aspuru-list October 2012

aspuru-list@lists.fas.harvard.edu

25 participants
56 discussions

[Aspuru-Guzik group list] Chemistry Career Panel

by Laszlo Seress

Hi Group, As I mentioned in group meeting yesterday, the chemistry club will be hosting a career panel on Tuesday at 7:30 in Pfizer. A blurb is below: Where: Mallinckrodt Lab, Pfizer Lecture Hall When: 7:30 pm, Tuesday, October 23rd The panelists (and their specialties): Professor Tobias Ritter <http://www.chem.harvard.edu/groups/ritter/> (academia) Professor Corinne Augelli-Szafran<http://lead.bwh.harvard.edu/LEAD_Augelli-Szafran.htm> (industry) Dr. Jordan Cummins, M.D., Ph.D.<http://www.massgeneral.org/dermatology/doctors/doctor.aspx?id=18472> (medicine) Dr. C. Hunter Baker, J.D., M.D., Ph.D.<http://www.wolfgreenfield.com/directory/c-baker> (law) David Haber '09 <http://www.sparkcapital.com/team/david-haber/> (finance) This panel is targeted mostly towards chemistry (and chem/phys, CPB) undergraduates and graduate students, but students of other disciplines are more than welcome to attend! You'll get a lot out of it. Do you have a special question you'd like answered? Submit it here<https://docs.google.com/spreadsheet/viewform?formkey=dHBndlg2RXYyN05vMEhobU…> on our google doc so our panelists can be sure to prepare their answers! If you're suffering from midterm-induced brain freeze, don't worry - there will be a question and answer session during the panel for you to ask all your questions. Find us on Facebook: https://www.facebook.com/events/322924897805053/ -- Laszlo Ryan Seress Harvard College '14 A.B. Degree Candidate in Chemistry and Physics 1-614-670-2205 323 Cabot Mail Center Cambridge, MA 02138 seress(a)college.harvard.edu

11 years, 6 months

[Aspuru-Guzik group list] Nov 28 - Prof. Takhee Lee, Seoul National University

by Cynthia M. Chew

Dear Group, Prof Takhee Lee from Seoul National University will be visiting the department on 28th Nov to give a special talk. I've copied his bio and talk abstract below. If you are interested in meeting with him on Wed Nov 28 @ 2:15-3pm, please let me know and I will reserve the time for our group. Cynthia *Bio*: Takhee Lee is currently Associate Professor in the Department of Physics and Astronomy, Seoul National University, Korea. He graduated from Seoul National University, Korea, and received his Ph.D. from Purdue University, USA in 2000. He was a postdoctoral researcher at Yale University, USA until 2004. And, he was a faculty member in Gwangju Institute of Science and Technology, Korea from 2004 until 2011. His current research interests are molecular electronics, polymer memory devices, and graphene-electrode optoelectronic devices. He has edited 2 books and wrote 9 book chapters, 10 review articles, and 150 journal articles. He was awarded Korean Scientist of the Month Award (2010 June), Prime Minister Award (2010 April), Minister of Education, Science and Technology Award (2008 April, 2010 August), and Nano-Korea Researcher Award (2007 August) *Abstract*:*Molecular- and polymer-based electronic devices* Idea of utilizing individual molecules as the electronic components in future ultrahigh-density electronic devices has generated tremendous attention. Obtaining transistor action from molecular orbital control has been the outstanding challenge of the field of molecular electronics nearly since its inception. In this talk, I will explain a direct electrostatic modulation of orbitals in a molecular transistor configuration, with both effective gate control and enhanced resonant coupling of the orbitals to the source and drain electrodes [1]. I will also explain recently developed understanding on the electrical transport characteristics through various types of molecular junctions on flat or flexible substrates [2]. In the second part of this talk, I will present a summary on general characteristics of the materials, device structures, and switching mechanisms used in organic resistive non-volatile memory devices. Strategies for performance enhancement, integration, and advanced architectures in these devices will be presented [3]. And, if time is allowed, I will briefly discuss other research results on nanoscale logic circuits and graphene-electrode optoelectronic devices [4].

11 years, 6 months

[Aspuru-Guzik group list] Fwd: faculty position in statistical/mathematical physics (University of Louvain)

by sarah mostame

-------- Original Message -------- Subject: faculty position in statistical/mathematical physics (University of Louvain) Date: Thu, 18 Oct 2012 18:17:40 +0200 From: Philippe Ruelle <Philippe.Ruelle(a)uclouvain.be> <Philippe.Ruelle(a)uclouvain.be> To: Philippe Ruelle <philippe.ruelle(a)uclouvain.be> <philippe.ruelle(a)uclouvain.be> Dear Colleague, Dear Friend, I would like to bring to your attention the opening of a faculty position in *statistical/mathematical physics* at the University of Louvain, due to start in September 2013. Details can be found here: http://www.uclouvain.be/en-425323.html (in English) http://www.uclouvain.be/425323.html (in French) Please bear in mind that *the deadline is fixed to the 17th of December 2012, 12am.* * * I would also be grateful if you could propagate this announcement to potentially interested people. Do not hesitate to contact me in case you need additional information. Best wishes, Philippe Ruelle

11 years, 6 months

[Aspuru-Guzik group list] [qip] Friday

by Edward Farhi

Hi Quanta We will meet tomorrow at 11:00 in 6-310. Kristen will tell us about what he has been doing. There will be a seminar at 2:00 by Vladan Vuletic. See you then. 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

11 years, 6 months

[Aspuru-Guzik group list] [Aspuru-meetings-list] group meeting tomorrow

by Ryan Babbush

Hi Everyone, Tomorrow, Adrian Jinich will present his first group meeting as an official member of the Aspuru-Guzik group. We will be meeting in the usual place (Division Room) at our new time (2:30). Adrian's abstract is included below! =============================================== Towards ab initio thermochemistry of metabolism Abstract: My project deals with metabolism, the network of biochemical reactions that occur inside cells. In my group meeting presentation I will attempt to communicate the following messages: - Thermodynamics, in the form Gibbs reaction energies, is important for a family of computational models used in metabolic engineering (contraint based models) and for uncovering basic principles of metabolism. - The field of metabolic engineering would benefit from accurate ab initio estimates of Gibbs reaction energies for all known metabolic reactions (~5000). - Our initial results, which focus on the central carbon pathway of glycolysis, explore the accuracy of DFT-based estimates of deltaG's in solution and the effect of water models, number of conformers sampled, and protonation state of chemical species. Results look promising for some reactions, but those that involve large cofactors (e.g. ATP or NADH) are problematic. -- Ryan Babbush | PhD Student in Chemistry (949) 331-3943 | babbush(a)fas.harvard.edu Harvard University | Aspuru-Guzik Research Group 12 Oxford Street, Box 400 | Cambridge, MA 02138 _______________________________________________ Aspuru-meetings-list mailing list Aspuru-meetings-list(a)lists.fas.harvard.edu https://lists.fas.harvard.edu/mailman/listinfo/aspuru-meetings-list

11 years, 6 months

[Aspuru-Guzik group list] [IACS-events] Reminder: D. E. Shaw Research seminar tomorrow; IACS Fellow talk today on computational finance/astrophysics

by Rosalind Reid

Just a reminder of tomorrow's seminar, also an informal IACS Fellow seminar *today* (see below). Please mark your calendar for Friday, Nov. 2, when the IACS Seminar will be given by Margot Gerritsen of Stanford University. ******** IACS Seminar Friday, October 19 An Overview of Scientific Activities at D. E. Shaw Research Paul Maragakis and Zhou Fan Maxwell-Dworkin G125 Informal lunch with speakers, 12:30pm. Talk, 1:00pm. Abstract: We at D. E. Shaw Research (DESRES) are engaged in computational biochemistry with a long-term goal of impacting biomedical research. Our group has built a specialized supercomputer, Anton, that has enabled millisecond-long molecular dynamics simulations of proteins. This talk will provide an overview of our group and will review several of our recent, high-impact scientific results. The speakers will also answer questions about working at DESRES. Speakers: Paul Maragakis performs molecular dynamics simulations of biomolecular systems, with a recent focus on validating the methodology of simulations through comparison with experimental data. Paul performed the research leading to his Ph.D. in physics at the Max Planck Institute of Quantum Optics. He earned a B.Sc. in physics at the Aristotle University of Thessaloniki. Prior to joining DESRES, he held a Marie Curie Fellowship while working with Martin Karplus jointly in the chemistry departments of the University of Strasbourg and Harvard, where he studied the behavior of floppy, sticky, fluctuating, ever-changing proteins. His earlier work includes a postdoctoral fellowship in physics at Harvard, where he studied the electronic properties of DNA. Originally from Greece, Paul enjoys traveling, reading, cooking, fine espresso and spending time with his family. Zhou Fan develops computational chemistry software tools and contributes to the statistical analysis of molecular dynamics simulations. Zhou earned an M.A.St. in mathematics as a Churchill Scholar at Cambridge University. He graduated summa cum laude from Harvard University with an A.B. in mathematics and a S.M. in computer science. Outside of the office, Zhou enjoys piano, choral singing and Sichuan cuisine. ********** Informal IACS Fellow seminar today Sequential Monte Carlo Methods for Computational Finance and Astrophysics Ayub Hanif Thursday, Oct. 18, 4:00 pm Maxwell Dworkin G135 Abstract: In this talk I’ll provide a brief introduction to computational finance. I’ll discuss the stochastic volatility problem and present simulation results of various sequential Monte Carlo methods. During my time at Harvard IACS, I have been assessing the efficacy of these methods for modeling regularised and irregular light curves in astronomy. I will present my findings along with analysis and suggestions for directions of future research at the interface of computational finance and time-series analysis in astronomy. Bio: Ayub Hanif is a Fellow at the Institute for Applied Computational Science at the Harvard School of Engineering and Applied Sciences. He is a Ph.D. research student in the Intelligent Systems & Doctoral Centre in Financial Computing at University College London. Prior to pursing his doctorate, he worked in market intelligence at Merrill Lynch in New York and London, focusing on real-time commodities analytics. He holds a Masters in Research in Financial Computing from UCL and a Masters in Computer Science from Queen Mary, University of London. His research interests are in algorithmic and systematic trading models with a focus on high-frequency financial forecasting and statistical arbitrage. For information about future events at the Harvard Institute for Applied Computational Science, see http://iacs.seas.harvard.edu/events. _______________________________________________ Iacs-events mailing list Iacs-events(a)seas.harvard.edu https://lists.seas.harvard.edu/mailman/listinfo/iacs-events

11 years, 6 months

[Aspuru-Guzik group list] [Aspuru-meetings-list] Fwd: FW: Finley Seminar, Thursday 11 a.m, Grier A (34-401a): Please forward

by Anna B. Shin

FYI. 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/<http://?ui=2&ik=e7480c62f0&view=att&th=12eee19970eeefe4&attid=0.0.2&disp=emb&zw> ---------- Forwarded message ---------- From: Marc Baldo <baldo(a)mit.edu> Date: Wed, Oct 17, 2012 at 11:19 AM Subject: FW: Finley Seminar, Thursday 11 a.m, Grier A (34-401a): Please forward To: excitonics-faculty(a)mit.edu Cc: Catherine Bourgeois <cmbourg(a)mit.edu> Hello everyone,**** This is an announcement for a seminar that many of us may find interesting.* *** Best,**** marc**** ** ** I am writing to invite you to a seminar on "Semiconductor quantum optical nanosystems" this Thursday 11:00am in the Grier A room. The speaker will be Prof. Jonathan Finley of the Technical University Munich, Germany. The abstract of the talk is attached. I am looking forward to seeing you there! Best regards, Karl Berggren**** *Semiconductor quantum optical nanosystems* Jonathan Finley**** *Walter Schottky Institut - Centre for Nanotechnology and Nanomaterials* *TU-München, Am Coulombwall 4a, 85748 Garching, Germany* In this talk I will give an overview of several research themes pursued in my group in**** which optically active quantum dots or molecules are embedded within electrically tunable**** structures and / or tailored photonic environments. For example, we have used multicolour**** ultrafast pump-probe spectroscopy to investigate charge and spin dynamics in individual,**** electrically tunable InGaAs quantum dots and molecules. Results show how the polarization**** state of light can be faithfully mapped onto the exciton spin wavefunction, manipulated via**** geometric phase control and read out via spin-selective stimulated exciton emission or**** conditional biexciton absorption. Similar experiments performed on QD-molecules elucidate**** the comparative roles of elastic and inelastic *intra*-molecular electron tunneling and allow us**** to directly probe coupling of the molecular exciton to acoustic phonons, one of the principle**** sources of decoherence. We achieve precise hole spin initialization and monitor the real time**** coherent evolution of the hole spin wavefunction in an externally applied magnetic field.**** Dephasing of the exciton and single hole spin wavefunctions is entirely negligible over**** typical manipulation times (<4ps), facilitating very high fidelity (>97%) state control.**** Whilst light can be used to control and manipulate to such isolated matter qubits, photons**** also provide the most attractive route to couple spatially separated quantum systems. Here,**** technologies based on two-dimensional photonic crystals are attractive since they allow for**** control of coherent light-matter interactions using defect *nanocavities*, the efficient routing of**** single photons “on-chip” using *waveguides *that exploit slow light phenomena and photon**** state characterisation using *beam splitters*. The additional development of integrated single**** photon detection would open up attractive paradigms for integrated *quantum optical circuits*.**** With this motivation I will also discuss the use of slow light phenomena in GaAs photonic**** crystal waveguides to efficiently route single photons and detect them using *integrated *NbN**** superconducting single photon detectors (SSPDs) on GaAs substrates. Studies of optimised**** samples reveal that up to 96% of the photons emitted by single dot couple to the waveguide**** mode and, furthermore, NbN SSPDs on GaAs exhibit remarkable single photon detection**** efficiencies >20% at 950nm with a timing resolution <90ps. First attempts to realize**** waveguide coupled SSPDs on GaAs will also be discussed.**** _______________________________________________ Aspuru-meetings-list mailing list Aspuru-meetings-list(a)lists.fas.harvard.edu https://lists.fas.harvard.edu/mailman/listinfo/aspuru-meetings-list

11 years, 6 months

[Aspuru-Guzik group list] Prof. Marlan Scully - Special Colloquium - October 19th

by Joan Hamilton

Special Colloquium - ITAMP/HQOC Prof. Marlan O. Scully, Texas A&M Friday, October 19th at 1:30 PM Jefferson Lab 250 Talk title: Virtual Photons: From Lamb's shift and Unruh's radiation to superradiance and solar cells. -- Joan Hamilton Faculty Assistant to Profs. Lukin and Greiner HQOC Administrative Coordinator Harvard University Department of Physics 17 Oxford Street Cambridge, Ma 02138 Phone 617-496-2544 HUCTW Local Representative for the Department of Physics

11 years, 6 months

[Aspuru-Guzik group list] Party/Dinner Thursday evening!

by Joey Goodknight

Don't forget our open house is Thursday! Be in the department center at 5:45 so we can greet the first years and talk to them as they come in! Our dinner that night will be lovingly provided by everyone's favorite Somerville Taqueria! -Joey

11 years, 6 months

[Aspuru-Guzik group list] Prof. Randall Hulet - HQOC/ITAMP Joint Quantum Sciences Seminar - 10/17/2012

by Joan Hamilton

*HQOC/ITAMP Joint Quantum Sciences Seminar* **Guest Speaker: Randall Hulet, Rice University** **Title: Ultracold Atomic Fermions in Optical Lattices** ***Student Presentation by: Philip Preiss, Greiner Lab** **Title: Imaging and Manipulating a Bilayer Quantum Gas** *****Location: Jefferson Lab 250*** ***Date & Time: October 17th at 4:00 PM**** ****Refreshments will be served**** -- Joan Hamilton Faculty Assistant to Profs. Lukin and Greiner HQOC Administrative Coordinator Harvard University Department of Physics 17 Oxford Street Cambridge, Ma 02138 Phone 617-496-2544 HUCTW Local Representative for the Department of Physics

11 years, 6 months

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aspuru-list October 2012