aspuru-list September 2014

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28 participants
73 discussions

[Aspuru-Guzik group list] [qip] Special Seminar Wednesday - Renato Renner

by Shelby Kimmel

Hi Everyone, This week we have a special quantum information seminar given by Renato Renner. He will be speaking Wednesday April 2 at 4:30 (note time change from standard seminar!) in room 6C-442. Title and and abstract are below. Hope to see you there. Best, Shelby Title: Reliable Quantum State Tomography Abstract: Quantum state tomography is the task of estimating the state of a quantum system using measurements. Typically, one is interested in the (unknown) state generated during an experiment which can be repeated arbitrarily often in principle. However, the number of actual runs of the experiment, from which data is collected, is always finite (and often small). As pointed out recently, this may lead to unjustified (or even wrong) claims when employing standard statistical tools without care. In this talk, I will present a method for obtaining reliable estimates from finite tomographic data. Specifically, the method allows the derivation of confidence regions, i.e., subsets of the state space in which the unknown state is contained with probability almost one. This is joint work with Matthias Christandl, see also arXiv:1108.5329. -- Shelby Kimmel PhD Candidate in Physics Massachusetts Institute of Technology www.mit.edu/~skimmel _______________________________________________ qip mailing list qip(a)mit.edu http://mailman.mit.edu/mailman/listinfo/qip

9 years, 6 months

[Aspuru-Guzik group list] Fwd: Visit by Cliff Kubiak

by Cynthia M. Chew

Hi Group, Prof. Cliff Kubiak (http://kubiak.ucsd.edu/) will be visiting Harvard on Mon Oct. 6. If anyone is interested in meeting with him, please contact Helen schwickrath(a)chemistry.harvard.edu. Thanks, Cynthia 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/ On Mon, Sep 29, 2014 at 11:05 AM, Schwickrath, Helen < schwickrath(a)chemistry.harvard.edu> wrote: > Dear Alàn, > > > > Next Monday, Cliff Kubiak will be with us (6 October). His 4:15 p.m. > seminar will be *Solar fuels: Selective reduction of carbon dioxide when > protons are everywhere.* Would you be interested in meeting with him? > If not, are there members of your research group that might benefit from a > meeting with him? > > > > Many thanks! > > Helen > > > > > > Helen L. Schwickrath > > Seminar & Events Coordinator > > Harvard University > > Department of Chemistry & Chemical Biology > > 12 Oxford St. > > Cambridge, MA 02138 > > Phone (617) 496-8190 > > Fax (617) 496-5618 > > http://www.chemistry.harvard.edu > > >

9 years, 6 months

[Aspuru-Guzik group list] [IACS-events] IACS Seminar with Nima Dehghani Friday, 10/3---- LOCATION: Maxwell Dworking G115

by Baker, Natasha

Date: Friday, October 3, 2014 Location: Maxwell Dworkin G115, 33 Oxford Street, Cambridge MA 02138 Speaker: Nima Dehghani, Wyss Institute Time: Informal lunch with speaker, 12:30pm. Talk, 1:00pm Title: Computational network dynamics of the neocortex gCal<https://www.google.com/calendar/render?cid=http://www.seas.harvard.edu/cale…> <https://www.google.com/calendar/render?cid=http://www.seas.harvard.edu/cale…> iCal<http://webcal://www.seas.harvard.edu/calendar/event/77956/feed.ics> Abstract: Network activity is a key aspect of neocortical computation. Whether the system portrays spatiotemporal assemblies, acts in a balanced regime, or if it follows a self-organized critical regime, are all among the fundamental organizing principles of neocortical computation. This talk will overview our recent findings from high-density ensemble recordings from the neocortex of humans and higher mammals such as monkey and cat. I will portray a detailed morpho-functional characterization of neuronal activity, functional connectivity at the microcircuit level, and the interplay of excitation and inhibition in the human neocortex. The discussion will extend to the examination of self-organized criticality in neural avalanche dynamics in different in vivo preparations during wakefulness, slow-wave sleep, and REM sleep, from cat to monkey and man. I will then show that the large ensemble of units show a remarkable excitatory and inhibitory balance, at multiple temporal scales, and for all brain states, except seizures, showing that balanced excitation-inhibition is a fundamental feature of normal brain activity. Speaker bio: Nima Dehghani received a Ph.D. in Computational Neuroscience from France, and an M.D. from Iran. After his medical training, as a research fellow at the Harvard/MIT Martinos center and then at the UCSD Multimodal Imaging Lab & MGH Cortical Neurophysiology Lab, he worked on multimodal investigation and electromagnetic source localization of sleep rhythms and thalamocortical oscillations. His work at Unite de Neurosciences, Information et Complexite (UNIC) of Centre National de la Recherche Scientifique (CNRS), was on spectral dynamics of MEG/EEG, assessment of self-organized criticality in invasive ensemble recordings, and analyzing network properties of excitation/inhibition in micro-circuitry of the cerebral cortex. At the Wyss, Nima is planning to use multimodal techniques in conjunction with the theoretical implications of bioelectromagnetism, multiscale interaction, and complex systems to characterize the dynamic patterns of neuro-signals obtained from miniaturized high-throughput microdevices and large-scale recordings. He aims to predict the behavior of such signals with higher accuracy and further enhance their usability for clinical purposes. *********************** UPCOMING SEMINARS 10/10 D.E. Shaw Research 10/17 Ashish Mahabal (Caltech) 10/31 Chris Miller (Brandeis & HHMI) 11/14 Bill Henshaw (Rensselaer Polytechnic Institute) 11/21 Brian Hayes (IACS Associate) 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, 6 months

[Aspuru-Guzik group list] [qip] Fwd: quantum optimization workshop at Fields Institute (Toronto), Oct. 27-29

by Scott Aaronson

---------- Forwarded message ---------- From: Michele Mosca <michele.mosca(a)uwaterloo.ca> Date: Sat, Sep 27, 2014 at 10:51 PM Subject: quantum optimization workshop at Fields Institute (Toronto), Oct. 27-29 To: Scott Aaronson <aaronson(a)csail.mit.edu> Cc: Rolando Somma <somma(a)lanl.gov> Hello Scott, We’d like to bring the following workshop to your attention. http://www.fields.utoronto.ca/programs/scientific/14-15/quantumopt/ Please pass this on to anyone you think might be interested. Best, Mike Quantum Optimization Workshop October 27-29, 2014 Fields Institute, 222 College St. Toronto Organizing Committee: Thomas F. Coleman, Ilias S. Kotsireas, Michele Mosca, Panos M. Pardalos, Rolando Somma Quantum-inspired technologies have begun to emerge in various areas of Science and Engineering. In the realm of quantum computing, researchers develop algorithms that carry the potential to solve extremely hard computational problems, which are currently intractable by conventional algorithms. Some of the quantum algorithmic tools that have developed in recent years are known to speed-up the solution of well known extremely difficult combinatorial problems. The fundamental goal of our proposed workshop will be to provide a forum for both scientific presentations and discussion of issues related to what we call quantum optimization. Optimizations researchers will learn about the quantum technology and methodologies and the quantum researchers will learn about hard optimization problems that may yield to quantum optimization approaches Confirmed Plenary Speakers: Sergio Boixo, Google Inc Richard Cleve, IQC, University of Waterloo Andy Conn, IBM Research Robin Kothari, MIT Ashwin Nayak, IQC, University of Waterloo William Pulleyblank, Department of Mathematical Sciences, United States Military Academy Panos M. Pardalos, Center for Applied Optimization (CAO), University of Florida Mario Szegedy, Computer Science, Rutgers University Krysta M. Svore, Quantum Architectures and Computation Group (QuArC), Microsoft Research _______________________________________________ qip mailing list qip(a)mit.edu http://mailman.mit.edu/mailman/listinfo/qip

9 years, 6 months

[Aspuru-Guzik group list] Fwd: Training Workshop at CFN, Nov 3-7, 2014

by Alan Aspuru-Guzik

Everybody, especially excitonics related people are encouraged to attend! 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: Wu, Qin <qinwu(a)bnl.gov> Date: Fri, Sep 26, 2014 at 9:48 AM Subject: Training Workshop at CFN, Nov 3-7, 2014 To: Alan Aspuru-Guzik <alan(a)aspuru.com>, Suleyman Er < ser(a)chemistry.harvard.edu> Hi Alan and Suleyman, Would you share the following workshop information with those who might be interested? It is intended for a relatively broad audience in the interface/catalysis/energy materials field, including experimental groups who would like to do their own computational work. Unfortunately, there is only one week left before registration deadline. We really appreciate your help with sharing it around. Best regards, Qin We are pleased to announce a special training workshop that may interest the students or other young researchers in your group: Theory and Computation for Interface Science and Catalysis: Fundamentals, Research and Hands on Engagement using VASP Hosted at Brookhaven National Laboratory, November 3-7, 2014 This workshop was developed jointly between the CFN and the Center for Materials by Design at Stony Brook University. The workshop is specifically targeted for students and other researchers who seek to learn fundamentals and practical usage of modern DFT based approaches, especially for application to research in interface science, catalysis and other materials for energy applications. Morning lectures by expert CFN staff, users and invited guests will frame the subject, demonstrate examples of theory and experiment working together in research and introduce the theoretical methods. Afternoons will be devoted to hands-on tutorials, primarily focused on the VASP suite of tools and led by a member of the VASP team, Martijn Marsman from U. Vienna. Every effort has been made to make this workshop affordable for students. For further information and registration, see the attached flyer and click on: http://www.bnl.gov/theorycomp2014/. There is a narrow window for registration: The deadline is Friday, October 3, 2014. Mark S Hybertsen Group Leader, Theory & Computation Group Center for Functional Nanomaterials Brookhaven National Laboratory Tel: 631-344-5996 E-mail: mhyberts(a)bnl.gov

9 years, 6 months

[Aspuru-Guzik group list] [qip] Friday the 26th

by Edward Farhi

Hi Quanta We will meet tomorrow, Friday, at 11:00 in 6-310. Han-Hsuan and Cedric will tell us about what they have been doing. See you there. Eddie *********************************************** Edward Farhi Cecil and Ida Green Professor of Physics Director Center for Theoretical Physics Massachusetts Institute of Technology Building 6 room 300 Cambridge MA 02139 617 253 4871 *********************************************** _______________________________________________ qip mailing list qip(a)mit.edu http://mailman.mit.edu/mailman/listinfo/qip

9 years, 6 months

[Aspuru-Guzik group list] Fwd: Deep Learning CS Colloquium This Thursday: Andrew Ng

by Jarrod McClean

> *From: *"Hastings, Meg" <hastings(a)seas.harvard.edu > <https://urldefense.proofpoint.com/v2/url?u=http-3A__mailto-3Ahastings-40sea…>> > *Subject: **[Iacs-exec] Deep Learning CS Colloquium This Thursday: > Andrew Ng* > *Date: *September 23, 2014 3:17:18 PM EDT > *To: *iacs-exec <iacs-exec(a)seas.harvard.edu > <https://urldefense.proofpoint.com/v2/url?u=http-3A__mailto-3Aiacs-2Dexec-40…>> > > Late addition to the CS Colloquium Calendar that I suspect will be of > interest to IACS folks… This Thursday 9/25 in G115 at 4pm! > >> ----- >> >> Deep Learning: Overview and Trends >> >> Andrew Ng >> >> Deep learning is the leading approach to many problems in computer >> vision, >> speech recognition, NLP, and other areas. In this presentation, I >> will give a >> broad overview of deep learning. I will discuss the key reasons for its >> success, and the important role that scalability plays. I will also >> describe >> unsupervised learning approaches to deep learning--such as the >> "Google cat" >> result, in which a neural network learned to recognize cats by watching >> unlabeled YouTube videos--and discuss why this might become increasingly >> important. Finally, I will discuss recent trends in deep learning, and >> some possible future applications. >> >> >> Bio: >> >> Andrew Ng is Chief Scientist of Baidu; Chairman and Co-founder of >> Coursera; and an Associate Professor of Computer Science at Stanford >> University. >> >> In 2011 he led the development of Stanford University’s main MOOC >> (Massive >> Open Online Courses) platform and also taught an online Machine >> Learning class >> to over 100,000 students, leading to the founding of Coursera. Ng’s >> goal is >> to give everyone access to a great education, for free. Today, Coursera >> partners with top universities to offer online courses. With over 9 >> million >> students, it is the world's largest MOOC platform. >> >> Ng also works on machine learning, with an emphasis on deep learning. >> He had >> founded and led the “Google Brain” project, which developed >> massive-scale deep >> learning algorithms. This resulted in the “cat” result, in which a >> massive >> neural network with 1 billion parameters learned from unlabeled >> YouTube videos >> to detect cats. More recently, he is working to build up Baidu >> Research, which >> is developing applications of large scale deep learning to computer >> vision, >> speech, NLP, and other areas. >> >> Recent awards include being named to the Time 100 list of the most >> influential >> people in the world; Fortune 40 under 40; and being named by students >> as one >> of the top 10 professors across Stanford University. > > _______________________________________________ > Iacs-exec mailing list > Iacs-exec(a)seas.harvard.edu > <https://urldefense.proofpoint.com/v2/url?u=http-3A__mailto-3AIacs-2Dexec-40…> > https://lists.seas.harvard.edu/mailman/listinfo/iacs-exec

9 years, 6 months

[Aspuru-Guzik group list] ITAMP lunch seminar- Archana Kamal (9/26)

by Singh, Swati

Date: Friday, September 26th Time: 12:00-1:30 pm Pizza will be served. 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. Speaker: Dr. Archana Kamal, MIT Title: Nonreciprocal microwave photonics with superconducting quantum circuits Abstract: Superconducting circuits are one of the leading candidates for quantum information processing. The most common modality for fast and efficient signal processing with these circuits rely on parametric devices that offer quantum-limited operation i.e. they add minimum possible noise in accordance with the constraints imposed by quantum mechanics. Most of the parametric devices have symmetric scattering properties (a.k.a. reciprocity) and usually rely on bulky magnetic components to select preferred direction of signal flows. I will introduce multiple schemes that allow us to realize nonreciprocal scattering with superconducting parametric devices, devoid of any magnetic fields. Besides being amenable to on-chip integration, these offer a platform to explore novel symmetry breaking mechanisms and study qualitatively new physics generic to nonlinear frequency mixing systems. -- Dr. Swati Singh Institute for Theoretical Atomic, Molecular, and Optical Physics (ITAMP), Harvard-Smithsonian Center for Astrophysics, 60 Garden Street, MS-14, Cambridge, MA 02138

9 years, 6 months

[Aspuru-Guzik group list] Sample Desk Chairs for New Lab Space

by Marlon Cummings

Dear Friends: Please take a moment to stop by our office between today and Friday to try out the samples. We need to make a decision this week, so do take this opportunity to sit in them and try them out. Thanks, Marlon. --------------- Marlon G. Cummings Lab Manager, Aspuru-Guzik Group Mallinckrodt M112 Department of Chemistry and Chemical Biology Harvard University 12 Oxford Street Cambridge, MA 02138 617-496-9964 617-496-9411 (fax) http://aspuru.chem.harvard.edu/

9 years, 6 months

[Aspuru-Guzik group list] new big office printer

by Joey Goodknight

Hello All, The new printer in the big office is now set up to work as an IP printer at the address: scotch.fas.harvard.edu. For mac, you can just go to the add printer dialog and select IP printer and use the url as an ip address; osx will install the needed software automatically. For linux or windows: I don't have access to a machine to figure out those but if someone does figure it out, please let everyone know. Thanks! -Joey

9 years, 6 months

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aspuru-list September 2014