Experimental Quantum Physics

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Christian Kurtsiefer

Dr. Christian Kurtsiefer



National University of Singapore

Website: http://www.qolah.org

Other publications:

T. Pfau, Ch. Kurtsiefer, C.S. Adams, M. Sigel, J. Mlynek:
"A magneto-optical beamsplitter for atoms"
PRL 71, 3427 (1993)

 T.Pfau, S. Spälter, Ch.Kurtsiefer, C.R. Ekstrom, J. Mlynek:
"measurement ofd the loss of spatial coherence of an atomic beam",
PRL 73, 1223 (1994)

 Ch. Kurtsiefer, T. Pfau, C.R. Ekstrom, J. Mlynek:
"Time-resolved diffraction of atoms from a standing light wave",
Appl. Phys. B 60, 229 (1995)

Ch. Kurtsiefer, T. Pfau, S. Spälter, C. R. Ekstrom, and J. Mlynek:
"A Heisenberg microscope for atoms"
Ann. of the New York Acad. of Sci. 755, 162 (1995)

C.R. Ekstrom, Ch. Kurtsiefer, D. Voigt, O. Dross, T.Pfau, J. Mlynek:
"Coherent excitation of a He* beam observed in atomic momentum distributions"
Opt. Comm. 123, 505 (1996)

Ch. Kurtsiefer, J. Mlynek:
"A 2-dimensional detector with high spatial and temporal resolution for metastable rare gas atoms",
Appl. Phys. B 64, 85-90 (1996)).

T. Pfau, Ch. Kurtsiefer, C.R. Ekstrom, R.J.C. Spreeuw, M. Hartl, U. Janicke, M. Wilkens, and J. Mlynek,
"Non-classical" atom optics, Proc. of the Int. School of Physics "Enrico Fermi," Varenna, Course CXXXI
on Coherent and Collective Interactions of Particles and Radiation Beams, edited by A. Aspect, W. Barletta, and R. Bonifacio
(IOS Press 1996), p. 529.

Ch. Kurtsiefer, R.C. Spreeuw, M. Drewsen, M. Wilkens, J. Mlynek:
"Classical and non-classical atom optics"
Adv. At. Mol. Opt. Phys. (ed.:P. Berman) 171 (1997)

Christian Kurtsiefer, Oliver Dross, Dirk Voigt, Christopher R. Ekstrom, Tilman Pfau, and Jürgen Mlynek:
"Observation of correlated atom-photon pairs on the single particle level",
Phys. Rev. A 55, R2539 (1997)

Ch. Kurtsiefer, T. Pfau, and J.Mlynek:
"Experimental determination of the motional Wigner function of a Helium atom"
Nature 386, 150 (1997)

C.S. Adams, T.Pfau, Ch. Kurtsiefer, J. Mlynek:
"Interaction of atoms with a magneto-optical potential",
Phys, Rev. A 48, 2108 (1993)

M. Sigel, T. Pfau, C.S. Adams, Ch. Kurtsiefer, W. Seifert, C. Heine, J.Mlynek:
"Optical Elements for atoms",
Proc. of the 5th Meeting on Laser Phenomena, K\"uhtai, Austria (1993) (ed.: F. Ehlotzki)

T. Pfau, A. Schnetz, C.S. Adams, Ch. Kurtsiefer, M. Sigel, J. Mlynek:
"Diffraction of atoms from Optical potentials", Proc. of the workshop "Quantum Interferometry",
Trieste, Italy (1993) (ed.:F. De Martini, G. Denardo, A. Zeilinger)

T. Pfau, Ch. Kurtsiefer, J.Mlynek:
"Double Slit Experiments with Correlated Atom-Photon States",
Journal of Quantum and Semiclassical Optics (eds.: E. Arimondo, H.Bachor) (1996)

T. Pfau and Ch. Kurtsiefer:
"Partial reconstruction of the motional Wigner function of an ensemble of Helium atoms",
J. Mod. Opt. 44, 2551 (1997).

S. Nowak, Ch. Kurtsiefer, and T. Pfau; C. David:
"High-Order Talbot fringes for atomic matter waves",
Opt. Lett. 22, 1430 (1997).

Ch. Kurtsiefer, S. Mayer, P. Zarda, and H. Weinfurter:
"A stable solid-state source of single photons",
Phys. Rev. Lett. 85, 290 (2000).

Ch. Kurtsiefer, M. Oberparleiter, and H. Weinfurter:
"High efficiency entangled photon pair collection in type II parametric fluorescence"
Phys. Rev. A 64, 010102(R) (2000).

Berthold-Georg Englert, Christian Kurtsiefer, Harald Weinfurter:
Universal unitary gate for single-photon 2-qubit states
Phys. Rev. A 63, 032303 (2001).

Ch. Kurtsiefer, P. Zarda, S. Mayer, and H. Weinfurter:
"The breakdown flash of Silicon Avalanche diodes - backdoor for eavesdropper attacks?",
Journal of Modern Optics 48, 2039-2047 (2001).

Ch. Kurtsiefer, M. Oberparleiter, and H. Weinfurter:
"Generation of correlated photon pairs in type-II parametric down conversion -- revisited",
Journal of Modern Optics 48, 1997-2007 (2001).

D.S. Bethune, R.G. Devoe, Ch. Kurtsiefer, C.T. Rettner, W.P. Risk:
System for gated detection of optical pulses containing a small number of photons using an avalanche photodiode,
U.S. Patent no. 6,218,657 B1

J. Volz, Ch. Kurtsiefer, and H. Weinfurter:
"Compact All-Solid-State Source of Polarization Entangled Photon Pairs",
Applied Phys. Lett. 79, 869 (2001).

Ch. Kurtsiefer, H. Weinfurter:
Vorrichtung und Verfahren für die Quantenkryptographie
Patentantrag 101 17 272.9, eingereicht beim Deutschen Patentamt (2001)

A. Beige, B.-G. Englert, Ch. Kurtsiefer, H. Weinfurter:
Secure communication with a publicly known key,
Acta Phys. Pol. A 101, 357 (2002)


European Research Conference on Quantum Optics, Davos (Switzerland):
"Magneto-optical beamsplitter", poster (1993)

DPG-Tagung Berlin (Germany):
"Experimental realization of a magneto-optical beamsplitter", contrib. talk (1993)

OSA-Meeting Toronto:
"A magneto-optical beamsplitter for atoms", inv. talk (1994)

European Quantum Electronics Conference EQEC '93, Firenze (Italy):
"Experimental demonstration of a magneto-optical beamsplitter", (1993)

New York Academy of Science: Fundamental Problems in Quantum Theory, Baltimore:
"A Heisenberg microscope for Helium Atoms", inv. talk (1994)

CLEO/EQEC '94, Amsterdam (Netherlands):
"A detector for metastable rare gas atoms with high spatial and temporal resolution", poster, (1994)

DPG-Tagung Innsbruck (Austria):
"A Heisenberg microscope for atoms", inv. talk (1995)

Conference on Quantum interference, Trieste (Italy):
"A Heisenberg microscope for He* atoms", inv. talk (1995)

DPG-Tagung Jena (Germany):
"Atom-photon correlations on a single particle level", contr. talk;
"Excitation of a metastable He beam by adiabatic transfer", poster

Workshop on atom interferometry, Cairns (Australia):
"Excitation of a metastable He beam by adiabatic transfer", poster;
"Measurement of the Wigner function of a matter wave packet", poster (1996)

IQEC '96, Sidney (Australia):
"Correlation measurements between atoms and photons on the single particle level", inv. talk (1996);
"Excitation of a metastable He beam by adiabatic transfer", poster

EQEC '96, Hamburg (Germany):
"Measurement of the Wigner Function of a Matter Wave Packet", contrib. talk (1996);
"Coherent Excitation of a He* Beam Observed in Atomic Momentum Distributions", contrib. talk (1996)

Spring Meeting of the German Physical Society, Mainz, March 3.-6., 1997:
"Vermessung der Wigner-Funktion in einem Doppelspalt-Atominterferometer", contrib. talk.

IQEC '98, San Francisco (USA):
"Recent experimental results in using 137Ba in a miniaturized ion trap for quantum computation", poster

First Annual Workshop of the SquInT network, Albuquerque (USA), March 30 - May 2, 1999:
Towards a quantum computing experiment with 137Ba ions, poster

DECOHERENCE, Gargnano (Italy), 20-25 September 1999:
Towards a quantum computing experiment with Ba-137 ions, poster;
Playing around with type-II parametric down conversion, poster

Current trends in Nano-optics, May 14-18, 2000 Physikzentrum, Bad Honnef, Germany:
A robust all-solid-state source for single photon, poster

DPG-Tagung Bonn (2000):
Kompakte Quelle für einzelne Photonen, contrib. talk

IQEC/CLEO-Europe, 12 - 14 September 2000, Nice (France):
A Robust All-Solid Source for Single Photons, contrib. Talk

QUICK conference on Quantum interference and kryptographic keys, Cargese, Corsica/France, April 7-13, 2001:
Tools for practical Quantum Cryptography, invited talk

International Conference on quantum Information IQCI, Rochester, NY (USA), June 200:
Tools for practcial quantum cryptography, poster;

Coherence and Quantum Optics Conference CQOC8, Rochester, NY (USA), June 13-15, 2001:
High eff, contrib. talk; Experimental Four Photon Entanglement, poster

The Second ESF Quantum Information Technologies Conference, Gdansk, Poland, July 10-18, 2001:
Violation of a Bell's inequality with an entangled 4-photon state, inv. talk

Second European Comission QIPC workshop, 28.-31.October 2001, Torino, Italy:
Free space quantum cryptography,inv. talk



Seminar des Optik-Zentrum Konstanz, 5.12.1996, Universität Konstanz:
Experimente mit korrelierten Atom-Photon-Paaren

Los Alamos sessions of the Quantum technology seminar, May 25, 1999, Los Alamos:
Towards quantum computation in an ion trap - First experimental Raman cooling results with Ba-137

Kolloquium of the SFB 'Control and measurement of coherent Quantum Systems', 17.3.2000, University of Innsbruck:
All solid-state single photon source.

KOLLOQUIUM Quanten-Kommunikation, 10.-11.7.2000, Universität Erlangen-Nürnberg:
Quantenkommunikation mit einzelnen Photonen und Photonenpaaren

Quantenforum am Institut für Physik der Universität Stuttgart, 16.05.2002:
Quantenkommunikation mit wenigen Photonen

Physikalisches Kolloquium der Universität Bremen, 30. Mai 2002:
Quantenkommunikation mit wenigen Photonen