aspuru-list November 2016

aspuru-list@lists.fas.harvard.edu

21 participants
51 discussions

[Aspuru-Guzik Group List] TODAY: Immanuel Bloch-HQOC/ITAMP Joint Quantum Sciences Seminar

by Ploucha, Clare

HQOC/ITAMP Joint Quantum Sciences Seminar Wednesday, November 30, 2016 4:00 PM, Jefferson 250 Prof. Immanuel Bloch, Max Planck Institute for Quantum Optics, LMU "Probing Hidden Non-Local Antiferromagnetism & Many-Body Localisation Using Ultracold Atoms Recent experiments with quantum gas microscopes allow for an unprecedented view and control of quantum matter in new parameter regimes and with new probes. In our fermionic quantum gas microscope, we can detect both charge and spin degrees of freedom simultaneously, thereby gaining maximum information about undoped or strongly doped fermionic Hubbard systems. The doped 1D systems are characterised by a hidden non-local antiferromagnetic (AFM) order that can be revealed using non-local string correlators, very similar to the non-local topological order in Spin-1 Haldane chains. The hidden AFM order probed in our experiments is the foundation of spin-charge separation in one-dimensional fermionic systems. Finally, I will discuss our recent experiments on novel many-body localised (MBL) states of matter that challenge our understanding of the connection between statistical physics and quantum mechanics at a fundamental level. I will also discuss very recent experiments, in which he have observed evidence for Griffith type anomalous slow transport on the ergodic side of the MBL transitions. Matthew Rispoli, Greiner Group "Quantum Gas Microscopy in the Interacting Harper-Hofstadter Model" I will describe recent experimental results in which we perform microscopy of interacting atoms in the presence of a synthetic magnetic field. A developing, exciting area in the AMO community has been the generation of artificial magnetic fields for neutral atoms, which do not naturally experience a Lorentz force [1]. This has led to many elegant studies of the kinds of single particle effects that can emerge, such as edge states, topological band structures, and the quantum hall effect [2,3,4,5,6]. In this work, we combine artificial gauge fields --- systems with topological character --- and interactions. Realizing this combination is essential to advance into the regime of fractional quantum hall physics, Chern insulators, and the like, as well as to drive explorations for new phenomena with the microscopic tools of AMO systems. In particular, I will describe our observation of interaction-induced chirality, which illustrates the rich physics that can emerge with these ingredients, even in the few particle limit. [1] Y.J. Lin, et. al., PRL 462, 628-632 (2009) [2] M. W. Zwierlein, et. al., Nature 435, 1047-1051 (2005) [3] B. K. Stuhl, et. al, Science 349, 1514-1518 (2015) [4] M. Mancini, et. al, Science 349, 1510-1513 (2015) [5] M. Aidelsburger, et. al., PRL 111, 185301 (2013) [6] Hirokazu Miyake, et. al., PRL 111, 185302 (2013) Student Presentation from 4:00-4:10 PM Refreshments Served from 4:10-4:30 PM Guest Presentation from 4:30-6:00 PM -- Clare Ploucha Faculty Assistant to Professors Lukin & Greiner and their labs Department of Physics 17 Oxford St., Lyman 324A Cambridge, MA 02138 P. (617) 496-2544

7 years, 4 months

[Aspuru-Guzik Group List] Excitonics Seminar: Tuesday, Nov 29, 4:30 pm, 36-428

by Catherine M Bourgeois

Here's next Tuesday's seminar: Please post and forward to your groups. CENTER FOR EXCITONICS SEMINAR SERIES Plasmons, Excitons and Theory November 29, 2016 at 4:30 pm/36-428 George Schatz Northwestern University, Department of Chemistry [schatz2] This talk focuses on new phenomena that have arisen from recently developed plasmonic/excitonic structures that have been made in the Odom and Mirkin groups. We begin with a discussion of the optical properties of 2D lattices of gold nanoparticles in the presence of laser dyes. Here show that the resulting plasmonic lasers can be described using a model that couples classical electrodynamics for the plasmonic particles with a four-level model of the excitons. Exciton transport that is mediated by plasmons is also described, and we show how laser properties are modified through the use of multiply periodic array structures that satisfy double diffraction conditions. In a second part of the talk, we examine 3D superlattices, which can either be fabricated as films or as rhombic dodecahedral (RD) crystal habits. We show that the films composed of layers of silver and gold particles exhibit surprising non-reciprocal behavior in which transmission depends on the direction that light crosses the layer. We also show that RD crystals show useful capabilities as micron-scale lenses and as Fabry-Perot cavities. George C. Schatz is Charles E. and Emma H. Morrison Professor of Chemistry and of Chemical and Biological Engineering at Northwestern University. He received his undergraduate degree in chemistry at Clarkson University and a Ph. D at Caltech. He was a postdoc at MIT, and has been at Northwestern since 1976. Schatz has published three books and over 800 papers. Schatz is a member of the National Academy of Sciences, the American Academy of Arts and Sciences, the International Academy of Quantum Molecular Sciences, and he has been Editor-in-Chief of the Journal of Physical Chemistry since 2005. Recent awards include the Debye and Langmuir Awards of the ACS, the S F Boys-A Rahman Award of the Royal Society of Chemistry, the Hirschfelder Award of the University of Wisconsin. He is a Fellow of the APS, RSC, ACS and AAAS. Schatz is a theoretician who studies the optical, structural and thermal properties of nanomaterials, including plasmonics and excitonics, DNA and peptide nanostructures, and carbon-based materials, with applications in chemical and biological sensing, electronic and biological materials, high performance fibers, and solar energy. His past work has also been concerned with understanding the dynamics of chemical reactions in the gas phase and in gas-surface collisions. 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

7 years, 4 months

[Aspuru-Guzik Group List] Theochem: Michael Feig visit reminder

by Jennifer Wei

Hi Everyone, See the reminder below from Victor about tomorrow's Theochem lecture by Prof. Michael Feig. Cheers, Jennifer — Dear Aspuru-Guzik Group, Tomorrow, Wednesday Nov 30, Professor Michael Feig of Michigan State University will be giving a Theochem seminar as part of his visit to Harvard, BU, and MIT. The talk will be at MIT in 4-163 between 4:15 and 6:15. Please see the title and talk abstract below. Best regards, Victor *Insights into the Structure and Dynamics of Biomolecules in Cellular Environments from Computer Simulations* Biological macromolecules such as proteins and nucleic acids have become well-understood at the single molecule level but it is much less clear how the structure-dynamics-function paradigms established largely under dilute and homogeneous conditions hold up under realistic biological conditions where crowding, heterogeneity, and the presence of a diverse set of metabolites are important factors. Using computational approaches, we are exploring model systems of dense crowded systems ranging from simple spherical crowder models to concentrated protein solutions and a comprehensive model of a bacterial cytoplasm with all of the key components present in full atomistic detail. Simulations of these systems show altered dynamic properties, suggest the possibility of protein native state destabilization due to protein-protein and protein-metabolite interactions, altered solvent and metabolite behavior, and non-specific interactions between functionally related enzymes as a result of crowding. Some of the work described involves very large scale computer simulations that were enabled by methodological advances that will also be briefly discussed.

7 years, 4 months

[Aspuru-Guzik Group List] Fwd: Dr. Yi Cui's talk at The Rowland Institute at Harvard

by Siria Serrano

Dear Group, Please see the email below and reply directly to me before end of day Monday, November 28th if you plan to attend so we can send a headcount over to Rowland. Cheers, Siria ---------- Forwarded message ---------- From: Alan Aspuru-Guzik <aspuru(a)chemistry.harvard.edu> Date: Tue, Nov 22, 2016 at 9:04 PM Subject: Re: Dr. Yi Cui's talk at The Rowland Institute at Harvard To: Alexis Loving <loving(a)rowland.harvard.edu>, "aspuru.staff" < aspuru.staff(a)gmail.com> Alexis, Many thanks! I will be in Australia that day so I will have to visit. I am asking Siria to get a headcount of group members interested and get back to you, Best, 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 On Tue, Nov 22, 2016 at 4:30 PM, Alexis Loving <loving(a)rowland.harvard.edu> wrote: > [image: SaneBox] > > *SaneAttachments*: The attachments in this email have been copied to > Dropbox by the magic of SaneBox <http://sanebox.com>. Click link bellow: > > Yi Cui presentation 12.01.16.pdf <https://db.tt/9BOquh3l> - > Dropbox/SaneBox/Alexis Loving/Dr. Yi Cui's talk at The Rowland Instit..., > 2016-11-22 04.30.41 PM/ > > * Click the link above or find it in Dropbox with the path of the file > provided next to the link. You can also forward this email as usual. Learn > more > <http://help.sanebox.com/customer/portal/articles/473528-sane-attachments>. > * > > ------------------------------ > > November 22, 2016 > > Dear Professor Aspuru-Guzik, > > We are hosting Dr. Yi Cui from Stanford University for a seminar on > Thursday, December 1, 2016 at 4PM here at Rowland. On behalf of Professor > Cynthia Friend, Director here at Rowland, we would be delighted if you can > make the talk. Please feel free to distribute the attached abstract of the > talk to whom you see fit. We ask that you, and those to whom the abstract > is distributed, respond to us if you or they intend attending. We need to > get an idea of head count. > > Directions to the Institute can be found at: > http://www2.rowland.harvard.edu/directions-rowland > > Looking forward to hearing from you, > > Alexis Loving > Staff Assistant > 617.497.4614 > Rowland Institute at Harvard > 100 Edwin H. Land Blvd > Cambridge, MA 02142 > loving(a)rowland.harvard.edu > > > > > -- *Siria Serrano* *Faculty Assistant* *Aspuru-Guzik Group* *Harvard University **Department of Chemistry and Chemical Biology* *12 Oxford St. M 136* *Cambridge, MA 02138* *P:** (617) 496-1716 <%28617%29%20496-1716>** F: **617-496-9411 <617-496-9411>*

7 years, 4 months

[Aspuru-Guzik Group List] ITAMP/HQOC postdoc lunch with Prof. I. Bloch

by Hannes Pichler

Dear colleagues, this Wednesday, November 30th, we will take this week’s ITAMP/HQOC speaker Immanuel Bloch out for postdoc lunch at Russel House Tavern. If you would like to join, please sign up via the following link (limited to 8 people): http://doodle.com/poll/eyuptiv7zpbgmzfy <http://doodle.com/poll/eyuptiv7zpbgmzfy> We meet at LISE Cafe at 12:00 noon. Best, Hannes

7 years, 4 months

[Aspuru-Guzik Group List] FW: [Notice]: Tue 11/29 @12noon, Lecture: Prof. Harry Atwater (Caltech)

by Catherine M Bourgeois

FYI: Prof. Harry Atwater Professor of Applied Physics and Materials Science California Institute of Technology Date: Tuesday, November 29th Time: 12noon-1PM (*Food will be served* 11:45AM-12noon) Place: 4-163 Tuning Light-Matter Interactions in Nanostructures Approaching the Atomic-Thickness Scale Progress in understanding resonant subwavelength optical structures has fueled a worldwide explosion of interest in both fundamental processes and nanophotonic devices for imaging, sensing, solar energy conversion and thermal radiation control. However, for most nanophotonic materials, the optical properties are fixed at the time of fabrication. Achieving active tunable of the optical properties to modify the light matter interaction at the nanoscale which is an emerging opportunity to bringmetamaterials and metasurfaces to life as dynamic objects composed of tunable nanoscaleresonators and antennas for various application. Electrical tuning of the carrier density in conducting oxides, transition metal nitrides and two-dimensional materials enables the optical dispersion of individual structures to be altered from dielectric to plasmonic, yielding active nano-antenna arrays with gate tunable phase and amplitude modulation of absorption, radiative emission and scattering. Operation of individual patch antennas and beam steering phased arrays of antennas will be discussed. MIT Lemelson Presidential Fellow NSF Graduate Research Fellow Photonics and Modern Electro-Magnetics Group<http://www.mit.edu/~soljacic/>

7 years, 4 months

[Aspuru-Guzik Group List] Fwd: Please sign+share climate change open letter to Trump

by Jennifer Wei

Hi everyone, Ploy, a graduate student in Earth and Planetary Sciences, is writing an open letter to Trump asking for climate change action in the US. See her letter below for more details and sign if you are interested in helping. Cheers, Jennifer ---------- Forwarded message --------- From: Achakulwisut, Pattanun <pachakulwisut(a)fas.harvard.edu> Date: Mon, Nov 28, 2016 at 11:16 AM Subject: Please sign+share climate change open letter to Trump To: Jacob Students Group <jacob-students(a)seas.harvard.edu>, Graduate Students <epsgrad_students(a)lists.fas.harvard.edu> Hi all, I hope you'll consider adding your name to this open letter <https://urldefense.proofpoint.com/v2/url?u=https-3A__docs.google.com_docume…> which I've helped to draft. We're hoping to collect signatures from climate/energy experts and Earth scientists* nationwide, urging President-elect Trump to uphold American leadership against climate change. *If you'd like to sign, please reply with your name, title, and institutional affiliation as you'd like them to appear on the letter. *(**pursuing or having completed a PhD or equivalent in any field related to climate change, Earth science, or energy*) After we have collected a sufficient number of signatures from academics, the letter will be opened to the general public, asking them to support our call for climate action. While we know that an open letter alone will not be enough, we hope that it can nonetheless serve to articulate the unity and vision of this nation behind climate action. If you are concerned about the threat that Trump poses to progress on climate policy and clean energy, *please sign now and urge your colleagues to do so too by Dec 5, 2016*. * Thank you for your consideration, * Ploy --- Ploy Achakulwisut PhD Candidate, Atmospheric Chemistry Modeling Group Harvard University LinkedIn <https://urldefense.proofpoint.com/v2/url?u=https-3A__www.linkedin.com_in_pl…> | @_APloy <https://urldefense.proofpoint.com/v2/url?u=http-3A__twitter.com_-5FAPloy&d=…> *Stay up-to-date on climate/energy news & ways to take action with Tip Of The Iceberg <https://urldefense.proofpoint.com/v2/url?u=http-3A__climatetoti.com_&d=CwMF…>.* _______________________________________________ Epsgrad_students mailing list Epsgrad_students(a)lists.fas.harvard.edu https://lists.fas.harvard.edu/mailman/listinfo/epsgrad_students

7 years, 4 months

[Aspuru-Guzik Group List] Excitonics Seminar: TODAY, Nov 28, 4pm, 6-120

by Catherine M Bourgeois

TODAY! Please post and forward to your groups: ________________ CENTER FOR EXCITONICS SEMINAR SERIES: Materials and devices for the renewable synthesis of fuels and feedstocks November 28, 2016 at 4pm/ 6-120 Ted Sargent University of Toronto, Department of Electrical Engineering and Computer Science [sargent001_000] Tremendous progress in the cost-effective conversion of solar and wind energy into electrical power brings about a new challenge: the massive (seasonal-scale) storage of energy [1]. We focus on using computational materials science, spectroscopies including ultrafast and synchrotron, and advances in materials chemistry, to create new catalysts for CO2 reduction and oxygen evolution. I will discuss recent advances including a new high-activity OER catalyst [2] and a low-overpotential CO2 reduction catalyst based on field-induced reagent concentration [3]. I will also touch on related materials design problems in optoelectronics, including the design of composite organic-inorganic materials for photon-to-electron [4] and electron-to-photon [5] conversion. [1] A. Bernstein, E. H. Sargent, A. Aspuru-Guzik, ...M. Molina, "Renewables need a grand-challenge strategy," Nature, DOI:10.1038/538030a, 2016. [2] B. Zhang, ... A. Vojvodic, E. H. Sargent, "Homogeneously dispersed, multimetal oxygen-evolving catalysts," Science, vol. 352, pp. 333-337. [3] M. Liu, ... S. O. Kelley, E. H. Sargent, "Enhanced electrocatalytic CO2 reduction via field-induced reagent concentration," Nature, doi:10.1038/nature19060, 2016. [4] C. R. Kagan, Efrat Lifshitz, E. H. Sargent, D. V. Talapin, "Building devices from colloidal quantum dots," Science, 10.1126/science.aac5523, 2016. [5] Z. Ning, E. H. Sargent, "Quantum-dot-in-perovskite solids," Nature, vol. 523, pp. 324-328, 2015. Ted Sargent holds the rank of University Professor in the Edward S. Rogers Sr. Department of Electrical and Computer Engineering at the University of Toronto. He holds the Canada Research Chair in Nanotechnology and also serves as Vice President - International for the University of Toronto. He is founder and CTO of InVisage Technologies and a co-founder of Xagenic Inc. He is a Fellow of the Royal Society of Canada; a Fellow of the AAAS "...for distinguished contributions to the development of solar cells and light sensors based on solution-processed semiconductors;" and a Fellow of the IEEE "...for contributions to colloidal quantum dot optoelectronic devices." He is Fellow of the Canadian Academy of Engineering for "...ground-breaking research in nanotechnology, applying novel quantum-tuned materials to the realization of full-spectrum solar cells and ultra sensitive light detectors. The impact of his work has been felt in industry through his formation of two start-up companies." He received the B.Sc.Eng. (Engineering Physics) from Queen's University in 1995 and the Ph.D. in Electrical and Computer Engineering (Photonics) from the University of Toronto in 1998. 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

7 years, 4 months

[Aspuru-Guzik Group List] Fwd: Postdoc fellowship

by Alan Aspuru-Guzik

---------- Forwarded message --------- From: Stephanie Wehner - QuTech <s.d.c.wehner(a)tudelft.nl> Date: Mon, Nov 28, 2016 at 8:51 PM Subject: Postdoc fellowship To: Alan Aspuru-Guzik <alan(a)aspuru.com> Dear Alan, Hope all is well with you! There is a special postdoc fellowship available here http://leadingfellows.eu/ that may be of interest to some members of your group. As an independent fellowship, we would also welcome an excellent independent postdoc for example in the realm of simulations - given we have quite enough experimental platforms to go with it :-) Please feel free to forward this email. I'm happy to give more info to interested candidates. Best, Stephanie -- Antoni van Leeuwenhoek Professor QuTech, Delft University of Technology http://qutech.nl/person/stephanie-wehner-roadmap/ Applied Physics, Building 22, Room B206 Phone: +31 15 27 87746 Mail: QuTech, Lorentzweg 1, 2628 CJ Delft, Netherlands

7 years, 4 months

[Aspuru-Guzik Group List] Fwd: NVIDIA Graduate Fellowship Application is Now Open!

by Teresa Tamayo

---------- Forwarded message ---------- From: NVIDIA <news(a)nvidia.com> Date: 2016-11-23 11:09 GMT-06:00 Subject: NVIDIA Graduate Fellowship Application is Now Open! To: huangchenxiaomin(a)gmail.com THE NVIDIA GRAD FELLOWSHIP IS OPEN! WE ARE NOW ACCEPTING APPLICATIONS FOR THE 2017-2018 ACADEMIC YEAR! We just launched our 16th Annual Graduate Fellowship Program, which advances the frontiers of science by awarding grants and providing technical support to graduate students who are doing outstanding GPU-based research. This year we're especially seeking doctoral students pushing the envelope in artificial intelligence, deep neural networks, autonomous vehicles, and related fields. Our Graduate Fellowship awards are now up to $50,000 per student. These grants will be awarded in the 2017-2018 academic year. Since its inception in 2002, the NVIDIA Graduate Fellowship Program has awarded over 130 Ph.D. graduate students with grants that have helped accelerate their research efforts. More importantly, this funding has helped some students achieve major breakthroughs in their research - breakthroughs that may not have been possible without additional funding. The NVIDIA Graduate Fellowship Program is open to applicants worldwide. The deadline for submitting applications is Jan. 16, 2017. Eligible graduate students will have already completed their first year of Ph.D. level studies in the areas of computer science, computer engineering, system architecture, electrical engineering or a related area. In addition, applicants must also be engaged in active research as part of their thesis work. Please share with your departments, students and friends. For more information on eligibility and how to apply, visit http://research.nvidia.com/relevant/graduate-fellowship-program <http://go.nvidianews.com/Bz00cO0NM000A54F0nD644E> or email fellowship(a)nvidia.com <http://go.nvidianews.com/SF0N0E0n65A0MO40z0044dE>. Manage My Preferences <http://go.nvidianews.com/eM0nFN00050FO404Aze640E> | Unsubscribe <http://info.nvidia.com/UnsubscribePage.html?mkt_unsubscribe=1&mkt_tok=eyJpI…> Copyright © 2016 NVIDIA Corporation. All rights reserved. NVIDIA Corporation, 2701 San Tomas Expressway, Santa Clara, CA 95050.

7 years, 5 months

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aspuru-list November 2016