Hartmann Group

Quantum Optics and Quantum Dynamics



Welcome to the
Quantum Optics and Quantum Dynamics Group






We are a physics theory research group sponsored by
the Emmy Noether programme of the Deutsche Forschungsgemeinschaft



News:


07.02.2012: "Generation of mesoscopic entangled states in a cavity coupled to an atomic ensemble" , by G. Nikoghosyan, M.J. Hartmann and M.B. Plenio to be published in Phys. Rev. Lett.



27.01.2012: "Steady-state negative Wigner functions of nonlinear nanomechanical oscillators" , by S. Rips, M. Kiffner, I. Wilson-Rae and M.J. Hartmann to be published in New J. Phys.



27.01.2012: "Signatures of single-site addressability in resonance fluorescence spectra" , by P. Degenfeld-Schonburg, E. del Valle and M.J. Hartmann gets published in Phys. Rev. A 85, 013842 (2012)



20.12.2011: "Quantum complementarity of cavity photons coupled to a three-level system" , by R. Vilardi, A. Ridolfo, S. Portolan, S. Savasta, and O. Di Stefano gets published in Phys. Rev. A 84, 063842 (2011)



22.11.2011: "Test of the all-optical control of wave – particle duality of cavity photons by ordinary photodetection" , by O. Di Stefano, A. Ridolfo, S. Portolan and S. Savasta gets published in Opt. Lett. 36, 4509 (2011)



11.11.2011: "Generation of a two-photon state from a quantum dot in a microcavity" , by E. del Valle, A. Gonzalez-Tudela, E. Cancellieri, F.P. Laussy and C. Tejedor gets published in New J. Phys. 13, 113014 (2011)



09.11.2011: "Luminescence spectra of quantum dots in microcavities. III. Multiple quantum dots" , by F.P. Laussy, A. Laucht, E. del Valle, J.J. Finley and J.M. Villas-Bôas gets published in Phys. Rev. B 84, 195313 (2011)



04.11.2011: "Arrays of waveguide-coupled optical cavities that interact strongly with atoms" , by G. Lepert, M. Trupke, M.J. Hartmann, M.B. Plenio and E.A. Hinds gets published in New J. Phys. 13, 113002 (2011)



11.10.2011: "Regimes of strong light-matter coupling under incoherent excitation" , by Elena del Valle and Fabrice P. Laussy gets published in Phys. Rev. A 84, 043816 (2011)



13.07.2011: Peter Degenfeld Schonburg is awarded the "Goldene Kreide" ("golden chalk") for best tutor of the academic year 2010/2011.



10.06.2011: "Dissipation-induced correlations in 1D bosonic systems" , by Martin Kiffner and Michael J. Hartmann, New J. Phys. 13, 053027 (2011), is currently the most read article in New Journal of Physics



30.05.2011: Michael J. Hartmann receives a grant by the Bavaria California Technology Center BaCaTeC to start up a collaboration with Prof. Andrew Cleland and Prof. John Martinis at the University of California in Santa Barbara.








24.05.2011: The 3rd funding period of the Collaborative Research Center 631: Solid State Quantum Information Processing in which Michael J. Hartmann participates as a principal investigator is granted.








16.05.2011: "Dissipation-induced correlations in 1D bosonic systems" , by Martin Kiffner and Michael J. Hartmann gets published in New J. Phys. 13, 053027 (2011)



03.04.2011: "Single spontaneous photon as a coherent beamsplitter for an atomic matter-wave" , by Jiří Tomkovič, Michael Schreiber, Joachim Welte, Martin Kiffner, Jörg Schmiedmayer & Markus K. Oberthaler gets published in Nature Physics

see TUM press release



15.03.2011: Dr Elena del Valle is awarded an Humboldt Research Fellowship for Postdoctoral Researchers for joining the group.








22.09.2010: "Bose-Hubbard dynamics of polaritons in a chain of circuit quantum electrodynamic cavities" , by Martin Leib and Michael J. Hartmann gets published in New J. Phys. 12, 093031 (2010)



14.09.2010: "A master equation approach for interacting slow- and stationary-light polaritons" , by Martin Kiffner and Michael J. Hartmann gets published in Phys. Rev. A 82, 033813 (2010)



01.04.2010: Our overview article in German, "Gefrorenes Licht" , by Michael J. Hartmann and Martin B. Plenio gets published in Physik Journal 4, 41 (2010)



18.03.2010: "Polariton crystallization in driven arrays of lossy nonlinear resonators" by M.J. Hartmann gets published in Phys. Rev. Lett. 104, 113601 (2010)



01.03.2010: "Exact matrix product solutions in the Heisenberg picture of an open quantum spin chain" by S.R. Clark, J. Prior, M.J. Hartmann, D. Jaksch and M.B. Plenio gets published in New J. Phys. 12, 025005 (2010)



26.02.2010: "Dissipation-induced Tonks-Girardeau gas of polaritons" by M. Kiffner and M.J. Hartmann gets published in Phys. Rev. A 81, 021806(R) (2010)



02.02.2009: "Density Matrix Renormalization Group in the Heisenberg Picture" by M.J. Hartmann, J. Prior, S.R. Clark and M.B. Plenio gets published in Phys. Rev. Lett. 102, 057202 (2009)



04.12.2008: Our publication "Steady state entanglement in the mechanical vibrations of two dielectric membranes" by M.J. Hartmann and M.B. Plenio ( Phys.Rev. Lett. 101 200503 (2008)) is covered in the news stories:

"Schrödinger’s Drum" by Michelangelo D'Agostino Phys. Rev. Focus 22, story 16

"Visible and Entangled" by Armand Niederberger Optics & Photonics Focus 3, story 7



13.11.2008: "Steady state entanglement in the mechanical vibrations of two dielectric membranes" by M.J. Hartmann and M.B. Plenio gets published in Phys.Rev. Lett. 101 200503 (2008)