Korbinian and Pelayo participated in IQST’s Quantum Science Slam
IQST’s Quantum Science Slam took place on February 8th at the Theaterhaus Stuttgart:
7 amazing performances, a fully packed hall and great fun. The audience have voted:
1st winner: Lukas Kürten from the Max Planck Institute FKF
2nd winners, jointly: Sven Bodenstedt from University of Stuttgart and Korbinian from our group! Well done!
Here is a photo collage of the event:
Martin Plenio is listed as Highly Cited Researcher 2017
As one of only two theoretical physicist in Germany, Martin is listed in the annual compilation of the worlds most cited and influential scientists. We are delighted with this award which recognizes the excellent work of the entire group over the last decade.
The listing can be found here.
A 4-year long project bears fruit with a publication in Nature Physics
In 2010 we proposed theoretically a new method for efficient quantum state tomography for large quantum systems. In a joint project with the trapped ion group at Innsbruck we have achieved the first experimental demonstration of this method. The project started in 2013 required the sustained effort of two generations of PhD students (Tillmann & Milan) and postdocs (Ish & Marcus). Well done!
ITP work is chosen as Editor’s Suggestion in PRL
Our recent article “Resource Theory of Superposition,” by T. Theurer, N. Killoran, D. Egloff, and M. B. Plenio, has been highlighted as an Editor’s Suggestion in the most recent volume of Physical Review Letters.
The article can be found here.
Jorge is a dad!
Congratulations, Jorge, to the birth of your daughter, Alejandra!
We hope you have a joyful and healthy journey ahead and we are looking forward to Alejandra’s first visit to the institute!
Work of the group is published in Science
Recently, Ilai and Martin, in a collaboration with Liam McGuinness and Fedor Jelezko and their team, published their work in Science. In a joint theoretical and experimental work NMR signals of nanoscale samples were measured in a setup that is capable, in principle, of resolving chemical shifts and J-coupling which are essential quantities to identify molecules or determine their structure.
Click here to view the article
Quantum biology work of the group features in a full page particle in the Frankfurter Allgemeine Sonntagszeitung
ITP and the Center of QuantumBioSciences is part of newly approved Collaborative Research Center 1279
The work of the Institute was mentioned in The Economist
Congratulations to Jorge Casanova for winning a “Forschungsbonus”!
Two articles from ITP in first issue ever of QST journal
We are proud that our group has two articles in the first issue ever of the new journal ‘Quantum Science and Technology’:
Coherent control of quantum systems as a resource theory
The gist of it
While controlling a quantum system is a standard task nowadays, we are still far away from developing quantum computers, and one might wonder what is the difference between the two. Qualitatively the difference is that for quantum computing one needs to control quantum systems in a quantum way, using quantum systems instead of directly using the large apparata or (classical) electromagnetical fields that often are enough to control a quantum system directly. In this letter we make this idea precise by building a theory which allows us to quantify the usefulness of controlling a quantum system through a quantum system instead of using a classical one.
Realising a quantum absorption refrigerator with an atom-cavity system
The gist of it
Cooling of atomic motion is an essential precursor for many interesting experiments and technologies, such as quantum computing and simulation using trapped atoms and ions. In most cases, this cooling is performed using lasers to create a kind of light-induced friction force which slows the atoms down. This process is often rather wasteful, because lasers use up a huge amount of energy relative to the tiny size of the atoms we want to cool. Here, we propose to solve this problem using a quantum absorption refrigerator: a machine that is powered only by readily available thermal energy, such as sunlight, as it flows through the device. We describe how to build such a refrigerator, and predict that sunlight could actually be used to cool an atom to nearly absolute zero temperature. The refrigerator works by trapping the sunlight between two mirrors, in such a way that every single photon makes a significant contribution to the friction force slowing the atom down. Similar schemes could eventually be important for reducing the energy cost of cooling in future quantum technologies.
Most Recent Papers
- Toward Hyperpolarization of Oil Molecules via Single Nitrogen Vacancy Centers in Diamond, Nano Letters, 18, 1882 (2018)
- Non-additive dissipation in open quantum networks out of equilibrium, New Journal of Physics, 20, 033005 (2018)
- Dissipative phase transition in the open quantum Rabi model, Physical Review A, 97, 013825 (2018)
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