Quantum Information Science Colloquia

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Current and Upcoming IQIS Colloquia

1. Friday 19th February, 2010 3:00-4:00pm in SB 146

   Howard Carmichael [University of Auckland]

   Co-sponsored by: Department of Physics and Astronomy
   

   Title: Cavity QED: Nonlinearity and the World of Quanta (joint colloquium with the Department of Physics and Astronomy)
   Abstract: The invention of the laser in the early 1960s introduced physics to the world of optical nonlinearity. Indeed, laser action itself exemplifies that nonlinearity, with its sustained oscillation above threshold emerging in the manner of a second-order phase transition. Though numbers vary, something like 104 to 108 photons are needed to “turn on” the nonlinearity of a typical laser. Imagine then that one photon would do it! This exercise defines cavity quantum electrodynamics (cavity QED), where one visible photon, confined in a small enough cavity, might produce an electric field of 10, 100, or even 1000 V/cm. My talk reviews 20 years of progress in cavity QED, focusing on a comparison of linear response, which is largely classical, and those nonlinear (multi-photon) effects that tell an unequivocal story of the quantized nature of light. The history tracks past recent dramatic experiments that relate the story with microwave photons and a superconducting qubit, to the prediction of a novel quantum phase transition for photons, where quantum trajectories tell the story…one of a distinctly quantum “nonlinear dynamics”.

2009

1. Quantum limits and entanglement in metrology and magnetometry
   Eugene Polzik [Niels Bohr Institute, Copenhagen University]
   8 December 2009  - abstract -




2. Quantum computer - dream and realization
   Rainer Blatt [Institut für Experimentalphysik, Universität Innsbruck]
   2 November 2009  - abstract -




3. Does Zeno Freeze the Evolution? On Quantum Heating, Cooling and Freezing.
   Gershon Kurizki [The Weizmann Institute of Science , Rehovot 76100 , Israel]
   29 July 2009  - abstract -




4. Towards a QED for dispersive and absorptive media
   John Sipe [University of Toronto]
   5 May 2009  - abstract -




5. Hiking over quantum control landscapes (MITACS QIP Seminar Series)
   Herschel Rabitz [Princeton University]
   Co-sponsored by: Institute for Biocomplexity & Information
   7 April 2009  - abstract -




6. Quantum information and its application to cryptography (MITACS QIP Seminar Series)
   Michele Mosca [Institute for Quantum Computing]
   3 April 2009  - abstract -




7. Quantum-Opto-Mechanics: quantum foundations and quantum information on the nano- and microscale
   Markus Aspelmeyer [Institute for Quantum Optics and Quantum Information (IQOQI) of Austrian Academy of Sciences]
   Co-sponsored by: Department of Physics and Astronomy
   10 March 2009  - abstract -




2008

8. Using quantum mechanics to detect anthrax (joint colloquium with the Department of Physics and Astronomy)
   Marlan Scully [Texas A&M University and Princeton University]
   Co-sponsored by: MITACS QIP Seminar Series
   12 December 2008  - abstract -




9. Entanglement in quantum many-body systems far away from equilibrium: Are there non-trivial quantum effects in biology?
   Hans Briegel [Theoretical Physics, University of Innsbruck; Institute for Quantum Optics and Quantum Information (IQOQI) of the Austrian Academy of Sciences]
   Co-sponsored by: MITACS QIP Seminar Series
   11 December 2008  - abstract -




10. Recollections of Oppenheimer and Schwinger (joint colloquium with the Department of Physics and Astronomy)
    Edward Gerjuoy [Department of Physics & Astronomy, University of Pittsburgh]
    Co-sponsored by: Institute for Quantum Information Science
    31 October 2008  - abstract -




11. Controlled Coupling and Occupation of Silicon Atomic Quantum Dots at Room Temperature
    Robert Wolkow [Department of Physics, University of Alberta & National Institute for Nanotechnology]
    Co-sponsored by: MITACS QIP Seminar Series
    21 October 2008  - abstract -




12. Dimensional Scaling for Atoms and Molecules (PHAS colloquium)
    Goong Chen [Texas A&M University]
    16 May 2008  - abstract -




2007

13. A personal perspective on quantum cryptography (Faculty of Science Distinguished Lecture)
    Gilles Brassard [Université de Montréal]
    Co-sponsored by: MITACS QIP Seminar Series
    28 September 2007  - abstract -




14. Protecting an optical qubit against photon loss
    Konrad Banaszek [Nicolaus Copernicus University]
    Co-sponsored by: MITACS QIP Seminar Series
    20 June 2007  - abstract -




15. Quantum Interconnecting Atoms and Photons (Co-sponsored by MITACS)
    Joerg Schmiedmayer [Atominstitut der österreichischen Universitäten]
    Co-sponsored by: MITACS QIP Seminar Series
    4 June 2007  - abstract -




16. Quantum observations: reconstruction of quantum states and processes (Co-sponsored by MITACS)
    Vladimír Bužek [Research Center for Quantum Information, Institute of Physics, Slovak Academy of Sciences]
    Co-sponsored by: MITACS QIP Seminar Series
    31 May 2007  - abstract -




17. Entanglement in Quantum Information (MAST Colloquium)
    Gilad Gour [University of Calgary]
    22 March 2007  - abstract -




18. Large-Scale Quantum Phenomena, & the Decoherence Enigma (PHAS Colloquium)
    Philip Stamp [Pacific Institute for Theoretical Physics, Physics and Astronomy, University of British Columbia]
    16 March 2007  - abstract -




2006

19. Cat States and Bose Condensates in Double Well Potentials
    Birgitta Whaley [University of California, Berkeley]
    18 October 2006  - abstract -




20. Linear Optical Quantum Computing, Imaging, and Metrology -- What's New with N00N States?
    Jonathan Dowling [Hearne Institute for Theoretical Physics, Louisiana State University in Baton Rouge]
    4 October 2006  - abstract -




21. Einstein, the EPR argument, and Steering: New Perspectives from Quantum Information
    Howard Wiseman [Centre for Quantum Computer Technology, Centre for Quantum Dynamics, School of Science, Griffith University]
    17 August 2006  - abstract -




22. Fault-tolerant architecture for very noisy gates
    Emanuel Knill [NIST]
    7 June 2006  - abstract -




23. Towards optical quantum computation with realistic devices
    Terry Rudolph [Imperial College, London]
    19 April 2006  - abstract -




24. Observing and manipulating quantum information: some experiments with photons and atoms.
    Aephraim Steinberg [CQIQC, University of Toronto]
    23 February 2006  - abstract -




2005

25. Towards Long-Distance Quantum Communication.
    Wolfgang Tittel [ Group of Applied Physics (GAP)-Optique, Université de Genèe, Switzerland]
    13 July 2005  - abstract -




26. Practical Quantum Cryptography
    Alexei Trifonov [Chief Scientist and Vice-President Research and Development MagiQ Technologies Inc., Boston, USA]
    6 July 2005  - abstract -




27. Optical quantum computing: science-fiction, horror-story or news?
    Andrew White [Program Manager, Centre for Quantum Computer Technology and Faculty Member, Centre for Biophotonics and Laser Science, The University of Queensland, Australia]
    17 June 2005  - abstract -




28. Quantum Key Distribution
    Norbert Lütkenhaus [Institut für Theoretische Physik, Universität Erlange-Nürnberg, Erlangen, Germany]
    10 June 2005  - abstract -




29. Quantum Communication and Quantum Computation with Entangled Photons
    Anton Zeilinger [Institute for Experimental Physics, University of Vienna and Institute of Quantum Optics and Quantum Information, Austrian Academy of Sciences]
    4 March 2005  - abstract -