Earlier work

2005 | 2004 | 2003 | 2002 | 2001 | 2000 | 1999 | 1998 | 1997 | 1995 | 1994 | 1993 | 1992 | 1991 | 1990

2005

 

H. Häffner, F. Schmidt-Kaler, W. Hänsel, C.F. Roos, T. Körber, M. Chwalla, M. Riebe, J. Benhelm, U. D. Rapol, C. Becher, R. Blatt,
"Robust Entanglement",
Appl. Phys. B 81, 151 (2005)

A. Kreuter, C. Becher, G. P. T. Lancaster, A. B. Mundt, C. Russo, H. Häffner, C. Roos, W. Hänsel, F. Schmidt-Kaler, R. Blatt, M. S. Safronova,
"New experimental and theoretical approach to the 3d 2D-level lifetimes of 40Ca+",
Phys. Rev. A 71, 032504 (2005)

C. Becher, J. Benhelm, D. Chek-al-kar, M. Chwalla, W. Dür, O. Gühne, H. Häffner, W. Hänsel, T. Körber, A. Kreuter, G.P.T. Lancaster, T. Monz, E.S. Phillips, U.D. Rapol, M.Riebe, C.F. Roos, C. Russo, F. Schmidt-Kaler, and R. Blatt, eds. E. A. Hinds, A. Ferguson, E. Riis,
"Entanglement of trapped ions", in Laser Spectroscopy,
World Scientific, Singapore, 2005

H. Häffner, M. Riebe, F. Schmidt-Kaler, W. Hänsel, C. F. Roos, M. Chwalla, J. Benhelm, T. W. Körber, G. P. T. Lancaster, C. Becher, D.F.V. James, R. Blatt, eds. L. Marcassa, K. Helmerson, V. Bagnato,
"Teleportation with Atoms", in Atomic Physics 19,
AIP 770, New York, 2005

2004

 

M. Riebe, H. Häffner, C. F. Roos, W. Hänsel, J. Benhelm, G. P. T. Lancaster, T. W. Körber, C. Becher, F. Schmidt-Kaler, D. F. V. James, R. Blatt,
"Deterministic quantum teleportation with atoms",
Nature 429, 734 (2004)
Nature News and Views

C. F. Roos, M. Riebe, H. Häffner, W. Hänsel, J. Benhelm, G. P. T. Lancaster, C. Becher, F. Schmidt-Kaler, R. Blatt,
"Control and Measurement of Three-Qubit Entangled States",
Science 304, 1478 (2004)
Science Perspectives

C. F. Roos, G. P. T. Lancaster, M. Riebe, H. Häffner, W. Hänsel, S. Gulde, C. Becher, J. Eschner, F. Schmidt-Kaler, R. Blatt,
"Bell States of Atoms with Ultralong Lifetimes and Their Tomographic State Analysis",
Phys. Rev. Lett. 92, 220402 (2004)

P. Bushev, A. Wilson, J. Eschner, C. Raab, F. Schmidt-Kaler, C. Becher, R. Blatt,
"Forces between a Single Atom and Its Distant Mirror Image",
Phys. Rev. Lett. 92, 223602 (2004)

A. Kreuter, C. Becher, G. P. T. Lancaster, A. B. Mundt, C. Russo, H. Häffner, C. Roos, J. Eschner, F. Schmidt-Kaler, R. Blatt,
"Spontaneous
Emission Lifetime of a Single Trapped Ca+ Ion in a High
Finesse Cavity"
,
Phys. Rev. Lett. 92, 203002 (2004)

F. Schmidt-Kaler, H. Häffner, S. Gulde, M. Riebe, G. Lancaster, J. Eschner, C. Becher, R. Blatt,
"Quantized AC-Stark shifts and their use for multiparticle entanglement and quantum gates",
Europhys. Lett. 65, 587 (2004)

R. Blatt, H. Häffner, C.F. Roos, C. Becher, F. Schmidt-Kaler,
"Ion Trap Quantum Computing with Ca+ Ions",
Quant. Inf. Proc. 3, Nos. 1-5 (2004)

2003

 

F. Schmidt-Kaler, H. Häffner, S. Gulde, M. Riebe, G. P.T. Lancaster, T. Deuschle, C. Becher, W. Hänsel, J. Eschner, C. F. Roos, R. Blatt,
"How to realize a universal quantum gate with trapped ions",
Appl. Phys. B 77, 789 (2003)

M. A. Wilson, P. Bushev, J. Eschner, F. Schmidt-Kaler, C. Becher, R. Blatt, U. Dorner,
"Vacuum-field level shifts in a single trapped ion mediated by a single distant mirror",
Phys. Rev. Lett. 91, 213602 (2003)

G. P. T. Lancaster, H. Häffner, M. A. Wilson, C. Becher, J. Eschner, F. Schmidt-Kaler, R. Blatt,
"Doppler cooling a single Ca+ ion with a violet extended-cavity diode laser",
Appl. Phys. B 76, 805 (2003)

J. Eschner, G. Morigi, F. Schmidt-Kaler, R. Blatt,
"Laser cooling of trapped ions",
J. Opt. Soc. Am. B 20, 1003 (2003)

C. Marquet, F. Schmidt-Kaler, D. F. V. James,
"Phonon-phonon interactions due to non-linear effects in a linear ion trap",
Appl. Phys. B 76, 199 (2003)

F. Schmidt-Kaler, H. Häffner, M. Riebe, S. Gulde, G. P. T. Lancaster, T. Deuschle, C. Becher, C. F. Roos, J. Eschner, R. Blatt,
"Realization of the Cirac-Zoller controlled-NOT quantum gate",
Nature 422, 408 (2003)
Nature Views and parallel article from NIST group

H. Häffner, S. Gulde, M. Riebe, G. Lancaster, C. Becher, J. Eschner, F. Schmidt-Kaler, R. Blatt,
"Precision measurement and compensation of optical Stark shifts for an ion-trap quantum processor",
Phys. Rev. Lett. 90, 143602 (2003)

S. Gulde, M. Riebe, G.P.T. Lancaster, C. Becher, J. Eschner, H. Häffner, F. Schmidt-Kaler, I. L. Chuang, R. Blatt,
"Implementing the Deutsch-Jozsa algorithm on an ion-trap quantum computer",
Nature 421, 48 (2003)

F. Schmidt-Kaler, S. Gulde, M. Riebe, T. Deuschle, A. Kreuter, G. Lancaster, C. Becher, J. Eschner, H. Häffner, R. Blatt,
"The coherence of qubits based on single Ca+ ions",
J. Phys. B: At. Mol. Opt. Phys. 36, 623 (2003)

A. B. Mundt, A. Kreuter, C. Russo, C. Becher, D. Leibfried, J. Eschner, F. Schmidt-Kaler, R. Blatt,
"Coherent coupling of a single Ca+ ion to a high-finesse optical cavity",
Appl. Phys. B 76, 117 (2003)

J. Eschner, Ch. Raab, A. Mundt, A. Kreuter, C. Becher, F. Schmidt-Kaler, R. Blatt,
"Single trapped ions interacting with low- and high-finesse optical cavities",
Fortschr. Phys. 51, 359-368 (2003)
Proceedings of Quantum Interferometry IV, Trieste, Italy, March 2002

C. Marquet, F. Schmidt-Kaler, D. F. V. James,
"Phonon-phonon interactions due to non-linear effects in a linear ion trap",
Appl. Phys. B 76, 199 (2003)

2002

 

A. B. Mundt, A. Kreuter, C. Becher, D. Leibfried, J. Eschner, F. Schmidt-Kaler, R. Blatt,
"Coupling a single atomic quantum bit to a high finesse optical cavity",
Phys. Rev. Lett. 89, 103001 (2002)

H. Rohde, J. Eschner, F. Schmidt-Kaler, R. Blatt,
"Optical decay from a Fabry-Perot cavity faster than the decay time",
J. Opt. Soc. Am. B 19, 1425 (2002).

F. Schmidt-Kaler, J. Eschner, R. Blatt, D. Leibfried, C. Roos, G. Morigi, eds. H. Figger, D. Meschede, C. Zimmermann,
"Laser Cooling of trapped ions", in Laser Physics at the limit,
Springer, Berlin, 2002.

H. Häffner, M. Riebe, F. Schmidt-Kaler, W. Hänsel, C. F. Roos, M. Chwalla, J. Benhelm, T. W. Körber, G. P. T. Lancaster, C. Becher, D.F.V. James, R. Blatt, eds. S. Gulde, H. Häffner, M. Riebe, G. Lancaster, A. Mundt, A. Kreuter, C. Russo, C. Becher, J. Eschner, F. Schmidt-Kaler, I. L. Chuang, R. Blatt,
"Quantum information processing and cavity QED experiments with trapped Ca+ ions", in Atomic Physics 18 (Proceedings of the ICAP 2002),
2002

J. Eschner, G. Morigi, C. Keitel, C. Roos, D. Leibfried, A. Mundt, F. Schmidt-Kaler, R. Blatt, eds. S. Chu, V. Vuletic, A.J. Kerman, Ch. Chin,
"Ground state laser cooling of trapped atoms using EIT", in Proceedings of the XV International Conference on Laser Spectroscopy,
World Scientific, Singapore, 2002

J. Eschner, Ch. Raab, P. Bouchev, F. Schmidt-Kaler, R. Blatt, eds. S. Chu, V. Vuletic, A. J. Kerman, Ch. Chin,
"Single ions interfering with their mirror images", in Proceedings of the XV International Conference on Laser Spectroscopy,
World Scientific,, Singapore, 2002

2001

 

J. Eschner, Ch. Raab, F. Schmidt-Kaler, R. Blatt,
"Light interference from single atoms and their mirror images",
Nature 413, 495 (2001)

S. Gulde, D. Rotter, P. Barton, F. Schmidt-Kaler, R. Blatt, W. Hogervorst,
"Simple and efficient photoionization loading of ions for precision ion-trapping experiments",
Appl. Phys. B 73, 861 (2001)

F. Schmidt-Kaler, J. Eschner, G. Morigi, C. F. Roos, D. Leibfried, A. Mundt, R. Blatt,
"Laser cooling with electromagnetically induced transparency: Application to trapped samples of ions or neutral atoms",
Appl. Phys. B 73, 807 (2001)

H. Rohde, S. T. Gulde, C. F. Roos, P. A. Barton, D. Leibfried, J. Eschner, F. Schmidt-Kaler, R. Blatt,
"Sympathetic ground state cooling and coherent manipulation with two-ion-crystals",
J. Opt. B 3, S34 (2001)

D. Leibfried, C. Roos, P. Barton, H. Rohde, S. Gulde, A. B. Mundt, G. Reymond, M. Lederbauer, F. Schmidt-Kaler, J. Eschner, R. Blatt, eds. E. Arimondo, P. De Natale, M. Inguscio,
"Experiments towards quantum information with trapped Calcium ions", in in Atomic Physics 17 (Proceedings of the ICAP 2000),
AIP, New York, 2001

2000

 

C. F. Roos, D. Leibfried, A. Mundt, F. Schmidt-Kaler, J. Eschner, R. Blatt,
"Experimental demonstration of ground state laser cooling with electromagnetically induced transparency",
Phys. Rev. Lett. 85, 5547 (2000)

A. Steane, C. F. Roos, D. Stevens, A. Mundt, D. Leibfried, F. Schmidt-Kaler, R. Blatt,
"Speed of ion trap quantum information processors",
Phys. Rev. A 62, 042305 (2000)

Ch. Raab, J. Eschner, J. Bolle, H. Oberst, F. Schmidt-Kaler, R. Blatt,
"Motional sidebands and direct measurement of the cooling rate in the resonance fluorescence of a single trapped ion",
Phys. Rev. Lett. 85, 538 (2000)

H. C. Nägerl, Ch. Roos, D. Leibfried, H. Rohde, G. Thalhammer, J. Eschner, F. Schmidt-Kaler, R. Blatt,
"Investigating a qubit candidate: Spectroscopy on the S1/2 to D5/2 transition of a trapped calcium ion in a linear Paul trap",
Phys. Rev. A 61, 023405 (2000)

D. Leibfried, C. Roos, P. Barton, H. Rohde, S. Gulde, A. B. Mundt, F. Schmidt-Kaler, J. Eschner, R. Blatt,
"Towards quantum information with trapped Calcium ions", in Proceedings of the QIPC-Y2K,
Capri, Italy, 2000

F. Schmidt-Kaler, Ch. Roos, H. C. Nägerl, H. Rohde, S. Gulde, A. Mundt, M. Lederbauer, G. Thalhammer, Th. Zeiger, P. Barton, L. Hornekaer, G. Reymond, D. Leibfried, J. Eschner, R. Blatt,
"Ground state cooling, quantum state engineering and study of decoherence of ions in Paul traps",
J. Mod. Opt. 47, 2573 (2000)

H. C. Nägerl, Ch. Roos, H. Rohde, D. Leibfried, J. Eschner, F. Schmidt-Kaler, R. Blatt,
"Addressing and cooling of single ions in Paul traps",
Fortschr. Phys. 48, 623-636 (2000)
Proceedings of the Adriatico Conference on Quantum Interferometry III and Trieste

F. Schmidt-Kaler, H. C. Nägerl, D. Leibfried, R. Blatt, M. Brune, J. M. Raimond, S. Haroche,
"Cavity QED-Experiments for Quantum Information: Trapped Ions and Atoms in Cavities", in The Physics of Quantum Information,
Springer, Berlin, 2000

H. C. Nägerl, F. Schmidt-Kaler, J. Eschner, R. Blatt, W. Lange, H. Baldauf, H. Walther,
"Linear Ion Traps for Quantum Computation", in The Physics of Quantum Information,
Springer, Berlin, 2000

1999

 

Ch. Roos, Th. Zeiger, H. Rohde, H.C. Nägerl, J. Eschner, D. Leibfried, F. Schmidt-Kaler, R. Blatt,
"Quantum state engineering on an optical transition and decoherence in a Paul trap",
Phys. Rev. Lett. 83, 4713 (1999)

H. C. Nägerl, D. Leibfried, H. Rohde, G. Thalhammer, J. Eschner, F. Schmidt-Kaler, R. Blatt,
"Laser addressing of individual ions in a linear ion trap",
Phys. Rev. A 60, 145 (1999)

F. Schmidt-Kaler, Ch. Roos, H. C. Nägerl, H. Rohde, S. Gulde, A. Mundt, Th. Zeiger, G. Reymond, G. Thalhammer, D. Leibfried, J. Eschner, R. Blatt,
"Single Ions in Paul traps", in Laser Spectroscopy; 14th International Conference (ICOLS99),
World Scientific, Singapore, 1999

Ch. Raab, J. Bolle, H. Oberst, J. Eschner, F. Schmidt-Kaler, D. Leibfried, R. Blatt,
"Motional effects in the flourescence spectrum of a single Ba+ ion", in Laser Spectroscopy; 14th International Conference (ICOLS99),
World Scientific, Singapore, 1999

H. C. Nägerl, Ch. Roos, H. Rohde, D. Leibfried, J. Eschner, F. Schmidt-Kaler, R. Blatt, eds. P. Blanchard, D. Giulini, C. Kiefer, I. O. Stamateccu,,
"Single Ions in Paul traps", in Decoherence: Theoretical, Experimental, and Conceptual Problems,
Springer, Berlin, 1999.

F. Schmidt-Kaler,
"Eine lineare Kette von 40Ca+ Ionen für die Verarbeitung von Quanteninformation", in Proceedings des Workshops Quanten-Initiative Karlsruhe-Innsbruck,
E.I.S.S and Europ\"aisches Institut f\"ur Sytemsicherheit and Universit\"at Karlsruhe, 1999

1998

 

H.C. Nägerl, D. Leibfried, F. Schmidt-Kaler, J. Eschner, R. Blatt,
"Coherent excitation of normal modes in a string of Ca+ ions",
Optics Express 3, 89 (1998)

C. Raab, J. Bolle, H. Oberst, J. Eschner, F. Schmidt-Kaler, R. Blatt,
"Diode laser spectrometer at 493 nm for single trapped Ba+ ions",
Appl. Phys. B 67, 683 (1998)
Erratum: Appl. Phys. B 69, 253 (1999).

H.C. Nägerl, W. Bechter, J. Eschner, F. Schmidt-Kaler, R. Blatt,
"Ion strings for quantum gates",
Appl. Phys. B 66, 603 (1998)

1997

 

H. C. Nägerl, C. Roos, W. Bechter, J. Eschner, F. Schmidt-Kaler, R. Blatt,
"Trapped ions for quantum gates and Cavity QED", in Proceedings of the 13. International Conference on Laser Spectroscopy (THICOLS),
Hangzhou, China, 1997

1995

 

M. Weitz, A. Huber, F. Schmidt-Kaler, D. Leibfried, W. Vassen, C. Zimmermann, K. Pachucki, T. W. Hänsch, ,
"Precision Measurement of the 1S Ground-state Lamb shift in Atomic Hydrogen and Deuterium by Frequency Comparison",
Phys. Rev. A 52, 2664 (1995)

F. Schmidt-Kaler, D. Leibfried, S. Seel, C. Zimmermann, W. König, M. Weitz, T. W. Hänsch, ,
"High-resolution Spectroscopy of the 1S-2S Transition of Atomic Hydrogen and Deuterium",
Phys. Rev. A 51, 2789 (1995)

1994

 

J. M. Raimond, M. Brune, S. Haroche, F. Schmidt-Kaler, L. Davidovich, N. Zagury,
"Measuring and Manipulating Quantum Fields in a Cavity by Atom Interferometry", in Atomic physics 13 and ICAP conference proceedings,
AIP, New York, 1994

,
"From Lamb Shift to Light Shifts: Vacuum and Subphoton Cavity Fields Measured by Atomic Phase Sensitive Detection",
Phys. Rev. Lett. 72, 3339 (1994)

C. Zimmermann, A. Huber, W. König, D. Leibfried, F. Schmidt-Kaler, M. Weitz, T. W. Hänsch, eds. J. Tran Thanh Van, G. Fontaine, E. Hinds,
"High Resolution Spectroscopy of Atomic Hydrogen", in Particle Astrophysics and Atomic Physics and Gravitation,
Edition Frontieres, France, 1994

1993

 

M. Weitz, F. Schmidt-Kaler, T. W. Hänsch, eds. M. Inguscio, R. Wallenstein,,
"Frequency Stabilized Ti:Sapphire Laser for High Resolution Spectroscopy of Atomic Hydrogen", in Solid State Lasers,
Plenum Press, New York, 1993

F. Schmidt-Kaler, D. Leibfried, M. Weitz, T. W. Hänsch,
"Precise Measurement of the Isotope Shift of the 1S-2S Transition of Atomic Hydrogen and Deuterium",
Phys. Rev. Lett. 70, 2261 (1993)

D. Leibfried, F. Schmidt-Kaler, M. Weitz, T. W. Hänsch,
"Phase-Matched Electrooptic Modulator at 84 GHz for Blue Light: Theory,Experimental Test and Applications",
Appl. Phys. B 56, 65 (1993)

1992

 

T. Andrae, W. König, R. Wynands, D. Leibfried, F. Schmidt-Kaler, C. Zimmermann, D. Meschede, T. W. Hänsch,
"Absolute Frequency Measurement of the Hydrogen 1S-2S Transition and a New Value of the Rydberg Constant",
Phys. Rev. Lett. 69, 1923 (1992)

M. Weitz, F. Schmidt-Kaler, T. W. Hänsch,
"Precise Optical Lamb Shift Measurements in Atomic Hydrogen",
Phys. Rev. Lett. 68, 1120 (1992)

F. Schmidt-Kaler, T. Andrae, W. König, D. Leibfried, L. Ricci, M. Weitz, R. Wynands, C. Zimmermann, T. W. Hänsch,
"High Resolution Spectroscopy of the 1S-2S Transition in Atomic Hydrogen", in Atomic physics 12 and ICAP conference proceedings,
AIP, NewYork, 1992

1991

 

R. Kallenbach, F. Schmidt-Kaler, M. Weitz, C. Zimmermann, T. W. Hänsch,
"High Power UV Source with Extreme Frequency Stability",
Opt. Comm. 81, 63 (1991)

1990

 

T. Andrae, W. C. Zimmermann, R. Kallenbach, W. Vassen, F. Schmidt-Kaler, M. Weitz, D. Leibfried, T. W. Hänsch,
"High Resolution Spectroscopy of the Hydrogen 1S-2S Transition in an Atomic Beam", in Atomic physics 11 and ICAP conference proceedings,
AIP, NewYork, 1990

M. Weitz, F. Schmidt-Kaler, T. W. Hänsch, ed. J. H. Eberly et. al.,
"Nonclassical Radiation in the One-Atom Maser", in Coherence and Quantum Optics VI,
Plenum Press, New York, 1990

G. Rempe, F. Schmidt-Kaler, H. Walther,
"Observation of sub-Poissonian Photon Statistics in a Micromaser",
Phys. Rev. Lett. 64, 2783 (1990)