Dear colleagues,
If you encountered an Apache Test Server page when testing the CEP website this is because the site is currently only accessible to those with a Harvard IP address that starts with a 10. If you get a chance to connect to the research computing VPN and try it again, I would greatly appreciate additional feedback.
Best wishes,
-Martin
Hello Quanta
I am going to Israel tomorrow night and I am way behind in everything I need to do including writing my talk so I will not come to MIT on Friday. Please go ahead and meet without me at 11:00 if you like.
Best,
Eddie
:::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
Edward Farhi
Cecil and Ida Green Professor of Physics
Director
Center for Theoretical Physics
6-300
Massachusetts Institute of Technology
Cambridge MA 02139
617 253 4871
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Dear colleagues,
Please take a few minutes to visit http://cleanenergy.molecularspace.org/ and take a screen shot of the front page and send it back to me. We are interested to know how the site looks with the different resolutions that you all use on your computers regularly. Please also take a few minutes to explore the various links and let us know if there are any pages that have display issues. We know that there are some content issues still!
Best wishes,
-Martin
*number 1 !!!!!!!!!!*
[image: Inline image 1]
Thanks to all of you for voting, if you are curious about the vote
distribution, here it is:
1 - 10
2 - 9
3 - 3
4 - 1
5 - 2
6 - 3
Stephanie
Hey Everyone,
There's a fair being run by Harvard's main equipment supplier today in the
courtyard between fairchild and Naito. It runs from 10-3 and there's some
pen/paper/chemistry schwag which is pretty cool. I personally walked away
with a post-it-note book, a sharpie, a nice pen and a nice periodic table
card. If you were more wililng to talk to people, there are booths with
t-shirts.
The poster said there would be pizza but Semion and I just scoped it out
and there's no pizza yet, but perhaps around noon time there will be some.
-Joey
Hi Everyone,
Dr. Humberto Laguna will be giving group meeting this week at 2:00pm
on Thursday in the Division Room (our new time for the summer). His
talk details are included below.
Title:
Statistical correlations, localization and interactions in model quantum systems
Abstract:
Correlation is a key factor in understanding a variety of chemical and
physical phenomena. There are three clear sources of statistical correlations
in quantum systems: (1) that which arises from the indistinguishability
restriction on the wave function; (2) that which originates from the
interaction between particles through a potential; (3) and that which is due
to the uncertainty principle as a result of the noncommutativity of operators.
These statistical correlations manifest themselves through the nonseparability
of the distribution functions describing the systems. In the first two cases
(indistinguishability and interaction), the problem can be addressed, in
position space (correlation between $x_{1}$ and $x_{2}$) or in momentum space
(correlation between $p_{1}$ and $p_{2}$), by analyzing the nonseparability of
the pair density distributions of the system. The differences between the
relative strength of correlation in the two different spaces are discussed and
related to the symmetry of the wave function and the strength of the
interparticle potential. In the case of position-momentum correlation (which
also occurs in one-particle systems), the problem must be formulated in terms
of the Wigner function, a quantum phase-space representation of the system.
Proposals to distinguish between the different kinds of statistical
correlations are of fundamental importance to determine their effects on the
behavior of a system. Additionally, there is the question of how one kind of
correlation is related to another, e.g. how the position-momentum correlation
is affected by the presence of an interparticle potential.
Analyses of statistical correlation are made with the measures provided by
Information Theory, i.e. mutual information, which is defined in terms of the
Shannon entropies of the corresponding one- and two-particle densities.
Also are discussed the delocalization phenomena in the distributions from
analysis of their Shannon entropies.
The problem is addressed in one-particle and two-particle models.
--
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
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Dear all,
Please vote for your favorite logo for the molecular space website (the
group's umbrella website) by tonight!
Logos are shown on this page:
https://aspuru.wikidot.com/logo-molecular-space
Submit your vote by responding to Alan and me!
Thanks
Stephanie
Hi group,
Next tuesday from 3 - 4pm in the Division room, we'll be having a special
seminar from Dr. Erick de la Barrera. See title and abstract below.
THERE WILL BE TEQUILA!
Title: "Will Tequila Fail with climate change?"
Abstract: The declaration of the "designation of origin" triggered the
successful expansion of thetequila industry and its model is being
replicated for other traditional alcoholic beverages and foods in Mexico.
However, what once was an economic measure to protect artisanal
livelihoods has become an extremely profitable business, currently driven
by multinational corporations. A climatological analysis of
the tequila region suggests that neither ecological or agronomic criteria
were considered for establishing the designated territory.
Moreover, climate change models estimate scenarios where the productivity
of *Agave tequilana*, the plant from which tequila is distilled, may
decrease 15 to 36% by mid-century and up to 60% by 2090. While
the tequila industry has the lobbying resources to change the region
protected by the designation of origin and to plan the establishment of
plantations anticipating climatological changes at suitable
sites, climate change may pose a severe threat for region-specific
artisanal agro-industries.
--
Dr. Erick de la Barrera
-----
"Antonio Madero" Visiting Scholar
David Rockefeller Center for Latin American Studies
and
Department of Organismic and Evolutionary Biology
Harvard University
http://scholar.harvard.edu/delabarrera
Investigador Titular
Centro de Investigaciones en Ecosistemas
Universidad Nacional Autónoma de México
http://leaf.ecolibrios.com/