©Rafaela Proell

 

 

Philip Walther

Professor

Vice-Dean of the Faculty of Physics
Head of the Quantum Optics, Quantum Nanophysics & Quantum Information Group

Room: 3430, Boltzmanngasse 5, 1090 Vienna
 
E: philip.walther(at)univie.ac.at
T: +43 (0) 1 4277 72560
M: +43 664 60277 72560


Teaching

CV

Publications


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68 Results

Numerical Investigation of Photon-Pair Generation in Periodically Poled MTiOXO4 (M = K, Rb, Cs; X = P, As). / Laudenbach, Fabian (Corresponding author); Jin, Rui-Bo; Greganti, Chiara; Hentschel, Michael; Walther, Philip; Huebel, Hannes.

In: Physical Review Applied, Vol. 8, No. 2, 024035, 31.08.2017.

Publication: Contribution to journal › Article

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A novel single-crystal & single-pass source for polarisation- and colour-entangled photon pairs. / Laudenbach, Fabian (Corresponding author); Kalista, Sebastian; Hentschel, Michael; Walther, Philip; Huebel, Hannes.

In: Scientific Reports, Vol. 7, 7235, 03.08.2017.

Publication: Contribution to journal › Article

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Experimental Verification of an Indefinite Causal Order. / Rubino, Giulia; Rozema, Lee A.; Feix, Adrien; Araújo, Mateus; Zeuner, Jonas M.; Procopio, Lorenzo M.; Brukner, Caslav; Walther, Philip.

In: Science Advances, Vol. 3, No. 3, 160258, 24.03.2017.

Publication: Contribution to journal › Article

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Gravitationally induced phase shift on a single photon. / Hilweg, Christopher (Corresponding author); Massa, Francesco; Martynov, Denis; Mavalvala, Nergis; Chrusciel, Piotr T.; Walther, Philip.

In: New Journal of Physics, Vol. 19, 033028, 16.03.2017.

Publication: Contribution to journal › Article

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On unitary reconstruction of linear optical networks. / Tillmann, Max (Corresponding author); Schmidt, Christian; Walther, Philip.

In: Journal of Optics, Vol. 18, No. 11, 114002, 11.2016.

Publication: Contribution to journal › Article

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Procopio, Lorenzo M. (Author); Rozema, Lee A. (Author); Dakić, Borivoje (Author); Walther, Philip (Author). 2016. Comment on Adler's "Does the Peres experiment using photons test for hyper-complex (quaternionic) quantum theories?". arXiv.org..

Publication: Electronic/multimedia output › Web publication

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Quantum technology : from research to application. / Schleich, Wolfgang P.; Ranade, Kedar S.; Anton, Christian (Corresponding author); Arndt, Markus; Aspelmeyer, Markus; Bayer, Manfred; Berg, Gunnar; Calarco, Tommaso; Fuchs, Harald; Giacobino, Elisabeth; Grassl, Markus; Hänggi, Peter; Heckl, Wolfgang M.; Hertel, Ingolf-Volker; Huelga, Susana; Jelezko, Fedor; Keimer, Bernhard; Kotthaus, Joerg P.; Leuchs, Gerd; Luetkenhaus, Norbert; Maurer, Ueli; Pfau, Tilman; Plenio, Martin B.; Rasel, Ernst Maria; Renn, Ortwin; Silberhorn, Christine; Schiedmayer, Jörg; Schmitt-Landsiedel, Doris; Schönhammer, Kurt; Ustinov, Alexey; Walther, Philip; Weinfurter, Harald; Welzl, Emo; Wiesendanger, Roland; Wolf, Stefan; Zeilinger, Anton; Zoller, Peter.

In: Applied Physics B: lasers and optics, Vol. 122, No. 5, 130, 05.2016.

Publication: Contribution to journal › Article

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Modelling parametric down-conversion yielding spectrally pure photon pairs. / Laudenbach, Fabian (Corresponding author); Huebel, Hannes; Hentschel, Michael; Walther, Philip; Poppe, Andreas.

In: Optics Express, Vol. 24, No. 3, 08.02.2016, p. 2712-2727.

Publication: Contribution to journal › Article

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Procopio, Lorenzo M. (Author); Rozema, Lee A. (Author); Wong, Zi Jing (Author); Hamel, Deny R. (Author); O'Brien, Kevin (Author); Zhang, Xiang (Author); Dakic, Borivoje (Author); Walther, Philip (Author). 2016. Experimental Test of Hyper-Complex Quantum Theories. arXiv.org..

Publication: Electronic/multimedia output › Web publication

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Demonstration of measurement-only blind quantum computing. / Greganti, Chiara; Röhsner, Marie-Christine; Barz, Stefanie; Tomoyuki, Morimae; Walther, Philip.

In: New Journal of Physics, Vol. 18, No. 1, 013020, 08.01.2016.

Publication: Contribution to journal › Article

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Large-scale quantum technology based on luminescent centers in crystals. / Trupke, M.; Salter, C.; Reisenbauer, S.; Vasconcelos, R.; Wachter, G.; Buczak, K.; Angerer, A.; Schmiedmayer, Jörg; Aumayr, Friedrich; Schmid, U.; Walther, P.; Munro, William J; Nemoto, Kae.

2016 IEEE International Electron Devices Meeting (IEDM) (IEDM). IEEE, 2016. p. 13.7.1 - 13.7.4 (IEEE International Electron Devices Meeting).

Publication: Contribution to book › Contribution to proceedings

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Generalized Multiphoton Quantum Interference. / Tillmann, Max (Corresponding author); Tan, Si-Hui; Stoeckl, Sarah E.; Sanders, Barry C.; de Guise, Hubert; Heilmann, Rene; Nolte, Stefan; Szameit, Alexander; Walther, Philip.

In: Physical Review X, Vol. 5, No. 4, 041015, 27.10.2015.

Publication: Contribution to journal › Article

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Experimental superposition of orders of quantum gates. / Procopio, Lorenzo M. (Corresponding author); Moqanaki, Amir; Araujo, Mateus; Costa, Fabio; Calafell, Irati Alonso; Dowd, Emma G.; Hamel, Deny R.; Rozema, Lee A.; Brukner, Caslav; Walther, Philip.

In: Nature Communications, Vol. 6, 7913, 08.2015.

Publication: Contribution to journal › Article

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Linear-Optical Generation of Eigenstates of the Two-Site XY Model. / Barz, Stefanie (Corresponding author); Dakic, Borivoje; Lipp, Yannick Ole; Verstraete, Frank; Whitfield, James D.; Walther, Philip.

In: Physical Review X, Vol. 5, No. 2, 021010, 24.04.2015.

Publication: Contribution to journal › Article

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Practical and efficient experimental characterization of multiqubit stabilizer states. / Greganti, Chiara (Corresponding author); Roehsner, Marie-Christine; Barz, Stefanie; Waegell, Mordecai; Walther, Philip.

In: Physical Review A: Atomic, Molecular and Optical Physics, Vol. 91, No. 2, 022325, 20.02.2015.

Publication: Contribution to journal › Article

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Demonstrating elements of measurement-based quantum error correction. / Barz, Stefanie; Vasconcelos, Rui; Greganti, Chiara; Zwerger, Michael; Dür, Wolfgang; Briegel, Hans J.; Walther, Philip.

In: Physical Review A: Atomic, Molecular and Optical Physics, Vol. 90, No. 4, 042302, 02.10.2014.

Publication: Contribution to journal › Article

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A two-qubit photonic quantum processor and its application to solving systems of linear equations. / Barz, Stefanie (Corresponding author); Kassal, Ivan; Ringbauer, Martin; Lipp, Yannick Ole; Dakic, Borivoje; Aspuru-Guzik, Alan; Walther, Philip.

In: Scientific Reports, Vol. 4, 6115, 19.08.2014.

Publication: Contribution to journal › Article

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Towards photonic quantum simulation of ground states of frustrated Heisenberg spin systems. / Ma, Xiaosong (Corresponding author); Dakic, Borivoje; Kropatschek, Sebastian; Naylor, William; Chan, Yang-hao; Gong, Zhe-xuan; Duan, Lu-ming; Zeilinger, Anton; Walther, Philip.

In: Scientific Reports, Vol. 4, 3583, 07.01.2014.

Publication: Contribution to journal › Article

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Photonic Toolbox for Quantum Simulation. / Ma, Xiaosong (Corresponding author); Dakic, Borivoje; Walther, Philip.

Quantum Information and Computation for Chemistry. ed. / S Kais. Hoboken : John Wiley & Sons, Inc., 2014. p. 229-240 (Advances in Chemical Physics; Vol. 154).

Publication: Contribution to book › Chapter

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Preface: Quantum Communication, Measurement and Computing. / Walther, Philip; Schmiedmayer, Jörg.

AIP Press, 2014. 1 p. (AIP Conference Proceedings; Vol. 1633).

Publication: Book › Proceedings

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Experimental verification of quantum computation. / Barz, Stefanie (Corresponding author); Fitzsimons, Joseph F.; Kashefi, Elham; Walther, Philip.

In: Nature Physics, Vol. 9, No. 11, 11.2013, p. 727-731.

Publication: Contribution to journal › Article

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Experimental boson sampling. / Tillmann, Max (Corresponding author); Dakic, Borivoje; Heilmann, Rene; Nolte, Stefan; Szameit, Alexander; Walther, Philip (Corresponding author).

In: Nature Photonics, Vol. 7, No. 7, 07.2013, p. 540-544.

Publication: Contribution to journal › Article

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No-go theorem for passive single-rail linear optical quantum computing. / Wu, Lian-Ao; Walther, Philip; Lidar, Daniel A. (Corresponding author).

In: Scientific Reports, Vol. 3, 1394, 06.03.2013.

Publication: Contribution to journal › Article

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Entanglement as an Element-of-Reality. / Walther, Philip.

New Vistas on Old Problems: Recent Approaches to the Foundations of Quantum Mechanics. ed. / Tilman Sauer; Adrian Wüthrich. Berlin : Edition Open Access, 2013. p. 163-176 (Max Planck Research Library for the History and Development of Knowledge / Proceedings; Vol. 3).

Publication: Contribution to book › Contribution to proceedings

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Quantum discord as resource for remote state preparation. / Dakic, Borivoje (Corresponding author); Lipp, Yannick Ole; Ma, Xiaosong; Ringbauer, Martin; Kropatschek, Sebastian; Barz, Stefanie; Paterek, Tomasz; Vedral, Vlatko; Zeilinger, Anton; Brukner, Caslav; Walther, Philip.

In: Nature Physics, Vol. 8, No. 9, 09.2012, p. 666-670.

Publication: Contribution to journal › Article

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Photonic quantum simulators. / Aspuru-Guzik, Alan (Corresponding author); Walther, Philip (Corresponding author).

In: Nature Physics, Vol. 8, No. 4, 04.2012, p. 285-291.

Publication: Contribution to journal › Review

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Demonstration of Blind Quantum Computing. / Barz, Stefanie (Corresponding author); Kashefi, Elham; Broadbent, Anne; Fitzsimons, Joseph; Zeilinger, Anton; Walther, Philip.

In: Science, Vol. 335, No. 6066, 20.01.2012, p. 303-308.

Publication: Contribution to journal › Article

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Experimental Engineering of Photonic Quantum Entanglement. / Barz, Stefanie; Cronenberg, Gunther; Walther, Philip.

Advanced Photonic Sciences. ed. / Mohamed Fadhali. InTech, 2012. p. 41-52.

Publication: Contribution to book › Chapter

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Ma, Xiaosong (Author); Dakic, Borivoje (Author); Kropatschek, Sebastian (Author); Naylor, William (Author); Chan, Yang-hao (Author); Gong, Zhe-xuan (Author); Duan, Lu-ming (Author); Zeilinger, Anton (Author); Walther, Philip (Author). 2012. Photonic quantum simulation of ground state configurations of Heisenberg square and checkerboard lattice spin systems.

Publication: Electronic/multimedia output › Web publication

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Nur die Neugier zählt! Wie sonst käme ein Chemiker zur Quantenphysik? / Walther, Philip.

Lehre als Abenteuer: Anregungen für eine bessere Hochschulausbildung. ed. / Matthias Klatt; Sabine Koller. Campus, 2012. p. 160-162.

Publication: Contribution to book › Chapter

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Habilitation - Photonic Quantum Computing and Quantum Simulation. / Walther, Philip.

Eigenverlag, 2012.

Publication: Book

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Quantum simulation of the wavefunction to probe frustrated Heisenberg spin systems. / Ma, Xiaosong; Dakic, Borivoje; Naylor, William; Zeilinger, Anton; Walther, Philip (Corresponding author).

In: Nature Physics, Vol. 7, No. 5, 05.2011, p. 399-405.

Publication: Contribution to journal › Article

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Quantum chemistry using entangled photons: Quantum simulation of frustrated valence-bond states. / Walther, Philip.

In: American Chemical Society. Abstracts of Papers (at the National Meeting), Vol. 241, 2011.

Publication: Contribution to journal › Meeting abstract/Conference paper

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Experimental photonic state engineering and quantum control of two optical qubits. / Barz, Stefanie (Corresponding author); Ma, Xiaosong; Dakic, Borivoje; Zeilinger, Anton; Walther, Philip.

Quantum Communication, Measurement and Computing (QCMC): The Tenth International Conference. ed. / Timothy Ralph; Ping Koy Lam. Vol. 1363 Woodbury, NY : AIP Press, 2011. p. 13-16 (AIP Conference Proceedings; Vol. 1363).

Publication: Contribution to book › Contribution to proceedings

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Walther, Philip (Author). 2011. Quantum Simulation with Light: Frustrations between Photon Pairs.

Publication: Electronic/multimedia output › Web publication

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Wie wirklich ist die Wirklichkeit? / Walther, Philip.

Das naturwissenschaftliche Weltbild am Beginn des 21. Jahrhunderts. ed. / Bernulf Kanitscheider; Reinhard Neck. Peter Lang, 2011. p. 123-128 (Schriftenreihe der Karl Popper Foundation).

Publication: Contribution to book › Chapter

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Quantum imaging: Beating the classical camera. / Barz, Stefanie; Walther, Philip (Corresponding author).

In: Nature Photonics, Vol. 4, No. 4, 04.2010, p. 199-200.

Publication: Contribution to journal › Article

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Heralded generation of entangled photon pairs. / Barz, Stefanie; Cronenberg, Gunther; Zeilinger, Anton; Walther, Philip (Corresponding author).

In: Nature Photonics, Vol. 4, No. 8, 2010, p. 553-556.

Publication: Contribution to journal › Article

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Ligand dynamics on the surface of zirconium oxo clusters. / Walther, Philip; Puchberger, Michael; Kogler, F. Rene; Schwarz, Karlheinz; Schubert, Ulrich.

In: Physical Chemistry Chemical Physics - PCCP, Vol. 11, No. 19, 2009, p. 3640-3647.

Publication: Contribution to journal › Article

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Experimental Realization of Dicke States of up to Six Qubits for Multiparty Quantum Networking. / Prevedel, Robert; Cronenberg, Gunther; Tame, Mark S; Paternostro, Mauro; Walther, Philip; Kim, Myung Sunny; Zeilinger, Anton.

In: Physical Review Letters, Vol. 103, No. 2, 020503, 2009.

Publication: Contribution to journal › Article

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Walther, Philip (Author); Nemiroski, A. (Author); Gorshkov, A. V. (Author); Zibrov, A. S. (Author); Lukin, D. M. (Editorial Journalist). 2008. Quantum memory for long-distance and multiphoton entanglement. SPIE-INT SOC OPTICAL ENGINEERING..

Publication: Electronic/multimedia output › Web publication

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Experimental realization of a quantum game on a one-way quantum computer. / Prevedel, Robert; Stefanov, André; Walther, Philip; Zeilinger, Anton.

In: New Journal of Physics, Vol. 9, 205, 29.06.2007.

Publication: Contribution to journal › Article

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High-speed linear optics quantum computing using active feed-forward. / Prevedel, Robert; Walther, Philip; Tiefenbacher, Felix; Böhi, Pascal; Kaltenbaek, Rainer; Jennewein, Thomas; Zeilinger, Anton.

In: Nature, Vol. 445, No. 7123, 04.01.2007, p. 65-69.

Publication: Contribution to journal › Article

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Heralded generation of multiphoton entanglement. / Walther, Philip; Aspelmeyer, Markus; Zeilinger, Anton.

In: Physical Review A: Atomic, Molecular and Optical Physics, Vol. 75, No. 1, 012313, 01.2007.

Publication: Contribution to journal › Article

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Multi-photon entanglement : From quantum curiosity to quantum computing and quantum repeaters. / Walther, P.; Eisaman, M. D.; Nemiroski, A.; Gorshkov, A. V.; Zibrov, A. S.; Zeilinger, A.; Lukin, M. D.

NATURE OF LIGHT: WHAT ARE PHOTONS?. ed. / C Roychoudhuri; AF Kracklauer; K Creath. BELLINGHAM : SPIE-INT SOC OPTICAL ENGINEERING, 2007. 66640G (Proceedings of SPIE; Vol. 6664).

Publication: Contribution to book › Contribution to proceedings

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Generation of narrow-bandwidth single photons using electromagnetically induced transparency in atomic ensembles. / Walther, P. (Corresponding author); Eisaman, M. D.; Andre, A.; Massou, F.; Fleischhauer, M.; Zibrov, A. S.; Lukin, M. D.

In: International Journal of Quantum Information (IJQI), Vol. 5, No. 1-2, 2007, p. 51-62.

Publication: Contribution to journal › Article

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Quantum information - Spooky teleportation. / Walther, Philip.

In: Nature Physics, Vol. 2, No. 10, 10.2006, p. 655-656.

Publication: Contribution to journal › Annotation

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Experimental entangled entanglement. / Walther, Philip; Resch, Kevin J.; Brukner, Caslav; Zeilinger, Anton.

In: Physical Review Letters, Vol. 97, No. 2, 020501, 14.07.2006.

Publication: Contribution to journal › Article

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Quantum Entanglement, Purification, and linear-optics quantum gates with photonic qubits. / Walther, Philip; Zeilinger, Anton.

Quantum Information and Computing. ed. / L. Accardi; M. Ohya; N. Watanabe. Vol. 19 World Scientific Publishing, 2006. p. 360-369 (QP-PQ Quantum Probability and White Noise Analysis; Vol. 19).

Publication: Contribution to book › Chapter

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Experimental violation of a cluster state bell inequality. / Walther, Philip; Aspelmeyer, Markus; Resch, Kevin J.; Zeilinger, Anton.

In: Physical Review Letters, Vol. 95, No. 2, 020403, 08.07.2005.

Publication: Contribution to journal › Article

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