Share This Author
Metallic and Insulating Phases of Repulsively Interacting Fermions in a 3D Optical Lattice
This work was able to directly measure the compressibility of the quantum gas in the trap using in situ imaging and independent control of external confinement and lattice depth, to demonstrate the potential to model interacting condensed-matter systems using ultracold fermionic atoms.
Decoherence of matter waves by thermal emission of radiation
Good quantitative agreement is found between the experimental observations and microscopic decoherence theory of matter wave interferometer experiments in which C70 molecules lose their quantum behaviour by thermal emission of radiation.
Fermionic transport and out-of-equilibrium dynamics in a homogeneous Hubbard model with ultracold atoms
The transport measurements of an interacting fermionic quantum gas in an optical lattice provide a direct experimental realization of the Hubbard model—one of the central models for interacting…
Matter-wave interferometer for large molecules.
- B. Brezger, L. Hackermüller, S. Uttenthaler, J. Petschinka, M. Arndt, A. Zeilinger
- PhysicsPhysical review letters
- 26 February 2002
A near-field Talbot-Lau interferometer for C70 fullerene molecules using three free-standing gold gratings of 1 microm period and a transversally incoherent but velocity-selected molecular beam achieves an interference fringe visibility of 40% with high count rate.
Collisional decoherence observed in matter wave interferometry.
- K. Hornberger, S. Uttenthaler, B. Brezger, L. Hackermüller, M. Arndt, A. Zeilinger
- PhysicsPhysical Review Letters
- 14 March 2003
The practical limits of matter wave interferometers at finite gas pressures are explored and the required experimental vacuum conditions for interferometry with even larger objects are estimated.
Time-resolved observation of coherent multi-body interactions in quantum phase revivals
This work demonstrates the presence of effective multi-body interactions in a system of ultracold bosonic atoms in a three-dimensional optical lattice, emerging through virtual transitions of particles from the lowest energy band to higher energy bands, using an atom interferometric technique.
Wave nature of biomolecules and fluorofullerenes.
The fluorofullerenes therefore set the new mark in complexity and mass (1632 amu) for de Broglie wave experiments, exceeding the previous mass record by a factor of 2.2.
Theory and experimental verification of Kapitza–Dirac–Talbot–Lau interferometry
Kapitza–Dirac–Talbot–Lau interferometry (KDTLI) has recently been established for demonstrating the quantum wave nature of large molecules. A phase space treatment permits us to derive closed…
Quantum decoherence of phonons in Bose–Einstein condensates
We apply modern techniques from quantum optics and quantum information science to Bose–Einstein condensates (BECs) in order to study, for the first time, the quantum decoherence of phonons of…