aspuru-list April 2013

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54 participants
81 discussions

[Aspuru-Guzik group list] [qip] today at 2:00

by Edward Farhi

Hi Quanta Our group meeting will be today at 2:00 (not 11:00) in 6-310. Eddie _______________________________________________ qip mailing list qip(a)mit.edu http://mailman.mit.edu/mailman/listinfo/qip

11 years

[Aspuru-Guzik group list] ITAMP early-bird seminar: Monday, April 8 @ 10:00

by Mikhail Lemeshko

* Dear Friends, On Monday, April 8, there will be an ITAMP early-bird seminar. We pioneer this new format to figure out how motivated people can be to wake up for particularly interesting talks. Tea Room (P-226) @ CfA (60 Garden Street) Time: 10:00-11:30 Speaker: Layla Hormozi (National University of Ireland, Maynooth) Title: Fractional Quantum Hall Effect of Lattice Bosons Near Commensurate Flux Abstract: We study interacting bosons on a lattice in a magnetic field. When the number of flux quanta per plaquette is close to a rational fraction, the low energy physics is mapped to a multi-species continuum model: bosons in the lowest Landau level where each boson is given an internal degree of freedom, or pseudospin. We find that the interaction potential between the bosons involves terms that do not conserve pseudospin, corresponding to umklapp processes, which in some cases can also be seen as BCS-type pairing terms. We argue that in experimentally realistic regimes for bosonic atoms in optical lattices with synthetic magnetic fields, these terms are crucial for determining the nature of allowed ground states. In particular, we show numerically that certain paired wavefunctions related to the Moore-Read Pfaffian state are stabilized by these terms, whereas certain other wavefunctions can be destabilized when umklapp processes become strong. Time permitting I also describe some of the properties these paired states and their excitation spectra. 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

11 years

[Aspuru-Guzik group list] Fwd: IQSD 2013 registration open

by Alan Aspuru-Guzik

-- Alan Aspuru-Guzik Associate Professor of Chemistry and Chemical Biology Harvard University http://aspuru.chem.harvard.edu Forwarded message: > From: Mikko Möttönen <mpmotton(a)gmail.com> > To: iqsd(a)aalto.fi > Date: Friday, April 5, 2013, 7:01:05 AM > Subject: IQSD 2013 registration open > > Dear Colleagues, > > We would be grateful if you distributed this announcement to the students that might be interested joining our summer school. We apologize if you receive this announcement multiple times. Thanks and have a great weekend! > > -mikko > > ------------------------------------------------------------------------------------------------------------ > SUMMER SCHOOL: Introduction to Quantum Systems and Devices 2013, June 11-14 > ------------------------------------------------------------------------------------------------------------ > > REGISTRATION DEAD LINE MAY 6TH, 2013!!! > > http://physics.aalto.fi/groups/comp/qcd/iqsd-2013/ > > > “Introduction to Quantum Systems and Devices” is a summer school focusing on the physics and applications of quantum systems that are currently under intensive research. The level of teaching is introductory which means that no prior knowledge of the specific quantum systems is required. Although prior knowledge of basic quantum mechanics is recommended, there will also be a theory introduction. For those more familiar with quantum systems, there will still be plenty of information to absorb from the last lectures of each lecturer when they go into details and latest developments of their specific research topics. > > Topics include: circuit quantum electrodynamics (cQED) and superconducting quantum bits (qubits), electron and heat transport in nanoelectronics, quantum photonics, spins in semiconductors and spin qubits, and Bose-Einstein condensates of ultracold atoms. > > In addition to comprehensive lectures given by internationally leading scientists in their fields, there will be a student poster session, sauna, and plenty of time for discussions outside the lectures. > > > LECTURERS > > Brian P. Anderson Bose-Einstein condensates > Andrea Morello Spins in semiconductors > Teemu Ojanen Introduction to quantum theory > Jukka Pekola Electron and thermal transport in metallic nanodevices > Andreas Wallraff Circuit quantum electrodynamics > Xiao-Qi Zhou Quantum photonics > > > WELCOME! > ------------------------------------------------------------------------------------------------------------ > > > > >

11 years

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

by Ryan Babbush

Hi Everyone, Despite all of the excitement from Alan getting tenure this week let's not forget about group meeting! This Friday, Dr. Semion Saikin will be telling us about the structure and spectra of Chlorosome. We'll be meeting in the Division Room at 3:00pm. -- 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

11 years

[Aspuru-Guzik group list] [qip] scheduling Will Matthews talk

by aram harrow

Dear quanta, As I mentioned earlier, Will Matthews (Cambridge) is visiting next Mon-Wed. Since his visit doesn't overlap with Friday, we will have to pick some non-standard time for his talk. I've listed some options here. If you are potentially interested in attending, then please select the times that could work for you. http://doodle.com/ckwy86w8xidwd6te Let me also mention a few other talks going on next week. Mon, 2-3pm, Uwe-Jens Wiese, "Atomic Quantum Simulation of Abelian and non-Abelian Gauge Theories" http://ctp.lns.mit.edu/seminars/seminars_NP.html Many of us heard this in the Friday group meeting. Mon, 3-5pm, first results from the AMS experiment http://web.mit.edu/lns/news/nuclear.html Finally, the title + abstract for Will's talk are: title: Finite blocklength converse bounds for quantum channels and quantum non-signalling codes abstract: I’ll talk about upper bounds on the rate of transmission of classical and quantum information over quantum channels at finite block length, with and without entanglement assistance, in terms of a unifying framework of quantum hypothesis testing with restricted measurements, and in terms of "quantum non-signalling codes", which I'll define. The bounds generalise a converse of Polyanskiy et al. for classical channels and a quantum channel converse of Renner and Wang. The talk will cover the joint work with Stephanie Wehner (available here arXiv:1210.4722), as well as work (in progress) with Debbie Leung. -aram _______________________________________________ qip mailing list qip(a)mit.edu http://mailman.mit.edu/mailman/listinfo/qip

11 years

[Aspuru-Guzik group list] Lunch: David Reichman - Thursday.

by John Parkhill

Aside from our very happy news, if anyone would like a free catered lunch and discussion with Prof. Reichman, please RSVP to me asap. Best - John

11 years

[Aspuru-Guzik group list] Camera Found

by Marlon Cummings

In my office. ------------------------ 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/

11 years

[Aspuru-Guzik group list] Aidan Daly wants to share "TenurePartyPics" with you

by Dropbox

Aidan (aidancdaly(a)gmail.com) wants to share a folder called "TenurePartyPics" with you. View "TenurePartyPics" https://www.dropbox.com/l/INXD8UAXwKTYKRLW3sX5p8/invite Enjoy! - The Dropbox Team

11 years

[Aspuru-Guzik group list] Aidan Daly wants to share "TenurePartyPics" with you

by Dropbox

Aidan (aidancdaly(a)gmail.com) wants to share a folder called "TenurePartyPics" with you. View "TenurePartyPics" https://www.dropbox.com/l/h1OZw4yuYK5938ixgIEzjc/invite Enjoy! - The Dropbox Team

11 years

[Aspuru-Guzik group list] MARIACHI - It's Time to Celebrate!!!!!!

by Marlon Cummings

Dear friends: Today, we celebrate! Starting at 3:30pm, Alan "Machete" Aspuru-Guzik will lead a Mariachi Band around CCB in celebration. This will be followed by some food and drinks in our social space. Please join us this afternoon. Let's Play. http://www.youtube.com/watch?v=nIlErhpFxuk Best, 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/

11 years, 1 month

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aspuru-list April 2013