Fakultät für Physik Gravitationsphysik A-1090 WIEN, BOLTZMANNGASSE 5, AUSTRIA EINLADUNG Joint Theory Seminar zum Vortrag von Markus Arndt (Univ. Wien) über „Quantum Optics with Molecules and Nanoparticles: Opportunities and open debates around gravity physics and cosmology“ ABSTRACT: I will review the state of the art in atom and macromolecule interferometry to stimulate discussions on quantum physics, gravity and cosmology. A large part of the talk will be dedicated to open questions the correct answers to which I do not know at all: Do wave functions collapse ‘objectively’ when objects become massive and delocalized over large periods of time? How would this influence the temperature of the universe? Why does mass do if nobody watches? How could the universe not watch at all? How will the gravitational warp of space-time modify the linearity of Schrödinger’s wave mechanics for very massive and highly delocalized clusters? Is there any chance of observing fluctuations of space time in matter-wave interferometry? Can we use nanoparticle matter-waves for gravitational wave detection? What do we learn about the weak equivalence principle and possible modifications of the standard model when we compare the matter-wave fringe shift of macromolecules and single atoms in free fall? Which quantum particle is best suited for probing Non-Newtonian gravity at short distances? Can matter-wave interferometry serve as a detector for dark matter at low energy? What is needed for serious experimental tests? Zeit: Donnerstag, 13.10.2016, 14.00 Ort: Arbeitsgruppe Gravitation, Währinger Straße 17, Victor-Franz-Hess Hörsaal, VERA - 1. Stock gez.: P. Chrusciel, A. Hoang, S. Fredenhagen
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