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.


ERC Consolidator Grant to Markus Aspelmeyer

Quantum Physicist Markus Aspelmeyer received an ERC Consolidator Grant.


Petition "Wissenschaft ist Zukunft" ├╝bergeben

Im Zuge eines Gesprächstermins bei Staatssekretär Jochen Danninger wurden die mehr als 50.000 Unterstützungserklärungen der Petition "Wissenschaft ist Zukunft" im Finanzministerium an die Politik übergeben.



Bringing bonded mirrors out of the laboratory and into the light

Quantum physicists at the University of Vienna present yet another example that fundamental research can create unexpected technological innovations. The start-up “Crystalline Mirror Solutions,” or CMS, is focused on the manufacturing of high-performance mirrors for optical precision measurement.


Cooling by measurement

Observing a physical quantity without disturbing it is a key capability for the control of individual quantum systems. Such back-action-evading or quantum non-demolition measurements were first introduced in the 1970s for gravitational wave detection, and now such techniques are an indispensable tool throughout quantum science.

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Latest publications 


Coherent Cancellation of Photothermal Noise in GaAs/Al0.92Ga0.08As Bragg Mirrors

T. Chalermsongsak, E. D. Hall, G. D. Cole, D. Follman, F. Seifert, K. Arai, E. K. Gustafson, J. R. Smith, M. Aspelmeyer, R.X. Adhikari
arXiv:1506.07088v1 [physics.optics]


Optimal state estimation for cavity optomechanical systems
W. Wieczorek, S. G. Hofer, J. Hoelscher-Obermaier, R. Riedinger, K. Hammerer, M. Aspelmeyer
PRL 114, 223601 (2015)


Sensing earth’s rotation with a helium–neon ring laser operating at 1.15  μm
K. U. Schreiber, R. J. Thirkettle, R. B. Hurst, D. Follman, G. D. Cole, M. Aspelmeyer, and J.-P. R. Wells

Optics Letters 40, 1705–1708 (2015)


Entanglement-enhanced time-continuous quantum control in optomechanics

S. G. Hofer, Klemens Hammerer
Physical Review A 91, 033822 (2015)


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