine the pseudocritical line in two different ways. We find that the asymptotic form of the finite-size-scaling functions is already reached at small values of the scaling variable. A comparison with QCD lattice data for two flavours of staggered fermions shows a similar finite-size behaviour which is compatible with that of the spin models
Finite-size-scaling functions for 3d O (4) and O (2) spin models and QCD
No full textEngels J, Holtmann S, Mendes T, Schulze T. Finite-size-scaling functions for 3d O (4) and O (2) spin models and QCD. PHYSICS LETTERS B. 2001;514(3-4):299-308.We calculate numerically universal finite-size-scaling functions for the three-dimensional O(4) and O(2) models. The approach of these functions to the infinite-volume scaling functions is studied in detail on the critical and pseudocritical lines. For this purpose we determine the pseudocritical line in two different ways. We find that the asymptotic form of the finite-size-scaling functions is already reached at small values of the scaling variable. A comparison with QCD lattice data for two flavours of staggered fermions shows a similar finite-size behaviour which is compatible with that of the spin models. (C) 2001 Elsevier Science B.V. All rights reserved
Equation of state and Goldstone-mode effects of the three-dimensional O(2) model
No full textEngels J, Holtmann S, Mendes T, Schulze T. Equation of state and Goldstone-mode effects of the three-dimensional O(2) model. PHYSICS LETTERS B. 2000;492(1-2):219-227.We investigate numerically the three-dimensional O(2) model on 8(3)-160(3) lattices as a function of the magnetic field H. In the low-temperature phase we verify the H-dependence of the magnetization M induced by Goldstone modes and determine M for V --> infinity on the coexistence line both by extrapolation and by chiral perturbation theory. This enables us to calculate the corresponding critical amplitude. At T-c the critical scaling behaviour of the magnetization as a function of H is used to determine another critical amplitude. In both cases we find negative corrections-to-scaling. Our low-temperature results are well described by the perturbative form of the model's magnetic equation of state, with coefficients determined nonperturbatively from our data. The O(2) scaling function for the magnetization is found to have a smaller slope than the one for the O(4) model. (C) 2000 Elsevier Science B.V. All rights reserved
Letter, [Author unclear] to Paulina T. Merritt
No full textHandwritten letter to Paulina Merritt from an unknown author, October 1, 1876.
A numerical study of Goldstone-mode effects and scaling functions of the three-dimensional O(2) model
No full textEngels J, Holtmann S, Mendes T, Schulze T. A numerical study of Goldstone-mode effects and scaling functions of the three-dimensional O(2) model. In: Nuclear Physics B - Proceedings Supplements. Nucl. Phys. Proc. Suppl. Vol 94. ELSEVIER SCIENCE BV; 2001: 861-864.We investigate numerically the three-dimensional O(2) model on 8(3) - 160(3) lattices as a function of the magnetic field H. In the low-temperature phase we verify the H-dependence of the magnetization hi induced by the Goldstone modes and determine M in the thermodynamic limit on the coexistence line both by extrapolation and by chiral perturbation theory. We compute two critical amplitudes from the scaling behaviours on the coexistence line and on the critical line. In both cases we find negative corrections to scaling. With additional high temperature data we calculate the scaling function and show that it has a smaller slope than that of the O(4) model. For future tests of QCD lattice data we study as well finite-size-scaling functions
Bewährungsproben für die Unterschicht: Wirkungen aktivierender Arbeitsmarktpolitik
No full textBooth M, Dörre K, Haubner T, Marquardsen K, Scherschel K, Schierhorn K. Bewährungsproben für die Unterschicht: Wirkungen aktivierender Arbeitsmarktpolitik. In: Best H, Holtmann E, eds. Aufbruch der entsicherten Gesellschaft. Deutschland nach der Wiedervereinigung . Frankfurt a. Main: Campus; 2012: 347-368
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