aspuru-list January 2014

aspuru-list@lists.fas.harvard.edu

21 participants
58 discussions

[Aspuru-Guzik group list] jabba6 storage

by Hachmann, Johannes

Hi everybody, A number of people are storing data on Jabba06c. Since we've run out of space on this machine, I'd like to move all this stuff to a different temporary storage provided by FAS-RC. Everybody who is effected by this, please give me a green light (or move your stuff elsewhere yourself). Cheerio, Johannes ----------------------------------------------------------- Dr. Johannes Hachmann Assistant Professor University at Buffalo The State University of New York Department of Chemical and Biological Engineering NYS Center of Excellence in Materials Informatics 612 Furnas Hall Buffalo, NY 14260 http://www.cbe.buffalo.edu/people/full_time/j_hachmann.php -----------------------------------------------------------

10 years, 3 months

[Aspuru-Guzik group list] HQOC Special Seminar - Today at 2:00 PM in Lyman 425

by Hamilton, Joan

**HQOC Special Seminar** ***Today at 2:00 PM in Lyman 425*** Travis Nicholson, University of Colorado, JILA The Sr Optical Lattice Clocks at JILA - A new record in atomic clock performance The exquisite control exhibited over quantum states of individual particles has revolutionized the field of precision measurement, as exemplified by highly accurate atomic clocks. Optical clocks have been the most accurate frequency standards for the better part of a decade, surpassing even the cesium microwave fountains upon which the SI second is based. Two classes of optical clocks have outperformed cesium: singleion clocks and optical lattice clocks. Historically ion clocks have always been more accurate, and the precision of ion clocks and lattice clocks has been comparable. For years the open question in the field of optical clocks has been whether lattice clocks can overcome various systematic effects and become more accurate than ion clocks. In this presentation I report the first lattice clock that has surpassed ion clocks in both precision and accuracy. These measurements represent a tenfold improvement in precision and a factor of 20 improvement in accuracy over the previous best lattice clock results. With the best reported accuracy and precision, lattice clocks are now a strong candidate as a primary frequency standard. This work paves the way for a better realization of SI units, the development of more sophisticated quantum sensors, and precision tests of the fundamental laws of nature. Refreshments will be served Joan Hamilton Faculty Assistant to Profs. Greiner and Lukin HQOC Laboratory Administrator HUCTW Local Union Representative Harvard University Department of Physics 17 Oxford Street Cambridge, MA 02138 P: (617) 496-2544 F: (617) 496-2545

10 years, 3 months

[Aspuru-Guzik group list] [Aspuru-meetings-list] Fwd: RSVP for 3rd D-Wave Application Colloquium

by Ryan Babbush

Interested in D-Wave? Have funds to fly to Google in LA at two weeks notice? The Quantum AI group at Google is having a "D-Wave Application Colloquium" and anyone associated with our group who is interested is invited. ---------- Forwarded message ---------- From: Hartmut Neven <neven(a)google.com> Date: Thu, Jan 16, 2014 at 12:08 PM Subject: RSVP for 3rd D-Wave Application Colloquium To: Daniel Lidar <lidar(a)usc.edu>, Bob Lucas <rflucas(a)isi.edu>, "Bergman, Larry A (9820)" <Larry.A.Bergman(a)jpl.nasa.gov>, Vadim Smelyanskiy < vadim.n.smelyanskiy(a)nasa.gov>, "Bell, David G. (ARC-TH)[UNIVERSITIES SPACE RESEARCH ASSOCIATION]" <david.g.bell(a)nasa.gov>, Quantum-AI < quantum-ai(a)google.com>, "Colin P. Williams" <cpwilliams(a)dwavesys.com>, " rose(a)dwavesys.com" <rose(a)dwavesys.com>, Mohammad Amin <amin(a)dwavesys.com>, Bill Macready <wgm(a)dwavesys.com>, yoshua.bengio(a)gmail.com, Ryan Babbush < ryanbabbush(a)gmail.com>, Salvatore Mandrà <salvatore.mandra(a)gmail.com> Cc: Julie Wiskirchen <jules(a)google.com> Dear colleagues, Please circulate this RSVP form<https://docs.google.com/forms/d/1h-bBDL9ASKoLdcn7RI0YPED-uOPI9dI2TaSibwOy7F…> within your respective institutions and forward to guests you wanted to invite so that we can gather the information needed to finalize the agenda for the 3rd D-Wave Application Colloquium which will focus on machine learning. The event will take place at Google LA on Friday, January 31. Kind regards Hartmut -- Dr. Hartmut Neven Google Director of Engineering Tel +1 310 717 4104 Email neven(a)google.com -- Ryan Babbush | PhD Student in Physics (949) 331-3943 | babbush(a)fas.harvard.edu Harvard University | Aspuru-Guzik Group 12 Oxford Street | 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

10 years, 3 months

[Aspuru-Guzik group list] Fwd: Cambridge Structural Database- 2014 edition; disks now available in CCB Library

by Alan Aspuru-Guzik

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: Chapin, Marcia <chapin(a)chemistry.harvard.edu> Date: Wed, Jan 15, 2014 at 2:16 PM Subject: Cambridge Structural Database- 2014 edition; disks now available in CCB Library To: "Chapin, Marcia" <chapin(a)chemistry.harvard.edu> Hello Folks, The Cambridge Structural Database v.2014 is now available. Please stop by the Chemistry & Chemical Biology Library to borrow a DVD, which includes the Cambridge Structural Database and software tools: - search and information retrieval (ConQuest) - structure visualization (Mercury) - numerical analysis (Vista) - database creation (PreQuest) Disks are available for *PC* , *MAC OS X*, and *Linux.* *For release and installation notes (and what’s new) use this link*: http://www.ccdc.cam.ac.uk/Lists/DocumentationList/release_install_notes535.… *2014 DVDs contain*: *Windows DVD* • ConQuest 1.16, Mercury 3.3, PreQuest, Mogul 1.6 and IsoStar 2.2.1 PC Client. • All CSD and Mogul data files. *Linux DVD* • ConQuest 1.16, Mercury 3.3, PreQuest, Mogul 1.6, IsoStar 2.2.1 Client for Linux. • IsoStar 2.2.1 data and server software for Linux. • All database files for Linux. *Mac OS X DVD* • ConQuest 1.16, Mercury 3.3, Vista, PreQuest, Mogul 1.6 and IsoStar 2.2.1 Client. • All database files. SuperStar & DASH DVD • A fourth DVD for installing SuperStar and DASH is also available to academic licence holders Installation codes Harvard University: *CCDC site# 683* *CCDC Confirmation Code 7E895E* For further detailed information please use this link: http://www.ccdc.cam.ac.uk/products/csd/ Please contact me chapin(a)chemistry.harvard.edu with questions, etc. Best, Marcia Marcia L. Chapin Librarian Harvard Chemistry & Chemical Biology Library 12 Oxford. St. Cambridge, MA 02138 ***************************************** voice: 617-496-2728 fax : 617-495-0788 chapin(a)chemistry.harvard.edu

10 years, 3 months

[Aspuru-Guzik group list] [Aspuru-meetings-list] group meeting tomorrow: Semion Saikin

by Ryan Babbush

Hi Everyone, Tomorrow Semion will finally be giving his group meeting (this is about the sixth time he's been rescheduled). We will meet at 2:30pm in the Division Room. He will tell us about his recent work in collaboration with Joseph Tang on the response of green sulfur bacteria to light conditions. If he has free time left he will also discuss future research directions. -- Ryan Babbush | PhD Student in Physics (949) 331-3943 | babbush(a)fas.harvard.edu Harvard University | Aspuru-Guzik Group 12 Oxford Street | 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

10 years, 3 months

[Aspuru-Guzik group list] HQOC Special Seminar - Today at 2:00 PM

by Hamilton, Joan

**HQOC Special Seminar** *Lyman 425* Tuesday, January 14, 2014 at 2:00 PM Julian Struck, University of Hamburg Artificial Gauge Fields in Driven Optical Lattices Quantum gases provide a controllable and isolated environment for the investigation of model Hamiltonians, reaching from the weakly-interacting to the strongly-correlated regime. However, as the constituent particles of these gases are typically neutral they do not respond to electromagnetic fields via the Lorentz force. This constitutes a central limitation towards the simulation of various solid state models involving external electromagnetic fields. In recent years the creation of synthetic gauge fields for ultracold neutral atoms has developed to a promising field that allows overcoming this limitation. Recently, we have demonstrated that suitable periodic driving of atoms in an optical lattice can mimic the effects of a tunable gauge potential. In this talk, we report on the experimental realization of a spin model with coupled continuous and discrete degrees of freedom on a periodically driven triangular lattice. As a result of the strong artificial gauge field, the bosonic atoms in the lattice show persistent circular currents in analogy to the cyclotron motion of electrons in magnetic fields. The direction of this mass flow provides the discrete Ising variable. By measuring the magnetization of the systems we observe a thermally driven Ising-type phase transition from an ordered, (anti-)ferromagnetic to an unordered, paramagnetic state. Further, the superfluid ground state with well-defined phases on each lattice site provides continuous XY vector-spin variables. The interplay of these different degrees of freedom naturally raises the question of coupled order parameters and new universality classes of phase transitions. Refreshments will be served Joan Hamilton Faculty Assistant to Profs. Greiner and Lukin HQOC Laboratory Administrator HUCTW Local Union Representative Harvard University Department of Physics 17 Oxford Street Cambridge, MA 02138 P: (617) 496-2544 F: (617) 496-2545

10 years, 3 months

[Aspuru-Guzik group list] ITAMP topical lunch discussion: Friday, January 17 @ 12:00

by Mikhail Lemeshko

Dear Friends, On Friday, January 17, there will be an ITAMP topical lunch discussion. Time: 12:00-1:30 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, and B-106 is there. As always pizza will be served. Speaker: Prof. Bala Sundaram (Chair, Physics Department, U Mass Boston) Title: Persistent Patterns in Fluids and Wave Mechanics Abstract: Persistent patterns in periodically driven dynamics have been reported in a wide variety of contexts ranging from table-top and ocean-scale fluid mixing systems to the weak quantum-classical transition in open Hamiltonian systems. These refer to deviations from homogeneity which is expected under the prevailing conditions. We illustrate a common framework for the emergence of these patterns by considering a simple measure of structure maintenance provided by the average radius of the scalar distribution in transform space. Using this Dirichlet coefficient, scaling laws related to both the formation and persistence of patterns in phase space are presented. Further, within a model system, we directly relate the spectral properties of the one period advection-diffusion operator to the phase-space geometry of the Lagrangian advecting field. Parametric variation allows for the creation of multi-scale mixed phase space structures where stable islands of various sizes and periodicities co-exist with extended regions of non-uniformly hyperbolic chaos. The relative algebraic simplicity of the map and the implementation of an efficient numerical scheme enable direct computation of a number of the most stable spectral modes of the advection-diffusion operator for ultra low diffusion values. Once the diffusive length scale falls below the size of any stable island structure, a spectral branch containing the dominant eigenmode behaves diffusively, exhibiting a strong analogy with a quantum particle in a box. Interspersed with modes localized on the full extent of the elliptical islands are other families of modes governed by local minima of the potential. In contrast to the diffusive, square-well modes, the decay rates of the super-localized, harmonic oscillator modes exhibit distinct scaling. Simple counting arguments, based on these known scaling relations and the purely Lagrangian geometry of the map, allows accurate prediction of the relative importance of the different spectral contributions for any finite value of the diffusivity. In concluding, we briefly discuss the use of conformal transformations to analytically extract all aspects of the spectral scaling. Looking forward to seeing you there, Misha Lemeshko -- Dr. Mikhail Lemeshko Institute for Theoretical Atomic, Molecular, and Optical Physics (ITAMP) Harvard-Smithsonian Center for Astrophysics MS-14 60 Garden St. Cambridge, MA 02138 U.S.A. mlemeshko(a)cfa.harvard.edu http://sites.google.com/site/mishalemeshko/ Tel. +1 (617) 496-7610 Fax +1 (617) 496-7668

10 years, 3 months

[Aspuru-Guzik group list] Fwd: Seeking Daredevil Brainiacs for a new TV show!

by Alan Aspuru-Guzik

Go for IT !! I would love to have an Aspurite nerd on TV ---------- Forwarded message ---------- From: Date: Monday, January 13, 2014 Subject: Seeking Daredevil Brainiacs for a new TV show! To: Hello, I am a casting associate for a production company in Los Angeles, CA and we are looking for Daredevil Brainiacs for a fun new TV show to be aired on a major network. If you could help us get the word out to some of your graduate students that fit the description mentioned below it would be greatly appreciated. Thank you, Michelle Pagano *Michelle Pagano* *Casting Associate - Think Factory Media* O: 310.473.0900 x270 C: 818.450.4813 *CASTING* *Daredevil Brainiacs for a fun TV show!* Do you love science experiments? Do you have a PhD or working towards one? Do you put scientific principles to the test by using yourself as a guinea pig? Are you willing to do anything in the name of science? We are looking for an eccentric, qualified scientist to be on this wacky and fun television series. If so, then we want to hear from you! Please send us your photo, contact info and story to casting(a)tfcasting.com <javascript:_e({}, 'cvml', 'casting(a)tfcasting.com');> today! [image: Daredevil Brainiac Flyer.jpg] -- 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

10 years, 3 months

[Aspuru-Guzik group list] [Aspuru-meetings-list] Joel's practice job talk tomorrow cancelled

by Ryan Babbush

Hi Everyone, As the subject states, Joel has decided to cancel his practice job talk tomorrow (Tuesday). -- Ryan Babbush | PhD Student in Physics (949) 331-3943 | babbush(a)fas.harvard.edu Harvard University | Aspuru-Guzik Group 12 Oxford Street | 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

10 years, 3 months

[Aspuru-Guzik group list] [IACS-events] Computational Science Ventures Symposium Thurs 1/23

by Hastings, Meg

Computational Science Ventures Symposium Thursday, January 23 9am-12 noon; continental breakfast 8:30-9am Harvard School of Engineering and Applied Sciences Maxwell Dworkin G115 33 Oxford Street, Cambridge, MA 02138 EVENT WEBSITE: http://computefest.seas.harvard.edu/computational-science-ventures IACS's annual Computational Science Ventures mini-symposium explores the extraordinary entrepreneurial opportunities on the frontier of computational science. This year's theme is "Applications to Cyber-Physical Systems." Computational Science Ventures is organized by Alexander Wissner-Gross, a scientist, inventor and entrepreneur who is Institute Fellow at IACS. SPEAKERS: • Marija Ilic, Professor, Carnegie Mellon University • Ted Morgan, Founder and CEO, Skyhook • Sokwoo Rhee, Presidential Innovation Fellow & Founder/CTO, Millennial Net., Inc. Hope you can join us! No registration necessary. Kind regards, Meg Hastings Interim Executive Director, Institute for Applied Computational Science Harvard School of Engineering and Applied Sciences 52 Oxford Street, Northwest B165 Cambridge, MA 02138 http://iacs.seas.harvard.edu/ hastings(a)seas.harvard.edu | 617-384-9091 _______________________________________________ Iacs-events mailing list Iacs-events(a)seas.harvard.edu https://lists.seas.harvard.edu/mailman/listinfo/iacs-events

10 years, 3 months

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aspuru-list January 2014