April 2015 - ITP-quantumseminare

QC2/QSIT Seminar in Basel - Rafal Demkowicz-Dobrzanski - Monday, May 4, 2015
by QSIT Seminar 30 Apr '15

30 Apr '15

Dear all Please be informed about the following QC2/QSIT Seminar in Basel. With best regards, Ilona Blatter ------------------------------------------------------------------------------------------------------ Date: Monday , May 4, 2015 Time: 16:15 Place: University of Basel, Klingelbergstr. 82, Lecture Hall 1 Host: Philipp Treutlein Quantum enhanced metrology - ideals and reality Rafal Demkowicz-Dobrzanski University of Warsaw, Poland Link: https://physik.unibas.ch/dept/pages/de/events/cms.htm --------------------------------------------------- ETH Zurich Dr. Ilona Blatter NCCR QSIT Coordinator Laboratory for Solid State Physics , HPF E 17 Otto-Stern-Weg 1 CH 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 - Eli Megidish - Monday, May 4, 2015
by QSIT Seminar 30 Apr '15

30 Apr '15

Dear all Please be informed about the following QSIT Seminar. With best regards, Ilona Blatter ------------------------------------------------------------------------------------------------------ Date: Monday, May 4, 2015 Time: 15:00 Place: ETH Zurich, Hönggerberg, HPF G 6 Host: Jonathan Home Entangling many photons that never co-existed Eli Megidish The Hebrew University of Jerusalem, Israel Abstract: http://www.nccr-qsit.ethz.ch/news/talks/seminars2015/abstract_Megidish --------------------------------------------------- ETH Zurich Dr. Ilona Blatter NCCR QSIT Coordinator Laboratory for Solid State Physics , HPF E 17 Otto-Stern-Weg 1 CH 8093 Zurich ilona.blatter(a)phys.ethz.ch www.nccr-qsit.ethz.ch Phone: +41 44 633 36 06

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special talk: Nilanjana Datta 3pm E41.1
by Joe Renes 28 Apr '15

28 Apr '15

Hi all, tomorrow we'll have a special talk from Nilanjana Datta of University of Cambridge. 3pm in E41.1. Title and Abstract below. -joe --------- Title: Entropy power inequalities for qudits Abstract: Shannon’s entropy power inequality (EPI) can be viewed as a statement of concavity of an entropic function of a continuous random variable under a scaled addition rule: f(√a X + √(1-a) Y) ≥ a f(X) + (1 − a)f(Y) ∀ a ∈ [0, 1]. Here, X and Y are continuous random variables and the function f is either the differential entropy or, for a = 1/2, the entropy power. Koenig and Smith obtained quantum analogues of these inequalities for continuous-variable quantum systems, where X and Y are replaced by bosonic fields and the addition rule is the action of a beamsplitter with transmissivity a on those fields. We similarly establish a class of EPI analogues for d-level quantum systems (i.e. qudits). The underlying addition rule for which these inequalities hold is given by a quantum channel that depends on the parameter a ∈ [0, 1] and acts like a finite-dimensional analogue of a beamsplitter with transmissivity a, converting a two-qudit product state into a single qudit state. We refer to this channel as a partial swap channel because of the particular way its output interpolates between the states of the two qudits in the input as a is changed from zero to one. We obtain analogues of Shannon’s EPI, not only for the von Neumann entropy and the entropy power for the output of such channels, but for a much larger class of functions as well. This class includes the Renyi entropies and the subentropy. We also prove a qudit analogue of the entropy photon number inequality (EPnI). Finally, for the subclass of partial swap channels for which one of the qudit states in the input is fixed, our EPIs and EPnI yield lower bounds on the minimum output entropy and upper bounds on the Holevo capacity. This is joint work with Koenraad Audenaert and Maris Ozols.

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Workshop on Time in Physics
by QSIT Seminar 28 Apr '15

28 Apr '15

Dear all Please be informed about the Workshop on Time in Physics September 7 - 11, 2015 at ETH Zurich organized by Daniela Frauchiger and Sandra Rancovic For details see: http://time-workshop.phys.ethz.ch With best regards, Ilona Blatter --------------------------------------------------- ETH Zurich Dr. Ilona Blatter NCCR QSIT Coordinator Laboratory for Solid State Physics , HPF E 17 Otto-Stern-Weg 1 CH 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 - Edo Waks - Monday, April 27, 2015
by QSIT Seminar 24 Apr '15

24 Apr '15

Dear all Please be informed about the following QSIT Seminar. With best regards, Ilona Blatter ------------------------------------------------------------------------------------------------------ Date: Monday, April 27, 2015 Time: 14:00 Place: ETH Zurich, Hönggerberg, HPF G 6 Host: Atac Imamoglu Quantum nanophotonics: controlling light with single quantum dots Edo Waks University of Maryland, College Park, USA Abstract: http://www.nccr-qsit.ethz.ch/news/talks/seminars2015/abstract_Waks --------------------------------------------------- ETH Zurich Dr. Ilona Blatter NCCR QSIT Coordinator Laboratory for Solid State Physics , HPF E 17 Otto-Stern-Weg 1 CH 8093 Zurich ilona.blatter(a)phys.ethz.ch www.nccr-qsit.ethz.ch Phone: +41 44 633 36 06

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QC2/QSIT colloquium in Basel - Ferdinand Schmidt-Kale - Fr April 24, 2015
by QSIT Seminar 21 Apr '15

21 Apr '15

Dear all Please be informed about the following QC2/QSIT colloquium in Basel. With best regards, Ilona Blatter ------------------------------------------------------------------------------------------------------ Date: Friday April 24, 2015 Time: 15:15 Place: Universität Basel, Eingang: St. Johanns-Ring 25, Hörsaal 1 Host: Philipp Treutlein Modern Quantum Technologies with Trapped Ions Ferdinand Schmidt-Kaler Universität Mainz, Germany Link: https://physik.unibas.ch/dept/pages/de/events/colloquium.htm --------------------------------------------------- ETH Zurich Dr. Ilona Blatter NCCR QSIT Coordinator Laboratory for Solid State Physics , HPF E 17 Otto-Stern-Weg 1 CH 8093 Zurich ilona.blatter(a)phys.ethz.ch www.nccr-qsit.ethz.ch Phone: +41 44 633 36 06

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today's group meeting 4pm K52
by Joe Renes 21 Apr '15

21 Apr '15

Hi all, today we'll hear from Lea. We're in K52 since the other room is booked. Best, -joe

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2 QSIT Seminars - Jean Dalibard & Michael Hartmann - Thursday, April 23, 2015
by QSIT Seminar 20 Apr '15

20 Apr '15

Dear all Please be informed about the following 2 QSIT Seminars. With best regards, Ilona Blatter ------------------------------------------------------------------------------------------------------ Date: Thursday, April 23, 2015 Time: 15:30 Place: ETH Zurich, Hönggerberg, HPF G 6 Host: Julian Léonhard The uniform 2D Bose gas, in and out of equilibrium Jean Dalibard Collège de France and Laboratoire Kastler Brossel, France Abstract: http://www.nccr-qsit.ethz.ch/news/talks/seminars2015/abstract_Dalibard ------------------------------------------------------------------------------------------------------ Date: Thursday, April 23, 2015 Time: 16:45 Place: ETH Zurich, Hönggerberg, HPF G 6 Host: Andreas Wallraff Non-Classical Mechanical Motion in Optoelectromechanics Michael Hartmann Heriot-Watt University, Edinburgh, UK Abstract: http://www.nccr-qsit.ethz.ch/news/talks/seminars2015/abstract_Hartmann ------------------------------------------------------------------------------------------------------ ETH Zurich Dr. Ilona Blatter NCCR QSIT Coordinator Laboratory for Solid State Physics , HPF E 17 Otto-Stern-Weg 1 CH 8093 Zurich ilona.blatter(a)phys.ethz.ch www.nccr-qsit.ethz.ch Phone: +41 44 633 36 06

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QC2/QSIT Seminar in Basel: Mon April 20, 2015 - Andrew Ferguson
by QSIT Seminar 17 Apr '15

17 Apr '15

Dear all Please be informed about the following QC2/QSIT Seminar in Basel. With best regards, Sandra Künzel ------------------------------------------------------------------------------------------------------ Date: Monday April 20, 2015 Time: 16:15 Place: Universität Basel, Klingelbergstr. 82, Hörsaal 1 Host: Christian Schönenberger Quasiparticles in superconducting nanostructures Andrew Ferguson Cambridge University, England Link: https://physik.unibas.ch/dept/pages/de/events/cms.htm 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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Wata cukrowa,dmuchane zamki,animatorki
by Atrakcje na imprezy dla dzieci i nie tylko 15 Apr '15

15 Apr '15

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