Univ.-Prof. Dipl.-Ing. Dr. Philip Walther
T: +43-1-4277-72560
M: +43-664-60277-72560
Summer term 2019
260122 VO Complex Quantum Systems Summerschool - Lectures by international guests with exams
260165 PR Spezialisierungsmodul Quantenoptik, Quantenphysik und Quanteninformation - Einführung in die Arbeitsmethoden der experimentellen und theoretischen Quantenphysik - Vorbereitung zur Masterarbeit
Winter term 2018
260165 PR Spezialisierungsmodul Quantenoptik, Quantenphysik und Quanteninformation - Einführung in die Arbeitsmethoden der experimentellen und theoretischen Quantenphysik - Vorbereitung zur Masterarbeit
442615 SE Quantum Optics Seminar - The Seminar consists of a series of talks, given by mainly international guests.

Calafell, IA, Stroemberg, T, Arvidsson-Shukur, DRM, Rozema, LA, Saggio, V, Greganti, C, Harris, NC, Prabhu, M, Carolan, J, Hochberg, M, Baehr-Jones, T, Englund, D, Barnes, CHW & Walther, P 2019, 'Trace-free counterfactual communication with a nanophotonic processor', npj Quantum Information, vol. 5, 61. https://doi.org/10.1038/s41534-019-0179-2




Zeuner, J, Sharma, AN, Tillmann, M, Heilmann, R, Grafe, M, Moqanaki, A, Szameit, A & Walther, P 2018, 'Integrated-optics heralded controlled-NOT gate for polarization-encoded qubits', npj Quantum Information, vol. 4, 13. https://doi.org/10.1038/s41534-018-0068-0


Heilmann, R, Greganti, C, Graefe, M, Nolte, S, Walther, P & Szameit, A 2018, 'Tapering of femtosecond laser-written waveguides', Applied Optics, vol. 57, no. 3, pp. 377-381. https://doi.org/10.1364/AO.57.000377







Laudenbach, F, Kalista, S, Hentschel, M, Walther, P & Huebel, H 2017, A Novel Compact and Efficient Source of Photonic Entanglement. in 2017 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC). IEEE, Conference on Lasers and Electro-Optics Europe / European Quantum Electronics Conference (CLEO/Europe-EQEC), Munich, Germany, 25/06/17. https://doi.org/10.1109/CLEOE-EQEC.2017.8087345

Rozema, LA, Rubino, G, Feix, A, Araujo, M, Brukner, C & Walther, P 2017, Experimental Tests of Indefinite Causal Orders. in Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC, 2017 Conference on). Conference on Lasers and Electro-Optics, IEEE, Conference on Lasers and Electro-Optics Europe / European Quantum Electronics Conference (CLEO/Europe-EQEC), Munich, Germany, 25/06/17. https://doi.org/10.1109/CLEOE-EQEC.2017.8087315


Schleich, WP, Ranade, KS, Anton, C, Arndt, M, Aspelmeyer, M, Bayer, M, Berg, G, Calarco, T, Fuchs, H, Giacobino, E, Grassl, M, Hänggi, P, Heckl, WM, Hertel, I-V, Huelga, S, Jelezko, F, Keimer, B, Kotthaus, JP, Leuchs, G, Luetkenhaus, N, Maurer, U, Pfau, T, Plenio, MB, Rasel, EM, Renn, O, Silberhorn, C, Schiedmayer, J, Schmitt-Landsiedel, D, Schönhammer, K, Ustinov, A, Walther, P, Weinfurter, H, Welzl, E, Wiesendanger, R, Wolf, S, Zeilinger, A & Zoller, P 2016, 'Quantum technology: from research to application', Applied Physics B: Lasers and Optics, vol. 122, no. 5, 130. https://doi.org/10.1007/s00340-016-6353-8

Laudenbach, F, Huebel, H, Hentschel, M, Walther, P & Poppe, A 2016, 'Modelling parametric down-conversion yielding spectrally pure photon pairs', Optics Express, vol. 24, no. 3, pp. 2712-2727. https://doi.org/10.1364/OE.24.002712

Procopio, LM, Rozema, LA, Wong, ZJ, Hamel, DR, O'Brien, K, Zhang, X, Dakic, B & Walther, P, Experimental Test of Hyper-Complex Quantum Theories, 2016, Web publication, arXiv.org.


Trupke, M, Salter, C, Reisenbauer, S, Vasconcelos, R, Wachter, G, Buczak, K, Angerer, A, Schmiedmayer, J, Aumayr, F, Schmid, U, Walther, P, Munro, WJ & Nemoto, K 2016, Large-scale quantum technology based on luminescent centers in crystals. in 2016 IEEE International Electron Devices Meeting (IEDM) (IEDM). IEEE International Electron Devices Meeting, IEEE, pp. 13.7.1 - 13.7.4, 62nd Annual IEEE International Electron Devices Meeting (IEDM), San Francisco, United States, 3/12/16. https://doi.org/10.1109/IEDM.2016.7838412

Tillmann, M, Tan, S-H, Stoeckl, SE, Sanders, BC, de Guise, H, Heilmann, R, Nolte, S, Szameit, A & Walther, P 2015, 'Generalized Multiphoton Quantum Interference', Physical Review X, vol. 5, no. 4, 041015. https://doi.org/10.1103/PhysRevX.5.041015







Ma, X, Dakic, B & Walther, P 2014, Photonic Toolbox for Quantum Simulation. in S Kais (ed.), Quantum Information and Computation for Chemistry. Advances in Chemical Physics, vol. 154, John Wiley & Sons, Inc., Hoboken, pp. 229-240. https://doi.org/10.1002/9781118742631.ch09

Walther, P & Schmiedmayer, J 2014, Preface: Quantum Communication, Measurement and Computing. AIP Conference Proceedings, vol. 1633, AIP Press. https://doi.org/10.1063/1.3630136

Barz, S, Fitzsimons, JF, Kashefi, E & Walther, P 2013, 'Experimental verification of quantum computation', Nature Physics, vol. 9, no. 11, pp. 727-731. https://doi.org/10.1038/NPHYS2763

Tillmann, M, Dakic, B, Heilmann, R, Nolte, S, Szameit, A & Walther, P 2013, 'Experimental boson sampling', Nature Photonics, vol. 7, no. 7, pp. 540-544. https://doi.org/10.1038/NPHOTON.2013.102


Walther, P 2013, Entanglement as an Element-of-Reality. in T Sauer & A Wüthrich (eds), New Vistas on Old Problems: Recent Approaches to the Foundations of Quantum Mechanics. Max Planck Research Library for the History and Development of Knowledge / Proceedings, vol. 3, Edition Open Access, Berlin, pp. 163-176.

Dakic, B, Lipp, YO, Ma, X, Ringbauer, M, Kropatschek, S, Barz, S, Paterek, T, Vedral, V, Zeilinger, A, Brukner, C & Walther, P 2012, 'Quantum discord as resource for remote state preparation', Nature Physics, vol. 8, no. 9, pp. 666-670. https://doi.org/10.1038/NPHYS2377


Barz, S, Kashefi, E, Broadbent, A, Fitzsimons, J, Zeilinger, A & Walther, P 2012, 'Demonstration of Blind Quantum Computing', Science, vol. 335, no. 6066, pp. 303-308. https://doi.org/10.1126/science.1214707

Barz, S, Cronenberg, G & Walther, P 2012, Experimental Engineering of Photonic Quantum Entanglement. in M Fadhali (ed.), Advanced Photonic Sciences. InTech, pp. 41-52. https://doi.org/10.5772/26366


Walther, P 2012, Nur die Neugier zählt! Wie sonst käme ein Chemiker zur Quantenphysik? in M Klatt & S Koller (eds), Lehre als Abenteuer: Anregungen für eine bessere Hochschulausbildung . Campus, pp. 160-162.



Barz, S, Ma, X, Dakic, B, Zeilinger, A & Walther, P 2011, Experimental photonic state engineering and quantum control of two optical qubits. in T Ralph & PK Lam (eds), Quantum Communication, Measurement and Computing (QCMC): The Tenth International Conference. vol. 1363, AIP Conference Proceedings, vol. 1363, AIP Press, Woodbury, NY, pp. 13-16, 10th International Conference on Quantum Communication, Measurement and Computing (QCMC), Brisbane, Australia, 19/07/10. https://doi.org/10.1063/1.3630138



Walther, P 2011, Wie wirklich ist die Wirklichkeit? in B Kanitscheider & R Neck (eds), Das naturwissenschaftliche Weltbild am Beginn des 21. Jahrhunderts. Schriftenreihe der Karl Popper Foundation, Peter Lang, pp. 123-128. https://doi.org/10.3726/978-3-653-02207-0




Walther, P, Puchberger, M, Kogler, FR, Schwarz, K & Schubert, U 2009, 'Ligand dynamics on the surface of zirconium oxo clusters', Physical Chemistry Chemical Physics - PCCP, vol. 11, no. 19, pp. 3640-3647. https://doi.org/10.1039/b820731c

Walther, P, Nemiroski, A, Gorshkov, AV, Zibrov, AS & Lukin, DM, Quantum memory for long-distance and multiphoton entanglement, 2008, Web publication, SPIE-INT SOC OPTICAL ENGINEERING. https://doi.org/10.1117/2.1200803.1072


Prevedel, R, Walther, P, Tiefenbacher, F, Böhi, P, Kaltenbaek, R, Jennewein, T & Zeilinger, A 2007, 'High-speed linear optics quantum computing using active feed-forward', Nature, vol. 445, no. 7123, pp. 65-69. https://doi.org/10.1038/nature05346



Walther, P, Eisaman, MD, Nemiroski, A, Gorshkov, AV, Zibrov, AS, Zeilinger, A & Lukin, MD 2007, Multi-photon entanglement: From quantum curiosity to quantum computing and quantum repeaters. in C Roychoudhuri, AF Kracklauer & K Creath (eds), NATURE OF LIGHT: WHAT ARE PHOTONS?., 66640G, Proceedings of SPIE, vol. 6664, SPIE-INT SOC OPTICAL ENGINEERING, BELLINGHAM, Conference on Nature of Light - What are Photons, San Diego, United States, 26/08/07. https://doi.org/10.1117/12.736979



Walther, P & Zeilinger, A 2006, Quantum Entanglement, Purification, and linear-optics quantum gates with photonic qubits. in L Accardi, M Ohya & N Watanabe (eds), Quantum Information and Computing. vol. 19, QP-PQ Quantum Probability and White Noise Analysis, vol. 19, World Scientific Publishing, pp. 360-369. https://doi.org/10.1142/9789812774491_0030


Arndt, M, Aspelmeyer, M, Bernstein, HJ, Bertlmann, R, Brukner, C, Dowling, JP, Eisert, J, Ekert, A, Fuchs, CA, Greenberger, DM, Horne, MA, Jennewein, T, Kwiat, PG, Mermin, ND, Pan, J-W, Rasel, EM, Rauch, H, Rudolph, TG, Salomon, C, Sergienko, AV, Schmiedmayer, J, Simon, C, Vedral, V, Walther, P, Weihs, G, Zoller, P & Zukowski, M, Quantum Physics from A to Z, 2005, Web publication.



Walther, P, Resch, K, Rudolph, T, Schenck, E, Weinfurter, H, Vedral, V, Aspelmeyer, M & Zeilinger, A 2005, 'Experimental one-way quantum computing', Nature, vol. 434, no. 7030, pp. 169-176. https://doi.org/10.1038/nature03347



Resch, K, Lindenthal, M, Blauensteiner, B, Böhm, H, Fedrizzi, A, Kurtsiefer, C, Poppe, A, Schmitt-Manderbach, T, Taraba, M, Ursin, R, Walther, P, Weier, H, Weinfurter, H & Zeilinger, A 2005, 'Distributing entanglement and single photons through an intra-city, free-space quantum channel', Optics Express, vol. 13, no. 1, pp. 202-209. https://doi.org/10.1364/OPEX.13.000202

Aspelmeyer, M, Böhm, H, Fedrizzi, A, Gasparoni, S, Lindenthal, M, Molina-Terriza, G, Poppe, A, Resch, K, Ursin, R, Walther, P, Zeilinger, A & Jennewein, T 2005, Advanced Quantum Communications Experiments with Entangled Photons. in AV Sergienko (ed.), Quantum Communications and Cryptography. CRC Press Taylor & Francis Group, pp. 45-81. https://doi.org/10.1201/9781420026603.ch3

Resch, KJ, Lindenthal, M, Blauensteiner, B, Böhm, H, Fedrizzi, A, Taraba, M, Ursin, R, Walther, P, Poppe, A, Schmitt-Manderbach, T, Weier, H, Weinfurter, H & Zeilinger, A 2005, Distributing entanglement and single photons through an intra-city, free-space quantum channel. in 2005 European Quantum Electronics Conference, EQEC '05. vol. 2005, 1567464, pp. 298, 2005 European Quantum Electronics Conference, EQEC '05, Munich, Germany, 12/06/05. https://doi.org/10.1109/EQEC.2005.1567464


Walther, P & Zeilinger, A 2005, Quantum logics based on four-photon entanglement. in VM Akulin, A Sarfati, G Kurizki & S Pellegrin (eds), Decoherence, Entanglement and Information Protection in Complex Quantum Systems. NATO SCIENCE SERIES, SERIES II: MATHEMATICS, PHYSICS AND CHEMISTRY, vol. 189, Springer, DORDRECHT, pp. 49-62, NATO Advanced Research Workshop on Decoherence, Entanglement and Information Protection in Complex Quantum Systems, Les Houches, France, 26/04/04. https://doi.org/10.1007/1-4020-3283-8_7

Ursin, R, Jennewein, T, Aspelmeyer, M, Kaltenbaek, R, Lindenthal, M, Walther, P & Zeilinger, A 2004, 'Quantum teleportation across the Danube', Nature, vol. 430, no. 7002, pp. 849-849. https://doi.org/10.1038/430849a

Aspelmeyer, M, Walther, P, Jennewein, T & Zeilinger, A 2004, Nonlocal photon number states for quantum metrology. in RE Meyers & Y Shih (eds), Quantum Communications and Quantum Imaging II. Progress in Biomedical Optics and Imaging - SPIE, vol. 5551, International Society for Optical Engineering (SPIE), Denver, CO, pp. 15-22, Conference on Quantum Communications and Quantum Imaging II, Denver, United States, 4/08/04. https://doi.org/10.1117/12.561460



Aspelmeyer, M, Böhm, H, Gyatso, T, Jennewein, T, Kaltenbaek, R, Lindenthal, M, Molina, G, Poppe, A, Resch, K, Taraba, M, Ursin, R, Walther, P & Zeilinger, A 2003, 'Long-distance free-space distribution of quantum entanglement', Science, vol. 301, no. 5633, pp. 621-623. https://doi.org/10.1126/science.1085593

Aspelmeyer, M, Jennewein, T, Böhm, HR, Brukner, C, Kaltenbaek, R, Lindenthal, M, Molina-Terriza, G, Petschinka, J, Ursin, R, Walther, P, Zeilinger, A, Pfennigbauer, M & Leeb, WR 2003, Quantum Communications in Space. in Technical Report under contract 16358/02, ESA. ESA Publications Division.


Multiphoton processing using integrated optics

Philip Walther (Invited speaker)
2 Oct 2019

Activity: Talks and presentationsTalk or oral contributionScience to Science


Quantum photonics for secure quantum and classical computing

Philip Walther (Invited speaker)
10 Sep 2019

Activity: Talks and presentationsTalk or oral contributionScience to Science


Quantum photonics for secure quantum computing and novel communication tasks

Philip Walther (Invited speaker)
7 Jun 2019

Activity: Talks and presentationsTalk or oral contributionScience to Science


Quantum photonics enabling novel quantum computer applications

Philip Walther (Invited speaker)
27 May 2019

Activity: Talks and presentationsTalk or oral contributionScience to Science


Quantum photonics for secure data processing and other applications

Philip Walther (Invited speaker)
15 Mar 2019

Activity: Talks and presentationsTalk or oral contributionScience to Science


Quantum Photonics for Computer Security and other Applications

Philip Walther (Invited speaker)
24 Jan 2019

Activity: Talks and presentationsTalk or oral contributionScience to Science


Quantum photonics for quantum causality & probing the quantum-gravity interface

Philip Walther (Invited speaker)
22 Nov 2018

Activity: Talks and presentationsTalk or oral contributionScience to Science


Integrated photonics for secure quantum computing and novel quantum communication tasks

Philip Walther (Invited speaker)
11 Nov 2018

Activity: Talks and presentationsTalk or oral contributionScience to Science


Quantentechnologie für Datensicherheit

Philip Walther (Speaker)
12 Jun 2018

Activity: Talks and presentationsTalk or oral contributionScience to Public


Quantum Photonics for Foundations and Applications

Philip Walther (Speaker)
2 Mar 20189 Mar 2018

Activity: Talks and presentationsTalk or oral contributionScience to Science


Quantum Photonics for Quantum Causality

Philip Walther (Speaker)
26 Feb 20182 Mar 2018

Activity: Talks and presentationsTalk or oral contributionScience to Science


Quantum Photonics for Quantum Causality

Philip Walther (Invited speaker)
3 Jan 201811 Jan 2018

Activity: Talks and presentationsTalk or oral contributionScience to Science


Quantum photonics: Schrödinger’s cat applied to causal structures

Philip Walther (Invited speaker)
29 Nov 201730 Nov 2017

Activity: Talks and presentationsTalk or oral contributionScience to Public


Quantum computing and quantum physics foundations exploiting photonic quantum technology

Philip Walther (Invited speaker)
28 Sep 201730 Sep 2017

Activity: Talks and presentationsTalk or oral contributionScience to Science


Photonic quantum computing exploiting the superposition of gates and other features

Philip Walther (Invited speaker)
26 Sep 201728 Sep 2017

Activity: Talks and presentationsTalk or oral contributionScience to Science


Quantum photonics for novel quantum computing and testing quantum physics foundations

Philip Walther (Invited speaker)
12 Sep 201714 Sep 2017

Activity: Talks and presentationsTalk or oral contributionScience to Science


Advantages of photonic quantum technology for novel quantum computing schemes

Philip Walther (Invited speaker)
29 Aug 2017

Activity: Talks and presentationsTalk or oral contributionScience to Science


Quantum photonics for superimposing causal orders

Philip Walther (Invited speaker)
3 Aug 2017

Activity: Talks and presentationsTalk or oral contributionScience to Science


Quantum photonics for novel quantum computing and testing quantum physics foundations

Philip Walther (Invited speaker)
24 Jul 201727 Jul 2017

Activity: Talks and presentationsTalk or oral contributionScience to Science


Quantum photonics for novel quantum computing and testing quantum physics foundations

Philip Walther (Invited speaker)
5 Jun 20178 Jun 2017

Activity: Talks and presentationsTalk or oral contributionScience to Science


Quantum Optics, Quantum Nanophysics and Quantum Information

Group Speaker

Boltzmanngasse 5
1090 Wien
Room: 3430

T: +43-1-4277-72560
M: +43-664-60277-72560
F: +43-1-4277-872560

philip.walther@univie.ac.at