member photo
Prof. Dr. Giovanna Morigi
Research Group Leader
Heisenberg Professorship (German Research Foundation)


.(JavaScript must be enabled to view this email address)
Phone: (0) 681-302-57472
Office: E2.6 - Room 4.20


Personal Website:

http://qphys.uni-saarland.de/index.php/giovanna_morigi/">http://qphys.uni-saarland.de/index.php/giovanna_morigi/


Research interests:

Theoretical Atomic, Molecular, and Optical Physics
Statistical mechanics of ultracold atoms in external fields
Quantum optics with semiconductor devices

Selected publications:

  • Structural defects in ion crystals by quenching the external potential: the inhomogeneous Kibble-Zurek mechanism,
    A. del Campo, G. De Chiara, G. Morigi, M. B. Plenio and A. Retzker,
    Phys. Rev. Lett. 105, 075701 (2010).
  • Cooling carbon nanotubes to the phononic ground state with constant electron current,
    Stefano Zippilli, Giovanna Morigi and Adrian Bachtold,
    Phys. Rev. Lett. 102, 096804 (2009).
  • Crystallization of strongly interacting photons in a nonlinear optical fiber,
    D. E. Chang, V. Gritsev, G. Morigi, V. Vuletic, M. D. Lukin and E. A. Demler,
    Nature Phys. 4, 884-889 (2008).
  • Entangled light pulses from single cold atoms,
    Giovanna Morigi, Juergen Eschner, Stefano Mancini and David Vitali,
    Phys. Rev. Lett. 96 023601 (2006).
  • Eigenmodes and thermodynamics of a Coulomb chain in a harmonic potential,
    Giovanna Morigi and Shmuel Fishman,
    Phys. Rev. Lett. 93, 170602 (2004).
Mario Collura
Postdoctoral Researcher

.(JavaScript must be enabled to view this email address)





Shraddha Sharma
Postdoctoral Researcher

.(JavaScript must be enabled to view this email address)
Phone: (0) 681-302-3404
Office: E2.6 - Room 1.22




Research interests:

Quantum Optics
Statistical Physics


Timo Felser
PhD student

.(JavaScript must be enabled to view this email address)
Phone: (0) 681-302-2402
Office: E2.6 - Room 1.21





member photo
Luigi Giannelli
PhD student

.(JavaScript must be enabled to view this email address)
Phone: (0) 681-302-3777
Office: E2.6 - Room 4.21




Research interests:

Hybrid Quantum Systems
Quantum Information
Quantum Optics

Selected publications:

Simon Jäger
PhD student

.(JavaScript must be enabled to view this email address)
Phone: (0) 681-302-3404
Office: E2.6 - Room 1.22





Alexey Konovalov
PhD student

.(JavaScript must be enabled to view this email address)
Phone: (0) 681-302-6590
Office: E2.6 - Room 4.28




Research interests:

Atomic spectroscopy
Many body quantum systems
Quantum chemistry


Rebecca Kraus
PhD student

.(JavaScript must be enabled to view this email address)
Phone: (0) 681-302-3777
Office: E2.6 - Room 4.21




Research interests:

Quantum Optics
Cavity Quantum Electrodynamics
Quantum Phase Transitions


Selected publications:

  • Localization transition in the presence of cavity backaction,
    Katharina Rojan, Rebecca Kraus, Thomás Fogarty, Hessam Habibian, Anna Minguzzi, and Giovanna Morigi
    Phys. Rev. A 94, 013839 (2016)
Francesco Rosati
PhD student

.(JavaScript must be enabled to view this email address)
Phone: (0) 681-302-6590
Office: E2.6 - Room 4.28




Research interests:

Quantum Optics
Cold Atoms
Many body systems

Frederic Folz
Master student

.(JavaScript must be enabled to view this email address)
Phone: (0) 681-302-57476
Office: E2.6 - Room 1.21




Research interests:

Quantum Optics

Christian Otto
Master student





Tom Schmit
Master student

.(JavaScript must be enabled to view this email address)
Phone: (0) 681-302-4785
Office: E2.6 - Room 1.23b




Research interests:

Quantum Optics
Optimal Control Theory


Susanna Trampert
Secretary

.(JavaScript must be enabled to view this email address)
Phone: (0) 681-302-58017
Office: E2.6 - Room 3.01





Prof. Dr. Simone Montangero
Heisenberg Fellow

.(JavaScript must be enabled to view this email address)





member photo
Dr. Marc Bienert
Research Associate

.(JavaScript must be enabled to view this email address)

[Personal CV]    




Research interests:

Quantum Optomechanics
Light scattering, propagation and mechanical effects of light
Atom Optics and Cavity QED

Selected publications:

  • Opacity of electromagnetically induced transparency for quantum fluctuations,
    P. Barberis-Blostein and M. Bienert,
    Phys. Rev. Lett. 98, 033602 (2007).
  • Resonance fluorescence of a cold atom in a high finesse resonator,
    M. Bienert, J.M. Torres, S. Zippilli and G. Morigi,
    Phys. Rev. A 76, 013410 (2007).
  • Motional stability of the quantum kicked rotor: A fidelity approach,
    F. Haug, M. Bienert, W.P. Schleich, T.H. Seligman and M.G. Raizen,
    Phys. Rev. A 71, 043803 (2005).
member photo
Andreas Buchheit
PhD student

.(JavaScript must be enabled to view this email address)
Phone: (0) 681-302-6590
Office: E2.6 - Room 4.28




Research interests:

  • Quantum Optics and Condensed Matter Physics

  • Topological Phases of Matter

  • Commensurate-Incommensurate Transitions

  • Optomechanics in trapped crystals of ions


    Selected publications:

  • Master equation for high-precision spectroscopy ,
    Andreas Buchheit & Giovanna Morigi
    Phys. Rev. A 94, 042111 (2016)

  • Critical Analysis of the Born-Markov Master Equation,
    Andreas Buchheit & Giovanna Morigi
    Master's thesis (2015)
  • Dynamik von lasergetriebenen Atomen,
    Andreas Buchheit & Giovanna Morigi
    Bachelor's thesis (2013)

    Cooperation partners

  • Eugene Demler
    Department of Physics, Harvard University, Cambridge, MA 02138, USA
  • Haggai Landa
    Institut de Physique Théorique, Université Paris-Saclay, CEA, CNRS, France
  • Cecilia Cormick
    IFEG, CONICET and Universidad Nacional de Cordoba
  • Thomas Fogarty
    Okinawa Institute of Science and Technology, Japan
  • member photo
    Malte Henkel, Prof. Dr.
    Guest professor

    .(JavaScript must be enabled to view this email address)
    Phone: (0) 681-302-57476 (Saarbrücken); 0033 - (0)3.72.74.57.52 (Nancy)
    Office: E2.6 - Room 1.21

    Affiliation:

    in Nancy:

    Prof. Dr. Malte Henkel
    Equipe 106
    Institut Jean Lamour
    Faculté des Sciences
    Université de Lorraine
    BP 70239, boulevard des aiguillettes
    F-54506 Vandoeuvre les Nancy Cedex
    France



    Group Website:

    Lukas Himbert
    Master student

    .(JavaScript must be enabled to view this email address)
    Phone: (0) 681-302-4785
    Office: E2.6 - Room 1.23b





    member photo
    Dr. Florian Cartarius
    Postdoctoral Researcher

    .(JavaScript must be enabled to view this email address)
    Phone: (0) 681-302-6590
    Office: E2.6 - Room 4.28




    Research interests:

    Long range interactions
    Quantum Gases
    Ion Coulomb Crystals


    Selected publications:

    • Structural transitions of nearly second order in classical dipolar gases,
      Florian Cartarius, Giovanna Morigi, and Anna Minguzzi
      Phys. Rev. A 90, 053601 (2014)
    • Stability and dynamics of ion rings in linear multipole traps,
      Florian Cartarius, Cecilia Cormick, and Giovanna Morigi
      Phys. Rev. A 87, 013425 (2013)
    member photo
    Susanne Blum
    PhD student

    .(JavaScript must be enabled to view this email address)
    Phone: (0) 681-302-3777
    Office: E2.6 - Room 4.21




    Research interests:

    Quantum optics
    Parametric down conversion
    Open quantum systems and suppression of decoherence


    Selected publications:

    Nahuel Freitas
    Postdoctoral Researcher

    .(JavaScript must be enabled to view this email address)
    Phone: (0) 681-302-3404
    Office: E2.6 - Room 1.22




    Research interests:

    Quantum thermodynamics
    Quantum information
    Quantum open systems
    Statistical mechanics


    member photo
    Dr. Sascha Wald
    PhD student

    .(JavaScript must be enabled to view this email address)
    Phone: (0) 681-302-57476
    Office: E2.6 - Room 1.21





    Tim Keller
    Graduate student

    .(JavaScript must be enabled to view this email address)
    Phone: (0) 681-302-3777
    Office: E2.6 - Room 4.21





    member photo
    Dr. Katharina Rojan
    PhD Student

    .(JavaScript must be enabled to view this email address)
    Phone: (0) 681-302-3404
    Office: E2.6 - Room 1.22




    Research interests:

    Quantum Optics
    Cavity Quantum Electrodynamics
    Optimal Control Theory

    Selected publications:

    • Arbitrary-quantum-state preparation of a harmonic oscillator via optimal control,
      Katharina Rojan, Daniel M. Reich, Igor Dotsenko, Jean-Michel Raimond, Christiane P. Koch, and Giovanna Morigi
      Phys. Rev. A 90, 023824 (2014)
    • Optimale Kontrolle des Quantenzustandes eines Mikrowellenfeldes,
      Katharina Rojan, Daniel Reich, Christiane Koch & Giovanna Morigi
      Masterarbeit (2013)
    • Dissipative Dynamik eines Mikrowellenresonators gekoppelt an einen Strahl von Atomen,
      Katharina Rojan & Giovanna Morigi
      Bachelorarbeit (2011)
    member photo
    Dr. Oxana Mishina
    External member

    .(JavaScript must be enabled to view this email address)

    [Personal CV]    




    Research interests:

    Quantum optics and atomic physics
    Quantum memory for light
    Quantum information in continuous variables

    Selected publications:

    • Cavity cooling of an atomic array,
      O. S. Mishina,
      New J. Phys. 16 033021 (2014),doi:10.1088/1367-2630/16/3/033021, e-print arxiv:1401.4961.
    • Electromagnetically induced transparency in inhomogeneously broadened Lambda-transition with multiple excited levels,
      O.S. Mishina, M. Scherman, P. Lombardi, J. Ortalo, D. Felinto, A.S. Sheremet, A. Bramati, D.V. Kupriyanov, J. Laurat and E. Giacobino,
      Phys. Rev. A 83, 053809 (2011), e-print arXiv:1101.6039v1.
    • Spectral theory of quantum memory and entanglement via Raman scattering of light by an atomic ensemble,
      O.S. Mishina, D.V. Kupriyanov, J.H. Müller and E.S. Polzik,
      Phys. Rev. A 75, 042326 (2007), e-print arXiv:quant-ph/0611228v2.
    member photo
    Dr. Stefan Schütz
    PhD student

    .(JavaScript must be enabled to view this email address)
    Phone: (0) 681-302-3777
    Office: E2.6 - Room 4.21




    Research interests:

    Quantum Optics
    Cavity Quantum Electrodynamics
    Self-organization of atoms in cavity fields


    Selected publications:

    member photo
    Ralf Betzholz
    PhD student

    .(JavaScript must be enabled to view this email address)
    Phone: (0) 681-302-3404
    Office: E2.6 - Room 1.22




    Research interests:

    Light scattering of color centers in crystals
    Resonance fluorescence of trapped atoms
    Cavity QED
    Optomechanics


    Selected publications:

    • Phenomenological theory of the giant magnetoimpedance of composite wires,
      Ralf Betzholz, Haibin Gao, Zhenjie Zhao, and Uwe Hartmann
      EPL 101, 17005 (2013)
      • Quantum optical master equation for solid-state quantum emitters,
        Ralf Betzholz, Juan Mauricio Torres, and Marc Bienert
        Phys. Rev. A 90, 063818 (2014)
        • Suppression of Rabi oscillations in hybrid optomechanical systems,,
          Timo Holz, Ralf Betzholz, and Marc Bienert
          Phys. Rev. A 92, 043822 (2015)
          • Resonance fluorescence of a laser-cooled atom in a non-harmonic potential,
            Ralf Betzholz and Marc Bienert
            Eur. Phys. J. D (2016) 70: 215
          • Laser and cavity cooling of a mechanical resonator with a nitrogen-vacancy center in diamond,
            Luigi Giannelli, Ralf Betzholz, Laura Kreiner, Marc Bienert, and Giovanna Morigi
            Phys. Rev. A 94, 053835 (2016)
    member photo
    Jens D. Baltrusch
    PhD student

    .(JavaScript must be enabled to view this email address)
    Phone: (0) 681-302-6590
    Office: E2.6 - Room 4.28




    Research interests:

    Quantum optics with trapped ions
    Statistical mechanics of ion Coulomb crystals
    Quantum information with ion crystals

    Selected publications:

    member photo
    Dr. Thomás Fogarty
    Postdoctoral Researcher

    .(JavaScript must be enabled to view this email address)
    Phone: (0) 681-302-6590
    Office: E2.6 - Room 4.28

    [Personal CV]    




    Research interests:

    Correlations in low dimensional systems
    Impurity quenches in 1D gases and ion chains
    Quantum information in continuous variables

    Selected publications:

    • Quenching small quantum gases: Genesis of the orthogonality catastrophe,
      S. Campbell, M. A. García-March, T. Fogarty, and Th. Busch
      Phys. Rev. A 90, 013617 (2014)
    • Quantum reservoirs with ion chains,
      B. G. Taketani, T. Fogarty, E. Kajari, Th. Busch, and Giovanna Morigi
      Phys. Rev. A 90, 012312 (2014)
    • Entangling two defects via a surrounding crystal,
      T. Fogarty, E. Kajari, B.G. Taketani, A. Wolf, Th. Busch and G. Morigi
      Phys. Rev. A 87, 050304(R) (2013)
    • Effect of inter-particle interaction in a free oscillation atomic interferometer,
      T. Fogarty, A. Kiely, S. Campbell and Th. Busch
      Phys. Rev. A 87, 043630 (2013)
    • Orthogonality catastrophe as a consequence of qubit embedding in an ultracold Fermi gasr,
      J. Goold, T. Fogarty, N. Lo Gullo, M. Paternostro and Th. Busch
      Phys. Rev. A 84, 063632 (2011)
    member photo
    Timo Holz
    Master student

    .(JavaScript must be enabled to view this email address)
    Phone: (0) 681-302-4785
    Office: E2.6 - Room 1.23b





    member photo
    Tristan Tentrup
    Research assistant

    .(JavaScript must be enabled to view this email address)
    Phone: (0) 681-302-3404
    Office: E2.6 - Room 1.22





    member photo
    Dr. Bruno Taketani
    Postdoctoral Researcher

    .(JavaScript must be enabled to view this email address)
    Phone: (0) 681-302-3404
    Office: E2.6 - Room 1.22

    [Personal CV]    




    Research interests:

    Open systems and decoherence theory.
    Foundations of quantum mechanics.
    Coherent control of quantum systems.

    Selected publications:

    • Optimal teleportation with a noisy source,
      B. G. Taketani, F. de Melo, and R. L. de Matos Filho
      Phys. Rev. A 85, 020301(R) (2012).
    • Entropic Entanglement Criteria for Continuous Variables,
      S. Walborn, B. G.Taketani, A. Salles, F. Toscano and R. L. de Matos Filho,
      Phys. Rev. Lett., 103, 160505 (2009).
    • Effects from inhomogeneities in the chiral transition,
      B. G. Taketani and E. Souza Fraga,
      Phys. Rev. D, 74, 085013 (2006).
    member photo
    Dr. Giovanni Manfredi
    Guest professor

    .(JavaScript must be enabled to view this email address)
    Phone: (0) 681-302-57476
    Office: E2.6 - Room 1.21

    Affiliation:

    in Strasbourg:

    Dr. Giovanni Manfredi
    Directeur de recherche CNRS
    Centre National de la Recherche Scientifique
    Institut de Physique et Chimie des Matériaux de Strasbourg
    23, rue du Loess - BP 43
    F-67034 Strasbourg
    France

    Personal Website:

    http://www-ipcms.u-strasbg.fr/spip.php?article289&lang=">http://www-ipcms.u-strasbg.fr/spip.php?article289&lang=

    Group Website:

    http://dyno.u-strasbg.fr/

    ">

    http://dyno.u-strasbg.fr/



    Research interests:

    Plasma physics, Magnetic confinement fusion, tokamaks.
    Ultrafast charge and spin dynamics in metallic and semiconductor nanostructures
    Quantum physics, Wigner functions, Quantum hydrodynamics, Relativistic quantum mechanics
    Physics of antimatter, gravitational behavior of antihydrogen


    Selected publications:

    member photo
    Hessam Habibian
    PhD student

    .(JavaScript must be enabled to view this email address)

    [Personal CV]    




    Research interests:

    Quantum Optics
    Quantum phase transitions
    Quantum tomography and entanglement

    Selected publications:

    • Quantum light by atomic arrays in optical resonators
      H. Habibian, S. Zippilli, and G. Morigi,
      Phys. Rev. A 84, 033829 (2011).
    • Aspects of Entanglement in Quantum Many-Body Systems
      J. W. Clark, H. Habibian, A. D. Mandilara and M. L. Ristig,
      Foundation of Physics 40, 1200-1220 (2010).
    • Greenberger-Horne-Zeilinger and W entanglement witnesses for the noninteracting Fermi gas
      H. Habibian, J. W. Clark, N. Behbood, K. Hingerl,
      Phys. Rev. A 81, 032302 (2010).
    member photo
    Dr. Gianluca Giorgi
    Postdoctoral Researcher

    .(JavaScript must be enabled to view this email address)
    Phone: (0) 681-302-3404
    Office: E2.6 - Room 1.22





    Selected publications:

    F. Galve, G. L. Giorgi, and R. Zambrini “Maximally discordant mixed states of two qubits”, Physical Review A 83, 012102 (2011)

    G. L. Giorgi, B. Bellomo, F. Galve, and R. Zambrini, “Genuine quantum and classical correlations in multipartite systems”, Physical Review Letters 107, 190501 (2011)

    G. L. Giorgi, Monogamy properties of quantum and classical correlations”, Physical Review A 84, 054301 (2011)

    G. L. Giorgi, F. Galve, G. Manzano, P. Colet, and R. Zambrini, “Quantum correlations and mutual synchronization”, Physical Review A 85, 052101 (2012)
    member photo
    Dr. Cecilia Cormick
    Postdoctoral Researcher
    Humboldt Research Fellow


    .(JavaScript must be enabled to view this email address)



    Group Website:

    http://www.famaf.unc.edu.ar/~ccormick/

    ">

    http://www.famaf.unc.edu.ar/~ccormick/




    member photo
    Christian Arenz
    Graduate student

    .(JavaScript must be enabled to view this email address)




    Research interests:

    Cavity Quantum Electrodynamics
    Quantum reservoir engineering
    Non-classical states of light

    member photo
    Dr. Alexander Wolf
    External member

    .(JavaScript must be enabled to view this email address)





    member photo
    Dr. Endre Kajari
    Postdoctoral researcher

    .(JavaScript must be enabled to view this email address)




    Research interests:

    Quantum reservoir engineering for controlled entanglement creation
    Dynamics of Bose-Einstein condensates in microgravity
    Interferometry in general relativity

    Selected publications:

    • Statistical mechanics of entanglement mediated by a thermal reservoir
      Endre Kajari, Alexander Wolf, Eric Lutz, Giovanna Morigi
      Phys. Rev. A 85, 042318 (2012).
      arXiv:1112.5300
    • Entangling two distant oscillators with a quantum reservoir
      Alexander Wolf, Gabriele De Chiara, Endre Kajari, Eric Lutz, Giovanna Morigi
      Europhys. Lett. 95, 60008 (2011).
      arXiv:1102.1838
    • Bose-Einstein Condensation in Microgravity,
      T. van Zoest et al.,
      Science 328, 1540 (2010).
    member photo
    Dr. Mauricio Torres
    Postdoctoral Researcher
    Fellow of CONACYT (Mexico)


    .(JavaScript must be enabled to view this email address)

    [Personal CV]    




    Research interests:

    Quantum optomechanics
    Cavity QED
    Quantum entanglement

    Selected publications:

    • Quantum jumps induced by the center-of-mass motion of a trapped atom,
      J. M. Torres, M. Bienert, S. Zippilli and G. Morigi,
      Eur. Phys. J. D 61, 21 (2011).
    • Dynamics of a Dirac oscillator coupled to an external field: a new class of solvable problems,
      E. Sadurní, J. M. Torres and T. H. Seligman,
      J. Phys. A 43, 285204 (2010).
    • Two interacting atoms in a cavity: exact solutions, entanglement and decoherence,
      J. M. Torres, E. Sadurní and T. H. Seligman,
      J. Phys. A 43, 192002 (2010).
    member photo
    Melanie Rolles
    Master student

    .(JavaScript must be enabled to view this email address)
    Phone: (0) 681-302-4785
    Office: E2.6 - Room 1.23b





    member photo
    Rick Dannert
    Teaching assistant

    .(JavaScript must be enabled to view this email address)
    Phone: (0) 681-302-4785
    Office: E2.6 - Room 1.23b





    member photo
    Pierre Wendenbaum
    in the Groupe de Physique Statistique

    .(JavaScript must be enabled to view this email address)
    Office: in Nancy





    member photo
    Dr. Sergey Grishkevich (Siarhei Hryshkevich)
    Postdoctoral Researcher

    .(JavaScript must be enabled to view this email address)




    Research interests:

    Quantum optics, lattice-light interactions
    Ultracold atomic and molecular gases
    Feshbach resonances, photoassociation

    Selected publications:

    • Mimicking multichannel scattering with single-channel approaches,
      S. Grishkevich, Ph. Schneider, Yulian V. Vanne and A. Saenz,
      Phys. Rev. A 81, 022719 (2010).
    • Ab initio determination of Bose-Hubbard parameters for two ultracold atoms in an optical lattice using a three-well potential,
      Ph. Schneider, S. Grishkevich and A. Saenz,
      Phys. Rev. A 80, 013404 (2009).
    • Theoretical description of two ultracold atoms in a single site of a three-dimensional optical lattice using realistic interatomic interaction potentials,
      S. Grishkevich, and A. Saenz,
      Phys. Rev. A 80, 013403 (2009).
    member photo
    Daniel Breyer
    Diploma student

    .(JavaScript must be enabled to view this email address)




    Research interests:

    Cavity Quantum Electrodynamics
    Coupling of atoms to micromechanical oscillators
    Light scattering in optomechanical systems

    member photo
    Dominic Scherer
    Diploma student

    .(JavaScript must be enabled to view this email address)




    Research interests:

    Cavity Optomechanics
    Interaction between atoms and optomechanical systems
    Quantum-to-classical transition


    member photo
    Dr. Cecilia C. López
    Postdoctoral researcher

    .(JavaScript must be enabled to view this email address)





    member photo
    Stefan Rist
    PhD student

    .(JavaScript must be enabled to view this email address)

    [Personal CV]    




    Research interests:

    Quantum Optics
    Light Matter Interactions
    Light propagation in Ultracold Atomic Gases

    Selected publications:

    • Light scattering by ultracold atoms in an optical lattice.,
      S.Rist, C. Menotti and G. Morigi,
      Phys. Rev. A 81, 013404 (2010).
    • Photonic spectrum of bichromatic optical lattices,
      S. Rist, P. Vignolo and G. Morigi,
      Phys. Rev. A 79,053822 (2009).
    • Photon-mediated interaction between two distant atoms,
      S.Rist, J.Eschner, M. Hennrich and G. Morigi,
      Phys. Rev. A 78, 013808 (2008).
    Stefano Zippilli
    Postdoctoral researcher

    .(JavaScript must be enabled to view this email address)