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The Kapitza-Dirac-Talbot-Lau interferometer (KDTLI) is a unique experimental setup to show quantum interference of large molecules and to measure various properties of the molecules.
The experiment is conducted in an international collaboration of researchers. The researchers have different areas of expertise ranging from theoretical and experimental physics to chemistry.
Under the supervision of Prof. Markus Arndt Bachelor, Master and PhD students as well as several post-doctoral researchers have been involved in the project.
The experiment was started in 2006. However, the research interests have evolved since the early days. The first objective was to show quantum interference with massive molecules. Now, experiments are conducted that go beyond the detection of quantum interference; researchers examine internal properties of molecules by using the quantum interference as a tool for their measurements.
The researchers have, so far, investigated the role of electrical properties of the internal structure and conformational changes as well as optical properties and much more.
Each scientist contributes something new to the project by their individual approach.
1. Demonstration of the KDTLI and interference of molecules with increasing masses
S. Eibenberger, S. Gerlich, M. Arndt, M. Mayor and J. Tüxen
Matter-wave interference with particles selected from a molecular library with masses exceeding 10 000 amu
Phys. Chem. Chem. Phys., 15, 14696 (2013)
S. Gerlich, S. Eibenberger, M. Tomandl, S. Nimmrichter, K. Hornberger, P. J. Fagan, J. Tüxen, M. Mayor, and M. Arndt
Quantum interference of large organic molecules
Nature Communications 2, 263 (2011)
K. Hornberger, S. Gerlich, H. Ulbricht, L. Hackermüller, S. Nimmrichter, I. V. Goldt, O. Boltalina and M. Arndt
Theory and experimental verification of Kapitza-Dirac-Talbot-Lau interferometry
New J. Phys. 11 (2009) 043032.
S. Gerlich, L. Hackermüller, K. Hornberger, A. Stibor, H. Ulbricht, F. Goldfarb, T. Savas, M. Müri, M. Mayor and M. Arndt
A Kapitza-Dirac-Talbot-Lau interferometer for highly polarizable molecules
Nature Physics 3, 711 (2007)
2. Quantum assisted metrology
S. Eibenberger, X. Cheng, J.P. Cotter, M. Arndt
Absolute absorption cross sections from photon recoil in a matter-wave interferometer
Phys. Rev. Lett. 112, 250402 (2014)
S. Eibenberger, S. Gerlich, M. Arndt, J. Tüxen and M. Mayor
Electric moments in molecule interferometry
New J. Phys. 13, 043033 (2011)
M. Gring, S. Gerlich, S. Eibenberger, S. Nimmrichter, T. Berrada, M. Arndt,H. Ulbricht, K. Hornberger, M. Müri, M. Mayor, M. Boeckmann and N. Doltsinis
Influence of conformational molecular dynamics on matter wave interferometry
Phys. Rev. A 81, 031604(R) (2010)
J. Tüxen, S. Gerlich, S. Eibenberger, M. Arndt and M. Mayor
Quantum interference distinguishes between constitutional isomers
Chem. Comm. 46, 4145 -4147 (2010)
S. Gerlich, M. Gring, H. Ulbricht, K. Hornberger, J. Tüxen, M. Mayor and M. Arndt
Matter-Wave Metrology as a Complementary Tool for Mass Spectrometry Angew.
Chem. Int. Ed. 47, 6195 -6198, (2008)
L. Hackermüller, K. Hornberger, S. Gerlich, M. Gring, H. Ulbricht and M. Arndt
Optical polarizabilities of large molecules measured in near ‐ field interferometry
Appl. Phys. B 89 , 469 – 473 (2007)
3. Review article on quantum interference of molecules and clusters
K. Hornberger, S. Gerlich, P. Haslinger, S. Nimmrichter and M. Arndt
Colloquium: Quantum interference of clusters and molecules
Rev. Mod. Phys. 84, 157–173 (2012) arXiv:1109.5937v1