Publications

  • Exploring Imaginary Coordinates: Disparity in the Shape of Quantum State Space in Even and Odd Dimensions
    Simon Morelli, Santiago Llorens, and Jens Siewert
    e-print arXiv:2404.15179 (2024).

  • Interplay of Andreev reflection and Coulomb blockade in hybrid superconducting single electron transistors
    Laura Sobral Rey, David Christian Ohnmacht, Clemens B. Winkelmann, Jens Siewert, Wolfgang Belzig, and Elke Scheer
    Phys. Rev. Lett. 132, 057001 (2024).

  • Correlation constraints and the Bloch geometry of two qubits
    Simon Morelli, Christopher Eltschka, Marcus Huber, and Jens Siewert
    Phys. Rev. A 109, 012423 (2024).

  • On orthogonal bases in the Hilbert-Schmidt space of matrices
    Jens Siewert
    J. Phys. Commun. 6, 055014 (2022).

  • Characterizing generalized axisymmetric quantum states in d×d systems
    Marcel Seelbach Benkner, Jens Siewert, Otfried Guehne, and Gael Sentis
    Phys. Rev. A 106, 022415 (2022).

  • The shape of higher-dimensional state space: Bloch-ball analog of a qutrit
    Christopher Eltschka, Marcus Huber, Simon Morelli, and Jens Siewert
    Quantum 5, 485 (2021).

  • Maximum N-body correlations do not in general imply genuine multipartite entanglement
    Christopher Eltschka and Jens Siewert
    Quantum 4, 229 (2020).

  • Dimensionally sharp inequalities for the linear entropy
    Simon Morelli, Claude Kloeckl, Christopher Eltschka, Jens Siewert, and Marcus Huber
    Linear Algebra and its Applications 584, 294 (2020).

  • Joint Schmidt-type decomposition for two bipartite pure quantum states
    Christopher Eltschka and Jens Siewert
    Phys. Rev. A 101, 022302 (2020).

  • Bound entangled states fit for robust experimental verification
    Gael Sentís, Johannes N. Greiner, Jiangwei Shang, Jens Siewert, and Matthias Kleinmann
    Quantum 2, 113 (2018).

  • Exponentially many entanglement and correlation constraints for multipartite quantum states
    Christopher Eltschka, Felix Huber, Otfried Guehne, and Jens Siewert
    Physical Review A 98, 052317 (2018).

  • Distribution of entanglement and correlations in all finite dimensions
    Christopher Eltschka and Jens Siewert
    Quantum 2, 64 (2018).

  • Bounds on absolutely maximally entangled states from shadow inequalities, and the quantum MacWilliams identity
    Felix Huber, Christopher Eltschka, Jens Siewert, and Otfried Guehne
    J. Phys. A: Math. Theor. 51, 175301 (2018).

  • Absolutely maximally entangled states of seven qubits do not exist
    Felix Huber, Otfried Guehne, and Jens Siewert
    Phys. Rev. Lett. 118, 200502 (2017) -- open access.

  • Quantitative bound entanglement in two-qutrit states
    Gael Sentís, Christopher Eltschka, and Jens Siewert
    Phys. Rev. A 94, 020302(R) (2016).

  • Quantifying entanglement of maximal dimension in bipartite mixed states
    Gael Sentís, Christopher Eltschka, Otfried Guehne, Marcus Huber, and Jens Siewert
    Phys. Rev. Lett. 117, 190502 (2016); Erratum ibid. 122, 169901 (2019).

  • Unraveling multipartite entanglement for an important family of mixed states
    Marcus Huber and Jens Siewert
    Expert Opinion, Annalen der Physik 528, 238 (2016).

  • Thermoelectric efficiency in the linear transport regime
    Christopher Eltschka, Holger Thierschmann, Hartmut Buhmann and Jens Siewert
    physica status solidi (a) 213, 626 (2016).

  • Symmetry-assisted resonance transmission of identical particles
    Dmitri Sokolovski, Jens Siewert, and Lev M. Baskin
    Phys. Rev. A 93, 012705 (2016).

  • Partial transposition as a direct link between concurrence and negativity
    Christopher Eltschka, Géza Tóth, and Jens Siewert
    Phys. Rev. A 91, 032327 (2015).

  • Monogamy equalities for qubit entanglement from Lorentz invariance
    Christopher Eltschka and Jens Siewert
    Phys. Rev. Lett. 114, 140402 (2015).

  • Quantifying entanglement resources
    Christopher Eltschka and Jens Siewert
    Review for Special Issue "50 years of Bell's theorem"
    J. Phys. A: Math. Theor. 47, 424005, (2014).

  • Heat bath can generate all classes of three-qubit entanglement
    Christopher Eltschka, Daniel Braun, and Jens Siewert
    Phys. Rev. A 89, 062307 (2014).

  • Practical method to obtain a lower bound to the three-tangle
    Christopher Eltschka and Jens Siewert
    Phys. Rev. A 89, 022312 (2014).

  • Negativity as an Estimator of Entanglement Dimension
    Christopher Eltschka and Jens Siewert
    Phys. Rev. Lett. 111, 100503 (2013).

  • Optimal witnesses for three-qubit entanglement from Greenberger-Horne-Zeilinger symmetry
    Christopher Eltschka and Jens Siewert
    Quantum Information & Computation 13, 210 (2013).

  • A quantitative witness for Greenberger-Horne-Zeilinger entanglement
    Christopher Eltschka and Jens Siewert
    Scientific Reports 2, 942 (2012).

  • Quantifying tripartite entanglement of three-qubit generalized Werner states
    Jens Siewert and Christopher Eltschka
    Phys. Rev. Lett. 108, 230502 (2012).

  • Rescaling multipartite entanglement measures for mixed states
    Oliver Viehmann, Christopher Eltschka, Jens Siewert
    Appl. Phys. B 106, 533-541 (2012)

  • Entanglement of Three-Qubit Greenberger-Horne-Zeilinger--Symmetric States
    Christopher Eltschka and Jens Siewert
    Phys. Rev. Lett. 108, 020502 (2012).

  • Even-odd effect in the thermopower and strongly enhanced thermoelectric efficiency for superconducting single-electron transistors
    Christopher Eltschka and Jens Siewert
    e-print arXiv:1111.2629 (2011).

  • Multipartite-entanglement monotones and polynomial invariants
    Christopher Eltschka, Thierry Bastin, Andreas Osterloh, Jens Siewert
    Phys. Rev. A 85, 022301 (2012) and Erratum: ibid. 85 059903 (2012).

  • Polynomial invariants for discrimination and classification of four-qubit entanglement
    Oliver Viehmann, Christopher Eltschka, Jens Siewert
    Phys Rev A 83, 052330 (2011).

  • Invariant-based entanglement monotones as expectation values and their experimental detection
    Andreas Osterloh and Jens Siewert
    Phys. Rev. A 86, 042302 (2012).

  • Mesoscopic Shelving Readout of Superconducting Qubits in Circuit QED
    B. G. U. Englert, G. Mangano, M. Mariantoni, R. Gross, J. Siewert, and E. Solano
    Phys Rev B 81, 134514 (2010).

  • The invariant-comb approach and its relation to the balancedness of multipartite entangled states
    Andreas Osterloh and Jens Siewert
    New Journal of Physics 12, 075025 (2010), preprint quant-ph/0908.3818.

  • Magnetic circular dichroism in GaMnAs: (no) evidence for an impurity band
    Marko Turek, Jens Siewert and Jaroslav Fabian
    Phys. Rev. B 80, 161201 (R) (2009).

  • Possibility of generalized monogamy relations for multipartite entanglement beyond three qubits
    Christopher Eltschka, Andreas Osterloh, and Jens Siewert
    Phys. Rev. A 80, 032313 (2009).

  • Advanced control with a Cooper-pair box: stimulated Raman adiabatic passage and
    Fock-state generation in a nanomechanical resonator
    Jens Siewert, Tobias Brandes, and Giuseppe Falci
    Phys. Rev B 79, 024504 (2009); cond-mat/0509735.

  • Electronic and optical properties of ferromagnetic GaMnAs in a multi-band tight-binding approach
    Marko Turek, Jens Siewert and Jaroslav Fabian
    Phys. Rev. B 78, 085211 (2008).

  • Mechanical erosion by flowing lava
    Jens Siewert and Carmelo Ferlito
    Contemporary Physics 49, 43-54 (2008).

  • Sensitivity to parameters of STIRAP in a Cooper Pair Box
    G. Mangano, J. Siewert, and G. Falci
    Eur. Phys. J. Special Topics 160, 259-268 (2008).

  • Three-tangle for mixtures of generalized GHZ and generalized W states
    Christopher Eltschka, Andreas Osterloh, Jens Siewert, and Armin Uhlmann
    New Journal of Physics, 10, 043014 (2008).

  • Tangles of superpositions and the convex-roof extension
    Andreas Osterloh, Jens Siewert, and Armin Uhlmann
    Phys Rev A 77, 032310 (2008).

  • Entangled three-qubit states without concurrence and three-tangle
    Robert Lohmayer, Andreas Osterloh, Jens Siewert, and Armin Uhlmann
    Phys. Rev. Lett. 97, 260502 (2006).

  • Adiabatic passage with superconducting nanocircuits
    Jens Siewert, Tobias Brandes, and Giuseppe Falci
    Optics Communications 264, 435 (2006).

  • Entanglement monotones and maximally entangled states in multipartite qubit systems
    Andreas Osterloh and Jens Siewert
    International Journal of Quantum Information 4, 531 (2006).

  • Lava channel formation during the 2001 eruption on Mount Etna: Evidence for mechanical erosion
    Carmelo Ferlito and Jens Siewert
    Phys. Rev. Lett. 96, 028501 (2006).

  • Constructing N-qubit entanglement monotones from anti-linear operators
    Andreas Osterloh and Jens Siewert
    Phys. Rev. A 72, 012337 (2005).

  • Thermopower of a superconducting single-electron transistor
    Marko Turek, Jens Siewert, and Klaus Richter
    Phys. Rev. B 71, 220503 (R) (2005).

  • Applications of adiabatic passage in solid-state devices
    Jens Siewert and Tobias Brandes
    Advances in Solid-State Physics 44, 181 (2004).

  • Programmable networks for quantum algorithms
    Norbert Schuch and Jens Siewert
    Phys. Rev. Lett. 91, 027902 (2003).

  • A natural two-qubit gate for quantum computation using the XY interaction
    Norbert Schuch and Jens Siewert
    Phys. Rev. A 67, 032301 (2003).

  • Non-Abelian holonomies, charge pumping, and quantum computation with Josephson junctions
    Lara Faoro, Jens Siewert, and Rosario Fazio
    Phys. Rev. Lett. 90, 28301 (2003).

  • Implementation of the Four-Bit Deutsch-Jozsa Algorithm with Josephson Charge Qubits
    Norbert Schuch and Jens Siewert
    physica status solidi (b) 233 (3), 482 (2002).

  • Holonomic Quantum Computation with Josephson Networks
    Jens Siewert, Lara Faoro, and Rosario Fazio
    physica status solidi (b) 233 (3), 490 (2002).

  • Implementation of the Deutsch-Jozsa algorithm with Josephson charge qubits
    Jens Siewert and Rosario Fazio
    Journal of Modern Optics 49 (8), 1245 (2002).

  • Interacting electrons in parabolic quantum dots: energy levels, addition energies, and charge distributions
    Michael Schreiber, Jens Siewert, and Thomas Vojta
    Int. Journal of Mod. Phys. B15, 3641 (2001).

  • Quantum algorithms for Josephson networks
    Jens Siewert and Rosario Fazio
    Phys. Rev. Lett. 87, 257905 (2001).

  • Geometric quantum computation with Josephson qubits
    Giuseppe Falci, Rosario Fazio, G. Massimo Palma, Jens Siewert, and Vlatko Vedral
    Physica C 352, 110 (2001).

  • Coherent oscillations in a Cooper-pair box
    Mahn-Soo Choi, Rosario Fazio, Jens Siewert, and Christoph Bruder
    Europhys. Lett. 53, 251 (2001).

  • Detection of geometric phases in superconducting nanocircuits
    Giuseppe Falci, Rosario Fazio, G. Massimo Palma, Jens Siewert, and Vlatko Vedral
    Nature 407, 355 - 358 (2000).

  • Quantum Computation with Josephson Qubits
    G. Massimo Palma, Giuseppe Falci, Rosario Fazio, Jens Siewert, and Vlatko Vedral
    R. Trapl (ed.), Cybernetics and Systems 2000, (Austrian Society for Cybernetic Studies, Vienna, 2000).

  • Current-voltage characteristics of NSS transistors
    Rosario Fazio, Gerd Schön, and Jens Siewert
    Physica B 284 - 288, 1828 - 1829 (2000).

  • Leakage and fidelity of real qubits
    R. Fazio, G.M. Palma, E. Sciacca, and J. Siewert
    Physica B 284 - 288, 1822 - 1823 (2000).

  • Aspects of Qubit Dynamics in the Presence of Leakage,
    Jens Siewert, Rosario Fazio, G. Massimo Palma, and Emilio Sciacca
    J. Low Temp. Phys. 18, 795 - 804 (2000).

  • Fidelity and leakage of Josephson qubits
    Rosario Fazio, G. Massimo Palma, and Jens Siewert
    Phys. Rev. Lett. 83, 5385 - 5388 (1999).

  • Two-quasiparticle Tunneling and Subgap Structure in All-Superconducting Single-Electron Transistors
    Jens Siewert
    Adv. in Sol. State Phys. 39, 333 - 340 (1999).

  • Two-quasiparticle tunneling in all-superconducting single-electron transistors
    Jens Siewert
    Europhys. Lett. 46, 768 - 774 (1999).

  • A generalized model of non-thermal noise in the electromagnetic environment of small-capacitance tunnel junctions
    Jens Siewert, Yuli V. Nazarov, and Giuseppe Falci
    Europhys. Lett. 38, 365 - 370 (1997).

  • Resonant Cooper-pair tunneling in voltage-biased superconducting single-electron transistors
    Jens Siewert and Gerd Schön
    Czech. J. Phys. 46, S 4, 2397 - 2398 (1996).

  • Charge transport in voltage-biased superconducting SET transistors
    Jens Siewert and Gerd Schön
    Phys. Rev. B 54, 7421 -7424 (1996).

  • Parity effects and higher-order tunneling in superconducting SET transistors
    Jens Siewert, Gerd Schön, and Andrei D. Zaikin
    in: H. A. Cerdeira et al. (eds), Quantum Dynamics of Submicron Structures, (Kluwer Academic Publishers, 1995).

  • Parity effects in superconducting SET transistors
    Gerd Schön, Jens Siewert, and Andrei D. Zaikin
    Physica B 203, 340 - 346 (1994).

  • Josephson effect in low-capacitance superconductor-normal-superconductor systems
    Rüdiger Bauernschmitt, Jens Siewert, Yuli V. Nazarov, and Arkadi A. Odintsov
    Phys. Rev. B 49, 4076 - 4081 (1994).

  • Fast and slow dynamics in the one-dimensional Phi^4 lattice model: A molecular-dynamics study
    Sergej Flach and Jens Siewert
    Phys. Rev. B 47, 14910 - 14922 (1993).

  • Dynamical scaling properties of a one-dimensional Phi^4 lattice model -- comparison with mode-coupling theory
    Sergej Flach and Jens Siewert
    J. Phys. Cond. Matter 4, L363 - L370 (1992).

  • A study of long time correlations in finite Phi^4 systems (d = 1, 2) by use of molecular dynamics
    Sergej Flach, Jens Siewert, Rolf Siems, and Jürgen Schreiber
    Ferroelectrics 24, 173 - 178 (1991).

  • A molecular dynamics study of long-time correlations in a model of structural phase transitions -- comparison with a mode-coupling approximation
    Sergej Flach, Jens Siewert, Rolf Siems, and Jürgen Schreiber
    J. Phys. Cond. Matter 3, 7061 - 7067 (1991).

  • Long time relaxation in high-Tc superconducting BiSCO compounds
    Sven Sahling and Jens Siewert
    Sol. State Communications 75, 237 - 241 (1990).

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