Seminar: "Quantum coherence, entanglement, and other correlations in quantum thermodynamics and quantum technology" Dr. Alexander Streltsov

Speaker:

Dr. Alexander Streltsov

Faculty of Applied Physics and Mathematics

Gdańsk University of Technology, Poland

Title: "Quantum coherence, entanglement, and other correlations in quantum thermodynamics and quantum technology"

Abstract

Due to the rapid development of quantum technology in the last years, we can expect that this postclassical technology becomes part of our daily life in the next decades. Classical technology as we use it today is based on the laws of classical physics and classical information theory. Quantum technology on the other hand also makes use of the laws of quantum mechanics, and allows for fundamentally new approaches for problems which are either unsolvable or very inefficiently solvable with the use of classical devices. Nonclassical phenomena like quantum coherence, entanglement, and quantum discord are regarded as the main reason for this quantum speedup. It is thus important and timely to provide a solid theoretical background for quantum coherence, entanglement, and discord, with particular focus on their role in quantum technology. An important first step in this direction was the recent development of the operational resource theory of coherence. This theory allows to view coherence as a resource which can be produced and consumed, and to study its manipulation in general quantum-technological tasks.

In this seminar, I will first review the theories of coherence, entanglement, and quantum discord, to which I have significantly contributed in the past years. I will then outline the research which I aim to carry out at OIST. This includes the study of coherence and quantum correlations in general quantum technological applications, the investigation of coherence and quantum correlations in quantum thermodynamics, and the study of quantum phenomena in biology. I will also outline ideas for collaboration with the Quantum Systems Unit at OIST, and with other partners at the University of Ulm (Germany) and Universitat Autònoma de Barcelona (Spain).

Biography

Dr. Alexander Streltsov received his PhD in physics in the year 2013 at the University of Düsseldorf (Germany) under the supervision of Dagmar Bruß. The research during his PhD studies was awarded with the prize for the best dissertation by the German Physical Society and the University of Düsseldorf. In the years 2014-2016 Dr. Streltsov was the principal investigator of his own project, carried out at ICFO (Barcelona, Spain) and Freie Universität Berlin (Germany), and supported by the Alexander von Humboldt-Foundation. Currently, Dr. Streltsov is working at the Gdańsk University of Technology in Poland, supported by the Polonez fellowship of the National Science Center in Poland. Dr. Streltsov was one of the main organizers of the 586. WE-Heraeus-Seminar “Quantum correlations beyond Entanglement”, which took place in Bad Honnef (Germany) in April 2015.