The main research objective of our group is to investigate quantum effects of nano- and microscale systems and their implications for the foundations and applications of quantum physics. Our goal is to gain access to a completely new parameter regime for experimental physics with respect to both size and complexity.

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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 at the University of Vienna and at Imperial College London has proposed a new quantum experiment using Planck-mass mirrors.

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Award of Excellence and recognition award to Simon Gröblacher

After the PhD Thesis Prize in Quantum Electronics and Optics of the European Physical Society Simon Gröblacher received two more prizes for his work "Quantum opto-mechanics with micromirrors": the "Award of Excellence" of the Austrian Federal ministry of Science and Research (BMWF) and the recognition award for Science of Lower Austria.
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"Von einigen Größen in der kleinen Welt der Quanten"

Last week several national quantum physicists published in international renowned journals. Not that unusal shows a glance to the community.

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Laser Light to Cool Object to Quantum Ground State

For the first time, researchers at the California Institute of Technology (Caltech), in collaboration with a team from the Vienna Center for Quantum Science and Technology (VCQ), have managed to cool a miniature mechanical object to its lowest possible energy state using laser light.

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Quantum behavior with a flash

Just as a camera flash illuminates unseen objects hidden in darkness, a sequence of laser pulses can be used to study the elusive quantum behavior of a large, ‘macroscopic' object. This method provides a novel tool of unprecedented performance for current experiments that push the boundaries of the quantum world to larger and larger scales.

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Latest publication 

 

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)

 

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

M. R. Vanner, M. Aspelmeyer, M. S. Kim
arXiv:1203.4525v1 [quant-ph]

 

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

 
"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

 

Festschrift Dedicated to Daniel Greenberger and Helmut Rauch - Editorial

M. Aspelmeyer,  Č.Brukner, A.Zeilinger

Foundations of Physics, Volume 42, Issue 1, 2012

 

 

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