July 2012 - ITP-quantumseminare - lists.phys.ethz.ch

Group Meeting July 31st
by Normand Beaudry 31 Jul '12

31 Jul '12

Dear all, The group meeting will take place at 3:30pm in HIT E 41.1. Fred will be giving a tutorial on semi-definite programs (SDPs). Cheers, Norm

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QSIT Seminar: Dominik Schneble - Friday August 3, 2012
by QSIT Seminar 30 Jul '12

30 Jul '12

Dear all Please be informed about the following QSIT Seminar. With best regards, Ilona Blatter ------------------------------------------------------------------------------------------------------ Date: Friday August 3, 2012 Time : 13:30 Place: ETH Science City, HPF G 6 Host: Daniel Greif/ Tilman Esslinger Transport and excitations in lattice-trapped bosonic mixtures Dominik Schneble Stony Brook University, USA abstract: http://www.nccr-qsit.ethz.ch/news/talks/abstractSchneble ------------------------------------------------------------------------------------------------------ ETH Zurich Dr. Ilona Blatter NCCR QSIT Coordinator Laboratory for Solid State Physics HPF E 17 Schafmattstrasse 16 8093 Zurich ilona.blatter(a)phys.ethz.ch www.nccr-qsit.ethz.ch Phone: +41 44 633 36 06

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Fwd: Announcement solid state physics seminar, 31. July, 16:15h
by QSIT Seminar 30 Jul '12

30 Jul '12

> Von: Gaby Strahm <strahm(a)phys.ethz.ch> > Betreff: Announcement solid state physics seminar, 31. July, 16:15h > Datum: 30. Juli 2012 10:56:45 MESZ > An: FKP alle <fkp-alle(a)phys.ethz.ch> > > Dear all, > > Please be informed about the following solid state physics seminar: > > Date: Tuesday, 31.07.2012, 16:15h > > Location: HPF G6 > > Speaker: Peter Maurer, Harvard University > > Title: Quantum control of diamond defects for quantum information and bio-imaging > > Abstract: > In recent years, much attention has focused on the quantum control of nanoscale systems under ambient condition; these efforts span a variety of goals ranging from quantum metrology to quantum communication and computation. In this talk, I will focus on recent efforts toward the realization of these goals by taking advantage of the spin properties of individual Nitrogen Vacancy (NV) color centers in diamond. I will begin by introducing a novel technique, which allows for the detection and manipulation of individual spins with resolution beyond the diffraction limit [1]; this constitutes an important building block for an NV-based quantum processor [2] and opens the door to nanoscale bio-imaging/sensing. I will then discuss the extraordinary readout and coherence properties of NV-based quantum registers, demonstrating single shot readout and storage times well beyond a second at room temperature [3]. The ability to store quantum information on a macroscopic time scale in small, portable devices is an important step towards the practical realization of "quantum money" type encryption primitives. > > [1] Maurer et. al. - Far-field optical imaging and manipulation of individual spins with nanoscale resolution - Nature Physics 6 - 912 to 918 - Sep. 2010 > [2] Yao et. al. - Scalable architecture for a room temperature solid-state quantum information processor - Nature Communication 3 - 800 - Mar. 2012 > [3] Maurer et. al. - Room temperature quantum bit memory exceeding one second - Science 8 - 1283 - Jun. 2012 > > Host: Andreas Wallraff > > You are cordially invited! > > kind regards > > -- > Gaby Strahm > ETH Zürich > Solid State Physics Laboratory > Schafmattstr. 16, HPF F7 > 8093 Zürich > Switzerland > > Phone: +41 44 633 23 35 > Fax: +41 44 633 10 72 > > Be environment friendly, only print this email if absolutely necessary. > ------------------------------------------------------------------------------------------------------ ETH Zurich Dr. Ilona Blatter NCCR QSIT Coordinator Laboratory for Solid State Physics HPF E 17 Schafmattstrasse 16 8093 Zurich ilona.blatter(a)phys.ethz.ch www.nccr-qsit.ethz.ch Phone: +41 44 633 36 06

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Thank you and reminder: QSIT feedback by July 31: win an iPad
by Ilona Blatter 29 Jul '12

29 Jul '12

Dear all Thank you to all those that have already answered to the on-line poll! If you have not done so yet, please take just a few minutes to answer the survey. With best regards, Ilona Blatter --------- Dear all The NCCR QSIT is now running for 18 month and it's time to receive feedback from all of you. This feedback is important for our reporting to the SNSF im September 2012. Please take five minutes to answer the questions in this on-line poll until July 31: https://docs.google.com/spreadsheet/viewform?formkey=dGs4MUtmSnpOQWJMOTB3dH… All participants will take part in a sweepstake to win an iPad. Thank you for your cooperation and best regards, Ilona Blatter --------------------------------------------------- ETH Zurich Dr. Ilona Blatter NCCR QSIT Coordinator Laboratory for Solid State Physics HPF E 17 Schafmattstrasse 16 8093 Zurich ilona.blatter(a)phys.ethz.ch www.nccr-qsit.ethz.ch Phone: +41 44 633 36 06

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QSIT Seminar: Tue July 31, 2012 - Jungsang Kim
by QSIT Seminar 26 Jul '12

26 Jul '12

Dear all Please be informed about the following QSIT Seminar. With best regards, Sandra Künzel ------------------------------------------------------------------------------------------------------ Date: Tuesday July 31, 2012 Time : 11:00 Place: ETH Science City, HPF G 6 Host: Jonathan Home Modular Universal Scalable Ion-trap Quantum Computer (MUSIQC): Engineering a Practical Quantum Computer Jungsang KimDuke University USA abstract: http://www.nccr-qsit.ethz.ch/news/talks/abstractKim QSIT Seminar qsit-seminar(a)phys.ethz.ch ETH Zurich Sandra Künzel NCCR QSIT (Finances) HPF E 17 8093 Zurich www.nccr-qsit.ethz.ch

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Group Meeting July 24th
by Normand Beaudry 23 Jul '12

23 Jul '12

Dear all, Tomorrow's group meeting will be in HIT E 41.1 at 16:00. Philippe and Roger will be speaking. I won't be there. Have a good meeting, Norm

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QSIT Seminar: Yiwen Chu, Thursday July 26, 2012
by QSIT Seminar 23 Jul '12

23 Jul '12

Dear all Please be informed about the following QSIT Seminar. With best regards, Sandra Künzel ------------------------------------------------------------------------------------------------------ Date: Thursday July 26, 2012 Time : 11:00 Place: ETH Science City, HPF G 6 Host: Emre Togan, Atac Imamoglu Optical Diamond Nanocavities for Integrated Quantum Networks Yiwen Chu Harvard University, Cambridge, USA abstract: http://www.nccr-qsit.ethz.ch/news/talks/abstractChu QSIT Seminar qsit-seminar(a)phys.ethz.ch ETH Zurich Sandra Künzel NCCR QSIT (Finances) HPF E 17 8093 Zurich www.nccr-qsit.ethz.ch

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Group Meeting July 17th
by Normand Beaudry 16 Jul '12

16 Jul '12

Dear all, Tomorrow's group meeting is in the usual place, HIT E 41.1, at 16:00. Volker will be speaking. Cheers, Norm

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QSIT Seminar: Lucas Lamata, Thursday July 19, 2012
by QSIT Seminar 16 Jul '12

16 Jul '12

Dear all Please be informed about the following QSIT Seminar. With best regards, Ilona Blatter ------------------------------------------------------------------------------------------------------ Date: Thursday July 19, 2012 Time : 11:00 Place: ETH Science City, HPF G 6 Host: Stefan Filipp, Andreas Wallraff Quantum Simulations with Trapped Ions Lucas Lamata Universidad del País Vasco UPV/EHU, Bilbao, Spain abstract: http://www.nccr-qsit.ethz.ch/news/talks/abstractLamata ------------------------------------------------------------------------------------------------------ ETH Zurich Dr. Ilona Blatter NCCR QSIT Coordinator Laboratory for Solid State Physics HPF E 17 Schafmattstrasse 16 8093 Zurich ilona.blatter(a)phys.ethz.ch www.nccr-qsit.ethz.ch Phone: +41 44 633 36 06

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Group Meeting Today
by Normand Beaudry 10 Jul '12

10 Jul '12

Dear all, The group meeting is in the usual time and place of HIT E 41.1 at 16:00. There will be the Masters presentation of Emilio Onorati and a talk by our visitor Vladimír Bužek. The details of his talk are below. Cheers, Norm On the origin of (statistical) temperature in quantum Universe Vladimír Bužek Research Center for Quantum Information, Slovak Academy of Sciences, Bratislava In my talk we will argue that within a non-relativistic quantum-mechanical model of a Universe (the q-Universe) the statistical temperature emerges as a consequence of quantum entanglement. In particular, I will model the q-Universe as a system of interacting spin-1/2 particles described by a specific Hamiltonian (eg Ising Hamiltonian). The q-Universe is assumed to be in a pure state of its Hamiltonian. I will show that any (almost) sub-system of the q-Universe is in a mixed state described by a density operator such that probabilities of outcomes of measurements in the energy eigen-basis of the sub-system can be very well approximated by the Boltzmann distribution.

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