Quantum Nanophysics & Molecular Quantum Optics

Our group explores new avenues to prepare and utilize quantum phenomena in complex nanoscale systems, from small molecules and clusters over proteins to large dielectric nanoparticles. Our experiments overlap with aspects of philosophy, when we probe the nature of reality in matter-wave delocalization and tests of quantum linearity. We share methods with physical chemistry and molecular biology in our developments of molecular beam and detection methods for complex organic, biological and dielectric objects, that study a mass range from 100 amu to about 1,000,000 amu. Our focus on biomolecular beams aims at rendering also vitamins, peptides, proteins and DNA strands accessible to advanced quantum delocalization studies. In our lab we have realized three matter-wave experiments that shall allow us to explore new ways of realizing universal beam splitters for quantum experiments with objects in this entire mass range.  This will also open new avenues to quantum assisted metrology and sensing. We explore new aspects of optomechanics in our studies on cavity cooling of dielectric nanoparticles that shall prepare quantum interference experiments in an unprecedented mass range.

QNP News Ticker

  • 23. Nov 2015, Congratulations to Nadine Dörre. She will be awarded the L'Oréal Fellowship for Women in Science at the Austrian Academy of Sciences. Only 36 Austrian women have been selected for this distinction since 1998.  

  • 5 Nov., 2015, We had an inspiring visit to Anton Paar's headquarters in Graz

  • 26 October, 2015: Brand et al. Ann. Phys. 527, 580 (2015)

  • October 2015,
    Sandra Eibenberger receives a FWF Schrödinger Fellowship to work at Harvard University.

  • 2015, Our molecular diffraction experiments discussed in FORBES
  • April 2015, Welcome James Millen, PhD, arriving from UCL London.

  • March 19, 2015: Congratulations to Dr. Sandra Eibenberger, for completing her doctorate with distinction.
  • January 2015, Publication by Dörre et al. JOSA B 
  • Janury 2015, Moritz Hambach joins our team from Imperial College London 
  • December 19, 2014: Congratulations to Dr. Philipp Schmid!
    for completing his doctorate with distinction.

  • December 19, 2014: Congratulations to Dr. Peter Asenbaum.
    for being awarded the Hans-Thirring Prize for his doctoral thesis
  • December 10, 2014: Congratulations to Dr. Stefan Nimmrichter for his Award of Excellence for his doctoral thesis  
  • December 2014: Congratulations to Dr. Mag. Mag. Lukas Mairhofer !
    for completing his doctorate in philosophy with distinction
  • December 2014: Congratulations to Dr. Philipp Haslinger  
    for being
    awarded an FWF Erwin Schrödinger Fellowship
  • November 2014: Congratulations to Christian Knobloch, MSc
    for successfully completing his Master degree
  • Publication by Emary et al. Phys. Rev. A 90, 042114-1 (2014)

  • September 26, 2014: Congratulations to Dr. Peter Asenbaum for completing his doctorate with distinctions.  
  • September 2014, Congratulations to Mag. Sandra Eibenberger's
    oQuS Poster award
  • August 2014: Congratulations to Sandra Eibenberger for being awarded the BOLOGNA 2014 Josef Pliva Prize  at the HRMS 23 Conference

  • July 30, 2014: Congratulatons to Ugur Sezer, MSc! He completed his master degree with distinctions. 

  • July 2014: Congratulations to Christian Brand He has been awarded a Feodor Lynen Postdoc Fellowship by the Alexander von Humboldt Foundation 
  • 6-8 July 2014: Group Retreat in Weissenkirchen, productive scientific discussions and real fun.
  • Publication in Phys. Today 67, 30-36, (2014)
    selected for PARITY by the Japanese Editors
  • May 2014: Markus Arndt has been elected as a
    Corresponding Member of the Austrian Academy of Sciences (ÖAW).

  • April 2014: Sandra Eibenberger in a report on ORF ZIB , April 2014

  • Arndt & Hornberger: Insight review in Nature Physics 10, 271-277 (2014)
  • 2014, Stefan Nimmrichter's PhD thesis selected as a
    Springer thesis: 'Recognizing Outstanding Ph.D. Research'

  • 2014 Welcome Stephan Pribitzer from ETH Zürich for a 4 month internship.

  • March 2014: Video Clip on Cavity Cooling by Peter Asenbaum and Stefan Kuhn highlighted in the video gallery of the APS spring meeting.


  • February 2014: Congratulations to Nadine Dörre for her SASP 2014 Poster prize
  • January 2014: Stefan Gerlich in Atomium Culture

  • January 2014: Markus Arndt selected as an Outstanding Referee for the
    APS journals

  • December 2013: Nadine Dörre the science magazine 'Falter, Heureka'

  • December 6, 2013: Publication in Praxis der Naturwissenschaften 8, 31 - 36 (2013)

  • December 4, 2013: Markus Arndt receives the Prize of the City of Vienna 2013 
    for Natural Sciences and Technology.
  • November 2013: 4 years after publication Quantum Meets Biology is still the most read article of HFSP journal (article views)

  • October 29, 2013: Congratulations to Dr. Stefan Nimmrichter
    for completing his Doctorate with distinction

  • October 15, 2012: Welcome Dr. Christian Brandt from the University of Düsseldorf
  • September 16, 2013: Music for an optical interferometer
  • September 2013: Congratulations to Stefan Kuhn for his CoQuS Poster 
  • September 5, 2013: Congratulations to Dr. Michele Sclafani for completing his Doctorate with distinction
  • June 1, 2013, welcome Sasha Sproch, from Franklin W. Olin College of Engineering, Boston/MA

  • June 1, 2013: Welcome Dr. Lisa Wörner, from the MPI for Extraterrestrial Physics in Garching 
  • January 31, 2013, Congratulations to Dr. Thomas Juffmann for completing
    his Doctorate with distinction!

  • December 2012, ERC Advanced Grant awarded to Markus Arndt 
  • April 17, 2012, Feature on SSPD detection in Superconductor Week
  • The 2012 AMMRF micrograph award goes to Thomas Juffmann

  • Publication: Nanotechnology 23, 065501 (2012)

  • Publication: Procedia Computer Science 2011, doi:10.1016/j.procs.2011.12.024
  • November 8, 2011: Proposal for testing GRWP featured in the UK The Telegraph
  • Publication in: Eur. J. Org. Chem., 25 4823 - 4833 (2011)
    Highlighted by ChemistryViews,  ...
  • July 5, 2011: Publication in New J. Phys. 13, 075002 (2011).
  • June 2011: Congratulations to Sandra Eibenberger for her Dr. Maria Schaumayer prize for women in science
  • 11-13.5.2011 ESF meeting on Casimir forces with 20 participants from 7 countries, hosted by QNP
  • April 27, 2011 Publication in Phys. Rev. A 83, 043621 (2011).
  • April 25, 2011 Publication in New J. Phys. 13, 043033 (2011), chosen as 'IOP select'