Biography:Jens Eisert

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Short description: German physicist
Jens Eisert
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Born9 October 1970 (1970-10-09) (age 53)
NationalityGerman-Swedish
Alma materImperial College London
University of Potsdam
University of Freiburg
University of Connecticut
Known forQuantum information theory
AwardsERC Advanced Grant (2023), Google NISQ Award (2019), ERC Consolidator Grant (2012), Berlin Institute for Advanced Study Fellowship (2009–2010), EURYI Award (2004), Michelson Prize (2001), Fulbright Scholarship (1994)
Scientific career
FieldsPhysics
InstitutionsFree University of Berlin
Doctoral advisorMartin Wilkens

Jens Eisert (born 9 October 1970) is a German physicist, ERC fellow, and professor at the Free University of Berlin. He is also affiliated with the Helmholtz Association and the Fraunhofer Society.

Scientific work

He is known for his research in quantum information science and quantum many-body theory in condensed matter physics. He has made significant contributions to entanglement theory and the study of quantum computing, as well as to the development of protocols in the quantum technologies and to the study of complex quantum systems. Work on compressed sensing quantum state tomography[1] he has contributed to has been influential for developing notions of benchmarking and the verification of quantum devices to ensure their proper functioning.[2] The concept of a graph state[3] has become a relevant class of multi-qubit quantum states with a number of applications in quantum computing.

He has contributed to realizing a first dynamical quantum simulator,[4] in joint work with Immanuel Bloch, Ulrich Schollwöck and others, building on his work on non-equilibrium quantum physics.[5][6] This work has also introduced the idea of benchmarking the performance of quantum devices against that of state-of-the-art classical tensor network methods for classical simulation, an idea that is still much pursued in the quest for achieving a quantum advantage[7] or quantum supremacy, as the situation of quantum devices computationally outperforming classical devices is also referred to.

In quantum many-body theory, he has helped understanding the role of area laws for entanglement entropies in quantum physics that are at the root of the functioning of tensor network methods.[8] He is also notable as one of the co-pioneers of quantum game theory[9][10] with Maciej Lewenstein and PhD advisor Martin Wilkens.

Education

He attended high school at the Wilhelm von Humboldt Gymnasium, Ludwigshafen, Germany. He obtained his first degree in physics from the University of Freiburg and his master's degree in mathematics and physics from the University of Connecticut under a Fulbright scholarship. In 2001, he obtained his PhD from University of Potsdam under Martin Wilkens with a thesis entitled Entanglement in Quantum Information Theory.

Career

In 2001–2002, he was a Feodor Lynen Fellow at Imperial College London. In 2002–2003, he was a visiting scholar at Caltech. During 2002–2005, he was a junior professor at the University of Potsdam. During the 2005–2008 period he was a lecturer at Imperial College London. In 2008, he became a full professor at the University of Potsdam and in 2011 a full professor at the Free University of Berlin. In 2009–2010, he was a fellow at the Institute for Advanced Study, Berlin.

He is a divisional associate editor of the Physical Review Letters.[11] He is also known for consistent contributions to the scientific community, such as being a coauthor of the European quantum technologies roadmap.[12]

Notes

  1. ↑ D. Gross, Y. K. Liu, S. T. Flammia, S. Becker, J. Eisert (2010). "Quantum state tomography via compressed sensing". Physical Review Letters 105 (15): 150401. doi:10.1103/PhysRevLett.105.150401. PMID 21230876. Bibcode: 2010PhRvL.105o0401G. 
  2. ↑ J. Eisert, D. Hangleiter, N. Walk, I. Roth, D. Markham, R. Parekh, U. Chabaud, E. Kashefi (2020). "Quantum certification and benchmarking". Nature Reviews Physics 2 (7): 382–390. doi:10.1038/s42254-020-0186-4. Bibcode: 2020NatRP...2..382E. 
  3. ↑ M. Hein, J. Eisert, H.J. Briegel (2004). "Multi-party entanglement in graph states". Physical Review A 69 (6): 062311. doi:10.1103/PhysRevA.69.062311. Bibcode: 2004PhRvA..69f2311H. 
  4. ↑ S. Trotzky, Y.-A. Chen, A. Flesch, I. P. McCulloch, U. Schollwöck, J. Eisert, I. Bloch (2012). "Probing the relaxation towards equilibrium in an isolated strongly correlated 1D Bose gas". Nature Physics 8: 325. doi:10.1038/nphys2232. 
  5. ↑ J. Eisert, M. Friesdorf, C. Gogolin (2015). "Quantum many-body systems out of equilibrium". Nature Physics 11 (2): 124–130. doi:10.1038/nphys3215. Bibcode: 2015NatPh..11..124E. 
  6. ↑ M. Cramer, C. M. Dawson, J. Eisert, T. J. Osborne (2008). "Exact relaxation in a class of nonequilibrium quantum lattice systems". Physical Review Letters 100 (3): 030602. doi:10.1103/PhysRevLett.100.030602. PMID 18232957. Bibcode: 2008PhRvL.100c0602C. 
  7. ↑ Hangleiter, D.; Eisert, J. (2023). "Computational advantage of quantum random sampling". Reviews of Modern Physics 95 (3): 035001. doi:10.1103/RevModPhys.95.035001. 
  8. ↑ J. Eisert, M. Cramer, M.B. Plenio (2010). "Area laws for the entanglement entropy". Reviews of Modern Physics 82: 277. doi:10.1103/RevModPhys.82.277. 
  9. ↑ E. Klarreich (2001). "Playing by quantum rules". Nature 414 (6861): 244–245. doi:10.1038/35104702. PMID 11713495. Bibcode: 2001Natur.414..244K. 
  10. ↑ J. Eisert, M. Wilkens, M. Lewenstein (1999). "Quantum games and quantum strategies". Physical Review Letters 83 (15): 3077–3080. doi:10.1103/PhysRevLett.83.3077. Bibcode: 1999PhRvL..83.3077E. 
  11. ↑ "PRL Editorial Team" (in en). 20 September 2022. https://journals.aps.org/prl/staff. 
  12. ↑ A. Acín, I. Bloch, H. Buhrman, T. Calarco, C. Eichler, J. Eisert, D. Esteve, N. Gisin, S. J. Glaser, F. Jelezko (2018). "The quantum technologies roadmap: a European community view". New Journal of Physics 20 (8): 080201. doi:10.1088/1367-2630/aad1ea. Bibcode: 1991PhRvL..67..661E. 

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