aspuru-list April 2012

aspuru-list@lists.fas.harvard.edu

27 participants
60 discussions

[Aspuru-Guzik group list] Fwd: Gordon/Zhuang friday seminar 4/6

by Anna B. Shin

FYI Group: CCB Grad/Pdoc Seminar tomorrow. Anna B. Shin Laboratory Administrator | Aspuru-Guzik Research Group Department of Chemistry and Chemical Biology | Harvard University 12 Oxford Street | Cambridge, MA 02138 617.496.9964 office | 617.694.9879 cell | 617.496.9411 fax http://aspuru.chem.harvard.edu/ <https://mail.google.com/mail/u/0/?ui=2&ik=e7480c62f0&view=att&th=12eee19970…> ---------- Forwarded message ---------- From: Amy Sutton <asutton(a)fas.harvard.edu> Date: Thu, Apr 5, 2012 at 4:26 PM Subject: Gordon/Zhuang friday seminar 4/6 To: morrison(a)chemistry.harvard.edu, aizenberg-group(a)seas.harvard.edu, creson(a)chemistry.harvard.edu, purvang(a)cmliris.harvard.edu, mlegrand(a)gmwgroup.harvard.edu, anna(a)chemistry.harvard.edu, stanhope(a)huarp.harvard.edu, schaal(a)chemistry.harvard.edu, kilroy(a)chemistry.harvard.edu, howard(a)chemistry.harvard.edu, kathleen(a)cmliris.harvard.edu Hi, could you please forward this to your groups? The Friday seminar this week will also be on physical chemistry topics. Jing Yang, “Chemical Vapor Deposition of Cobalt Nitride thin film and its applications” Wenqin Wang, “Chromosome organization in live bacteria revealed by super-resolution fluorescence microscopy” 12:30 Friday 04/06 in the Pfizer lecture hall Pizza will be served afterward! Thanks! Amy.

12 years, 1 month

[Aspuru-Guzik group list] Prof. Atac Imamoglu, Guest Speaker, ITAMP/HQOC Joint Atomic Physics & Quantum Optics Colloquium

by Joan Hamilton

-- Joan Hamilton Assistant to Profs. Lukin and Greiner Department of Physics 17 Oxford Street Lyman Building - Room 324A Cambridge, Ma 02138 Phone 617-496-2544 HUCTW Local Representative for the Department of Physics

12 years, 1 month

[Aspuru-Guzik group list] [Aspuru-meetings-list] Group meeting by Dmitrij tomorrow

by Joel Yuen

When: Friday April 6 from 2 to 3 PM Where: Cabot Division Room at Mallinckrodt What: Dmitrij is up for group meeting "ab initio Parametrized Exciton Dynamics". Here is a short summary: I will describe a simple approach for describing exciton dynamics in multichromophoric complexes. It is based on Ehrenfest dynamics and treats nuclear motion explicitly in the harmonic approximation. On the other hand, the electronic degrees of freedom are introduced in a localized exciton picture and are parametrized using ab initio data. I will discuss the ideas behind the method and present some early results. -- Joel Yuen-Zhou PhD candidate in Chemical Physics Harvard University CCB, 12 Oxford St. Mailbox 107, Cambridge, MA, USA. _______________________________________________ Aspuru-meetings-list mailing list Aspuru-meetings-list(a)lists.fas.harvard.edu https://lists.fas.harvard.edu/mailman/listinfo/aspuru-meetings-list

12 years, 1 month

[Aspuru-Guzik group list] Theochem Seminar in 40 minutes!

by Jarrod McClean

Just a reminder! Learn about the exciting exceptions to rules you knew to be true in general chemistry, why sometimes small ions adsorb to an air-water interface rather than in bulk solution! Speaker: Professor Phillip Geissler University of California, Berkeley Title: The diverse physical consequences of interfacial fluctuations: From Hofmeister effects to the self-assembly of passivated nanocrystals Location: MIT, Building 4 - Room 231. Time: 4:00 PM Wednesday (4/4) Abstract: At molecular scales, liquid interfaces feature strong and inhomogeneous fluctuations: in density, in surface topography, and, in the case of polar liquids, electric field. Interplay among them can lead to surprising and rich behavior quite distinct from corresponding well-understood phenomena in bulk solution. For example, many computer simulations and experiments suggest that certain small ions can strongly adsorb to the air-water interface, contrary to expectations from successful theories of bulk solvation. I will present detailed evidence that capillary waves and inhomogeneous density fluctuations play a significant role in driving this behavior. As a second example, I will discuss the effective interactions among inorganic nanorods in solution. Here, ordering of passivating ligands on the rods' surface, together with induced layering of solvent density at the liquid-rod interface, mediates a strong and unexpected attraction between rods that could not be anticipated from traditional continuum theories.

12 years, 1 month

[Aspuru-Guzik group list] [qip] NORMAN YAO (Harvard University) -- Computational Research in Boston and Beyond Seminar (CRIBB) -- Friday, April 6, 2012 -- TIME: 12:00 Noon in Building 32, Room 124

by Edward Farhi

Of interest. > > > > COMPUTATIONAL RESEARCH in BOSTON and BEYOND SEMINAR > > > DATE: FRIDAY, APRIL 6, 2012 > TIME: 12:00 NOON > LOCATION: Building 32, Room 124 (Stata Center) > > Pizza and beverages will be provided at 11:45 AM outside Room 32-124 > > > TITLE: Room-temperature Quantum Computing with Diamond Defects > > SPEAKER: NORMAN YAO (Harvard University) > > > ABSTRACT: > > The realization of a scalable quantum information processor has emerged > over the past decade as one of the central challenges at the interface of > fundamental science and engineering. In this talk, I will describe an > architecture for a scalable, solid-state quantum information processor > capable of operating at room temperature. I will begin with a review of > quantum computation that focuses on the interplay between speedup, > decoherence and fault-tolerance. I will then describe our specific > approach, which is based upon recent experimental advances involving > Nitrogen-Vacancy color centers in diamond. In particular, we demonstrate > that the multiple challenges associated with operation at ambient > temperature, individual addressing at the nanoscale, strong qubit > coupling, robustness against disorder and low decoherence rates can be > simultaneously achieved under realistic, experimentally relevant > conditions. The architecture uses a novel approach to spin-chain based > quantum information transfer and includes a hierarchy of control at > successive length scales. > > Joint work with: L. Jiang, A. V. Gorshkov, P. C. Maurer, G. Giedke, J. I. > Cirac, M. D. Lukin. > > *************************************************************************** > > Massachusetts Institute of Technology > Cambridge, MA > > > For more information, please visit... > > http://math.mit.edu/crib > > _______________________________________________ > CRiB-list mailing list > CRiB-list(a)mit.edu > http://mailman.mit.edu/mailman/listinfo/crib-list > > > _______________________________________________ qip mailing list qip(a)mit.edu http://mailman.mit.edu/mailman/listinfo/qip

12 years, 1 month

[Aspuru-Guzik group list] Excitonics Seminar: TODAY April 3, 3pm, RM 36-428

by Catherine M Bourgeois

Please post and forward to your groups ________________ Center for Excitonics Seminar Series Tuesday, April 3 , 2012 RLE Conference Room - 36-428 3:00 - 4:00pm "Singlet Fission" Josef Michl, Dept. of Chemistry and Biochemistry, University of Colorado, Boulder Abstract: Singlet fission is a process in which an excited singlet molecule shares some of its energy with a nearby ground state singlet molecule and both end up in their respective triplet excited states. By splitting one excitation into two, it has the potential for producing two electron-hole pairs from a single absorbed photon. A detailed analysis showed that this would enhance the limiting theoretical efficiency of a solar cell from the Shockley-Queisser limit of about 1/3 to almost 1/2. Only very few compounds have been shown to perform singlet fission efficiently. My research group collaborates with Nozik's group at NREL and Ratner's group at Northwestern in an effort to use first principles to devise design rules for new efficient singlet fission chromophores. Bio Prof. Josef Michl received his M.S. in Chemistry in 1961 at Charles University, and Ph.D. in 1965 at the Czechoslovak Academy of Sciences, Prague. In 1968, he did postdoctoral work at the University of Houston, University of Texas at Austin, Aarhus University, Denmark, and the University of Utah, where he stayed and became a full professor in 1975 and served as chairman in 1979-1984. In 1986-1990 he held the M. K. Collie-Welch Regents Chair in Chemistry at the University of Texas at Austin and subsequently moved to the University of Colorado, Boulder, CO, where he is Professor of Chemistry presently. He also holds an appointment in the Institute of Organic Chemistry and Biochemistry of Czech Academy of Sciences in Prague, Czech Republic since 2006. He is a member of the US National Academy of Sciences, the American Academy of Arts and Sciences, and the International Academy of Quantum Molecular Science, and an honorary member of the Czech Learned Society. Professor Michl has been the editor-in-chief of Chemical Reviews since 1984. He has co-authored five books on photochemistry and polarization spectroscopy, and over five hundred scientific papers in the areas of organic, inorganic, theoretical, and physical chemistry. His research has dealt with theoretical and experimental aspects of organic photochemical reactions, interpretation of linear and magnetic circular dichroism of cyclic pi-electron systems, preparation and characterization of organic and main-group inorganic reactive intermediates, linear chain conformations, theory of sigma electron delocalization and of spin-orbit coupling in biradicals, gas-phase cluster ions formed by sputtering, and several other topics. The primary emphasis in his current research is centered around the use of a molecular-size construction set for the assembly and characterization of surface-mounted molecular rotors, novel concepts in solar energy conversion, new structures and reactive intermediates in the chemistry of boron, silicon, and fluorine, catalysis with "naked" lithium cations, and the use of quantum chemical and experimental methods for better understanding of excited electronic states of saturated molecules. Light refreshments will be provided 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 Energy Sciences

12 years, 1 month

[Aspuru-Guzik group list] Ben & Jerry - free cone day

by Semion Saikin

http://www.benandjerrys.com/scoop-shops/feature/free-cone-day/

12 years, 1 month

[Aspuru-Guzik group list] Group Meeting Time with Phill Geissler

by Jarrod

Hi All, I have blocked out 1:45 to 3:00PM tomorrow(Tuesday 4/3) for the Aspuru-Guzik group to meet with our theochem speaker, Prof. Phillip Geissler, in the Cabot Division Room. If you happen to be around, please drop by and join us for a nice discussion! He is a great guy, and this is an excellent opportunity to get to know him! ~Jarrod

12 years, 1 month

[Aspuru-Guzik group list] Excitonics Seminar: Tues. April 3, 3pm, RM 36-428

by Catherine M Bourgeois

12 years, 1 month

[Aspuru-Guzik group list] Phill Geissler's Visit to Harvard and Theochem Seminar

by Jarrod

Hi All, Prof. Phillip Geissler ( http://www.cchem.berkeley.edu/plggrp/index.html ) is visiting Harvard on Tuesday, April 3rd as part of the Boston Area Theoretical Chemistry Lecture Series, which will take place the following day at MIT. There are some open slots in his schedule on Tuesday afternoon to meet with him, either personally or in a group. Also, there are some slots open to have dinner with him as well. Please email me if you are interested at jmcclean(a)fas.harvard.edu. Also, I would like to invite you all to attend his lecture on Wednesday(4/4) at MIT Building 4, Room 231 at 4:00PM. The title of the talk will be "The diverse physical consequences of interfacial fluctuations: From Hofmeister effects to the self-assembly of passivated nanocrystals". It will be part instructional, part results oriented, as is the style of the Theochem seminars. Speaking as someone who had Prof. Geissler for three different classes in undergrad, I think I'm in a position to say that he is a lecturer without equal, and this is something worth seeing! So I hope to see many of you there! Thank you, ~Jarrod

12 years, 1 month

2024

2023

2022

2021

2020

2019

2018

2017

2016

2015

2014

2013

2012

2011

2010

2009

2008

2007

2006

aspuru-list April 2012