aspuru-list February 2011

aspuru-list@lists.fas.harvard.edu

24 participants
69 discussions

[Aspuru-Guzik group list] [theochem-announce] David Coker at MIT Tomorrow 4-149

by Lee-Ping

Dear All, Professor David Coker, from the Boston University Department of Chemistry, is presenting a theoretical chemistry seminar TOMORROW (Wednesday, February 9) from 4:00-6:00pm in Room 4-149. Please take note of the different room! The title of his talk will be "Modeling coherent excitation energy transfer in photosynthetic light harvesting systems." -- ABSTRACT -- Recent 2D photon-echo experimental evidence suggests that the excitation energy transfer in light harvesting systems occurs coherently rather than via an incoherent hopping mechanism proposed in many earlier models of the process. More surprisingly, Scholes and co-workers have found evidence for coherent transfer even at ambient temperature in photosynthetic marine algae [E. Collini et. al, Nature 2010, 463, 644-647]. In this talk we outline an iterative linearized density matrix (ILDM) propagation approach that can be converged to provide the exact evolution of the multi-state density. We demonstrate the approach in applications to various system-bath models that include tens of quantum states and hundreds of bath modes. We report a recent study of the coherent exciton transfer dynamics in phycocyanin PC645 from Chroomonas CCMP270 under ambient conditions (T=294K) with a multi-state system-bath dissipative model hamiltonian. The numerical results indicate that the oscillatory population beating lasts more than 400 fs and shows strong coherence between the DBV dimer and DBV-MBV bilin chromophores, an observation that agrees well with the experimental findings. Moreover, the quantum beating survives for nearly ten periods, and this long lived coherent superposition is likely to be responsible for providing a mechanism for the system to avoid excitation trapping and localization, providing sufficient time for the excitation to explore the entire complex and reach the acceptor, and thus has the potential to enhance the harvesting efficiency. Our calculations explore the influence of high and low frequency structures in the model environmental spectral density on the persistence of quantum coherence in these systems. We also explore the influence of various models of correlation between bath modes and the effects of such correlations on the coherence decay time. Thanks! Lee-Ping Wang Van Voorhis Group MIT Department of Chemistry _______________________________________________ theochem-announce mailing list theochem-announce(a)mit.edu http://mailman.mit.edu/mailman/listinfo/theochem-announce

13 years, 2 months

[Aspuru-Guzik group list] [qip] Tuesday meeting

by Edward Farhi

Dear Quanta We are set to meet on tomorrow (Tuesday) at 11:00. My calendar says that Bill is going to tell us about what he has been up to. Best, Eddie :::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::: Edward Farhi Cecil and Ida Green Professor of Physics Director Center for Theoretical Physics Massachusetts Institute of Technology 6-300 Cambridge MA 02139 617 253 4871 :::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::: _______________________________________________ qip mailing list qip(a)mit.edu http://mailman.mit.edu/mailman/listinfo/qip

13 years, 2 months

[Aspuru-Guzik group list] Announcement: Excitonics Seminar, Feb. 8, 3 pm, 36-428

by Cathy Bourgeois

please forward to your groups Center for Excitonics Seminar Series Announcement Tuesday, February 8, 2011 3:00 PM RLE Conference Room: 36-428 "Self-Assembled Colloidal Plasmonic Systems" Jonathan Fan, Harvard University Abstract The self-assembly of colloids is an alternative to top-down processing that enables the fabrication of nanostructures. I will show that self-assembled clusters of metal-dielectric spheres are the basis for nanophotonic structures. By tailoring the number and position of spheres in close-packed clusters, plasmon modes exhibiting strong magnetic and Fano-like resonances emerge. The use of identical spheres simplifies cluster assembly and facilitates the fabrication of highly symmetric structures. These types of chemically synthesized nanoparticle clusters can be generalized to other two- and three-dimensional structures and can serve as building blocks for new metamaterials. bio Jonathan Fan is currently a Postdoctoral Research Associate in the Capasso Group at Harvard University. He received his PhD in Applied Physics from the Capasso Group in 2010, where he was an NSF Graduate Fellow doing plasmonics research in colloidal systems and quantum cascade laser waveguide design. He received his BS with highest honor in Electrical Engineering from Princeton in 2004. He has authored and co-authored 18 papers. Light refreshments will be served The Center for Excitonics is an Energy Frontier Research Center funded by the U.S. Department of Energy, Office of Science and Office of Basic

13 years, 2 months

[Aspuru-Guzik group list] Announcement: Excitonics Seminar, Feb. 8, 3 pm, 36-428

by Cathy Bourgeois

13 years, 3 months

[Aspuru-Guzik group list] HUCE Weekly Calendar Email: February 3 - 17

by Center for the Environment

Highlights: Wednesday, February 9: Lester R. Brown, President, Earth Policy Institute, presents "World on the Edge" in the HUCE Green Conversations lecture series with discussants Noel Michele Holbrook (OEB), and Dan Schrag, (HUCE, EPS, SEAS). Friday, February 11: “How Climate in South Asia is Becoming a Water Issue” with Adil Najam, Director of the Frederick S. Pardee Center for the Study of the Longer-Range Future and Professor of International Relations and Geography & the Environment at Boston University. A South Asia Initiative Water Seminar, co-sponsored by the Harvard University Center for the Environment. Wednesday, February 16: Biodiversity, Ecology & Global Change lecture featuring Paul Moorcroft, Professor of Organismic and Evolutionary Biology, Harvard University. Calendar Listings: February 4, 2011 8:30-9:30am MSI Chalktalk Breakfast HUCE Seminar Room, 24 Oxford Street 3rd Floor, Room 310 “Repurposing lipoamide alters electron flow in two important metabolic pathways of E. coli” with Morgan Feeney, HMS Host: Jon Beckwith. Please join us for coffee/tea/pastries at 8:30 am. Directions to 24 Oxford Street: http://www.msi.harvard.edu/ov_dir.html 9:00am - 4:00pm Driver-facing Technologies to Improve Urban Mobility New Media Lab, 6th Floor, MIT, Cambridge, MA An MIT symposium on technology and research for smart roads and smart vehicles.A one-day symposium will be held on Friday, February 4, 2011, at the Massachusetts Institute of Technology to address issues related to urban traffic congestion. http://transportation.mit.edu/live/news/1355-driverfacing-technologies-to-i…... congestion(a)mit.edu February 5, 2011 2:00pm Great White Bear: A Natural & Unnatural History of the Polar Bear Geological Museum Lecture Hall, 24 Oxford St., Cambridge, MA Harvard Museum of Natural History Author talk and booksigning by Kieran Mulvaney. The diminishing arctic sea ice is an enormous threat to the survival of the polar bear. Through a blend of history, science, myth and personal observations, Kieran Mulvaney’s new book, Great White Bear (Houghton Mifflin), provides a new lens for readers to appreciate the polar bear, its unique biology, and its uncertain fate. Free with museum admission. http://www.hmnh.harvard.edu/lectures_and_special_events/index.php February 7, 2011 12:00pm - 1:30pm ETIP/Consortium Energy Policy Seminar Series Bell Hall, 5th Floor, Belfer Building HKS, 79 JFK St., Cambridge, MA “Towards a US Energy Policy," a talk featuring Daniel P. Schrag, Harvard University. http://www.hks.harvard.edu/m-rcbg/cepr/events.html#top 12:00pm OEB Special Seminar Main Lecture Hall, BioLabs Building, 16 Divinity Ave, Cambridge, MA Featuring Cassandra Extavour, Harvard University. http://www.oeb.harvard.edu/news_events/seminars.html 12:00pm Harvard Energy Journal Club HUCE Seminar Room, 24 Oxford Street, 3rd Floor Cambridge, MA Facilitating discussion and furthering our understanding of the technical details of energy technology and science. Visit the Energy Journal website for updates and topics of discussion. Contact Name: Dan Recht drecht(a)fas.harvard.edu 12:15pm STS Circle 124 Mt. Auburn St. Suite 100, Room 106 Cambridge, MA "Britain Invents the Infrastructure State." Jo Guldi, Harvard Society of Fellows. http://www.hks.harvard.edu/sts/events/ 4:00pm OEB Special Seminar Main Lecture Hall, BioLabs Building, 16 Divinity Ave, Cambridge, MA Elizabeth Hadly, Stanford University. http://www.oeb.harvard.edu/news_events/seminars.html 6:30pm - 8:30pm Restoring Hawaii’s Marvels of Evolution Hunnewell Building, Arnold Arboretum, 125 Arborway, Jamaica Plain, MA Robert Robichaux, University of Arizona Evolving in splendid isolation over millions of years, Hawaii’s native plants exhibit patterns of diversity that are unrivaled elsewhere on Earth. Especially striking are the many examples of adaptive radiation, in which original immigrants to the islands evolved into dazzling arrays of plants exhibiting great variation in form and habitat preference. Yet Hawaii’s native plants face an uncertain future. Many native plants, such as the exquisitely beautiful silverswords and lobeliads, now teeter on the edge of extinction. Join botanist Robert Robichaux of the University of Arizona and the Hawaiian Silversword Foundation as he discusses recent efforts to restore Hawaii’s marvels of plant evolution. Register online at https://my.arboretum.harvard.edu/ or call 617.384.5277 http://arboretum.harvard.edu/news-events/directors-lecture-series/ February 8, 2011 4:00pm, refreshments at 3:45pm MIT Colloquium: Choanoflagellates, bacteria and the origin of animal multcellularity MIT 32-123 Dr. Nicole King, Department of Molecular & Cell Biology, University of California at Berkeley Host: David Page February 9, 2011 11:00am OEB Weekly Seminar Series Main Lecture Hall, BioLabs Building, 16 Divinity Ave, Cambridge, MA "Resource depletion, pollen limitation, and synchronous mast-seeding in a perennial wildflower." Elizabeth Crone, Harvard Forest. Host: Losos Lab http://www.oeb.harvard.edu/news_events/seminars.html 2:00pm - 3:00pm "The Future of Energy Demand and Supply Possibilities: A Review of BP’s Energy Outlook 2030" Mugar 200, The Fletcher School, Tufts University, Medford, MA A Tufts Center for International Environment & Natural Resource Policy lecture with Paul Appleby, Head of Energy Economics, BP. Paul Appleby, who works in London, England with BP as the Head of Energy Economics, will discuss the Energy Outlook 2030 report and the key areas of focus such as energy intensity, growth of non-OECD countries, fuel substitution, biofuels and global environmental policy. Contact Name: Jacqueline M Deelstra Jacqueline.Deelstra(a)tufts.edu 3:00pm - 4:30pm "Plenitude: How and why millions of Americans are creating a time-rich, ecologically-light, small-scale, high-satisfaction economy" Cabot 702, The Fletcher School, 160 Packard Avenue, Tufts University, Medford, MA A Tufts Global Development and Environment Institute Lecture with Juliet Schor, Professor of Sociology at Boston College. Contact Name: Lauren Denizard lauren.denizard(a)tufts.edu 617-627-3530 http://ase.tufts.edu/gdae/ 4:00pm Green Conversations: "World on the Edge" with Lester R. Brown Science Center D, 1 Oxford Street, Cambridge, MA Lester R. Brown is the founder and president of the Earth Policy Institute and founder of the Worldwatch Institute. He is the recipient of numerous prizes, including a MacArthur Fellowship, the United Nations Environment Prize, Japan's Blue Planet Prize, and twenty-five honorary degrees. He is the author or co-author of 50 books, most recently, "World on the Edge: How to Prevent Environmental and Economic Collapse." Contact Name: Lisa Matthews matthew(a)fas.harvard.edu 617-495-8883 5:00-6:00pm MIT Energy Club Event: Liquid Metal Batteries: a new approach to large-scale energy storage for the grid MIT 4-231 Speaker: Dr. David Bradwell, MIT http://www.mitenergyclub.org/events-and-programs/lecture-series/liquid-meta… Contact Name: energyclub(a)mit.edu 6:00pm Neandertals and Modern Humans: The Genetic Evidence for Interbreeding Geological Museum Lecture Hall, 24 Oxford St Cambridge, MA Neandertals, our closest evolutionary relative, lived in parts of Europe and western Asia before disappearing 30,000 years ago. The great questions have always been, did they interbreed with our Homo sapiens ancestors and is there evidence of Neandertal genes in present-day humans? David Reich, Associate Professor of Genetics at Harvard, will address these issues with comparisons of the Neandertal genome to the genomes of present-day humans. http://www.hmnh.harvard.edu/lectures_and_special_events/index.php 8:00-9:00pm Environmental Action Committee Meeting Quincy House, Spindell Room, Harvard University, Cambridge, MA Everyone interested in learning about the EAC and/or learning how to help make a difference for the environment is welcome. Contact Name: Jackson Salovaara jsalov(a)fas.harvard.edu http://www.hcs.harvard.edu/~eac/ February 10, 2011 11:45am - 1:00pm Ecology Journal Club HUCE Meeting Room 318, 24 Oxford St. 3rd Floor, Cambridge, MA Reading and discussion group on diverse topics in ecology. Visit the website for topics of discussion. All interested researchers are welcome and lunch is provided. http://www.oeb.harvard.edu/faculty/pringle/journalclub.htm Contact Name: Primrose Boynton pboynton(a)fas.harvard.edu 5:30pm reception, 6:00pm seminar MSI Thursday Seminar HUCE, 24 Oxford St, 3rd Floor, Room 310 “Redox-active antibiotics control gene expression and community behavior in divergent bacteria” with Lars Dietrich (Columbia University) Host: Rich Losick February 11, 2011 12:30pm - 2:00pm How Climate in South Asia is Becoming a Water Issue CGIS Knafel Building, K262, 1737 Cambridge St., Cambridge, MA A South Asia Initiative Water Seminar, co-sponsored by the Harvard University Center for the Environment Speaker: Adil Najam, Director of the Frederick S. Pardee Center for the Study of the Longer-Range Future; Professor of International Relations and Geography & the Environment at Boston University Contact Name: Megan Rajbanshi mrajbans(a)fas.harvard.edu (617) 496-4862 9:00-11:00am MIT Energy Club Event: Tour of the EnerNOC Facility Boston, MA EnerNOC is a world class energy management service company that assists commercial, institutional and industrial organizations use energy more intelligently and cost effectively while generating cash flow that benefits the bottom line. To sign up, use the following link: https://spreadsheets.google.com/viewform?hl=en&formkey=dGVaQnltVGJCclFNWXB4… Contact Name: Daniel Apo djapo(a)mit.edu February 12, 2011 All day Gallery Opening: Twelve Animals of the Chinese Zodiac HMNH 26 Oxford St Cambridge, MA -Through February 28- Experience the museum as we launch the Year of the Rabbit by discovering the 12 animals of the Chinese zodiac, each linked to a specimen in the galleries. Learn about the cultural significance and natural history of these animals and try your hand at drawing the animal assigned to the year of your birth. Free with museum admission. http://www.hmnh.harvard.edu/lectures_and_special_events/index.php February 14, 2011 12:00pm Harvard Energy Journal Club HUCE Seminar Room, 24 Oxford Street, 3rd Floor Cambridge, MA Facilitating discussion and furthering our understanding of the technical details of energy technology and science. Visit the Energy Journal website for updates and topics of discussion. Contact Name: Dan Recht drecht(a)fas.harvard.edu February 16, 2011 4:00-5:00pm Origins Forum Geo Museum, Haller Hall (Room 102), 24 Oxford Street Title: TBA Speaker: John Mustard (Brown University) 5:00pm Biodiversity, Ecology & Global Change: Paul Moorcroft Biolabs Lecture Hall, 16 Divinity Ave, Cambridge Paul Moorcroft, Professor of Organismic and Evolutionary Biology, Harvard University, investigates the ecological dynamics of terrestrial plant communities and ecosystems, biosphere-atmosphere interactions, and mechanistic models of animal movement. Contact Name: Lisa Matthews lisa_matthews(a)harvard.edu 617-495-8883 8:00-9:00pm Environmental Action Committee Meeting Quincy House Spindell Room Harvard University Cambridge, MA Everyone interested in learning about the EAC and/or learning how to help make a difference for the environment is welcome. Contact Name: Jackson Salovaara jsalov(a)fas.harvard.edu http://www.hcs.harvard.edu/~eac/ February 17, 2011 11:45am - 1:00pm Ecology Journal Club HUCE Meeting Room, 318 24 Oxford St. 3rd Floor Cambridge, MA Reading and discussion group on diverse topics in ecology. Visit the website for topics of discussion. All interested researchers are welcome and lunch is provided. Contact Name: Primrose Boynton pboynton(a)fas.harvard.edu http://www.oeb.harvard.edu/faculty/pringle/journalclub.htm You are receiving this email because you indicated interest in Harvard University Center for the Environment events. [68]Unsubscribe aspuru-list(a)lists.fas.harvard.edu from this list. Links: 68. http://harvard.us1.list-manage.com/unsubscribe?u=7532d1fbf18f39219ac742ebe&… Our mailing address is: 24 Oxford St. Cambridge, MA 02138 (T) 617-495-0368 www.environment.harvard.edu Copyright (C) 2008 Harvard University. All rights reserved.

13 years, 3 months

[Aspuru-Guzik group list] Meet the man: Chris Jarzyinsky.

by Alan Aspuru-Guzik

Hi all, I will be talking with Chris Jarzinsky from 2.00-2.30. If anybody wants to meet him, we could meet in the area outside my office at 2.30 and take him at 3.00 to David Nelson's office. If interested, let Anna know to have a head-count. See you here! Alan Alán Aspuru-Guzik | Associate 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 | http://about.me/aspuru

13 years, 3 months

[Aspuru-Guzik group list] Fwd: Opportunities for undergraduate students and postdoctoral researches at Denver ACS meeting

by Alan Aspuru-Guzik

See below for postdoctoral awards at ACS. If interested, let me know. Alán Aspuru-Guzik | Associate 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 | http://about.me/aspuru ---------- Forwarded message ---------- From: ACS Physical Chemistry Division <acspchem(a)chemistry.ohio-state.edu> Date: Thu, Feb 3, 2011 at 1:07 PM Subject: Opportunities for undergraduate students and postdoctoral researches at Denver ACS meeting To: acspchem-list(a)chemistry.ohio-state.edu Dear PHYS member, I am pleased to announce the deadlines for two programs at the Denver ACS meeting for undergraduate students and Postdoctoral researchers. Also if you are a student, or have a student who is working with you, who will be presenting a poster at the PHYS poster session at a national ACS meeting, please be sure to obtain a red star so your poster will be considered as part of the poster competition. PHYS WORKSHOP FOR UNDERGRADUATE STUDENTS: George Shields will be organizing the fourth annual PHYS Workshop for undergraduate students as part of the national fall ACS meeting in Denver. Details about the program and registration procedure are available at http://phys-acs.org <http://www.phys-acs.org>. This is an excellent opportunity for current juniors (who will be seniors in the fall) who are doing research to be exposed to current physical chemistry topics at a national ACS meeting. Please encourage your students to apply. Applications will start being processed on a rolling basis Friday, February 11, but will be considered through March 3, 2011 POSTDOCTORAL RESEARCH AWARDS: The PHYS Division plans to highlight leading research by postdoctoral fellows at the Fall National ACS meeting in Denver through a series of special awards. Awardees will give oral presentations in a PHYS symposium and attend the PHYS executive dinner. Each postdoctoral nominee should also submit the usual contributed abstract to the PHYS program using the online submission system (abstracts.acs.org), so he/she can present at the meeting even if not selected for the special symposium. The deadline for applications is March 10, 2011, and selections will be announced shortly after the Spring ACS meeting in March 2011. More details on the award and applications procedure may be found at http://phys-acs.org. -- Anne B. McCoy Secretary/Treasurer, Physical Chemistry Division ACS _______________________________________________ acspchem-list mailing list acspchem-list(a)chemistry.ohio-state.edu https://mail.chemistry.ohio-state.edu/mailman/listinfo/acspchem-list

13 years, 3 months

[Aspuru-Guzik group list] David Coker's visit next Tuesday

by Joel Yuen

Hi all, As part of the Greater Boston Theochem series, David Coker (Boston University and University College Dublin) http://www.bu.edu/chemistry/faculty/coker/ <http://www.bu.edu/chemistry/faculty/coker/> http://www.ucd.ie/physics/staff/academics/davidcoker/ is giving a talk next Wednesday 2/9/2011 at 4 PM at MIT, 56-154. However, he's also visiting Harvard next *Tuesday 2/8/2011* afternoon. His work is of interest for our group, as he is also into FMO recently! (See abstract of his talk at http://people.bu.edu/theochem/schedule.html) We have plenty of time for meeting with students after 4 pm. There are also spaces for dinner with him on the same day (Tuesday). Please let me know if you're interested in talking with him or attending dinner. Thanks, -- Joel Yuen-Zhou PhD candidate in Chemical Physics Harvard University CCB, 12 Oxford St. Mailbox 107, Cambridge, MA, USA.

13 years, 3 months

[Aspuru-Guzik group list] Announcement: Excitonics Seminar, Feb. 8, 3 pm, 36-428

by Cathy Bourgeois

13 years, 3 months

[Aspuru-Guzik group list] Beer at 6pm, TODAY in Queen's Head pub

by Semion Saikin

Hi Guys, Cesar and I where thinking to together today after the 5-6pm seminar (actually we can skip the seminar also) to have one or two beers in the Queen's Head pub. There are at least two reasons for that -- the Groundhog day, which was yesterday, and the Chinese New Year today. This is besides that the good beer is already a reason. Welcome to join! If you think that the above motivation is not strong enough for you, send us an email and we try to find more reasons! Semion

13 years, 3 months

2024

2023

2022

2021

2020

2019

2018

2017

2016

2015

2014

2013

2012

2011

2010

2009

2008

2007

2006

aspuru-list February 2011