Paredes, B.; Widera, A.; Murg, V.; Mandel, O.; Fölling, S.; Cirac, J. I.; Shlyapnikov, G. V.; Hänsch, T. W.; Bloch, I.: Tonks-Girardeau gas of ultracold atoms in an optical lattice. Nature 429 (6989), pp. 277 - 281 (2004)

Tóth, G.: Entanglement detection in optical lattices of bosonic atoms with collective measurements. Physical Review A 69 (5), 052327 (2004)

Wolf, M. M.; Giedke, G.; Krüger, O.; Werner, R. F.; Cirac, J. I.: Gaussian entanglement of formation. Physical Review A 69 (5), 052320 (2004)

Jungreuthmayer, C.; Geissler, M.; Zanghellini, J.; Brabec, T.: Microscopic analysis of large-cluster explosion in intense laser fields. Physical Review Letters 92 (13), 133401 (2004)

Murg, V.; Cirac, J. I.: Adiabatic time evolution in spin systems. Physical Review A 69 (4), 042320 (2004)

Acin, A.; Cirac, J. I.; Masanes, L.: Multipartite bound information exists and can be activated. Physical Review Letters 92 (10), 107903 (2004)

Cirac, J. I.; Zoller, P.: New frontiers in quantum information with atoms and ions. Physics Today 57 (3), pp. 38 - 44 (2004)

Schuch, N.; Verstraete, F.; Cirac, J. I.: Nonlocal resources in the presence of superselection rules. Physical Review Letters 92 (8), 087904 (2004)

Verstraete, F.; Martín-Delgado, M. A.; Cirac, J. I.: Diverging entanglement length in gapped quantum spin systems. Physical Review Letters 92 (8), 087201 (2004)

Wolf, M. M.; Verstraete, F.; Cirac, J. I.: Entanglement frustration for Gaussian states on symmetric graphs. Physical Review Letters 92 (8), 087903 (2004)

Verstraete, F.; Popp, M.; Cirac, J. I.: Entanglement versus correlations in spin systems. Physical Review Letters 92 (2), 027901 (2004)

Garcia-Ripoll, J. J.; Cirac, J. I.; Zoller, P.; Kollath, C.; Schollwock, U.; von Delft, J.: Variational ansatz for the superfluid Mott-insulator transition in optical lattices. Optics Express 12 (1), pp. 42 - 54 (2004)

Kraus, B.; Cirac, J. I.: Discrete entanglement distribution with squeezed light. Physical Review Letters 92 (1), 013602 (2004)

Miyake, A.; Verstraete, F.: Multipartite entanglement in 2x2xn quantum systems. Physical Review A 69 (1), 012101 (2004)

Zoller, P.; Cirac, J. I.; Duan, L.; García-Ripoll, J. J.: Quantum Optical Implementation of Quantum Information Processing. In: Quantum Entanglement and Information Processing, pp. 187 - 222 (Eds. Estève, D.; Raimond, J.M.; Dalibard, J.). Les Houches Summer School, Session LXXIX, Les Houches, June 30, 2003 - July 25, 2003. Elsevier, Amsterdam (2004)

Kaluza, M. C.: Characterisation of Laser-Accelerated Proton Beams. Dissertation, Technische Universität, München (2004)

Hecht, T.: Quantum Computation with Bose-Einstein Condensates. Diploma, Technische Universität, München (2004)

Nigg, S.: Cold Atoms in Optical Lattices. Diploma, Technische Universität, München (2004)

Kaluza, M. C.: Characterization of Laser-Accelerated Proton Beams. Max-Planck-Institut für Quantenoptik, Garching (2004), 139 pp.