Zimmermann, M.; Gohle, C.; Holzwarth, R.; Udem, T.; Hänsch, T. W.: Optical clockwork with an offset-free difference-frequency comb: accuracy of sum- and difference-frequency generation. Optics Letters 29 (3), pp. 310 - 312 (2004)

Trojek, P.; Schmid, C.; Bourennane, M.; Weinfurter, H.; Kurtsiefer, C.: Compact source of polarization-entangled photon pairs. Optics Express 12 (2), pp. 276 - 281 (2004)

Kolachevsky, N.; Fischer, M.; Karshenboim, S. G.; Hänsch, T. W.: High-precision optical measurement of the 2S hyperfine interval in atomic hydrogen. Physical Review Letters 92 (3), 033003 (2004)

Klembovsky, M. P.; Gorodetsky, M. L.; Becker, T.; Walther, H.: Quantum bit detector. JETP Letters 79 (9), pp. 441 - 444 (2004)

Tan, J. N.; Bowden, N. S.; Gabrielse, G.; Oxley, P.; Speck, A.; Storry, C. H.; Wessels, M.; Grzonka, D.; Oelert, W.; Schepers, G. et al.; Sefzick, T.; Walz, J.; Pittner, H.; Hänsch, T. W.; Hessels, E. A.: Observations of cold antihydrogen. Nuclear Instruments & Methods in Physics Research Section B-Beam Interactions with Materials and Atoms 214, pp. 22 - 30 (2004)

Paulus, G. G.; Lindner, F.; Walther, H.; Baltuška, A.; Goulielmakis, E.; Lezius, M.; Krausz, F.: Measurement of the Phase of Few-Cycle Laser Pulses. Physical Review Letters 91 (25), 253004 (2003)

Paulus, G. G.; Lindner, F.; Walther, H.; Baltuška, A.; Goulielmakis, E.; Lezius, M.; Krausz, F.: Measurement of the Phase of Few-Cycle Laser Pulses. Physical Review Letters 91 (25), 253004 (2003)

Fernandes, L. M. P.; Antognini, A.; Boucher, M.; Conde, C. A. N.; Huot, O.; Knowles, P. E.; Kottmann, F.; Ludhova, L.; Mulhauser, F.; Pohl, R. et al.; dos Santos, J. M. F.; Schaller, L. A.; Taqqu, D.; Veloso, J. F. C. A.: Application of large-area avalanche photodiodes to X-ray spectrometry of muonic atoms. Spectrochimica Acta Part B-Atomic Spectroscopy 58 (12), pp. 2255 - 2260 (2003)

Gaertner, S.; Bourennane, M.; Eibl, M.; Kurtsiefer, C.; Weinfurter, H.: High-fidelity source of four-photon entanglement. Applied Physics B-Lasers and Optics 77 (8), pp. 803 - 807 (2003)

Paulus, G. G.; Grasbon, F.; Walther, H.: Interference effects in above-threshold ionization. Physica Scripta 68 (6), pp. C118 - C122 (2003)

Vidne, Y.; Rosenbluh, M.; Hänsch, T. W.: Pulse picking by phase-coherent additive pulse generation in an external cavity. Optics Letters 28 (23), pp. 2396 - 2398 (2003)

Walz, J.; Pittner, H.; Herrmann, M.; Fendel, P.; Henrich, B.; Hänsch, T. W.: Cold antihydrogen atoms. Applied Physics B-Lasers and Optics 77 (8), pp. 713 - 717 (2003)

Neronov, Y. I.; Karshenboim, S. G.: NMR spectroscopy of hydrogen of deuteride and magnetic moments deuteron and triton. Physics Letters A 318 (1-2), pp. 126 - 132 (2003)

Mandel, O.; Greiner, M.; Widera, A.; Rom, T.; Hänsch, T. W.; Bloch, I.: Controlled collisions for multi-particle entanglement of optically trapped atoms. Nature 425 (6961), pp. 937 - 940 (2003)

Grasbon, F.; Paulus, G. G.; Walther, H.; Villoresi, P.; Sansone, G.; Stagira, S.; Nisoli, M.; De Silvestri, S.: Above-threshold ionization at the few-cycle limit. Physical Review Letters 91 (17), 173003 (2003)

Pavičić, D.; Kieß, A.; Hänsch, T. W.; Figger, H.: Clearly structured fragment kinetic energy spectra discovered in the Coulomb explosion of H₂⁺ and D₂⁺. European Physical Journal D 26 (1), pp. 39 - 41 (2003)

Eremina, E.; Liu, X.; Rottke, H.; Sandner, W.; Dreischuh, A.; Lindner, F.; Grasbon, F.; Paulus, G. G.; Walther, H.; Moshammer, R. et al.; Feuerstein, B.; Ullrich, J.: Laser-induced non-sequential double ionization investigated at and below the threshold for electron impact ionization. Journal of Physics B-Atomic Molecular and Optical Physics 36 (15), pp. 3269 - 3280 (2003)

Karshenboim, S. G.; Ivanov, V. G.: The g factor of the proton. Physics Letters B 566 (1-2), pp. 27 - 34 (2003)

Bloch, I.; Greiner, M.; Mandel, O.; Hänsch, T. W.: Coherent cold collisions with neutral atoms in optical lattices. Philosophical Transactions of the Royal Society of London Series A-Mathematical Physical and Engineering Sciences 361 (1808), pp. 1409 - 1416 (2003)

Long, R.; Steinmetz, T.; Hommelhoff, P.; Hänsel, W.; Hänsch, T. W.; Reichel, J.: Magnetic microchip traps and single-atom detection. Philosophical Transactions of the Royal Society of London Series A-Mathematical Physical and Engineering Sciences 361 (1808), pp. 1375 - 1389 (2003)