aspuru-list June 2014

aspuru-list@lists.fas.harvard.edu

21 participants
45 discussions

by Xavier Andrade

Dear all, This Thursday (Jun 12) at 11 AM in the division room I will make a practice run of the talk I will give at LLNL, I am applying for a postdoc position there. I would appreciate if some of you can come and give me feedback. Thanks, Xavier

9 years, 11 months

[Aspuru-Guzik group list] ITAMP topical lunch discussion: Friday, June 13 @ 12:00

by tony.lee＠cfa.harvard.edu

ITAMP Topical Lunch Discussion Date: FRIDAY, June 13 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*: Minghui Xu (JILA) *Title: *Superradiance and synchronization *Abstract: *Atoms interacting with a bad cavity leads to a collective dissipative coupling between them. By incoherently repumping, the atoms exhibit steady-state superradiance. We identify the phase synchronization of the atoms. As a result, we show that the interrogation time of Ramsey spectroscopy can be increased by many orders of magnitude. We also study the quantum synchronization of two ensembles of superradiant atoms, where a dynamical phase transition is identified.Lastly, I will talk about a new numerical method based on su(4) superoperators enabling an efficient simulation of quantum master equations.

9 years, 11 months

[Aspuru-Guzik group list] Roel Tempelaar Visit, June 13

by Sawaya, Nicolas

Hi Group, Roel Tempelaar (http://www.rug.nl/staff/r.tempelaar/), a member of Jasper Knoester's group at the University of Groninger, will be visiting the group on Friday, June 13th. He'll give a talk at 11am (title and abstract below). Taka and I are setting up his schedule. We're looking for at least four people to fill up meeting slots with him in the afternoon, and for going to lunch right after his talk. I guess we'll say that those with a meeting will have priority for lunch spots. Who's in? Cheers, Nicolas

9 years, 11 months

[Aspuru-Guzik group list] Fwd: [CCB_Staff] Fire Group Fire Alarm Testing in Mallinckrodt

by Cynthia M. Chew

---------- Forwarded message ---------- From: Popillo, Alexa <apopillo(a)fas.harvard.edu> Date: Mon, Jun 9, 2014 at 1:40 PM Subject: [CCB_Staff] Fire Group Fire Alarm Testing in Mallinckrodt To: "Paterno, Michael" <paterno(a)chemistry.harvard.edu>, "Connors, Jerome" < connors(a)chemistry.harvard.edu> Hello all, Tomorrow, June 10th, horns and strobes throughout the Mallinckrodt building will be activated between 7am and 8am to test new fire alarm devices on the 1st floor of Mallinckrodt as part of the Cohen Lab project. Signage will be posted at the building entrances informing occupants of the work. Please contact the Facilities Department with any questions and/or concerns at 5-3076. Best, The Facilities Team _______________________________________________ ccb_staff mailing list ccb_staff(a)lists.fas.harvard.edu https://lists.fas.harvard.edu/mailman/listinfo/ccb_staff

9 years, 11 months

[Aspuru-Guzik group list] unusual day for group meeting this week

by Felipe Herrera Urbina

Dear group, I want to give you a heads up that this week the group meeting will be held on *Wednesday* at 2:30 pm on CDR, not on Thursday as usual. I will send you the title and abstract of the talk in a couple of days. Cheers, Felipe

9 years, 11 months

[Aspuru-Guzik group list] Talk by Dominic Berry at 3:00PM

by Jarrod McClean

Hi All, Just a quick reminder this talk is today in approximately 30 minutes! Time: Friday, June 6, 3:00 PM Place: Cabot Division Room (Mallinckrodt Room 102) Title: *Exponential improvement in precision for simulating sparse Hamiltonians *Abstract: We provide a quantum method for simulating Hamiltonian evolution with complexity polynomial in the logarithm of the inverse error. This is an exponential improvement over existing methods for Hamiltonian simulation. In addition, its scaling with respect to time is close to linear, and its scaling with respect to the time derivative of the Hamiltonian is logarithmic. These scalings improve upon most existing methods. Our method is to use a compressed Lie-Trotter formula, based on recent ideas for efficient discrete-time simulations of continuous-time quantum query algorithms.

9 years, 11 months

[Aspuru-Guzik group list] Fwd: Electrical Shutdown

by Marlon Cummings

---------- Forwarded message ---------- From: Popillo, Alexa <apopillo(a)fas.harvard.edu> Date: Thu, Jun 5, 2014 at 1:34 PM Subject: Electrical Shutdown To: "Dick, Pat" <pat_dick(a)chemistry.harvard.edu>, "Wilks Ball, Lisa" < ball(a)chemistry.harvard.edu>, "Cummings, Marlon" < marloncummings(a)chemistry.harvard.edu>, "Lalonde, Mathieu" < LALONDE(a)fas.harvard.edu>, "Chapin, Marcia" <chapin(a)chemistry.harvard.edu> Cc: "Paterno, Michael" <paterno(a)chemistry.harvard.edu>, "Connors, Jerome" < connors(a)chemistry.harvard.edu> Hello all, There will be an electrical shutdown on Friday, June 6th, from 5:00am – 9:00am. Areas affected include the Finance Office, the Mail Room, the Davy Crockett Room and the Safety Office on the 1st floor of Converse as well as the Aspuru-Guzik and Shaknovich labs on the ground floor of Converse. A portion of the Library will also be affected. Please plan accordingly and turn off all computers and other electronics the night before. Thank you in advance for your cooperation. Please contact the Facilities Department at 5-3076 with any questions and/or concerns. Best, The Facilities Team

9 years, 11 months

[Aspuru-Guzik group list] Fwd: [CCB_Staff] Data Outlet Shutdown In Mallinckrodt

by Marlon Cummings

---------- Forwarded message ---------- From: Popillo, Alexa <apopillo(a)fas.harvard.edu> Date: Thu, Jun 5, 2014 at 10:56 AM Subject: [CCB_Staff] Data Outlet Shutdown In Mallinckrodt To: "Paterno, Michael" <paterno(a)chemistry.harvard.edu>, "Connors, Jerome" < connors(a)chemistry.harvard.edu> *Attention to all CCB personnel in Mallinckrodt.* *There will be a network interruption of all data outlets in the Mallinckrodt building starting Friday, June 6th at approximately 6:30PM until Saturday, June 7th at 6:00am.* *This is for a long awaited upgrade of our tele-data infrastructure and will only affect the data connections within the Mallinckrodt building.* *Please contact the Facilities Department at 5-3076 with any questions and/or concerns. Thank you in advance for your cooperation.* _______________________________________________ ccb_staff mailing list ccb_staff(a)lists.fas.harvard.edu https://lists.fas.harvard.edu/mailman/listinfo/ccb_staff

9 years, 11 months

[Aspuru-Guzik group list] Aspuru Group Meeting TODAY at 2:30 pm in Cabot Division Room

by Felipe Herrera Urbina

Dear friends, I apologize for the late announcement. Today we have a very interesting talk by Dr. Salvatore Mandra about his work on novel algorithmic improvements for reducing the complexity of solving optimization problems using quantum spin networks. Please see the title and abstract of his talk below. See you there, Felipe Herrera -------- *Title:* Exponential Reduction of the Hilbert Space for Adiabatic Quantum Optimization Problems *Abstract:* Adiabatic Quantum Optimization (AQO) is a new paradigm for solving optimization problems by exploiting quantum effects. Despite the many theoretical and numerical advances, a strong limitation for a detailed analysis of AQO resides in the exponential scaling of the classical computational resources required to represent large quantum systems. In this group meeting, I will present a new method to exactly compute the energy spectrum of arbitrarily large quantum systems using only a polynomial amount of classical computational resources. Future perspectives and limitations of the method will be discussed.

9 years, 11 months

[Aspuru-Guzik group list] New Email Address: iansdunn@gmail.com

by Ian Dunn

Dear friends and family, My Harvard email address dunn(a)college.harvard.edu is expiring soon. From now on, please email me at my new permanent email address: iansdunn(a)gmail.com Thanks! ~Ian

9 years, 11 months

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aspuru-list June 2014