ORC Seminars 2011

Molecule interferometry

Speaker: Hendrik Ulbricht, University of Southampton, Physics and Astronomy

Date: 19 January

Time: 2pm

Venue: Mountbatten Seminar Room

Abstract:

I will report on molecule interferometry experiments. The motivation for de Broglie interference of heavy particles is both, to the foundations of quantum mechancis by invesitgating the quantum to classical transitions and the use of interferometric techniques for applications as for example: molecule metrology, molecule sorting, molecule quantum interference lithography and investigations of van der Walls/Casimir-Polder interactions.  The centre-of-mass interferometry is not affected by internal excitation of the molecules as impressively demonstrated by our experiments. If however internal state dynamics is coupled to the centre-of-mass motion by electric or optical fields, the interference pattern is changed. I will explain our experiment on mapping the conformational change of hot molecules to its centre of mass motion. Cooling the motion and manipulation of complex partciles to increase beam coherences and phase-space density and decreacing speed is essential for interference expeirments and I will illustrate ideas and preliminary experimental results for possible cooling and decelleration schemes for large particles. I will emphasise the status of the develpoment of the Southampton molecule interferometer.

Biography:

 

with Oct 2008

Reader at the School of Physics and Astronomy, University of Southampton, UK

2006 - 2008

Senior researcher and Universitaetsassistent at University of Vienna, with Markus Arndt, Matter- wave interferometry, Molecule metrology

2005 - 2006

Senior - Postdoc at University of Vienna, with Markus Arndt. Gas-phase generation of large bio-molecules

2004 - 2005

Postdoc at Vanderbilt University, Nashville, USA, with Tobias Hertel, Fs-pump-probe spectroscopy of carbon nanotubes

2003 - 2004

Postdoc at the Fritz-Haber-Institute, Berlin : Gerhard Ertl, 2-photon-photoemission of silver, Transport measurements at carbon nanotubes

2000 - 2003

PhD (FU Berlin) at Fritz-Haber-Institute of the MPG, Berlin: with Tobias Hertel and Gerhard Ertl, Interactions of gases with carbon nanotubes and graphite, Transport measurements

2000

Diploma Work at MPI for Gravitational Physics: with Renate Loll,The Holographic Principle in Gravity

1994 - 1999

Study of Physics (TU Berlin, University of Vienna)

1989 - 1992

Professional training (bricklayer)

Copyright University of Southampton 2006