aspuru-list July 2017

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14 participants
33 discussions

[Aspuru-Guzik Group List] Joey's defense today

by Alan Aspuru-Guzik

Dear all, Please remember that today is Joey's defense at 3.00 PM in the Division Room. Please come to it and the toast after it. Alan -- Alán Aspuru-Guzik | Professor of Chemistry and Chemical Biology Harvard University | 12 Oxford Street, Room M138 | Cambridge, MA 02138 (617)-384-8188 | http://aspuru.chem.harvard.edu | http://about.me/aspuru

6 years, 9 months

[Aspuru-Guzik Group List] [Important] Today's Group Meeting Moved to Pfizer Lecture Hall and 2:30 PM

by Siria Serrano

Dear Group, Please note that today's Group Meeting has been moved to *2:30 PM* and will be taking place at *Pfizer Lecture Hall*. Best, Siria -- *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>*

6 years, 9 months

[Aspuru-Guzik Group List] Group meeting, Thu July 13, 3:30 PM, Div Room

by Ian Kivlichan

Hi all, Yudong will talk at group meeting tomorrow after last week's interruption. See below for his title and abstract. All the best, Ian ----------------- Title: Quantum neurons Abstract: Deep learning has gained a significant level of interest in recent years for various machine learning applications due to the versatility of neural networks for capturing non-linear features in data sets. In the meantime, quantum computing also has seen progress in a variety of areas such as simulation and numerical analysis. Therefore, an almost two decades long line of inquiry has been developed for answering the question "does there exist a natural model of quantum neural networks that captures the essential features of classical neural networks?". I will explain what "natural" and "essential features" mean exactly, and then I will present a new model of "quantum neuron" that upon preliminary examinations meets those requirements.

6 years, 9 months

[Aspuru-Guzik Group List] Fwd: Wellesley Physics open rank tenure track search

by Alan Aspuru-Guzik

---------- Forwarded message --------- From: Robbie Berg <rberg(a)wellesley.edu> Date: Wed, Jul 12, 2017 at 4:35 PM Subject: Wellesley Physics open rank tenure track search To: Bell, David C. <dcb(a)seas.harvard.edu>, Pablo Jarillo-Herrero < pjarillo(a)mit.edu>, Hoffman, Jenny <jhoffman(a)physics.harvard.edu>, Eric Heller <heller(a)physics.harvard.edu>, Christianson, Rebecca J. < rebecca.christianson(a)olin.edu>, Kaxiras, Efthimios < kaxiras(a)physics.harvard.edu>, Lavine, JoDe <jmlavine(a)bhcc.mass.edu>, Sinex, Scott <ssinex(a)pgcc.edu>, Berg, Robbie <rberg(a)wellesley.edu>, Liang Fu < liangfu(a)mit.edu>, Alan Aspuru-Guzik <alan(a)aspuru.com>, Aidala, Katherine E. <kaidala(a)mtholyoke.edu>, James Griffin <jagriffin(a)howard.edu>, Hu, Evelyn < ehu(a)seas.harvard.edu>, Silvina Gatica <SGatica(a)howard.edu>, Philip Kim < pkim(a)physics.harvard.edu>, Halperin, Bertrand I. < halperin(a)physics.harvard.edu>, Thate, Karine <kthate(a)mos.org>, Leonid Levitov <levitov(a)mit.edu>, Habbal, Fawwaz <habbalf(a)seas.harvard.edu>, Alice Ly <aly(a)harvard.edu>, Thomas Searles <thomas.searles(a)howard.edu>, Ashoori, Raymond <ashoori(a)mit.edu>, Loncar, Marko <loncar(a)seas.harvard.edu>, Jagdeesh Moodera <moodera(a)mit.edu>, Gary Harris <gharris1124(a)gmail.com>, Wick Sloane <WickSloane(a)bhcc.mass.edu>, Tito Huber <thuber(a)howard.edu>, Datar, Srikant M. <sdatar(a)hbs.edu>, Joseph Checkelsky <checkelsky(a)mit.edu>, Nuh Gedik <gedik(a)mit.edu>, Brave, Naomi <brave(a)seas.harvard.edu>, Westervelt, Robert M. <westervelt(a)seas.harvard.edu>, Joshua Bridger < bridgerj(a)doversherborn.org>, Sabila, Paul <paul.sabila(a)gallaudet.edu>, Tomas Palacios <tpalacios(a)mit.edu>, Ham, Donhee <donhee(a)seas.harvard.edu>, Hollar, Kathryn Ann <hollar(a)seas.harvard.edu>, Scott Johnson < sdjohnson(a)pgcc.edu>, Jing Kong <jingkong(a)mit.edu>, Alpert, Carol Lynn < calpert(a)mos.org>, CIQM Evaluation <ciqm.evaluation(a)gmail.com>, Richardson, Steven <srichards22(a)comcast.net>, Yacoby, Amir <yacoby(a)physics.harvard.edu>, Brower-Thomas, Tina Louise <tina.browerthomas(a)howard.edu>, Litwhiler, Megan <mlitwhiler(a)mos.org>, cc: Lefebvre, Sarah <sarahl(a)seas.harvard.edu>, Laura Von Bosau <vonbosau(a)mit.edu>, Masse, Kathleen L. <kathmasse(a)seas.harvard.edu>, Lesley Keaney <lkeaney(a)mit.edu>, Torres, Roel Rosalio < rtorres(a)chemistry.harvard.edu>, Zatsiorsky, Stacia < szatsiorsky(a)seas.harvard.edu>, aspuru.staff <aspuru.staff(a)gmail.com>, Cummings, Marlon G <marloncummings(a)chemistry.harvard.edu>, Diane Butler < butlerdd(a)pgcc.edu>, Barbara Drauschke <drauschk(a)physics.harvard.edu>, Monica Wolf <mwolf(a)mit.edu>, Duffy, Caryn <cduffy(a)fas.harvard.edu>, Paul Coveney <paul.coveney(a)olin.edu>, Gilbert Cordova <gcordova(a)mit.edu>, Sarah Byrne <sbyrne(a)mtholyoke.edu>, Adam Ackerman <ackerman(a)physics.harvard.edu>, Melanie Chamberlain <mchamber(a)wellesley.edu>, Nefertiti Patrick Jackson < nefertiti.p.jackson(a)howard.edu>, Jennifer Bastin <bastin(a)physics.harvard.edu>, Stearns, Claudia <cstearns(a)seas.harvard.edu>, Donohoe, Michael A < donohoe(a)seas.harvard.edu>, Linda Jones <Lgjones(a)howard.edu>, Joseph Baylon < jbaylon(a)mit.edu>, Javier Sanchez-Yamagishi <jdsy(a)mit.edu>, Eichler, Linn < eichler(a)seas.harvard.edu>, Heidi Kendig <hkendig(a)mit.edu>, Belcher, Hannah < hbelcher(a)fas.harvard.edu>, Bodden, Julie G <boddenj(a)seas.harvard.edu> SaneAttachments has copied these files to *Dropbox* [image: SaneBox] Wellesley_Physics_Tenure_Track_Position.pdf <https://www.dropbox.com/s/k8bxyo3lp5vxxbx/Wellesley_Physics_Tenure_Track_Po…> Dropbox/SaneBox/Robbie Berg/Wellesley Physics open rank tenure track _, 2017-07-12 04.35.38 PM/ Dear CIQM colleagues, Attached is an ad for an open rank tenure track position in the Wellesley Physics Department that we're going to post shortly. It's a wonderful opportunity for the right person. I would be grateful if you would pass it along to anyone who you think might be a good fit. Thanks! Best, Robbie -- Robbie Berg Professor of Physics Wellesley College -- Alán Aspuru-Guzik | Professor of Chemistry and Chemical Biology Harvard University | 12 Oxford Street, Room M138 | Cambridge, MA 02138 (617)-384-8188 | http://aspuru.chem.harvard.edu | http://about.me/aspuru

6 years, 9 months

[Aspuru-Guzik Group List] Fwd: POSITION IN QUANTUM CHEMISTRY AT KU LEUVEN

by Alan Aspuru-Guzik

---------- Forwarded message --------- From: Kristine Pierloot <kristin.pierloot(a)kuleuven.be> Date: Wed, Jul 12, 2017 at 9:36 AM Subject: POSITION IN QUANTUM CHEMISTRY AT KU LEUVEN To: <alan(a)aspuru.com> Attached please find a vacancy notice for a fulltime academic position in quantum chemistry at the Department of Chemistry of the University of Leuven, Belgium. In case you know suitable candidates, we would appreciate it if you would forward this message to them or send us their name and email address. If you would be interested in this position, we welcome your reaction. The deadline for (pre)application is September 29, 2017. The position will start in the academic year 2018-2019. The online announcement of this position can be found at: http://icts.kuleuven.be/apps/jobsite/vacatures/54172318?lang=en Please note that this is a BOFZAP position. These positions are primarily research-oriented, but the applicants must be prepared to undertake limited teaching assignments according to the BOF-decree. Candidates must be willing to take additional teaching duties after the 10-year period. For more information on BOFZAP and the application procedure, see: https://www.kuleuven.be/onderzoek/gedocumenteerd/index_en.html#details/6d3e… Candidates are encouraged to have made contact with the department to notify them of the intention to apply, and as part of this, are required to nominate one person in the department as potential contact person - someone who can be expected to have some knowledge of the area in which they are working. This person is given the name “Principal Investigator” (PI) in the call documentation. This name could be a bit misleading - the appointed candidate will be a completely independent professor in research terms. We suggest that candidates name Jeremy Harvey, as current Head of Division of Quantum Chemistry, as PI, and that they at minimum send him an email letting him know they are applying. There is no real need to discuss the application in detail, though you are free to ask questions. Yours sincerely, Jeremy Harvey Kristine Pierloot -- Alán Aspuru-Guzik | Professor of Chemistry and Chemical Biology Harvard University | 12 Oxford Street, Room M138 | Cambridge, MA 02138 (617)-384-8188 | http://aspuru.chem.harvard.edu | http://about.me/aspuru

6 years, 9 months

[Aspuru-Guzik Group List] ITAMP lunch seminar - Rick Mukherjee, Rice University (Thursday 07/13, 12pm)

by Hannes Pichler

ITAMP Lunch Seminar Speaker: Rick Mukherjee, (Rice University) Date: Thursday, July 13th Time: 12:00-1:00 pm Includes Pizza. Title: Accessing Rydberg-dressed interactions using many-body Ramsey dynamics Abstract: We demonstrate that Ramsey spectroscopy can be used to observe Rydberg-dressed interactions in a many-body system. Our scheme operates comfortably within experimentally measured lifetimes, and accesses a regime where quantum superpositions are crucial. We build a spin-1/2 from one level that is Rydberg-dressed and another that is not. These levels may be hyperfine or long-lived electronic states. An Ising spin model governs the Ramsey dynamics, for which we derive an exact solution. Due to the structure of Rydberg interactions, the dynamics differs significantly from that in other spin systems. As one example, spin echo can increase the rate at which coherence decays. Location: B-106 @ Center for Astrophysics (60 Garden Street) Directions: After entering the lobby of the CfA, turn right to enter the hallway of the B building. In the hallway, turn right again, B-106 will be at the end of the hallway on the left side.

6 years, 9 months

[Aspuru-Guzik Group List] Fwd: FW: group leader position available

by Alan Aspuru-Guzik

Alán Aspuru-Guzik | Professor of Chemistry and Chemical Biology Harvard University | 12 Oxford Street, Room M138 | Cambridge, MA 02138 (617)-384-8188 | http://aspuru.chem.harvard.edu | http://about.me/aspuru ---------- Forwarded message ---------- From: Catherine M Bourgeois <cmbourg(a)mit.edu> Date: Tue, Jul 11, 2017 at 2:52 PM Subject: FW: group leader position available To: excitonics-sp <excitonics-sp(a)mit.edu> Cc: efrc-faculty <efrc-faculty(a)mit.edu> Hi all, for those that may be interested. – best, Cathy *From:* William A Tisdale *Sent:* Tuesday, July 11, 2017 1:32 PM *To:* Catherine M Bourgeois <cmbourg(a)mit.edu> *Subject:* FW: group leader position available Hi Cathy, This is likely of interest to students and postdocs within the EFRC. Best, Will *From:* Erik Garnett [mailto:erik.garnett@gmail.com <erik.garnett(a)gmail.com>] *Sent:* Tuesday, July 11, 2017 8:49 AM *To:* William A Tisdale *Subject:* group leader position available Hi Will, Hope all is going well. There is currently a program aimed at recruiting top women for group leader (tenure-track with a fixed slot available for tenure) positions in the Netherlands. AMOLF is participating in the program and is interested in top candidates with a broad variety of skills/background: nanophotonics, (ultrafast)spectroscopy, materials characterization, solar cells, biophysics, first principle calculations, mechanics, nanoscience. AMOLF will offer a much better startup package than what is listed on the WISE website below, comparable to any other group leader hire (total value in the range of 1 million, depending on research area and needs). Please forward to any interested candidates. Thanks! https://www.nwo.nl/en/research-and-results/programmes/women+in+science+excel Erik Erik Garnett Group Leader Nanoscale Solar Cells AMOLF Science Park 104, 1098XG Amsterdam, Netherlands +31 (0)20 754 7231 <+31%2020%20754%207231>

6 years, 9 months

[Aspuru-Guzik Group List] Lunch and seminar (Prof. Rubio)

by Gelbwaser, David

Hi everyone, On Monday at 3:00 pm on the division room, Prof. Angel Rubio, Director of the Max Planck for Structure and Dynamics of Matter will give a seminar (see the abstract below). Also there are still some free spots for having lunch with him on Tuesday. Please let me know if you wanna join Best David QED-Chemistry and Materials: A new theoretical framework for the first principles modelling of Light-Matter interactions, from weak to strong coupling Angel Rubio Max Planck Institute for the Structure and Dynamics of Matter, Hamburg, Germany Email: angel.rubio(a)mpsd.mpg.de<mailto:angel.rubio@mpsd.mpg.de> Computer simulations that predict the light-induced change in the physical and chemical properties of complex systems, molecules, nanostructures and solids usually ignore the quantum nature of light. Recent experiments at the interface between materials science and quantum optics have uncovered situations where both the molecular system and the photon field have to be treated in detail. In this talk, we show how theoretical approaches have to be adapted to treat such coupled matter–photon problems and which effects can be anticipated. We demonstrate how the effects of treating quantum-photons can be properly included in such calculations. Our newly developed quantum electrodynamics density-functional formalism (QED-TDDFT) provides this theoretical framework. The basic idea is to treat the full QED system of particles and photons as a quantum fluid. Here the particles are represented by a charge current, and the photons by a classical electromagnetic field that acts on the current in a very complex manner. We will provide an overview of how well-established concepts in the fields of quantum chemistry and material sciences have to be adapted when the quantum nature of light becomes important in correlated matter-photon problems. We analyse model systems in optical cavities, where the matter-photon interaction is considered from the weak- to the strong coupling limit and for individual photon modes as well as for the multi-mode case. We identify fundamental changes in Born-Oppenheimer surfaces, spectroscopic quantities, conical intersections and efficiency for quantum control. We apply the new quantum-electrodynamical density-functional theory to single-photon emission and show how a straightforward approximation accurately describes the correlated electron-photon dynamics. We will also address how periodic driving of many-body systems offers a platform to design Floquet states of matter with tunable electronic properties on ultrafast time scales. Based on the previous QED-TDDFT theoretical framework, we will introduce Floquet time-dependent density functional theory (Floquet-TDDFT) as a general and robust first principles method for predictive Floquet engineering of topological states of matter. Using this scheme we show how femtosecond laser pulses with circularly polarised light can be used to switch between Weyl semimetal, Dirac semimetal, and topological insulator states in a prototypical 3D Dirac material, Na3Bi. Our findings are general and apply to any 3D Dirac semimetal. Furthermore, we show that the concepts of Floquet analysis can be applied to monitor electron photon and electron-phonon dressing in 2D materials . This coupling leads to phonon- or photon-dressed quasi-particles (polarons or polaritons) imprinting specific signatures in the spectrum of the electronic structure that can be detected by time dependent ARPES as sidebands to the equilibrium band structure. Most strikingly, we find that the non-equilibrium electronic structure created by coherent dynamical dressing is the same for photon and phonon perturbations. We demonstrate that if time-reversal symmetry is broken by the coherent lattice perturbations a topological phase transition can be induced. The extension to spin-resolved ARPES can be used to predict asymmetric dichroic response linked to the valley selective optical excitations in monolayer transition metal dichalcogenides (TMDs). This work establishes that the recently demonstrated concept of light-induced non-equilibrium Floquet phases can also be applied when using coherent phonon modes for the dynamical control of material properties. The present results are generic for bosonic time-dependent perturbations, therefore we envision similar phenomena to be observed for example for plasmon, magnon or exciton driven materials. The new QED-TDDFT framework introduced here paves the road to describe matter-photon interactions from first-principles and deal with emergent properties of matte, opening the possibility to predict and control the change of material properties, selectively trigger physicochemical processes, alter chemical reactions, and create new state of matter due to the interaction with light from first principles. References: H. Hübener, U. de Giovannini, A. Rubio, Phonon driven Floquet matter,, (2017); H. Hübener, M. A. Sentef, U. de Giovannini, A.F. Kemper, A. Rubio, Creating stable Floquet-Weyl semimetals by laser-driving of 3D Dirac materials, Nature Communications 7, 13940 (2017) N. Tancogne-Dejean, O. D. Mucke, F. X. Kartner , A. Rubio, Impact of the electronic band structure in high-harmonic generation spectra of solids, Physical Review Letters 118, 087403 (2017) U. De Giovannini, H. Hübener, A. Rubio, Monitoring electron-photion dressing in WSe2, NanoLetters {\bf 16} 7993–7998 (2016) Atoms and Molecules in Cavities: From Weak to Strong Coupling in QED Chemistry, J. Flick, M. Ruggenthaler, H. Appel, A. Rubio, Proceedings of The National Academy of Sciences of The United States of America 114, 3026–3034 (2017) Kohn-Sham Approach to Quantum Electrodynamical Density Functional Theory: Exact Time-Dependent Effective Potentials in Real Space J. Flick, M. Ruggenthaler, H. Appel, A. Rubio Proceedings of The National Academy of Sciences of The United States of America 112 15285-15290 (2015) _____________________________________________ Aspuru-List mailing list Aspuru-List(a)lists.fas.harvard.edu<mailto:Aspuru-List@lists.fas.harvard.edu> https://lists.fas.harvard.edu/mailman/listinfo/aspuru-list -- 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<tel:%28617%29%20496-1716> F: 617-496-9411<tel:617-496-9411>

6 years, 10 months

[Aspuru-Guzik Group List] Siria Away on Wednesday, July 12th

by Siria Serrano

Everyone, I will be away this *Wednesday, July 12th* but in the office every other day this week. Cheers, Siria -- *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>*

6 years, 10 months

[Aspuru-Guzik Group List] Visit of Jonny Proppe on July 11th

by Florian Hase

Hi everyone, Jonny Proppe will visit our group next week on Tuesday, July 11th. Jonny is a PhD student in the group of Markus Reiher at ETH Zurich. (http://www.reiher.ethz.ch/the-group/people/person-detail.html?persid=210018) His research focuses on Systems Chemistry and Statistical Learning for predicting physiochemical properties. He is particularly interested in Machine Learning and Excitonics. I'm in the process of assembling his schedule, so please let me know if you are interested in meeting with him and/or joining us for lunch. Thanks Flo

6 years, 10 months

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aspuru-list July 2017