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Quantum Optics and Quantum Mechanics of Time
Contact Person: Andreas Ruschhaupt


One research goal is the theoretical development of new and the improvement of existing laser-based devices to prepare and control single-atom and many-atom internal and translational states. Especially, this includes applications and improvements of the atom diode (a laser-based device that lets the atom pass solely in one direction) and devices for velocity selection.

Another research goal is to discover quantum time effects, i.e. effects arising from a quantum-mechanical treatment of time observables. We are examining the influence of a quantum description of the photonic arrival time in quantum communication schemes and the arrival time of massive particles.

Topics         Researchers         Collaboration Partners         Funding         Selected Recent Publications



Research Topics

Speed-up of Atomic State Manipulations

Quantum Catcher

Single-Photon Sources and Particle Beams

Atom diode and its Applications

Velocity Selection and Preparation



Researchers


Jun.-Prof. Dr. Andreas Ruschhaupt

Dr. Jukka Kiukas

Dipl.-Phys. Sönke Schmidt

Vijah Pal Singh



Collaboration Partners



Funding

    Logo: DAAD - Deutscher Akademischer Austauschdienst / German Academic Exchange Service
   Acciones Integradas Hispano-Alemanas 2007/2008

    Logo: DFG
   Control Devices in Atom Optics 2008-2010

    Logo: BMBF
   EPHQUAM Project


Selected Recent Publications

  • J. Kiukas, A. Ruschhaupt and R. F. Werner
    Full Counting Statistics of Stationary Particle Beams
    arXiv:1009.1109

  • X. Chen, I. Lizuain, A. Ruschhaupt, D. Guéry-Odelin and J. G. Muga
    Shortcut to Adiabatic Passage in Two- and Three-Level Atoms
    Physical Review Letters 105 (2010) 123003

  • E. Y. Sherman, J. G. Muga, V. K. Dugaev and A. Ruschhaupt
    Strong electron spin-Hall effect by a coherent optical potential
    Semiconductor Science and Technology 25 (2010) 0905004

  • X. Chen, A. Ruschhaupt, S. Schmidt, A. del Campo, D. Guéry-Odelin and J. G. Muga
    Fast Optimal Frictionless Atom Cooling in Harmonic Traps: Shortcut to Adiabaticity
    Physical Review Letters 104 (2010) 063002

  • J. G. Muga, X. Chen, A. Ruschhaupt and D. Guéry-Odelin
    Frictionless dynamics of Bose-Einstein condensates under fast trap variations
    Journal of Physics B: At. Mol. Opt. Phys. 42 (2009) 241001

  • J. Kiukas, A. Ruschhaupt and R. F. Werner
    Tunneling Times with Covariant Measurements
    Foundation of Physics 39 (2009) 829-846

  • S. Schmidt, J. G. Muga and A. Ruschhaupt
    Stopping particles of arbitrary velocities with an accelerated wall
    Physical Review A 80 (2009) 024036

  • A. Ruschhaupt, J. G. Muga and G. C. Hegerfeldt
    Detector models for the quantum time of arrival
    Muga, J. G., Ruschhaupt, A. & del Campo, A. (ed.), Time in Quantum Mechanics - Vol. 2 Springer, (2009)

  • A. Ruschhaupt and J. G. Muga
    Control of atomic motion with an atom-optical diode on a ring
    Journal of Physics B: At. Mol. Opt. Phys. 41 (2008) 205503



Last modified: Thu, 14 Oct 2010

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Edited by Andreas Ruschhaupt