The "Vienna Center for Quantum Science and Technology" is a joint initiative of the University of Vienna, the Vienna University of Technology, and the Austrian Academy of Sciences, which unites quantum physicists of Vienna's research institutions in one collaborative center. The VCQ will set new impulses for research and teaching through its unique spectrum of research topics - from fundamental quantum physics to novel quantum technologies.
"Quantum physics at the Lange Nacht der Forschung 2012"
On April 27th 2012 the "Lange Nacht der Forschung 2012" took place also in Vienna. Young scientists of the Vienna Center for Quantum Science and Technology (VCQ) and the Vienna Doctoral Program on Complex Quantum Systems (CoQuS) gave the visitors the chance to carry out fascinating experiments in foundations of quantumphysics by themselves or to ask questions eg. about the future of quantum computing.
Quantenphysik: Unglaubliche Verschränkungen
Wie verrückt – zumindest nach herkömmlichen Erfahrungshorizont – die Quantenphysik sein kann, haben nun Physiker um Anton Zeilinger in einem in "Nature Physics" veröffentlichten Experiment demonstriert. Demnach können in der Quantenwelt zukünftige Handlungen Einfluss auf vergangene Ereignisse haben.
On Tuesday, March 27th, 2012, the 2nd lecture of the "Erwin Schrödinger Distinguished Lecture Series" took place at the "Festsaal" of the Austrian Academy of Science.
CoQuS Summer School 2012 - "Quantum Physics meets Gravity"
The Vienna Doctoral Program on Complex Quantum Systems is organizing a summer school on theoretical and experimental research topics at the intersection of quantum physics and general relativity. The school is targeted mainly at doctoral students but is also open to advanced Masters students as well as junior post-docs and will feature several lecture series by international experts.
Single molecules in a quantum movie
The quantum physics of massive particles has intrigued physicists for more than 80 years, since it predicts that even complex particles can exhibit wave-like behaviour – in conflict with our everyday ideas of what is real or local. An international team of scientists now succeeded in shooting a movie which shows the build-up of a matter-wave interference pattern from single dye molecules which is so large (up to 0.1 mm) that you can easily see it with a camera. This visualizes the dualities of particle and wave, randomness and determinism, locality and delocalization in a particularly intuitive way. Seeing is believing: the movie by Thomas Juffmann et al. will be published on March 25 in "Nature Nanotechnology".
Looking at quantum gravity in a mirror
Einstein’s theory of gravity and quantum physics are expected to merge at the Planck-scale of extremely high energies and on very short distances. At this scale, new phenomena could arise. However, the Planck-scale is so remote from current experimental capabilities that tests of quantum gravity are widely believed to be nearly impossible. Now an international collaboration between the groups of Prof. C. Brukner and Prof. M. Aspelmeyer at the University of Vienna and Prof. M. S. Kim at Imperial College London has proposed a new quantum experiment using Planck-mass mirrors. Such an experiment could test certain predictions made by quantum gravity proposals in the laboratory. The findings will be published this week in “Nature Physics”.
Philip Walther was elected as a member of the Global Young Academy
Can't get no diffraction?
A feature on Vienna molecule interferometry in Nature Physics, by Mark Buchanan
more...
Conference QCMC 2012 in Vienna. Apply NOW !
We proudly announce that the webpage for QCMC 2012 (Quantum Communication, Measurement and Computing) in Vienna is online. In the week 30th of July to 3rd of August 2012 the 11th international conference on Quantum Communication, Measurement and Computing (QCMC) will take place in Vienna. About 300 researchers from quantum physics gather to discuss the latest results from the research of quantum information, quantum communication, and quantum metrology. Details of the conference you can find on: www.qcmc2012.org
Experimental delayed-choice entanglement swapping
X. Ma, S. Zotter, J. Kofler, R. Ursin, T. Jennewein, Č. Brukner, and A. Zeilinger
Nature Physics (2012) DOI: 10.1038/NPHYS2294
Pulsed Laser Cooling for Cavity-Optomechnical Resonators
S. Machnes, J. Cerrillo, M. Aspelmeyer, W. Wieczorek, M. B. Plenio, and A. Retzker
Phys. Rev. Lett.108, 153601 (2012)
Preparing Projected Entangled Pair States on a Quantum Computer
M. Schwarz, K. Temme, and F. Verstraete
Phys. Rev. Lett. 108, 110502 (2012)
Real-time single-molecule imaging of quantum interference
T.Juffmann, A.Milic, M.Müllneritsch, P.Asenbaum, A.Tsukernik, J.Tüxen, M.Mayor, O.Cheshnovsky and M.Arndt.
Nature Nanotechnology (2012), DOI: 10.1038/NNANO.2012.34
Macroscopic quantum resonators (MAQRO)
R. Kaltenbaek, G. Hechenblaikner, N. Kiesel, O. Romero-Isart, K.C. Schwab, U. Johann, M. Aspelmeyer
Experimental Astronomy, DOI: 10.1007/s10686-012-9292-3
Quantum State Orthogonalization and a Toolset for Quantum Optomechanical Phonon Control
Probing Planck-scale physics with quantum optics
I. Pikovski, M. R. Vanner, M. Aspelmeyer, M. S. Kim and C. Brukner
Nature Physics (2012) DOI: 10.1038/NPHYS2262
Nanofiber-Based Double-Helix Dipole Trap for Cold Neutral Atoms
D. Reitz and A. Rauschenbeutel
arXiv:1203.0499 [quant-ph]
Nanofiber Fabry-Perot microresonator for non-linear optics and cavity quantum
electrodynamics
C. Wuttke, M. Becker, S. Brückner, M. Rothhardt, and A. Rauschenbeutel
arXiv:1202.1730v1 [quant-ph]
Nanofiber-based optical trapping of cold neutral atoms
E. Vetsch, S. T. Dawkins, R. Mitsch, D. Reitz, P. Schneeweiss, and A. Rauschenbeutel
arXiv:1202.1494v1 [quant-ph]
Hanbury Brown and Twiss correlations across the Bose-Einstein condensation threshold
A. Perrin, R. Bücker, S. Manz, T. Betz, C. Koller, T. Plisson, T. Schumm and J. Schmiedmayer
Nature Physics(2012),doi:10.1038/nphys2212
Finite-temperature mutual information in a simple phase transition
J. Wilms, J. Vidal, F. Verstraete, and S. Dusuel,
arXiv: 1111.5225v2
Numerical Contraction of the Tensor Network generated by the Algebraic Bethe Ansatz
V. Murg, V. E. Korepin, and F. Verstraete
arXiv:1201.5636v2
The Algebraic Bethe Ansatz and Tensor Networks
V. Murg, V. E. Korepin, and F. Verstraete
arXiv:1201.5627v1
"Demonstration of Blind Quantum Computing"
S.Barz, E.Kashefi, A.Broadbent, J.Fitzsimons, A.Zeilinger, P.Walther
Science, Vol. 335, no. 6066, pp. 303-308 (2012)
Fabrication of GaAs-on-insulator via low temperature wafer bonding and sacrificial etching of Ge by XeF2"
Y. Bai, G. D. Cole, M. T. Bulsara, and E. A. Fitzgerald
Journal of the Electrochemical Society, vol. 159, no. 2, pp. H183-H190, 2012
New Prospects for de Broglie Interferometry : Grating Diffraction in the Far-Field and Poisson’s Spot in the Near-Field
T. Juffmann, S. Nimmrichte, M.Arndt, H. Gleiter, K. Hornberger
Foundations of Physics, (2011), DOI 10.1007/s10701-010-9520-5
Controlling quantum information processing in hybrid systems on chips
G. Bensky, R.Amsüss, J.Majer, D. Petrosyan, J.Schmiedmayer, G.Kurizki
Quantum Information Processing 10, 1037-1060 (2011)