Pastawski, F.; Kay, A.; Schuch, N.; Cirac, J. I.: How Long Can a Quantum Memory Withstand Depolarizing Noise? Physical Review Letters 103 (8), 080501 (2009)

Bastin, T.; Krins, S.; Mathonet, P.; Godefroid, M.; Lamata, L.; Solano, E.: Operational Families of Entanglement Classes for Symmetric N-Qubit States. Physical Review Letters 103 (7), 070503 (2009)

Hammerer, K.; Wallquist, M.; Genes, C.; Ludwig, M.; Marquardt, F.; Treutlein, P.; Zoller, P.; Ye, J.; Kimble, H. J.: Strong Coupling of a Mechanical Oscillator and a Single Atom. Physical Review Letters 103 (6), 063005 (2009)

Tóth, G.; Wieczorek, W.; Krischek, R.; Kiesel, N.; Michelberger, P.; Weinfurter, H.: Practical methods for witnessing genuine multi-qubit entanglement in the vicinity of symmetric states. New Journal of Physics 11, 083002 (2009)

Wasilewski, W.; Fernholz, T.; Jensen, K.; Madsen, L. S.; Krauter, H.; Muschik, C.; Polzik, E. S.: Generation of two-mode squeezed and entangled light in a single temporal and spatial mode. Optics Express 17 (16), pp. 14444 - 14457 (2009)

Hübener, R.; Van den Nest, M.; Dür, W.; Briegel, H. J.: Classical spin systems and the quantum stabilizer formalism: General mappings and applications. Journal of Mathematical Physics 50 (8), 083303 (2009)

Mendl, C. B.; Wolf, M. M.: Unital Quantum Channels - Convex Structure and Revivals of Birkhoff's Theorem. Communications in Mathematical Physics 289 (3), pp. 1057 - 1086 (2009)

Saberi, H.; Weichselbaum, A.; Lamata, L.; Pérez-García, D.; von Delft, J.; Solano, E.: Constrained optimization of sequentially generated entangled multiqubit states. Physical Review A 80 (2), 022334 (2009)

Cai, J. M.; Dür, W.; Van den Nest, M.; Miyake, A.; Briegel, H. J.: Quantum Computation in Correlation Space and Extremal Entanglement. Physical Review Letters 103 (5), 050503 (2009)

Kay, A.; Kaszlikowski, D.; Ramanathan, R.: Optimal Cloning and Singlet Monogamy. Physical Review Letters 103 (5), 050501 (2009)

Wieczorek, W.; Krischek, R.; Kiesel, N.; Michelberger, P.; Tóth, G.; Weinfurter, H.: Experimental Entanglement of a Six-Photon Symmetric Dicke State. Physical Review Letters 103 (2), 020504 (2009)

De las Cuevas, G.; Dür, W.; Van den Nest, M.; Briegel, H. J.: Completeness of classical spin models and universal quantum computation. Journal of Statistical Mechanics - Theory and Experiment, P07001 (2009)

Keilmann, T.; Cirac, J. I.; Roscilde, T.: Dynamical Creation of a Supersolid in Asymmetric Mixtures of Bosons. Physical Review Letters 102 (25), 255304 (2009)

Bañuls, M. C.; Hastings, M. B.; Verstraete, F.; Cirac, J. I.: Matrix Product States for Dynamical Simulation of Infinite Chains. Physical Review Letters 102 (24), 240603 (2009)

Schmied, R.; Wesenberg, J. H.; Leibfried, D.: Optimal Surface-Electrode Trap Lattices for Quantum Simulation with Trapped Ions. Physical Review Letters 102 (23), 233002 (2009)

Bermudez, A.; Porras, D.; Martin-Delgado, M. A.: Competing many-body interactions in systems of trapped ions. Physical Review A 79 (6), 060303 (2009)

Brennen, G. K.; Aguado, M.; Cirac, J. I.: Simulations of quantum double models. New Journal of Physics 11, 053009 (2009)

Christ, H.; Cirac, J. I.; Giedke, G.: Nuclear spin polarization in quantum dots - The homogeneous limit. Solid State Sciences 11 (5 Sp. Iss. Sp. Iss. SI), pp. 965 - 969 (2009)

Giovannetti, V.; Montangero, S.; Rizzi, M.; Fazio, R.: Homogeneous multiscale-entanglement-renormalization-ansatz states: An information theoretical analysis. Physical Review A 79 (5), 052314 (2009)

Murg, V.; Verstraete, F.; Cirac, J. I.: Exploring frustrated spin systems using projected entangled pair states. Physical Review B 79 (19), 195119 (2009)