Difference between revisions of "Christian Holm"

Revision as of 16:38, 10 September 2008

<setdata> title=PD Dr. status=Group leader phone=47505 room=2.301 email=holm _at_ fias.uni-frankfurt.de image=Christian_Holm.jpg </setdata>

[[Image:{{#data:image|No_photo.png}}|right|180px]] {{#data:status}}

As Christian Holm is not a member of our working group anymore, the information on this page might be outdated.

Research

My scientific interests are especially the study of complex charged soft matter by means of computer simulations, and the development of simple theoretical models to describe them. More precisely I am currently working on the solution properties and association behavior of flexible and semi-flexible polyelectrolytes in various solvents and under various salt concentrations and salt types. In addition I am interested in the effective pair interactions of charged colloidal particles and their phase behavior. This includes simple DNA models, and DNA protein interactions, as well as developing coarse grained models for DNA-Histone complexes. I also began investigations of ferrofluids, where special attention is given to the structure of the solution and the magnetic response functions. Another interest is the applicability of mean-field models for the description of models with long range interactions, and possible improvements beyond the mean-field approach. This include local density functional methods based on the Poisson-Boltzmann functional, as well as strong coupling theories such as Wigner-crystal methods. In addition I am interested in the development of fast methods for the computation of long range interactions. These include pure Coulomb as well as dipolar interactions in various geometries (3D-1D), and under various boundary conditions.

Publications

<1-- Publications only on Publications-Site!! the <pubentries> statement import the publications vrom Publications-Site -->

2008

2007

2006

2005

2004

Marcia C. Barbosa and Markus Deserno and Christian Holm and René Messina.
"Screening of spherical colloids beyond mean field: A local density functional approach".
Physical Review E 69(051401), 2004.
[PDF] (121 KB) [DOI]
Christian Holm.
"Efficient methods for long range interactions in periodic geometries plus one application".
In Computational Soft Matter: From Synthetic Polymers to Proteins, volume 23 of NIC series, pages 195–236. Editors: N. Attig and K. Binder and H. Grubmüller and K. Kremer,
Research Centre Jülich, 2004.
[PDF] (630 KB)
Christian Holm and Matthias Rehahn and Wilhelm Oppermann and Matthias Ballauff.
"Stiff-Chain Polyelectrolytes".
In Polyelectrolytes with Defined Molecular Architecture II, volume 166 of Advances in Polymer Science, pages 1–27. Editors: Schmidt, Manfred,
Springer Berlin Heidelberg, 2004.
[PDF] (530 KB) [DOI]
Holm, Christian and Joanny, Jean-Fran\ccois and Kremer, Kurt and Netz, Roland R. and Reineker, Peter and Seidel, Christian and Vilgis, Thomas A. and Winkler, Roland G..
"Polyelectrolyte Theory".
In Polyelectrolytes with Defined Molecular Architecture II, volume 166 of Advances in Polymer Science, pages 67–111. Editors: Schmidt, Manfred,
Springer Berlin Heidelberg, New York, 2004.
[PDF] (935 KB) [DOI]
J. P. Huang and Christian Holm.
"Magnetization of polydisperse colloidal ferrofluids: Effect of magnetostriction".
Physical Review E 70(061404), 2004.
[PDF] (101 KB) [DOI]
Ivanov, Alexey O. and Wang, Zuowei and Holm, Christian.
"Applying the Chain Formation Model to magnetic properties of aggregated ferrofluids".
Physical Review E 69(031206), 2004.
[PDF] (102 KB) [DOI]
Hans Jörg Limbach and Mehmet Sayar and Christian Holm.
"Polyelectrolyte Bundles".
Journal of Physics: Condensed Matter 16(22)(2135–2144), 2004.
[PDF] (262 KB) [Preprint] [DOI]
Hans Jörg Limbach and Christian Holm.
"Conformations and Solution Structure of Polyelectrolytes in Poor Solvent".
Polyelectrolytes , volume 9 of Dresdener Polymer Discussions 2003Editors: U. Scheler, , Dresden, Germany, 2004.
Wiley-VCH, Weinheim.
[DOI]
Vladimir Lobaskin and Burkhard Dünweg and Christian Holm.
"Electrophoretic mobility of a charged colloidal particle: A computer simulation study".
Journal of Physics: Condensed Matter 16(38)(S4063–S4073), 2004.
[PDF] (312 KB) [Preprint] [DOI]
Bernward A. Mann and Ralf Everaers and Christian Holm and Kurt Kremer.
"Scaling in polyelectrolyte networks".
Europhysics Letters 67(5)(786–792), 2004.
[PDF] (261 KB) [DOI]
R. Messina.
"Effect of image forces on polyelectrolyte adsorption at a charged surface".
Physical Review E 70(5)(051802), 2004.
[PDF] (620 KB)
Ali Naji and Axel Arnold and Christian Holm and Roland R. Netz.
"Attraction and unbinding of like–charged rods".
Europhysics Letters 67(130–136), 2004.
[PDF] (142 KB) [DOI]

2003

Holm, Christian and Limbach, Hans Jörg and Kremer, Kurt.
"Poor-solvent polyelectrolytes".
Journal of Physics: Condensed Matter 15(1)(S205–S211), 2003.
[PDF] (262 KB) [DOI]
Jiménez-Ángeles, Felipe and Messina, René and Holm, Christian and Lozada-Cassou, Marcelo.
"Ion pairing in model electrolytes: A study via three-particle correlation functions".
The Journal of Chemical Physics 119(9)(4842-4856), 2003.
[PDF] (522 KB) [Preprint] [DOI]
Hans Jörg Limbach and Christian Holm.
"Single-Chain Properties of Polyelectrolytes in Poor Solvent".
Journal of Physical Chemistry B 107(32)(8041–8055), 2003.
[PDF] (403 KB) [DOI]
René Messina and Christian Holm and Kurt Kremer.
"Polyelectrolyte Multilayering in Spherical Geometry".
Langmuir 19(4473–4482), 2003.
[PDF] (963 KB) [Preprint]
Zuowei Wang and Christian Holm and Hanns Walter Müller.
"Boundary condition effects in the simulation study of equilibrium properties of magnetic dipolar fluids".
The Journal of Chemical Physics 119(379), 2003.
[PDF] (175 KB) [DOI]
Zuowei Wang and Christian Holm and Hanns Walter Müller.
"Computer simulation study of equilibrium properties of magnetic dipolar fluids".
Magnetohydrodynamics 39(1)(59–64), 2003.
Zuowei Wang and Christian Holm.
"Structure and magnetization properties of polydispersed ferrofluids: A molecular dynamics study".
Physical Review E 68(041401), 2003.
[PDF] (419 KB)

2002

Axel Arnold and Christian Holm.
"MMM2D: A fast and accurate summation method for electrostatic interactions in 2D slab geometries".
Computer Physics Communications 148(3)(327–348), 2002.
[PDF] (3 MB) [Preprint] [DOI]
Axel Arnold and Christian Holm.
"A novel method for calculating electrostatic interactions in 2D periodic slab geometries".
Chemical Physics Letters 354(324–330), 2002.
[PDF] (425 KB) [DOI]
Arnold, Axel and de Joannis, Jason and Holm, Christian.
"Electrostatics in Periodic Slab Geometries I".
The Journal of Chemical Physics 117(2496–2502), 2002.
[PDF] (217 KB) [Preprint] [DOI]
Arnold, Axel and de Joannis, Jason and Holm, Christian.
"Electrostatics in Periodic Slab Geometries II".
The Journal of Chemical Physics 117(2503–2512), 2002.
[PDF] (267 KB) [Preprint] [DOI]
Jason de Joannis and Axel Arnold and Christian Holm.
"Electrostatics in Periodic Slab Geometries II".
The Journal of Chemical Physics 117(2503–2512), 2002.
[PDF] (318 KB) [DOI]
Markus Deserno and Christian Holm.
"Theory and simulations of rigid polyelectrolytes".
Molecular Physics 100(18)(2941–2956), 2002.
[Preprint] [DOI]
Holm, Christian and Kremer, Kurt and Deserno, Markus and Limbach, Hans Jörg.
"Computer Modeling of Charged Polymers".
In NIC Symposium 2001, volume 9 of NIC Series, Vol. 9, pages 385–395. Editors: H. Rollnik and D. Wolf,
John von Neumann Institute for Computing, Jülich, Germany, 2002.
[PDF] (668 KB)
Hans Jörg Limbach and Christian Holm.
"Conformational properties of poor solvent polyelectrolytes".
Computer Physics Communications 147(321–324), 2002.
[Preprint] [DOI]
Hans Jörg Limbach and Christian Holm and Kurt Kremer.
"Structure of polyelectrolytes in poor solvent".
Europhysics Letters 60(4)(566–572), 2002.
[PDF] (168 KB) [Preprint] [DOI]
René Messina and Christian Holm and Kurt Kremer.
"Conformation of a Polyelectrolyte Complexed to a Like-Charged Colloid".
Physical Review E 65(041805), 2002.
[PDF] (163 KB) [Preprint] [DOI]
René Messina and Christian Holm and Kurt Kremer.
"Like-charge colloid-polyelectrolyte complexation".
The Journal of Chemical Physics 117(2947), 2002.
[Preprint] [DOI]
Messina, René and González Tovar, Enrique and Lozada-Cassou, Marcelo and Holm, Christian.
"Overcharging: The Crucial Role of Excluded Volume".
Europhysics Letters 60(383–389), 2002.
[PDF] (148 KB) [Preprint] [DOI]
René Messina and Christian Holm and Kurt Kremer.
"Charge inversion in colloidal systems".
Computer Physics Communications 147(282–285), 2002.
[Preprint] [DOI]
Wang, Zuowei and Holm, Christian and Müller, Hanns Walter.
"Molecular dynamics study on the equilibrium magnetization properties and structure of ferrofluids".
Physical Review E 66(021405), 2002.
[PDF] (849 KB) [Preprint] [DOI]

2001

Markus Deserno and Christian Holm and Kurt Kremer.
"Molecular dynamics simulations of the cylindrical cell model".
In Physical Chemistry of Polyelectrolytes, volume 99 of Surfactant science series, chapter 2, pages 59–110. Editors: T. Radeva,
Marcel Decker, New York, 2001.
Markus Deserno and Christian Holm and Jürgen Blaul and Matthias Ballauff and Matthias Rehahn.
"The Osmotic Coefficient of Rod-like Polyelectrolytes: Computer Simulation, Analytical Theory, and Experiment".
European Physical Journal E 5(97–103), 2001.
[PDF] (147 KB) [DOI]
Markus Deserno and Felipe Jiménez-Ángeles and Christian Holm and Marcelo Lozada-Cassou.
"Overcharging of DNA in the presence of salt: Theory and Simulation".
The Journal of Physical Chemistry B 105(44)(10983–10991), 2001.
[PDF] (143 KB) [Preprint] [DOI]
Markus Deserno and Christian Holm.
"Cell-model and Poisson-Boltzmann-theory: A brief introduction".
In Electrostatic Effects in Soft Matter and Biophysics, volume 46 of NATO Science Series II - Mathematics, Physics and Chemistry, pages 27–50. Editors: C. Holm and P. Kékicheff and R. Podgornik,
Kluwer Academic Publishers, Dordrecht, Nl, 2001.
[PDF] (262 KB) [DOI]
Christian Holm and Kurt Kremer.
"Computer Simulations of Charged Systems".
In Electrostatic Effects in Soft Matter and Biophysics, volume 46 of NATO Science Series II - Mathematics, Physics and Chemistry. Editors: C. Holm and P. Kékicheff and R. Podgornik,
Kluwer Academic Publishers, Dordrecht, Nl, 2001.
[DOI]
Christian Holm.
"What can Ising spins teach us about Quantum Gravity?".
In Fluctuating Paths and Fields, pages 707–720. Editors: A. Pelster and M. Bachmann and W. Janke,
World Scientific, Singapore, 2001.
[DOI]
Hans Jörg Limbach and Christian Holm.
"End-effects of strongly charged polyelectrolytes - a molecular dynamics study".
The Journal of Chemical Physics 114(21)(9674–9682), 2001.
[DOI]
René Messina and Christian Holm and Kurt Kremer.
"Effect of colloidal charge discretization in the primitive model".
European Physical Journal E 4(363–370), 2001.
[PDF] (250 KB) [Preprint] [DOI]
René Messina and Christian Holm and Kurt Kremer.
"Strong electrostatic interactions in spherical collidal systems".
Physical Review E 64(021405), 2001.
[PDF] (2 MB) [Preprint] [DOI]
Wang, Zuowei and Holm, Christian.
"Estimate of the Cutoff Errors in the Ewald Summation for Dipolar Systems".
The Journal of Chemical Physics 115(6351), 2001.
[PDF] (2 MB) [DOI]

2000

Marcia C. Barbosa and Markus Deserno and Christian Holm.
"A stable local density functional approach to ion-ion correlations".
Europhysics Letters 52(1)(80–86), 2000.
[PDF] (147 KB) [Preprint] [DOI]
Markus Deserno and Christian Holm and Sylvio May.
"Fraction of Condensed Counterions around a Charged Rod: Comparison of Poisson-Boltzmann Theory and Computer Simulations".
Macromolecules 33(199–206), 2000.
[PDF] (98 KB) [Preprint] [DOI]
René Messina and Christian Holm and Kurt Kremer.
"Strong attraction between charged spheres due to metastable ionized states".
Physical Review Letters 85(872–875), 2000.
[PDF] (155 KB) [DOI]
René Messina and Christian Holm and Kurt Kremer.
"Ground state of two unlike charged colloids: An anology with ionic bonding".
Europhysics Letters 51(461–467), 2000.
[PDF] (246 KB) [DOI]

1999

Christian Holm and Kurt Kremer.
"Polyelectrolytes in Solution - Recent Computer Simulations".
Proceedings of Yamada Conference ``Polyelectrolytes'', Inuyama, Japan , pages 27–36, Editors: I. Noda and E. Kokufuta, , Osaka, Japan, 1999.
Yamada Science Foundation.
[PDF] (214 KB) [Preprint]
Christian Holm and Wolfhard Janke.
"Simplicial Quantum Gravity on a Randomly Triangulated Sphere".
International Journal of Modern Physics A 14(24)(3885–3903), 1999.
[DOI]
Elmar Bittner and A. Hauke and Harald Markum and J. Riedler and Christian Holm and Wolfhard Janke.
"Lattice Models of 2D-Quantum Gravity".
Proceedings of the Eigth Marcel Grossmann Meeting , pages 769, Editors: Tsvi Piran and Remo Ruffini, , The Hebrew University, Jerusalem, Israel, June 22 - 27, 1997, 1999.
World Scientific Publishers.
Elmar Bittner and A. Hauke and Christian Holm and Wolfhard Janke and Harald Markum and J. Riedler.
"$Z_2$-Regge versus Standard Regge Calculus in Two Dimensions".
Physical Review D 59(124018), 1999.
[PDF] (208 KB) [DOI]
Uwe Micka and Christian Holm and Kurt Kremer.
"Strongly Charged, Flexible Polyelectrolytes in Poor Solvents - A Molecular Dynamics Study".
Langmuir 15(12)(4033-4044), 1999.
[PDF] (2 MB) [Preprint] [DOI]

1998 and before

Christian Holm.
"Anwendung von FFT Ewald Gitter-Methoden in Simulationen von Polyelektrolyten".
In Höchstleistungsrechnen in der Chemie, pages 67–69. Editors: R. Esser and J. Grotendorst and M. Lewerenz,
Research Center Jülich, Jülich, 1998.
Holm, Christian and Kremer, Kurt and Vilgis, Thomas A..
"Polyelektrolyte: Grundlegende Probleme bei der Beschreibung weitverbreiteter Substanzen".
Physikalische Blätter 54(11)(1013–1016), 1998.
[PDF] (2 MB) [DOI]
Elmar Bittner and A. Hauke and Christian Holm and Wolfhard Janke and Harald Markum and J. Riedler.
"Standard and $Z_2$-Regge Theory in two Dimensions".
Nuclear Physics B: Proceedings Supplements 63(1)(769-771), 1998.
[PDF] (221 KB) [DOI]
Elmar Bittner and A. Hauke and Christian Holm and Wolfhard Janke and Harald Markum and J. Riedler.
"Lattice Models of Quantum Gravity".
In Frontiers in Quantum Physics, pages 303. Editors: S. C. Lim and R. Abd-Shukor and K. H. Kwek,
Springer, Berlin, 1998.
[PDF] (117 KB)
Deserno, Markus and Holm, Christian.
"How to mesh up Ewald sums. I. A theoretical and numerical comparison of various particle mesh routines".
The Journal of Chemical Physics 109(7678), 1998.
[PDF] (307 KB) [DOI]
Deserno, Markus and Holm, Christian.
"How to mesh up Ewald sums. II. An accurate error estimate for the Particle-Particle-Particle-Mesh algorithm".
The Journal of Chemical Physics 109(7694), 1998.
[PDF] (200 KB) [DOI]
Christian Holm and Wolfhard Janke.
"Critical Exponents of the Classical Heisenberg Ferromagnet".
Physical Review Letters 78(2265), 1997.
FUB-HEP-96-8
[PDF] (53 KB) [DOI]
Christian Holm and Wolfhard Janke.
"Fixed Versus Random Triangulations in 2D Regge Calculus".
Physics Letters B 390(1)(59–63), 1997.
FUB-HEP-96-10
[PDF] (394 KB) [DOI]
Christian Holm.
"Influence of the Path Integral Measure in Quantum Gravity".
In Functional Integration: Basics and Applications, volume of NATO ASI Series B: Physics Vol. 361, pages 417. Editors: DeWitt-Morette, C. and Cartier, P. and Folacci, A.,
Plenum, New York, 1997.
[DOI]
Christian Holm and Wolfhard Janke and Tetsuo Matsui and Kazuhiko Sakakibara.
"Monte Carlo Study of Asymmetric 2D XY Model".
Physica A: Statistical Mechanics and its Applications 246(3)(633–645), 1997.
[PDF] (598 KB) [DOI]
Christian Holm and Wolfhard Janke.
"Measuring the String Susceptibility in 2D Simplicial Quantum Gravity Using the Regge Approach".
Nuclear Physics B 477(465–488), 1996.
FUB-HEP 17/95
[PDF] (2 MB) [DOI]
Christian Holm and Wolfhard Janke.
"Ising Spins on a Gravitating Sphere".
Physics Letters B 375(1)(69–74), 1996.
FUB-HEP 18/95
[PDF] (508 KB) [DOI]
Christian Holm.
"2D Non-Perturbative Euclidean Quantum Gravity via Regge Calculus".
1996.
unpublished
Christian Holm and Wolfhard Janke.
"Measure Dependence of 2D Simplicial Quantum Gravity".
Nuclear Physics B: Proceedings Supplements 42(1)(722–724), 1995.
FUB-HEP 20/94
[PDF] (215 KB) [DOI]
Christian Holm and Wolfhard Janke.
"The Ising Transition in 2D Simplicial Quantum Gravity – Can Regge Calculus be Right?".
Nuclear Physics B: Proceedings Supplements 42(1)(725–727), 1995.
FUB-HEP 19/94
[PDF] (236 KB) [DOI]
Christian Holm and Wolfhard Janke.
"Monte Carlo study of topological defects in the 3D Heisenberg model".
Journal of Physics A: Mathematical and General 27(7)(2553–2563), 1994.
FUB-HEP 10/93
[PDF] (504 KB) [DOI]
Christian Holm and Wolfhard Janke.
"The critical behaviour of Ising spins on 2D Regge lattices".
Physics Letters B 335(2)(143–150), 1994.
[PDF] (450 KB) [DOI]
Christian Holm and Wolfhard Janke.
"High Pecision Monte Carlo Determination of $\alpha/\nu$ in the 3D Classical Heisenberg Model".
International Journal of Modern Physics C 5(2)(267–270), 1994.
[DOI]
Christian Holm and Wolfhard Janke.
"High Precision Single-Cluster MC Measurement of the Critical Exponents of the Classical 3D Heisenberg Model".
Nuclear Physics B: Proceedings Supplements 30(846–849), 1993.
[PDF] (321 KB) [DOI]
Christian Holm and Wolfhard Janke.
"Finite-size scaling study of the three-dimensional classical Heisenberg model".
Physics Letters A 173(1)(8–12), 1993.
[PDF] (354 KB) [DOI]
Christian Holm and Wolfhard Janke.
"Critical exponents of the classical three-dimensional Heisenberg model: A single-cluster Monte Carlo study".
Physical Review B 48(2)(936–950), 1993.
[PDF] (3 MB) [DOI]
Joan Adler and Christian Holm and Wolfhard Janke.
"High-Temperature Series Analysis of the Classical Heisenberg and XY Model".
Physica A 201(4)(581–592), 1993.
[PDF] (969 KB) [DOI]
Holm, Christian and Hennig, Jörg D..
"A Poincaré Gauge Theory on Regge Simplexes".
Classical and Quantum Systems- Foundations and Symmetries, Proceedings of the II. International Wigner Symposium , pages 723–726, Editors: Doebner, H. D. and Scherer, W. and Schroeck, Jr., F., , 1991.
World Scientific.
[PDF] (31 MB)
Holm, Christian and Hennig, Jörg D..
"Regge Calculus with Torsion".
In Group Theoretical Methods in Physics, volume 382 of Lecture Notes in Physics, pages 556–560. Editors: Dodonov, V. V. and Man'ko, V. I.,
Springer, Berlin, Germany, 1991.
[PDF] (587 KB) [DOI]
Christian Holm.
"Differential Geometry, Gauge Theories, and Gravity".
1990.
book review
Christian Holm.
"Connections in Bergmann Manifolds".
International Journal of Theoretical Physics 29(1)(23–36), 1990.
[PDF] (726 KB) [DOI]
Finkelstein, David and Holm, Christian.
"Neutrino-Neutrino Scattering in Quantum Network Dynamics".
Bulletin of the American Physical Society 34(114), 1989.
Christian Holm.
"The Hyperspin Structure of Unitary Groups".
Journal of Mathematical Physics 29(4)(978–986), 1988.
[PDF] (2 MB) [DOI]
Christian Holm.
"Neutrino Spectrum of Einstein Universes".
Journal of Mathematical Physics 29(10)(2273–2279), 1988.
[PDF] (1015 KB) [DOI]
Christian Holm.
"The Hyperspin Structure of Einstein Universes and Their Neutrino Spectrum".
PhD thesis, Georgia Institute of Technology, 1987.
Finkelstein, David and Finkelstein, Shlomit Ritz and Holm, Christian.
"Hypergravitational Field Equations".
Physical Review Letters 59(1265–1266), 1987.
[PDF] (95 KB) [DOI]
Christian Holm.
"Christoffel Formula and Geodesic Motion in Hyperspin Manifolds".
International Journal of Theoretical Physics 25(11)(1209–1213), 1986.
[PDF] (574 KB) [DOI]
John Eidson and Sarah Flynn and Christian Holm and D. Weeks and Ronald F. Fox.
"Elementary Explanation of Boundary Shading in Chaotic-Attractor Plots for the Feigenbaum Map and the Circle Map".
Physical Review A 33(2809–2812), 1986.
[PDF] (3 MB) [DOI]
Finkelstein, David and Finkelstein, Shlomit Ritz and Holm, Christian.
"Hyperspin Manifolds".
International Journal of Theoretical Physics 25(4)(441–463), 1986.
[PDF] (4 MB) [DOI]
Christian Holm.
"Spinors in Discrete Space-Time".
Master's thesis, Georgia Institute of Technology, feb, 1985.

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 ==Publications==
+<1--
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+-->
 ===2008===