Jens Siewert

Ikerbasque Research Professor, UPV/EHU

Department of Physical Chemistry, Faculty of Sciences and Technology at UPV/EHU in Leioa.

Research line:

quantum dynamics and transport in mesoscopic systems, quantum information theory.

Research experience in centres in United States, Italy and Germany.

Doctor in physics from University of Karlsruhe (Germany), 1996.

2024

Article / Exploring Imaginary Coordinates: Disparity in the Shape of Quantum State Space in Even and Odd Dimensions

arXiv:2404.15179

Simon Morelli and Jens Siewert

Article / Interplay of Andreev Reflection and Coulomb Blockade in Hybrid Superconducting Single-Electron Transistors

Physical Review Letters

Sobral Rey, L.; Ohnmacht, D.C.; Winkelmann, C.B.; Siewert, J.; Belzig, W.; Scheer, E.

Article / Correlation constraints and the Bloch geometry of two qubits

Physical Review A

Morelli, S.; Eltschka, C.; Huber, M.; Siewert, J.

2022

Article / Characterizing generalized axisymmetric quantum states in d×d systems

Physical Review A

Benkner, M.S.; Siewert, J.; Gühne, O.; Sentís, G.

Article / On orthogonal bases in the Hilbert-Schmidt space of matrices

Journal of Physics Communications

Siewert, J.

2021

Article / The shape of higher-dimensional state space: Bloch-ball analog for a qutrit

Quantum

Eltschka, C.; Huber, M.; Morelli, S.; Siewert, J.

2020

Article / Maximum N-body correlations do not in general imply genuine multipartite entanglement

Quantum

Eltschka, C.; Siewert, J.

Article / Joint Schmidt-type decomposition for two bipartite pure quantum states

Physical Review A

Eltschka, C.; Siewert, J.

Article / Dimensionally sharp inequalities for the linear entropy

Linear Algebra and Its Applications

Morelli, S.; Klöckl, C.; Eltschka, C.; Siewert, J.; Huber, M.

2018

Article / Bound entangled states fit for robust experimental verification

Quantum

Sentís, G.; Greiner, J.N.; Shang, J.; Siewert, J.; Kleinmann, M.

Article / Exponentially many entanglement and correlation constraints for multipartite quantum states

Physical Review A

Eltschka, C.; Huber, F.; Gühne, O.; Siewert, J.

Article / Distribution of entanglement and correlations in all finite dimensions

Quantum

Eltschka, C.; Siewert, J.

Article / Bounds on absolutely maximally entangled states from shadow inequalities, and the quantum MacWilliams identity

Journal of Physics A: Mathematical and Theoretical

Huber, F.; Eltschka, C.; Siewert, J.; Gühne, O.

2017

Article / Absolutely Maximally Entangled States of Seven Qubits Do Not Exist

Physical Review Letters

Huber, F.; Gühne, O.; Siewert, J.

2016

Article / Quantifying Entanglement of Maximal Dimension in Bipartite Mixed States

Physical Review Letters

Sentís, G.; Eltschka, C.; Gühne, O.; Huber, M.; Siewert, J.

Article / Quantitative bound entanglement in two-qutrit states

Physical Review A

Sentís, G.; Eltschka, C.; Siewert, J.

Article / Thermoelectric efficiency in the linear transport regime

Physica Status Solidi (A) Applications and Materials Science

Eltschka, C.; Thierschmann, H.; Buhmann, H.; Siewert, J.

Article / Symmetry-assisted resonance transmission of noninteracting identical particles

Physical Review A

Sokolovski, D.; Siewert, J.; Baskin, L.M.

Note / Unraveling multipartite entanglement for an important family of mixed states

Annalen der Physik

Huber, M.; Siewert, J.

2015

Article / Monogamy equalities for qubit entanglement from Lorentz invariance

Physical Review Letters

Eltschka, C.; Siewert, J.

2014

Article / Heat bath can generate all classes of three-qubit entanglement

Physical Review A - Atomic, Molecular, and Optical Physics

Eltschka, C.; Braun, D.; Siewert, J.

Article / Practical method to obtain a lower bound to the three-tangle

Physical Review A - Atomic, Molecular, and Optical Physics

Eltschka, C.; Siewert, J.

Review / Quantifying entanglement resources

Journal of Physics A: Mathematical and Theoretical

Eltschka, C.; Siewert, J.

2013

Article / Optimal witnesses for three-qubit entanglement from Greenberger-Horne-Zeilinger symmetry

Quantum Information and Computation

Christopher Eltschka and Jens Siewert

Article / Negativity as an estimator of entanglement dimension

Physical Review Letters

Eltschka, C.; Siewert, J.

Article / Optimal class-specific witnesses for three-qubit entanglement from Greenberger-Horne-Zeilinger symmetry

Quantum Information and Computation

Eltschka, C.; Siewert, J.

2012

Article / A quantitative witness for Greenberger-Horne-Zeilinger entanglement

Scientific Reports

Eltschka, C.; Siewert, J.

Article / Invariant-based entanglement monotones as expectation values and their experimental detection

Physical Review A - Atomic, Molecular, and Optical Physics

Osterloh, A.; Siewert, J.

Article / Quantifying tripartite entanglement of three-Qubit generalized Werner States

Physical Review Letters

Siewert, J.; Eltschka, C.

Article / Multipartite-entanglement monotones and polynomial invariants

Physical Review A - Atomic, Molecular, and Optical Physics

Eltschka, C.; Bastin, T.; Osterloh, A.; Siewert, J.

Article / Entanglement of three-qubit Greenberger-Horne-Zeilinger-symmetric states

Physical Review Letters

Eltschka, C.; Siewert, J.

2011

Article / Even-odd effect in the thermopower and strongly enhanced thermoelectric efficiency for superconducting single-electron transistors

http://arxiv.org/abs/1111.2629

Christopher Eltschka, Jens Siewert

Article / Polynomial invariants for discrimination and classification of four-qubit entanglement

Physical Review A - Atomic, Molecular, and Optical Physics

Viehmann, O.; Eltschka, C.; Siewert, J.

2010

Article / Mesoscopic shelving readout of superconducting qubits in circuit quantum electrodynamics

Physical Review B - Condensed Matter and Materials Physics

Englert, B.G.U.; Mangano, G.; Mariantoni, M.; Gross, R.; Siewert, J.; Solano, E.

Article / The invariant-comb approach and its relation to the balancedness of multipartite entangled states

New Journal of Physics

Osterloh, A.; Siewert, J.

2023

1st trimester, Master Program "Quantum Science and Technology", academic year 2023/24: "Quantum Statistical Mechanics" (shared with Prof Maria Blanco), 2.5 credit points

2022

1st trimester, Master Program "Quantum Science and Technology", academic year 2022/23: "Quantum Statistical Mechanics" (shared with Prof Asier Eiguren), 2.5 credit points

2021

1st trimester, Master Program "Quantum Science and Technology", academic year 2021/22: "Quantum Statistical Mechanics" (shared with Prof Manuel Valle), 2.5 credit points

2020

1st trimester, Master Program "Quantum Science and Technology", academic year 2020/21: "Quantum Statistical Mechanics" (shared with Prof Manuel Valle), 2.5 credit points

2019

2nd trimester of Master Program "Quantum Science and Technology", academic year 2018/2019: Lecture series on "Quantum Technologies" (shared with L. Lamata) 2.0 credit points

1st trimester, Master Program "Quantum Science and Technology", academic year 2019/20 Lecture series on "Quantum Statistics and Condensed Matter" (shared with Prof Manuel Valle), 2.5 credit points

2018

2nd trimester of master course "Quantum Science and Technologies", academic year 2017/2018: Lecture series on "Quantum Technologies" (shared with L. Lamata) 2.0 credit points

2017

2nd trimester of master course "Quantum Science and Technologies", academic year 2016/2017: Lecture series on "Quantum Technologies" (shared with E. Solano and E. Ya. Sherman) 1.3 credit points

2016

2nd trimester of master course "Quantum Science and Technologies", academic year 2015/2016: Lecture series on "Quantum Technologies" (shared with E. Solano and E. Ya. Sherman) 1.3 credit points

2015

2nd trimester of master course "Quantum Science and Technologies", academic year 2014/2015: Lecture series on "Quantum Technologies" (shared with E. Solano and E. Ya. Sherman)

2013

2nd trimester of master course "Quantum Science and Technologies", academic year 2012/2013: Lecture series on "Quantum Technologies" (shared with E. Solano and E. Ya. Sherman)

2024

Oral presentation | Evidence for multiple Andreev reflection (MAR) in a hy- brid superconducting single-electron transistor

Spring Meeting of the German Physical Society (Condensed Matter Section) , 17-22 March, 2024 - Oral presentation

Jens Siewert , Laura Sobral Rey , David C. Ohnmacht , Clemens B. Winkelmann , Wolfgang Belzig , and Elke Scheer

Oral presentation | Concurrence of entangled states in d × d dimensions with relaxed axisymmetry

Spring Meeting of the German Physical Society (Quantum Information Section) , 17-22 March, 2024 - Oral presentation

Juan Arnaudas and Jens Siewert

2012

Conference Paper | Rescaling multipartite entanglement measures for mixed states

Applied Physics B: Lasers and Optics - Conference Paper

Viehmann, O.; Eltschka, C.; Siewert, J.