aspuru-list October 2014

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30 participants
81 discussions

[Aspuru-Guzik group list] Excitonics Seminar Speaker: Akshay Rao, Nov. 4, 2014: 4:30 PM/ 6-120

by Catherine M Bourgeois

Please post and forward to your groups. ------------------------------------------- CENTER FOR EXCITONICS SEMINAR SERIES: Harnessing Spin, Delocalization and Coherence in Molecular Semiconductors November 4, 2014 at 4:30pm / 6-120 Akshay Rao Optoelectronics Group, Cavendish Laboratory, University of Cambridge [a_rao_01] Abstract: For more than three decades the electronic properties of molecular semiconductors have been described as 'limited by disorder'. Thus, attempts to improve their performance have mainly focused on materials properties such as improving crystallinity and charge mobility. But recent results suggest that some of the most interesting and technologically relevant properties of these systems emerge from the interplay of spin, delocalisalised electronic states, coherent charge motion and vibrational coherence. In this talk I will discuss how these 'disordered' materials can harness these phenomena to enable 100% efficient photon to electron conversion in photovoltaics [1-3] and 200% efficient conversion of spin-singlet excitons to spin-triplet excitons via singlet excitons fission. I will also discuss all optical methods to couple singlet fission with conventional inorganic semiconductors [4], with an aim of overcoming thermalisation losses in photovoltaics, and the unique spin properties of helical molecular systems. [1] Science, 335, 6074, 1340-1344, (2012), [2] Nature 500, 435-439 (2013), [3] Science, 343, 6170, 512-516, (2014), [4] Nature Materials, DOI: 10.1038/NMAT4093, (2014) Bio: Akshay Rao is an Advanced Research Fellow and Group Leader at the Cavendish Laboratory, University of Cambridge. His is interested in the electronic and optical properties of molecular semiconductors, quantum dots and novel nanoscale structures. He has worked extensively on organic photovoltaics as well as singlet exciton fission in molecular semiconductors, using ultrafast spectroscopy to elucidate the how charge delocalisation, spin and vibrational coherence underlie the physics of these systems. Akshay received his undergraduate degree from St Stephen's College, University of Delhi in 2006 and his MSc from the University of Sheffield in 2007. He received his PhD from the University of Cambridge in 2011, with Prof. Sir Richard Friend. From 2011 to 2014 he held a Junior Research Fellowship. As of October 2014, he is setting up an independent research group at the University of Cambridge.

9 years, 7 months

[Aspuru-Guzik group list] [qip] postdoc at UMD, deadline Dec 30

by aram harrow

of interest for those graduating this year. ---------- Forwarded message ---------- Dear Aram, As you may know, we have recently started a new Joint Center for Quantum Information and Computer Science (QuICS) at the University of Maryland. We have postdoc positions available, and I would appreciate very much if you could let potential candidates know about this opportunity. Please feel free to share the following announcement. Best, Andrew The Joint Center for Quantum Information and Computer Science (QuICS, http://quics.umd.edu) is seeking exceptional candidates for the QuICS Hartree Postdoctoral Fellowships in Quantum Information and Computer Science. QuICS is a research partnership between the University of Maryland (UMD) and the National Institute of Standards and Technology (NIST), with the support and participation of the Research Directorate of the National Security Agency/Central Security Service. Located at the University of Maryland just outside of Washington, D.C., the center advances research and education in quantum computer science and quantum information theory. Ongoing projects at QuICS include theoretical and experimental research on quantum algorithms, quantum complexity theory, quantum communication, quantum key distribution, post-quantum cryptography, and more. QuICS Postdoctoral Fellows are expected to work in close collaboration with one or ideally more than one Center Fellows, and will have opportunities to interact with leading computer scientists and theoretical and experimental physicists at UMD and NIST. Successful applicants may focus on quantum information, quantum complexity, post-quantum cryptography, quantum algorithms, quantum communication, or a related area. Applicants are encouraged to contact QuICS Fellows directly to inquire about current research interests. The term of appointment is two years, with a competitive salary plus benefits and a small stipend for research expenses. The application deadline for full consideration is December 30, 2014, but applications may be considered until the positions are filled. Applicants should submit a Curriculum Vitae including a complete publication list and a two-page Research Statement, and should arrange for three reference letters to be sent to quicspostdoc15(a)umiacs.umd.edu. The fellowships are named in honor of Douglas Hartree, who worked at NIST in the mid 1900s and who made fundamental advances in physics and computation. The University of Maryland, College Park, actively subscribes to a policy of equal employment opportunity, and will not discriminate against any employee or applicant because of race, age, sex, color, sexual orientation, physical or mental disability, religion, ancestry or national origin, marital status, genetic information, or political affiliation. Minorities and women are encouraged to apply. _______________________________________________ qip mailing list qip(a)mit.edu http://mailman.mit.edu/mailman/listinfo/qip

9 years, 7 months

[Aspuru-Guzik group list] many-body theory book?

by Martin Blood-Forsythe

Hi all, A while back I think I lent a copy of "Many-Body Quantum Theory in Condensed Matter Physics: An Introduction" by Bruus & Flensberg to someone in the group. Does anyone have it? Thanks, -Martin

9 years, 7 months

[Aspuru-Guzik group list] Special HQOC Speaker today at 3pm, L425: Gurudev Dutt

by Coleman, Karl

We will have a special HQOC speaker to at 3:00 pm today in Lyman 425. Prof. Gurudev Dutt, visiting from University of Pittsburgh, is going to speak about "Geometric Phase and Optical Trapping with NV Spin Qubits." See you there!

9 years, 7 months

[Aspuru-Guzik group list] 11/05/2014, Michal Lipson - HQOC/ITAMP Joint Quantum Sciences Seminar

by Coleman, Karl

HQOC/ITAMP Joint Quantum Sciences Seminar Wednesday, November 5, 2014 4:00 PM, Jefferson 250 Prof. Michal Lipson, Cornell University Inducing Photonic Transitions for Enabling Next Generation Silicon Photonics We show that photonic transitions enables novel functionalities on-chip including: CMOS compatible isolators (critical for on-chip networks) , ultra-high speed modulators (critical for high bandwidth datacom) as well as effective magnetic field for photons. Michael Burek, Loncar Lab High-Q Optical Nanocavities in Bulk Single-Crystal Diamond Postdoc Presentation begins at 4:00 PM Refreshments are served from 4:10-4:30 PM Guest Presentation begins at 4:30 PM Karl Coleman HQOC Laboratory Administrator Faculty Assistant to Profs. Greiner and Lukin Harvard University Department of Physics 17 Oxford Street Cambridge, MA 02138 P: (617) 496-2544 F: (617) 496-2545

9 years, 7 months

[Aspuru-Guzik group list] [IACS-events] REMINDER: IACS Seminar with Chris Wiggins (The New York Times)---- TODAY @ 1PM

by Baker, Natasha

Date: Friday, October 31, 2014 Location: Maxwell Dworkin G115, 33 Oxford Street, Cambridge MA 02138 Speaker: Chris Wiggins, Chief Data Scientist, The New York Times Time: Informal lunch with speaker, 12:30pm. Talk, 1:00pm Title: Data Science at The New York Times Abstract: The New York Times is a technology company that aims not only to produce great content, but also to ensure the reach and impact of its journalism. In terms of machine learning tasks, there is a growing effort within the engineering division to reframe many of the central and most necessary business goals to maximize the paper's reach. Chris will give examples of machine learning challenges he has addressed in his role as Chief Data Scientist at The New York Times, and illustrate how they compare with Data Science as understood in the natural sciences. He will also answer questions about working at NYT. gCal<https://www.google.com/calendar/render?cid=http://www.seas.harvard.edu/cale…> ; iCal<UrlBlockedError.aspx> <https://email.seas.harvard.edu/owa/UrlBlockedError.aspx> *********************** UPCOMING SEMINARS 11/14 Bill Henshaw (Rensselaer Polytechnic Institute) 11/21 Aaron Adcock and Shankar Kalyanaraman (Facebook) Visit http://iacs.seas.harvard.edu/events to subscribe to our Google calendar, manage your subscription to this mailing list, or access video and audio recordings of previous seminars. _______________________________________________ Iacs-events mailing list Iacs-events(a)seas.harvard.edu https://lists.seas.harvard.edu/mailman/listinfo/iacs-events

9 years, 7 months

[Aspuru-Guzik group list] Fwd: Rudi Schaefer's talk on November 6

by Cynthia M. Chew

Cynthia M. Chew Faculty Assistant | Aspuru-Guzik Research Group Department of Chemistry and Chemical Biology | Harvard University 12 Oxford Street | Mallinckrodt 112 | Cambridge, MA 02138 617.496.1716 office | 617.496.9411 fax http://aspuru.chem.harvard.edu/ ---------- Forwarded message ---------- From: Morrison, Judy <morrison(a)chemistry.harvard.edu> Date: Thu, Oct 30, 2014 at 3:09 PM Subject: Rudi Schaefer's talk on November 6 To: "Chew, Cynthia" <cynthiachew(a)chemistry.harvard.edu> Hi Cynthia, Would you please forward this announcement to the Aspuru-Guzik group? Thanks! Next Thursday November 6 Rudi Schaefer of the Faculty of Physics, University of Duisburg-Essen will visit Professors Heller and Aspuru-Guzik, and will give a talk at 1:30 p.m. in the Division Room to which both groups are invited. Title and abstract are as follows: Title: Financial correlations: From market states to random matrix averages Abstract: In recent years the financial market has dominated the news like never before. Especially after the default of Lehman Brothers and the bail-out of AIG, questions about the stability of the financial system have found their way into the general public’s interest. Here I want to give a short introduction to the interdisciplinary field of econophysics. Starting from extensive empirical studies, we aim to achieve a better fundamental understanding of the financial market as a complex system. My main focus will be on the non-stationarity of correlations. We are able to identify different states of the market and study their time evolution. In particular in times of crises we observe a characteristic behavior. To better understand the dynamics of correlations and to incorporate this knowledge into models is an essential part of current and future research in this field. At the end of my talk I will discuss possible applications of our methodology to other complex systems with strongly non-stationary characteristics. Best wishes, Judy Judy Morrison Assistant to Professors Eugene Shakhnovich and Eric Heller Department of Chemistry and Chemical Biology Harvard University 12 Oxford. St., M-108 Cambridge, MA 02138 phone: (617) 495-8733 fax: (617) 384-9228 email: morrison(a)chemistry.harvard.edu Judy Morrison Assistant to Professors Eugene Shakhnovich and Eric Heller Department of Chemistry and Chemical Biology Harvard University 12 Oxford. St., M-108 Cambridge, MA 02138 phone: (617) 495-8733 fax: (617) 384-9228 email: morrison(a)chemistry.harvard.edu

9 years, 7 months

[Aspuru-Guzik group list] [qip] Friday the 31st

by Edward Farhi

Hi Quanta We will meet tomorrow (Halloween) at 11:00 in 6-310. I am going to give a preview of a new quantum algorithm that Jeffrey and Sam and I are now writing a paper on. 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

9 years, 7 months

[Aspuru-Guzik group list] [Aspuru-meetings-list] Reminder: Group meeting at 1:30pm

by Jennifer Wei

Hi everyone, This is a reminder that today's group meeting is an hour earlier at 1:30pm. Come see Nico present on his research. Jennifer _______________________________________________ Aspuru-meetings-list mailing list Aspuru-meetings-list(a)lists.fas.harvard.edu https://lists.fas.harvard.edu/mailman/listinfo/aspuru-meetings-list

9 years, 7 months

[Aspuru-Guzik group list] Fwd: An invitation to submit to a Nanotechnology focus collection: 'Big, Deep and Smart Data in Nanotechnology'

by Alan Aspuru-Guzik

Dear all, To all materials screening types, let me know if you are interested or would have someting in time for this special issue? I am not so sure something appropriate is on the pipeline, but maybe there is a specialized paper that we want to send there. Alan Alán Aspuru-Guzik | Professor of Chemistry and Chemical Biology Harvard University | 12 Oxford Street, Room M113 | Cambridge, MA 02138 (617)-384-8188 | http://aspuru.chem.harvard.edu | http://about.me/aspuru ---------- Forwarded message ---------- From: Maggie Simmons <Maggie.Simmons(a)iop.org> Date: Thu, Oct 30, 2014 at 9:58 AM Subject: An invitation to submit to a Nanotechnology focus collection: 'Big, Deep and Smart Data in Nanotechnology' To: alan(a)aspuru.com Dear Professor Aspuru-Guzik, It is our great pleasure to invite you to participate in a forthcoming focus collection in *Nanotechnology* devoted to “Big, Deep and Smart Data in Nanotechnology”, edited by Sergei Kalinin, Bobby Sumpter and Ichiro Takeuchi. In this collection, opening in *January 2015*, we aim to capture recent advances in the application of big data to materials science. This is in terms of the output of imaging, theoretical, computational and synthesis tools to physically and chemically relevant information, and establishing synergies across the field. We further aim to explore the transition of big data science of dimensionality reduction and classification to physically based deep data approaches and history- and context-informed smart data technology. Your work represents a good example addressing a number of these issues, and hence, we would greatly welcome your contribution. In the last decade, the emergence of internet technologies has fundamentally changed the way that we live and interact by providing instant information via mobile communications. These advances are enabled by the large-scale application of big data technologies to massive geographic, personal and business information. However, the new opportunities offered by big data in physical sciences are still largely unexplored. Indeed, theoretical modeling now provides scientists with information to millions of dynamic degrees of freedom in computer simulations. The recent advances in electron and scanning probe microscopy have opened the veritable floodgates of high-veracity information on atomic positions and functionality. This is often in the form of multi-dimensional datasets containing partial or full information on atomic positions, functionalities *etc. *Similarly, local functional imaging tools allow chemical characterization and property measurements of naturally heterogeneous materials. Combinatorial materials science utilizes high-throughput synthesis tools and rapid characterization techniques to quickly explore novel material phases in individual library experiments. This provides mapping of a variety of physical properties across vast compositional phase spaces. However, harnessing the information contained in electronic structure calculations, molecular dynamics simulations, high-resolution images, or combinatorial libraries, still remains a challenge. Speed and timeliness of data reduction processes as well as their computational cost are critical aspects of research in such topics. As one of the leading researchers in this area, we would be delighted if you would consider contributing a research article to the collection. We anticipate receiving original research papers of approximately 5-8 journal pages (allowing approximately 900 words per page). This length is for guidance only; if your article is longer or shorter, we will be happy to consider it. Accepted article types can be found on the *Nanotechnology** scope* <http://iopscience.iop.org/0957-4484/page/Scope> pages and we will consider any alternative article types, such as review material or communications, on a case-by-case basis. Each article will be published as soon as it has been through the publication process and all contributions will be collected via a dedicated webpage together with an introductory editorial. On an ongoing basis future contributions to the issue will be added as and when they have also been through the publication process. In this way the publication of individual contributions will not incur any delay. To ensure the timeliness of this collection, we have set a target submission period of *1 January 2015* through to *31 March 2015 *for contributions. Even though the submission deadline is some time away we would be very grateful if you could let us know whether you are intending to contribute to this issue by *1 December 2014*. Please kindly reply to *maggie.simmons(a)iop.org* <maggie.simmons(a)iop.org> Best wishes, Maggie Simmons, *Publishing Editor* On behalf of the Guest Editors: Sergei Kalinin, *Oak Ridge National Laboratory* Bobby Sumpter, *Oak Ridge National Laboratory* Ichiro Takeuchi, *University of Maryland* *Maggie Simmons* Publishing Editor, *Nanotechnology* IOP Publishing Temple Circus, Temple Way, Bristol BS1 6HG, UK Direct line: +44 (0)117 930 1093 www.iopscience.org/nano Celebrating Nanotechnology's 25th volume. <http://iopscience.iop.org/0957-4484/page/25th-volume> ------------------------------ This email (and attachments) are confidential and intended for the addressee(s) only. If you are not the intended recipient please immediately notify the sender, permanently and securely delete any copies and do not take action with it or in reliance on it. Any views expressed are the author's and do not represent those of IOP, except where specifically stated. IOP takes reasonable precautions to protect against viruses but accepts no responsibility for loss or damage arising from virus infection. For the protection of IOP's systems and staff emails are scanned automatically.. Institute of Physics. Registered charity no. 293851 (England & Wales) and SCO40092 (Scotland) Registered Office: 76 Portland Place, London W1B 1NT ------------------------------

9 years, 7 months

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aspuru-list October 2014