Dear all,
Please be informed about the Solid State Physics Seminar:
Date: 24. November 2011, 14:30h, in HPF G 6
Speaker: Andreas Dewes, Commissariat à l'Energie Atomique, Quantronics Group, F-Saclay
Title: Running Grover's Algorithm on a 2-Qubit Quantum Processor.
Abstract:
We operate a superconducting quantum processor consisting of two tunable
transmon qubits coupled by a swapping interaction, and equipped
with non destructive single-shot readout of the two qubits [1]. With this
processor, we run the Grover search algorithm among four objects and
find that the correct answer is retrieved after a single run with a success
probability between 0.52 and 0.67, significantly larger than the 0.25
achieved with a classical algorithm. This constitutes a proof-of-concept
for the quantum speed-up of electrical quantum processors [2].
[1] arXiv:1109.6735v1
[2] arXiv: 1110.5170v1
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
Dear all
Please be informed about the following QSIT Colloquium on Monday
With best regards,
Ilona Blatter
------------------------------
Date: Monday November 21, 2011
Time: 11:00
Place: ETH Science City, HPV G 4
Host: Klaus Ensslin
Spin current phenomena: new impetus to spintronics
Sergio Machado Rezende
Departamento de Física, Universidade Federal de Pernambuco, Recife, PE, Brazil
Former Minister of Science of Brazil
In recent years several phenomena have been discovered in magnetic nanostructures in which the transport of carriers depends on their spin. In addition to the long time known charge and heat currents, these phenomena also involve spin currents. Among them there are the spin Hall effect (SHE), the inverse spin Hall effect (ISHE) and the spin Seebeck effect (SSE). These effects make possible the conversion from one type of current to another in very efficient processes opening new possibilities for the development of spintronics. We will review recent developments in this area and present new results obtained with the spin Hall and spin Seebeck effects.
------------------------------------------
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
Home: +41 44 844 42 50
Dear all
Please be informed about the following QSIT Colloquium on Monday
With best regards,
Ilona Blatter
------------------------------
Date: Monday November 21, 2011
Time: 11:00
Place: ETH Science City, HPV G 4
Host: Klaus Ensslin
Spin current phenomena: new impetus to spintronics
Sergio Machado Rezende
Departamento de Física, Universidade Federal de Pernambuco, Recife, PE, Brazil
Former Minister of Science of Brazil
In recent years several phenomena have been discovered in magnetic nanostructures in which the transport of carriers depends on their spin. In addition to the long time known charge and heat currents, these phenomena also involve spin currents. Among them there are the spin Hall effect (SHE), the inverse spin Hall effect (ISHE) and the spin Seebeck effect (SSE). These effects make possible the conversion from one type of current to another in very efficient processes opening new possibilities for the development of spintronics. We will review recent developments in this area and present new results obtained with the spin Hall and spin Seebeck effects.
------------------------------------------
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
Home: +41 44 844 42 50
Dear all
Please be informed about the following seminar.
With best regards,
Ilona
--------------------------------------------
Date : Mon Nov 14, 2011
Place: University of Basel, Klingelbergstr. 82, Lecture Hall 1
Time: 16:15
Host: Christian Schönenberger
Epitaxial graphene on SiC for quantum metrology
Sergey Kubatkin
Chalmers University, Sweden
--------------------------------------------
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
Anfang der weitergeleiteten E-Mail:
> Von: Prasenjit Saha <psaha(a)physik.uzh.ch>
> Datum: 7. November 2011 11:11:58 MEZ
> An: renner(a)phys.ethz.ch, christandl(a)phys.ethz.ch
> Betreff: Interaction-free Measurement
>
> Hi,
>
> On wednesday, I will give a 30 min presentation on interaction-free
> measurement. This is formally a Probevorlesung for Habilitation at
> UniZh, but everyone is welcome and I will try to make it interesting
> for students. Please would you circulate to group members.
>
> Thanks!
> Prasenjit
>
> ------------------------------------------------------------------------
>
> Date: Wednesday 9. November
> Time: 14.00 to 14.30
> Room: Irchel 36 J 33
>
> Prasenjit Saha
>
> Title: Quantum Bomb Detection
>
> Interaction-free measurement is a quantum paradox: a bomb that
> explodes if it is struck by a single photon can be detected optically
> without letting it explode. The paradox was first raised in 1993 by
> Elitzur and Vaidman, and subsequent work has both improved the
> theoretical formulation and verified it experimentally.
> This talk will explain what interaction-free measurement means,
> suggest a classical analogue, and speculate about applications.
>
> ------------------------------------------------------------------------
>
Matthias Christandl
Institute for Theoretical Physics
ETH Zurich
http://www.itp.phys.ethz.ch/people/christandl/index
Dear QSIT members
The next QSIT Lunch Seminar will take place on Thursday Nov 3, at 12:00 noon in the room HPF G6, ETH Hönggerberg, Zurich.
There will be two talks of 30 minutes duration jointly presented by two collaborators from different research groups.
At 13:00 pm free pizza is offered to the participants.
From Coulomb to Photon Blockade (and back)
Sebastian Schmidt, Institute for Theoretical Physics, ETH Zurich
and
Observation of Resonant Photon Blockade at Microwave Frequencies Using
Correlation Function Measurements
Christian Lang, Quantum Device Lab, ETH Zurich
Abstracts: http://www.nccr-qsit.ethz.ch/news/lunchseminar/november2011
Please register for your free pizza at the following link by Tuesday November 1, 12:00 noon:
http://www.doodle.com/9q82v4ct2gs8kacr
If you have suggestions on topics or speakers, or would like to present recent results of your research, please send your information to Andreas Wallraff or Ilona Blatter.
With best regards,
Andreas Wallraff Ilona Blatter
Professor for Solid State Physics QSIT Coordinator
------------------------------------------------------------------------------------------------------
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
Home: +41 44 844 42 50
Dear all
The NCCR QSIT organizes periodically a 'Special Lecture for Master and PhD Students'.
This semester the lecture will be given by Leo Kouwenhoven. He is recognized to give outstanding and comprehensive talks.
Furthermore he will give the Physics Colloquium later on the same day and the lecture will serve as background.
With best regards,
Ilona Blatter
-------------
Date: Wednesday November 2, 2011
Time: 12:45 -14:30
Place: HPV G5
Quantum Physics in Nanowires and Nanotubes
Leo Kouwenhoven,
Delft University of Technology, The Netherlands
Our nanowires (diameter ~50nm, length ~5micron) consist of semiconducting material such as InAs, InP or InSb. We choose these materials for their specific advantages with respect to optical properties (e.g. single photon sources), induced-superconductivity and strong spin-orbit interaction. We define small, nanoscale devices such as quantum dots and superconducting rings. The phenomena that we study are qubits and funny Josephson junctions. The funniest of all would be one with Majorana Fermions in the junction. Our carbon nanotubes are fabricated in a special way such they remain ultra-clean. The consequence of this cleanliness is that the mechanical vibration of a freely suspended nanotube can undergo about a million (!) oscillations before it is damped.
Things to read: S. Nadj-Perge, S.M. Frolov, E.P.A.M. Bakkers and L.P. Kouwenhoven Spin-orbit qubit in a semiconductor nanowire, Nature 468, 1084-1087 (2010)
---------------------------------------------------
ETH Zurich
Dr. Ilona Blatter
QSIT Coordinator
Laboratory for Solid State Physics
HPF E 17
Schafmattstrasse 16
8093 Zurich
ilona.blatter(a)phys.ethz.ch
www.qsit.ethz.chwww.nccr-qsit.ethz.ch
Phone: +41 44 633 36 06
Home: +41 44 844 42 50
------------------------------------------------------------------------------------------------------
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
Home: +41 44 844 42 50
Dear QSIT members
The next QSIT Lunch Seminar will take place on Thursday Nov 3, at 12:00 noon in the room HPF G6, ETH Hönggerberg, Zurich.
There will be two talks of 30 minutes duration jointly presented by two collaborators from different research groups.
At 13:00 pm free pizza is offered to the participants.
From Coulomb to Photon Blockade (and back)
Sebastian Schmidt, Institute for Theoretical Physics, ETH Zurich
and
Observation of Resonant Photon Blockade at Microwave Frequencies Using
Correlation Function Measurements
Christian Lang, Quantum Device Lab, ETH Zurich
Abstracts: http://www.nccr-qsit.ethz.ch/news/lunchseminar/november2011
Please register for your free pizza at the following link by Tuesday November 1, 12:00 noon:
http://www.doodle.com/9q82v4ct2gs8kacr
If you have suggestions on topics or speakers, or would like to present recent results of your research, please send your information to Andreas Wallraff or Ilona Blatter.
With best regards,
Andreas Wallraff Ilona Blatter
Professor for Solid State Physics QSIT Coordinator
------------------------------------------------------------------------------------------------------
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
Home: +41 44 844 42 50
Dear all
Please be informed about the following QSIT Seminar.
With best regards,
Ilona Blatter
---------------------------------------------------
Date: Tuesday, November 1, 2011
Time: 11:00
Place: HPF G 6
Host: Andreas Wallraff
Working with multipartite entanglement in real systems
Jens Siewert
Universidad del País Vasco, Bilbao, Spain
In this talk I will present briefly two topics of ongoing research regarding the generation and detection of multipartite entanglement.
In the first part, I will explain an idea how multipartite entanglement could be generated in a circuit-QED system with many qubits (N > 10) and, in particular, how this entanglement could be detected and investigated systematically.
The second topic of my presentation focuses on a new method to quantify tripartite entanglement in three-qubit states.
This method is suitable to compute the so-called three-tangle for mixed states and gives exact values for a large family of states with a certain symmetry, while for all other states it yields a nontrivial lower bound.
------------------------------------------------------------------------------------------------------
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
Home: +41 44 844 42 50
Dear all
Unfortunately there were only very few functioning links in the newsletter I sent this morning.
These were lost when converting from .doc to .pdf
Please download the corrected version at
http://www.nccr-qsit.ethz.ch/news/newsletter/october2011
With 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
Home: +41 44 844 42 50