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Scientific Papers

Most of my recent papers are also available via the preprint server arXiv: quant-ph (Los Alamos). Please note that the downloadable papers are intended as a scientific ressource for private use.

[→ Scientific Papers (PDF)]

  1. Über automorphe Funktionen mehrerer Veränderlicher. Diploma thesis, Universität Leipzig, 1954.

  2. Normierte Divisorfunktionen. PhD thesis, Universität Leipzig, 1957.

  3. Über den Begriff der Energie bei gekrümmter Raum- Zeit-Mannigfaltigkeit. Habilitation thesis, Universität Jena, 1960. Wiss. Z. Friedrich-Schiller-Univ. Jena, Math.-Nat.R. 9 (1959/60) 459-489. [PDF]

  4. Zur zweiten Quantelung bei symmetrischer Statistik. Wiss. Z. Friedrich-Schiller-Univ. Jena, Math.-Nat.R. 7 (1957/58) 115-122. [PDF]

  5. Gemischte Differentiale und die Theorie von HODGE auf nicht notwendig orientierbaren Mannigfaltigkeiten. Wiss. Z. Friedrich-Schiller-Univ. Jena, Math.-Nat.R. 8 (1958/59) 31-35. [PDF]

  6. Gemischte Differentiale und das Transformationsverhalten einiger Feldgleichungen. Wiss. Z. Friedrich-Schiller-Univ. Jena, Math.-Nat.R. 8 (1958/59) 247-252. [PDF]

  7. Das Rechnen mit alternierenden Differentialformen. Wiss. Z. Friedrich-Schiller-Univ. Jena, Math.-Nat.R. 8 (1958/59) 351-355. [PDF]

  8. Über Quantentheorien mit indefiniter Metrik. Wiss. Z. Friedrich-Schiller-Univ. Jena, Math.-Nat.R. 8 (1958/59) 361-366. [PDF]

  9. Schema einer Quantenmechanik mit indefiniter Metrik. Nucl. Phys. 9 (1958/59) 588-595. [PDF]

  10. Über den Begriff der Energie bei gekrümmter Raum- Zeit-Mannigfaltigkeit. Vorläufige Mitteilung. Wiss. Z. Friedrich-Schiller-Univ. Jena, Math.-Nat.R. 9 (1959/60) 67-70. [PDF]

  11. Untersuchungen über Quantentheorien mit indefiniter Metrik. Nucl. Phys. 12 (1959) 103. [PDF]

  12. Zur Lokalisierung der Energie in der Allgemeinen Relativitätstheorie. Acta Phys. Pol. 19 (1960) 133-138. [PDF]

  13. Zum Aufbau der Relativitätstheorie nach Alexandrow. In: Naturwissenschaft und Philosophie. Akademie-Verlag, Berlin 1960, 243 - 251. [PDF]

  14. Bemerkung über die Darstellung der Gruppe der Raum-Zeit- Translationen im Heisenberg-Bild. In: 6. Internationale Arbeitstagung über die Physik hoher Energien, Weimar 1960. (U. Krecker ed.), Zeuthen 1960, p. 135. [PDF]

  15. Über eine Klasse dynamischer Größen. Acta Phys. Hung. 13 (1961) 75-88. [PDF]

  16. Spectral Integral for the Representation of the Space-Time Translation Group in Relativistic Quantum Theory. Ann. of Phys. 13 (1961) 453-462. [PDF]

  17. Über die Definition der Quantenfelder nach Wightman und Haag. Wiss. Z. Karl-Marx-Univ. Leipzig, Math.-Nat.R. 11 (1962), 213-217. [PDF]

  18. Remark on the Future Tube. Acta Phys. Pol. 24 (1963) 293. [PDF]

  19. The Closure of Minkowski Space. Acta Phys. Pol. 24 (1963) 295 - 296. [PDF]

  20. Kausalität und Physik. Wiss. Z. Humboldt-Univ. zu Berlin, Math.-Nat. 12 (1963) 383-385. [PDF]

  21. Über die Algebra der Feldoperatoren (Teil 1). Preprint des Theor.-Phys. Inst. Leipzig, TUL 3, 9/1963. [PDF]

  22. Remark on Number Operators in Axiomatic Quantum Field Theory. Preprint des Theor.-Phys. Inst. Leipzig, TUL 7, 5/1964. [PDF]

  23. Some elementary properties of Haag rings. Preprint des Theor.-Phys. Inst. Leipzig, TUL 8, 5/1964. [PDF]

  24. Observables. Karpacz Winter School for Theoretical Physics 1964, Preprint Wroclaw University 3/71, Wroclaw 1964, 1-17. [PDF]

  25. Bemerkungen zu einem Satz von Reeh und Schlieder. Wiss. Z. Friedrich-Schiller-Univ., Math.-Nat. R., 2 (1964) 235. [PDF]

  26. Something About SU(6). Wroclaw University, Mimeographed Lecture Notes of the 2nd Winter School of Theoretical Physics, Vol. 2, 1965, and Preprint Theor.-Phys. Inst. Leipzig, TUL 12, 5/1965. [PDF]

  27. Recent Developments in Axiomatic Quantum Field Theory. Proc. of the Karpacz Winter School 1964.

  28. Ein Blick auf einige Ergebnisse der axiomatischen Quantenfeldtheorie. Wiss. Z. Karl-Marx-Univ. Leipzig, Math.-Nat. R. 14 (1965) 785-787. [PDF]

  29. Über die Wightman-Konstruktion. Publ. Univ. Krakow, 1965. [PDF]

  30. On the General Structure of an Operator which is Multiplicative with respect to a Symmetry Group. Publ. JINR, Dubna, USSR, E - 2542, (1966) 1 - 5. [PDF]

  31. SU(6) and the Operators CPT and C. Publ. JINR, Dubna, USSR, E - 2545 (1966) 1-9. [PDF]

  32. Plus Parity Mesons and the 189-plet of SU(6). Publ. JINR, Dubna, USSR, E - 2557 (1966) 1-9. [PDF]
    With D. Robaschik

  33. Calculation of the Coeffizients of the Mass Operators. Publ. JINR, Dubna, USSR, E - 2771 (1966) 1-11. [PDF]
    With D. Robaschik

  34. 189/W and Meson Decays. Publ. JINR, Dubna, USSR, E2 - 3102 (1966) 1-20. [PDF]
    With D. Robaschik

  35. Faithful Representations of Algebras of Test Functions. Publ. JINR, Dubna, USSR, E2 - 3583 (1967) 1-9. [PDF]
    With G. Laßner

  36. Group structure containing the Poincaré-group and admitting representations with non-degenerate mass-spectrum. Proc. of the Yalta School, Kiev 1967.

  37. Group structure with intrinsic mass splitting. In: Hochenergiephysik und Elementarteilchentheorie (in Russian), Naukova Dumka, Kiev 1967, p. 313 - 317. [PDF]

  38. On Positive Functionals on the Algebra of Test Functions. Acta Universitas Wratislaviensis 99 (1968) 64-83. [PDF]
    With G. Laßner

  39. On Positive Functionals on the Algebra of Test Functions. Commun. Math. Phys. 7 (1968) 152-159. [PDF]
    With G. Laßner

  40. Attempt to Construct Test Algebras for Haag-Araki Fields. Acta Universitas Wratislaviensis 99 (1968) 243-270. [PDF]

  41. On Multiplicative Properties of the Algebra of Test-Functions. Preprint des Theor.-Phys. Inst. Leipzig, TUL 22, 1967. [PDF]

  42. On formal crossing. In: Topics in Elementary Particle Physics. Proceedings of the International Seminar on Elementary Particle Theory, Varna 1968, 75-78. [PDF]

  43. Spectral sum rules for the two-point-functions and formfactors. In: Topics in Elementary Particle Physics. Proceedings of the International Seminar on Elementary Particle Theory, Varna 1968, 394-400. [PDF]
    With D. Robaschik

  44. On the Shannon Entropy and Related Functionals on Convex Sets. Rep. Math. Phys. 1 (1970) 147 - 159. [PDF]

  45. States on *-algebras. Proc. Int. Conf. on Nonlocal Quantum Field Theory. Asau, USSR.

  46. Some General Properties of *-Algebra Representations. Acta Universitatis Wratislaviensis 164 (1971) 122-138. [PDF]

  47. Sätze über Dichtematrizen. Wiss. Z. Karl-Marx-Univ. Leipzig, Math.-Nat. R. 20 (1971) 633 - 637. [PDF]

  48. Some Properties of the Future Tube. Preprint KMU - HEP - 7209 (1972), 1-14. [PDF]

  49. Endlich-dimensionale Dichtematrizen I. Wiss. Z. Karl-Marx-Univ. Leipzig, Math.-Nat. R., 21 (1972), 421-452. [PDF]

  50. Einige mathematische Strukturen in der Elementarteilchentheorie. In: Wissenschaftliche Haupttagung der Mathematischen Gesellschaft, Vortragsauszüge, Dresden 1972, 252 -256. [PDF]

  51. The Mixture of States. Karpacz Winter School 1973.

  52. Endlich-dimensionale Dichtematrizen II. Wiss. Z. Karl-Marx-Univ. Leipzig, Math.-Nat. R. 22 (1973) 139 - 177. [PDF]

  53. Properties of the Algebra L+(D). Publ. JINR, Dubna, USSR, E2 - 8149 (1974) 3 - 13. [PDF]

  54. Bericht über kürzlich bewiesene Entropieungleichungen. In: Tagungsband Arbeitstagung "Statistische Physik" (Physik. Ges. DDR, Herausg.), Berlin 1974, 203-218. [PDF]

  55. An Introduction to the Algebraic Appoach to some Problems of Theoretical Physics. Série des cours et conf. sur la physique des hautes énergies, CRN Strasbourg, 1974, 1-33. [PDF]

  56. Unitarily Invariant Convex Functions on the State Space of Type I and Type III von NEUMANN Algebras. Rep. Math. Phys. 7 (1975) 449 -456. [PDF]

  57. The "Transition Probability" in the State Space of a *-Algebra. Rep. Math. Phys. 9 (1976) 273 - 279. [PDF]

  58. The general Ising model Rep. Math. Phys. 10 (1976) 285 - 391.

  59. On some generalizations of the Griffiths inequalities (in Russian). Teor. i. Math. Fiz. (Moskau) 26 (1976) 141. [PDF]

  60. Zur Beschreibung irreversibler Quantenprozesse. Sizungsber. AdW DDR 14 N (1976) 1-25. [PDF]

  61. Relative Entropy and the Wigner-Yanase-Dyson-Lieb Concavity in an Interpolation Theory. Comm. Math. Phys. 54 (1977) 21-32. [PDF]

  62. Markov Master Equation and the Behaviour of some Entropy-like Quantities. (siehe auch: Rostocker Physikalische Manuskripte, Heft 2, 1977, 45 - 54.) In: Proc. Int. Coll. on the Role of Mathematical Physics in the Development of Science. Unesco / College de France, Paris 1977, 160-171. [PDF]

  63. Some Properties of Quantum Entropy. In: Proc. of the III-rd School of Elementary Particles and High Energy Physics. Primorske, Bulgaria, 1977, 425-427. [PDF]

  64. On op-Algebras of Unbounded Operators. Proc. of the Steklov Institute of Mathematics, Bd I, Moscow, 1978, 213-228 (also: Trudy Mat. Inst. Steklov 135 (1975)). [PDF]
    With G. Laßner

  65. The Order Structure of States. In: Trudy Mezdunarodny Simpoziuma po Izbranym Problemam Statisticeskoi Mechaniki. Publ. JINR, D 17 - 11490, Dubna 1978, 151 - 161. [PDF]

  66. Ordnungsstrukturen im Raume der gemischten Zustände und die H-Theoreme von Felderhof - van Kampen. Wiss. Z. Karl-Marx-Univ. Leipzig, Math.-Nat. R., 27 (1978) 213-228. [PDF]

  67. H-Theoreme für die Fokker-Planck-Gleichung. Wiss. Z. Karl-Marx-Univ. Leipzig, Math. Nat. R. 27 (1978) 229-234. [PDF]
    With B. Crell and T. de Paly

  68. The Order Structure of States in C*- and W*-Algebras. In: Proc. Int. Conf.on Operator Algebras, Ideals and their Applications in Theoretical Physics. Teubner Texte zur Mathematik. BSB B. G. Teubner Verlagsges., Leipzig 1978, 126-135. [PDF]
    With P. M. Alberti

  69. On Entropy in Quantum Statistics. In: Problems of Theoretical and Mathematical Physics. Publ. JINR D-12831, Dubna 1979, 439-447. [PDF]

  70. On Quantization in Curved Space Time. In: Proc. Second Conf. on High Energy Physics and Quantum Field Theory. Publ. IFWE, Protvino 1979, 3-17.

  71. Das wissenschaftliche Erbe Albert Einsteins. In: Leipziger Universitätsreden. Neue Reihe, 22 (1979) 11-19. [PDF]

  72. Some Remarks on Reflection Positivity. Czech. J. Phys. B 29 (1979), 117-126. [PDF]

  73. An Example of a Non-Linear Evolution Equation showing "Chaos-Enhancement". Lett. Math. Phys. 3 (1979), 463-465. [ PDF]
    With B. Crell

  74. Quantization Method using Dirichlet's Principle. In: 9-th Int. Conf. on General Relativity and Gravitation. Abstract Vol.III, Jena 1980, 595-596. [PDF]

  75. Existence and Density Theorems for Stochastic Maps on Commutative C*-Algebras. Math. Nach. 97 (1980), 279-295. [PDF]
    With P.M. Alberti

  76. Remarks on the Relation between Quantum and Classical Entropy as Proposed by A. Wehrl. Rep. Math. Phys. 18 (1980), 177-182. [PDF]

  77. A Problem Relating to the Positive Linear Maps on a Matrix Algebra. Rep. Math. Phys. 18 (1980), 163-176. [PDF]
    With P.M. Alberti

  78. On a Riemannian Method in Quantum Theory about Curved Space-Time. Czech. J. Phys. B 31 (1981), 1249-1255. [PDF]

  79. Die Charakterisierung der Lösungen von Mastergleichungen, ein inverses Problem. Ann. Physik (Leipzig), 38 (1981) 329-333. [PDF]
    With P.M. Alberti

  80. A Note on Stochastic Dynamics in the State Space of a Commuting C*-Algebra. J. Math. Phys. 22 (1981), 2345-2351. [ PDF]
    With P.M. Alberti

  81. DISSIPATIVE MOTION IN STATE SPACES. Teubner-Texte zur Mathematik 39. BSB B. G. Teubner Verlagsgesellschaft, Leipzig 1981. [Preface/Contents - PDF]
    With P.M. Alberti

  82. STOCHASTICITY AND PARTIAL ORDER. Mathematische Monographien (H. Koch, G. Laßner, H. Reichardt, R. Sulanke, Herausg.), VEB Deutscher Verlag der Wisenschaften, Berlin, 1981.
    With P.M. Alberti

  83. STOCHASTICITY AND PARTIAL ORDER. Mathematics and Its Applications 9, (M. Hazewinkel, Editor.), VEB Deutscher Verlag der Wissenschaften, Berlin, and Reidel Publ. Company, Dordrecht, Boston, London, 1982. [Contents/Introduction - PDF]
    With P.M. Alberti

  84. On Stochastic Maps of C*-Algebraic State Spaces. In: Ergodic Theory and Related Topics (H. Michel, ed.), Akademie-Verl., Berlin, 1982, 185-193. [PDF]

  85. Riemannian Method in Quantum Field Theory about Curved Space-time. Czech. J. Phys. B 32 (1982), 573 - 574. [PDF]

  86. Stochastic Linear Maps and Transition Probability Lett. Math. Phys. 7 (1983) 107-112. [PDF]
    With P.M. Alberti

  87. On Associative Algebras of Superfunctions. In: Quantum Theory of Particles and Fields (J. Janciewicz, J. Lukerski, eds.). World Scientific, Singapore, 1983, 188-200. [PDF]

  88. Transition Probabilities on W*- and C*-Algebras. In: Proc. Sec. Int. Conf. on Operator Algebras, Ideals, and their Applications in Theor. Physics. (H. Baumgärtel, G. Laßner, A. Pietsch, A. Uhlmann, eds.), Teubner Texte zur Mathematik 67, BSB B. G. Teubner-Verl., Leipzig 1984, 5-11. [PDF]
    With P.M. Alberti

  89. The Cartan Algebra of Exterior Differential Forms as a Supermanifold: Morphisms and Manifolds Associated with them. J. Geom. Phys. 1 (1984) 25-37. [PDF]

  90. The Transition Probability for States of *-Algebras. Ann. Physik (Leipzig) 42 (1985) 524-532. [PDF]

  91. Eine Bemerkung über vollständig positive Abbildungen von Dichteoperatoren. Wiss. Z. Karl-Marx-Univ. Leipzig, Math.-Naturwiss. R. 34 (1985) 580 - 582. [PDF]

  92. Die Cartan-Algebra der äußeren Differentialformen als Supermannigfaltigkeit: Jordan-Automorphismen und ihre Realisierung als Diffeomorphismen. Z. f. Analysis u.i. Anwendungen 4 (1985) 481 -492. [PDF]

  93. Parallel Transport and Quantum Holonomy along Density Operators. Rep. Math. Phys. 24 (1986) 229-240. [PDF]

  94. Parallel Transport and Holonomy along Density Operators. In: Differential Geometric Methods in Theoretical Physics. Proc. of the XV DGM Conference ( H. D. Doebner and J. D. Hennig, eds.), World Scientific, Singapore, 1987, 246-254. [PDF]

  95. Klein Gordon Equations on a Time Lattice. Ann. Physik (Leipzig) 45 (1988) 605 - 613. [PDF]
    With N. Hamdan

  96. On Berry Phases Along Mixtures of States. Ann. Physik (Leipzig) 46 (1989) 63 - 69. [PDF]

  97. Schrödinger und seine Gleichung. Sitzungsber. Sächsische Akad. Wiss. zu Leipzig, Math.-Nat. Klasse, Bd. 121, Heft 3 (1989) 1-23. [PDF]

  98. On the Use of Associative Algebras in Differential Geometry. In: Lectures on Supermanifolds, Geometrical Methods and Conformal Groups (H.D.Doebner, J.D.Hennig, T.D.Palev, eds.). World Scientific, Singapore, 1989. [PDF]

  99. Über Klein-Gordon-Teilchen bei Robertson-Walker-Metrik. Wiss. Z. Friedrich-Schiller-Univ., Jena, Math.Nat.R. 39 (1990) 124-128. [PDF]

  100. Gauge Field Governing Parallel Transport along Mixed States. Lett. Math. Phys. 21 (1991) 229-236. [PDF]

  101. Algebra and Geometry in the Theory of Mixed States. In: Symmetry in Physics V (B. Gruber ed.). Plenum Publ. Corporation, New York 1991, 565-583. [PDF]

  102. Parallel Transport of Phases. In: Differential Geometry, Group Representation, and Quantization (J.Hennig, W.Lücke, J.Tolar, eds.), Lecture Notes in Physics 379, Springer-Verlag, Berlin, New York, 1991, 55-72. [Preprint]

  103. An Energy Dispersion Estimate. Phys. Lett. A 161 (1992) 329 - 331. [PDF]

  104. The Metric of Bures and the Geometric Phase. In: Quantum Groups and Related Topics. Proceedings of the First Max Born Symposium (R. Gielerak et al., eds.), Kluwer Acad. Publishers, 1992, 267 - 274. [Preprint]

  105. JA oder NEIN - Ein wenig Quantenlogik. In: Werner Heisenberg, Physiker und Philosoph (B. Geyer, H. Herweg, H. Rechenberg, Herausg.). Spektrum Akad. Verl. Heidelberg, Berlin, Oxford, 1993, 165-171. [PDF]

  106. Klein-Gordon Particles in a Tube with a Piston. In: The Earth and the Universe. A Festschrift in honor of Hans-Jürgen Treder (W. Schröder, ed.). Interdivisional Commission on History of IAGA, Bremen 1993, 413-418. [PDF]

  107. The n-sphere as a quantal state space. In: Symposium on the Foundations of Modern Physics 1993 (P. Busch, P. Lahti, P. Mittelstaedt, eds.), World Scientific, Singapore, 1993, 390-397. [Preprint]

  108. Parallel lifts and holonomy along density operators: Computable examples using O(3)-orbits. In: Symmetry in Science VI: From the Rotation Group to Quantum Algebras (B. Gruber, ed.), Plenum Press, New York and London, 1993, 741-748.
    [Preprint]

  109. Density Operators as an Arena for Differential Geometry. Rep. Math. Phys. 33 (1993) 253 - 263. [PDF]

  110. On cyclic evolution of mixed states in two-level systems. In: Nonlinear, Dissipative, Irreversible Quantum Systems. Proceedings of the International Symposium on Mathematical Physics, Clausthal, August 1994 ( H.-D. Doebner, V.K. Dobrev & P. Nattermann, eds.), World Scientific, Singapore, 1995, 296 - 302. [Preprint]

  111. Spheres and Hemisphere as Quantum State Spaces. J. Geom. Phys. 18 (1996) 76-92. [PDF]

  112. Geometric phases and related structures. Rep. Math. Phys. 36 (1995) 461-481. [PDF]

  113. Decompositions of quantum states with respect to entropy. Rep. Math. Phys. 38 (1996) 123-141. [PDF]
    With F. Benatti and H. Narnhofer

  114. Optimizing entropy relative to a channel or a subalgebra. In: Group21. Proc. XXI Int. Coll. on Group Theoretical Methods in Physics (H. D. Doebner, P. Nattermann and W. Scherer, eds.), Vol. I, World Scientific, Singapore, 1997, 343 - 348. [quant-ph/9701014]

  115. Entropy and optimal decompositions of states relative to a maximal commutative subalgebra. Open Sys.& Inf. Dyn. 5 (1998) 209-227. [quant-ph/9704017]

  116. Einführung in Grundlagen und Protokolle der Quanteninformatik. Universität Leipzig, Zentrum für Höhere Studien. NTZ-Preprint 33/1998, S. 1-61. [PDF]
    With B. Crell

  117. Entanglement of Assistance. In: Quantum Computing and Quantum Communications. Proceedings of the 1st NASA Internatitional Conference on Quantum Computation and Quantum Communication (C. P. Williams, ed.), Springer-Verlag, Lecture Notes in Computer Science 509, 1999, 247-257. [quant-ph/9803033]
    With D.P. DiVincenzo, Ch.A. Fuchs, H. Mabuchi, J.A. Smolin and A. Thapliyal

  118. Optimal Decompositions with Respect to Entropy and Symmetries. Lett. Math. Phys. 47 (1999) 237-253. [PDF]
    With F. Benatti and H. Narnhofer

  119. Connections and metrics respecting purification of quantum states. J. Math. Phys. 40 (1999) 3246-3267. [PDF]
    With J. Dittmann

  120. On Bures-Distance and *-Algebraic Transition Probability between Inner Derived Positive Linear Forms over W*-Algebras. Acta Applicandae Mathematica 60 (2000) 1-37. [PDF]
    With P.M. Alberti

  121. Quantum channels of the Einstein-Podolski-Rosen kind. In: Theoretical Physics Fin de Siècle. Proceedings of the XII Max Born Symposium, Wroclaw 1998 (A. Borowiec, W. Cegla, B. Jancewicz, W. Karwowski eds.), Lecture notes in physics 539. Springer-Verlag, Berlin, 2000, 93-105. [quant-ph/9901027] [PDF]

  122. Operators and Maps Affiliated to EPR Channels. In: Trends in Quantum Mechanics (H.-D. Doebner, S. T. Ali, M. Keyl, R. F. Werner eds.). World Scientific, Singapore 2000. [PDF]

  123. Fidelity and Concurrence between conjugated states. Phys. Rev. A 62 (2000) 032307. [quant-ph/9909060] [PDF]

  124. "Partial" Fidelities. Rep. Math. Phys. 45 (2000) 407-418. [quant-ph/9912114] [PDF]

  125. Simultaneous decompositions of two states. Rep. Math. Phys. 46 (2000) 319-324. [quant-ph/0007018] [PDF]

  126. Das Plancksche Wirkungsquantum - Hundert Jahre danach. Sitzungsber. Leibniz-Sozietät, 42/7 (2000) 75-93. [Preprint]

  127. Partial Fidelities. In: Quantum Theory and Symmetries (H.D. Doebner, V.K. Dobrev, J.D. Hennig and W. Lücke, eds.). World Scientific, Singapore, 2000, 406-411. [PDF]

  128. On the LOCC Classification of Bipartite Density Matrices. [quant-ph/0011095]
    With P. Hayden and B.M. Terhal,

  129. On 1-qubit channels. J. Phys. A: Math. Gen. 34 (2001) 7074-7055. [quant-ph/0011106]

  130. Broken Symmetries in the Entanglement of Formation. J. Math. Phys. 44 (2003) 2402-2415. [quant-ph/0209081] [PDF]
    With F. Benatti and H. Narnhofer

  131. Antilinearity in bipartite quantum systems and imperfect quantum teleportation. In: Quantum Probability and Infinite-dimensional Analysis (W. Freudenberg, ed.) , Vol. 15, World Scientific, Singapore, 2003, 255-26. [quant-ph/0407244] [PDF]

  132. Quantum information transfer from one system to another one. In: Information Transfer and Combinatorics (R. Ahlswede et al, eds.). Lecture Notes in Computer Science 4123, Springer Verlag, Berlin, New York, 2006, 394-412. [quant-ph/0301116]

  133. Concurrence and Foliations Induced by Some 1-Qubit Channels. Int. J. Theor. Phys. 42 (2003) 983-999. [quant-ph/0301088] [PDF]

  134. Raum-Zeit und Quantenphysik. Sitzungsber. Leibniz-Sozietät, 61/5 (2003) 55-70; also in: Information Transfer and Combinatorics (R. Ahlswede et al, eds.), LN Computer Science 4123, Springer Verlag, 2006, 381-393. [Preprint]

  135. On Rank Two Channels. In: Information Transfer and Combinatorics (R. Ahlswede et al, eds.). Lecture Notes in Computer Science 4123, Springer Verlag, Berlin, New York, 2006, 413-424. [Preprint]

  136. On Concurrence and Entanglement of Rank Two Channels. Open Sys.& Inf. Dyn. 12 (2005) 93-106. [quant-ph/0605103] [PDF]

  137. Entangled three-qubit states without concurrence and three-tangle. Phys. Rev. Lett. 97 (2006) 260502. [quant-ph/0606071]
    With R. Lohmayer, A. Osterloh and J. Siewert

  138. Zwischen Ordnung und Unordnung. Leibniz Online 3/2007 (Leibniz-Sozietät, Berlin). [PDF]

  139. Order Structure (Majorization) and Irreversible Processes. In: Vernetzte Wissenschaften - Crosslinks in Natural and Social Sciences (P.J. Plath, E.-Chr. Haß, eds.). Logos Verlag, Berlin, 2008, 281-290. [Preprint]
    With P.M. Alberti, B. Crell and C. Zylka

  140. Geometry of state spaces. In: Entanglement and Decoherence (A. Buchleitner et al., eds.). Lecture Notes in Physics 768, Springer Verlag, Berlin, New York, 2009, 1-60. [Manuscript version]
    With B. Crell

  141. Tangles of superpositions and the convex-roof extension. Phys. Rev. A 77 (2008) 032310. [quant-ph/0710.5909]
    With A. Osterloh and J. Siewert

  142. Three-tangle for mixtures of generalized GHZ and generalized W states. New Journal of Physics 10 (2008) 043014. [quant-ph/0711.4477]
    With C. Eltschka, A. Osterloh and J. Siewert

  143. Concurrence of stochastic 1-qubit maps. [quant-ph/0802.2092]
    With M. Hellmund

  144. Über Zufall und Wahrscheinlichkeit. In: Synergie- Syntropie-Nichtlineare Systeme 7: Physik, Statistik, Information (W. Eisenberg et al., eds.). Leipziger Universitätsverlag, Leipzig, 2008, 29-36. [PDF]

  145. Sub- and super-fidelity as bounds for quantum fidelity. Quantum Information and Computation 9 (2009) 103-130. [quant-ph/0805.2037]
    With J.A. Miszczak, Z. Puchala, P. Horodecki and K. Zyczkowski

  146. An entropy inequality. Quantum Information and Computation 9 (2009) 622-627. [quant-ph/0812.0906]
    With M. Hellmund

  147. Concurrence and entanglement entropy of stochastic 1-qubit maps. Phys. Rev. A 79 (2009) 052319. [quant-ph/0903.1340]
    With M. Hellmund

  148. Transition Probability (Fidelity) and its Relatives. Found. Phys. 2010, DOI 10.1007/s10701-009-9381-y. [Preprint]

  149. Roofs and Convexity. Entropy 12 (2010) 1799-1832. [PDF]

  150. The Number of Orthogonal Conjugations. Acta Polytechnica 51 (2013) 470-472. [PDF]

  151. Anti-(Conjugate) Linearity. Science China Physics, Mechanics & Astronomy 59(3) (2016) 630301. [quant-ph/1507.06545]

  152. DIE GRAMMATIK DER QUANTENWELT. Quantenphysik - Zufall - Zustandsraum. Edition am Gutenbergplatz, Leipzig, 2017.


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Last update: March 14, 2017