aspuru-list September 2009

aspuru-list@lists.fas.harvard.edu

28 participants
90 discussions

[Aspuru-Guzik group list] ANNOUNCEMENT: Excitonics Seminar - Professor Ian Mercer - September 29

by rtavilla＠rle.mit.edu

Center for Excitonics Seminar Series Announcement The Center for Excitonics (http://www.rle.mit.edu/excitonics) invites you to join us at the first seminar of the Fall 2009 series. Please forward this information on to others who might be interested in attending this seminar. Title: Quantum Dimension of Photosynthesis Revealed by Angular Resolved Coherent Imaging Presenter: Professor Ian Mercer Organization: Department of Physics, University College Dublin Date: September 29, 2009 Time: 3:00 - 4:00pm Place: 36-428 Refreshments: Yes URL: http://www.rle.mit.edu/excitonics/mercer-092909.html abstract Understanding the role of coherent electronic motion is expected to resolve general questions of importance in macromolecular energy transfer, in nature and in devices. Significant progress has been made using coherent optical four wave-mixing, however the interpretation of measurements is difficult in particular where multiple quantum transitions are strongly coupled, and new methods are required for an improved feedback to molecular simulation. We will look at a novel laser method, Angle-Resolved Coherent (ARC) imaging, that separates quantum coherences from energy transfers in to orthogonal dimensions, in an instantaneous two-dimensional mapping. The power of the new method is demonstrated with the light harvesting complex II (LH2) of purple bacteria. We reveal an evolving quantum coherence with a time-ordered matter-selection of transition energies at ambient temperature. We also reveal a coherent component to the energy transfer between macromolecular rings and a correlation between excitation and emission energies within a ring at ambient temperature. bio Ian Mercer is currently lecturing in Physics at University College Dublin in Ireland. He has previous experience as a laser company CTO (UK), a lecturer in Chemistry at Imperial College (UK) and a PI and Team Leader at LLNL (US). His has interests in combining new laser methods, laser technology and molecular-optical simulation for revealing biomolecular and electronic device function. energies within a ring at ambient temperature.

14 years, 7 months

[Aspuru-Guzik group list] DESK RAFFLE.

by Alan Aspuru-Guzik

Dear group members, A couple of you went there and scouted and got desks without my permission. *There will be a* *desk raffle*. Nobody has an assigned desk yet. So if you started to move boxes (Before my approval and that of Connors!, but anyways) you will probably have to move them again internally once I raffle the desks. Alan Alán Aspuru-Guzik | Assistant Professor Harvard University | Department of Chemistry and Chemical Biology 12 Oxford Street, Room M113 | Cambridge, MA 02138 (617)-384-8188 | http://aspuru.chem.harvard.edu

14 years, 7 months

[Aspuru-Guzik group list] Move.

by Alan Aspuru-Guzik

Dear group, I tried to find out what is going on with the move. I just found from a construction person that they are checking the Internet connectivity. As soon as we get a green, Anna or I will send an e-mail regarding the move. Stay put! Alan Alán Aspuru-Guzik | Assistant Professor Harvard University | Department of Chemistry and Chemical Biology 12 Oxford Street, Room M113 | Cambridge, MA 02138 (617)-384-8188 | http://aspuru.chem.harvard.edu

14 years, 7 months

[Aspuru-Guzik group list] Spin-based quantum computers made by chemistry: hows and whys

by J D Whitfield

*J. Mater. Chem.*, 2009, *19*, 1718 - 1730, *DOI:* 10.1039/b811778k<http://sfx.hul.harvard.edu/sfx_local?__char_set=utf8&id=doi:10.1039/b811778…> Enjoy! JDW J. D. Whitfield Aspuru-Guzik Group Department of Chemistry and Chemical Biology Harvard University tel: 301-520-7847 web: aspuru.chem.harvard.edu/people/James_Whitfield

14 years, 7 months

[Aspuru-Guzik group list] Comment on 'Quantum resolution to the arrow of time dilemma'

by J D Whitfield

Hi everyone, In case you liked: Lorenzo Maccone. Physical Review Letters, Vol. 103, No. 8. (2009), 080401 check out comments by Terry Rudolph and David Jennings: http://arxiv.org/abs/0909.1726 JDW J. D. Whitfield Aspuru-Guzik Group Department of Chemistry and Chemical Biology Harvard University tel: 301-520-7847 web: aspuru.chem.harvard.edu/people/James_Whitfield

14 years, 7 months

[Aspuru-Guzik group list] The Coffee Experiment

by Ivan Kassal

We are now on Sample D. Ivan PS. I have discovered another bag of coffee, which will be designated Sample E. Note that Sample E will be identical to one of the previous samples. If the averages of the scores for the identical samples are not equal up to some statistical criterion (is it the p test that one is supposed to use? the t test? I never learned that properly) I will conclude that the guinea pigs don't know what they're talking about and I will order the coffee that I prefer.

14 years, 7 months

[Aspuru-Guzik group list] [iic-colloquium] IIC Colloquium Sept. 16: High-Throughput Science

by Rosalind Reid

You are cordially invited to next Wednesday's IIC Colloquium: High-Throughput Science September 16, 2009, 4:00pm 60 Oxford Street, Cambridge, Room 330 (**NOTE LOCATION CHANGE**) Hanspeter Pfister Gordon McKay Professor of the Practice of Computer Science Harvard School of Engineering and Applied Sciences Abstract How did the universe start? How is the brain wired? How does matter interact at the quantum level? These are some of the great scientific challenges of our times, and answering them requires bigger scientific instruments, increasingly precise imaging equipment, and ever more complex computer simulations. The traditional model is to process the data on a remote supercomputer. However, low data transmission rates, high energy consumption, and the high price of large parallel machines are obstacles for many scientists. In this talk I will suggest that commodity high-throughput computing is enabling high-throughput science, where we process massive data streams efficiently and analyze them rapidly, all the way from the instrument to the desktop. I will present an overview of several projects at Harvard that leverage GPUs for high-throughput science, ranging from radio astronomy and neuroscience to quantum chemistry and physics. About the speaker Hanspeter Pfister received his Ph.D. in computer science in 1996 from the State University of New York at Stony Brook and his M.S. in electrical engineering from ETH Zurich, Switzerland, in 1991. Before joining the Harvard faculty, he worked for 11 years at Mitsubishi Electric Research Laboratories. His research lies at the intersection of visualization, computer graphics, and computer vision and spans a range of topics including scientific visualization, point-based graphics, appearance modeling, face recognition, and computational photography. He is the chief architect of VolumePro, Mitsubishi Electric’s real-time volume-rendering hardware for PCs. Pfister has taught courses at major graphics conferences including ACM SIGGRAPH, IEEE Visualization, and Eurographics. Chair of the IEEE Visualization and Graphics Technical Committee (VGTC) and editor of the 2006 NIH/NSF Visualization Research Challenges report, he is a senior member of the IEEE Computer Society and member of ACM, ACM SIGGRAPH, and the Eurographics Association. During the IIC's life as an Interfaculty Initiative, Pfister served as Director of Visual Computing. --------------- For more information about IIC colloquia and other events : http://iic.harvard.edu/events/upcoming -------------- Initiative in Innovative Computing Harvard School of Engineering and Applied Sciences _______________________________________________ _______________________________________________ iic-colloquium mailing list iic-colloquium(a)seas.harvard.edu https://lists.deas.harvard.edu/mailman/listinfo/iic-colloquium

14 years, 7 months

[Aspuru-Guzik group list] Coffee Experiment

by Ivan Kassal

.... continues with sample C. Note that there isn't much of sample C, so the interested parties are encouraged to race for it.

14 years, 7 months

[Aspuru-Guzik group list] Center for Excitonics. Reminder.

by Alan Aspuru-Guzik

Dear group, Anybody that wishes to associate themselves with the center, can e-mail Rita Tavilla ("Rita Tavilla" <rtavilla(a)rle.mit.edu>, ). This adds you to their mailing list. Also, if you are paid by the center (JAMES, PATRICK, ALEJANDRO) definitely you should be on the list and go to the event below. People that do not belong but are "associated" if they wish (Leslie is going) are encouraged to show up. That way you can meet the students and postdocs of the other people in the center (e.g. Keith Nelson's Baldo's, Bawendi's, etc.) Cesar, Jacob, Joel and others:, are you interested? Alan For those of you interested in knowing what the center of excitonics, see here: http://www.rle.mit.edu/excitonics/ Good Morning, The Center for Excitonics has scheduled an All Hands meeting to take place on October 1st. The Center's students and postdocs are expected to attend. The meeting will be happening at the Endicott House in Dedham. This will be a great opportunity to meet each other and hear some information about the science and management of the center. We have also invited noted MIT public speaking expert Prof. Patrick Winston to present "How to Talk" at the meeting. Presentations from some of the students will also be scheduled. The meeting will start at 3:00pm and include a BBQ and run until 7:00 - 8:00pm. Transportation to and from Endicott will be provided if you should need it and will leave the MIT campus at 2:30pm. You can contact Rita Tavilla with any questions you might have. Please RSVP and indicate your need for transportation at http://www.doodle.com/knyyunrux7mfzbea. Thank you, Marc Baldo & Rita Tavilla Alán Aspuru-Guzik | Assistant Professor Harvard University | Department of Chemistry and Chemical Biology 12 Oxford Street, Room M113 | Cambridge, MA 02138 (617)-384-8188 | http://aspuru.chem.harvard.edu

14 years, 7 months

[Aspuru-Guzik group list] Vibration enhanced quantum transport

by Patrick Rebentrost

Hi, relevant paper, but don't believe what they say about the relation between Refs. [2] and [3] ;) Best, Patrick http://arxiv.org/abs/0909.1846 Vibration enhanced quantum transport Authors: F. L. Semião, K. Furuya, G. J. Milburn

14 years, 7 months

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aspuru-list September 2009