Publications        [arXiv]    [google scholar]

Preprints

(iv) Y. Guryanova, N. Friis, and M. Huber,
      Ideal Projective Measurements Have an Infinite Energy Cost,
      e-print arXiv:1805.11899 [quant-ph] (2018).

(iii) G. Vitagliano, C. Klöckl, M. Huber, and N. Friis,
      Trade-off Between Work and Correlations in Quantum Thermodynamics,
      eprint arXiv:1803.06884 [quant-ph] (2018).

(ii)  J. Bavaresco, N. Herrera Valencia, C. Klöckl, M. Pivoluska, N. Friis, M. Malik, and M. Huber,
      Two measurements are sufficient for certifying high-dimensional entanglement,
      e-print arXiv:1709.07344 [quant-ph] (2017).

(i)  T. Sriarunothai, S. Wölk, G. S. Giri, N. Friis, V. Dunjko, H. J. Briegel, and C. Wunderlich,
     Speeding-up the decision making of a learning agent using an ion trap quantum processor,
     e-print arXiv:1709.01366 [quant-ph] (2017).

Journal Articles

(25)  N. Friis and M. Huber,
        Precision and Work Fluctuations in Gaussian Battery Charging,
        Quantum 2, 61 (2018) [arXiv:1708.00749].

(24) N. Friis*, O. Marty*, C. Maier, C. Hempel, M. Holzäpfel, P. Jurcevic, M. B. Plenio, M. Huber, C. Roos, R. Blatt, and B. Lanyon,
        Observation of Entangled States of a Fully Controlled 20-Qubit System,
        Phys. Rev. X 8, 021012 (2018) [arXiv:1711.11092].
        (*These authors have contributed equally to this work.)

(23)  H. Poulsen Nautrup, N. Friis, and H. J. Briegel,
        Fault-tolerant interface between quantum memories and quantum processors,
        Nat. Commun. 8, 1321 (2017) [arXiv:1609.08062].

(22) N. Friis, D. Orsucci, M. Skotiniotis, P. Sekatski, V. Dunjko, H. J. Briegel, and W. Dür,
       Flexible resources for quantum metrology,
       New J. Phys. 19, 063044 (2017) [arXiv:1610.09999]
       (selected by the editors of New Journal of Physics for inclusion in the ‘Highlights of 2017’ collection).

(21) N. Friis, S. Bulusu, and R. A. Bertlmann,
       Geometry of two-qubit states with negative conditional entropy,
       J. Phys. A: Math. Theor. 50, 125301 (2017) [arXiv:1609.04144].

(20) E. G. Brown, N. Friis, and M. Huber,
       Passivity and practical work extraction using Gaussian operations,
        New J. Phys. 18, 113028 (2016) [arXiv:1608.04977].

(19) N. Friis,
       Unlocking fermionic mode entanglement,
       New J. Phys. 18, 061001 (2016),
       Perspective article on Dasenbrook et al., New J. Phys. 18, 043036 (2016).

(18) N. Friis, M. Huber, and M. Perarnau-Llobet,
       Energetics of correlations in interacting systems,
       Phys. Rev. E 93, 042135 (2016) [arXiv:1511.08654].

(17) N. Friis,
       Reasonable fermionic quantum information theories require relativity,
       New J. Phys. 18, 033014 (2016) [arXiv:1502.04476].

(16) N. Friis, A. A. Melnikov, G. Kirchmair, and H. J. Briegel,
       Coherent controlization using superconducting qubits,
       Sci. Rep. 5, 18036 (2015) [arXiv:1508.00447].
.
(15) N. Friis, M. Skotiniotis, I. Fuentes, and W. Dür,
       Heisenberg scaling in Gaussian quantum metrology,
       Phys. Rev. A 92, 022106 (2015) [arXiv:1502.07654]. 

(14) D. E. Bruschi*, M. Perarnau-Llobet*, N. Friis*, K. V. Hovhannisyan, and M. Huber,
       The thermodynamics of creating correlations: Limitations and optimal protocols,
       Phys. Rev. E 91, 032118 (2015) [arXiv:1409.4647].
       (*These authors have contributed equally to this work.)

(13) V. Dunjko, N. Friis, and H. J. Briegel,
       Quantum-enhanced deliberation of learning agents using trapped ions,
       New J. Phys. 17, 023006 (2015) [arXiv:1407.2830].

(12) N. Friis, V. Dunjko, W. Dür, and H. J. Briegel,
       Implementing quantum control for unknown subroutines,
       Phys. Rev. A 89, 030303(R) (2014) [arXiv:1401.8128].

(11) D. E. Bruschi, N. Friis, I. Fuentes, and S. Weinfurtner,
       On the robustness of entanglement in analogue gravity systems,
        New J. Phys. 15, 113016 (2013) [arXiv:1305.3867].

(10) N. Friis, A. R. Lee, and J. Louko,
       Scalar, spinor, and photon fields under relativistic cavity motion,
       Phys. Rev. D 88, 064028 (2013) [arXiv:1307.1631].

(9)  N. Friis, A. R. Lee, and D. E. Bruschi,
       Fermionic mode entanglement in quantum information,
       Phys. Rev. A 87, 022338 (2013) [arXiv:1211.7217].

(8)  N. Friis, A. R. Lee, K. Truong, C. Sabín, E. Solano, G. Johansson, and I. Fuentes,
      Relativistic Quantum Teleportation with Superconducting Circuits,
      Phys. Rev. Lett. 110, 113602 (2013) [arXiv:1211.5563].

(7)  N. Friis, M. Huber, I. Fuentes, and D. E. Bruschi,
       Quantum gates and multipartite entanglement resonances realized by non-uniform cavity motion,
       Phys. Rev. D 86, 105003 (2012) [arXiv:1207.1827].

(6)  N. Friis and I. Fuentes,
       Entanglement generation in relativistic quantum fields,
       J. Mod. Opt. 60, 22 (2013) [arXiv:1204.0617].

(5)  N. Friis, D. E. Bruschi, J. Louko, and I. Fuentes,
       Motion generates entanglement,
       Phys. Rev. D 85, 081701(R) (2012) [arXiv:1201.0549].

(4)  N. Friis, A. R. Lee, D. E. Bruschi, and J. Louko,
       Kinematic entanglement degradation of fermionic cavity modes,
       Phys. Rev. D 85, 025012 (2012) [arXiv:1110.6756].

(3)  N. Friis, P. Köhler, E. Martín-Martínez, and R. A. Bertlmann,
       Residual entanglement of accelerated fermions is not nonlocal,
       Phys. Rev. A 84, 062111 (2011) [arXiv:1107.3235].

(2)  M. Huber, N. Friis, A. Gabriel, C. Spengler, and B. C. Hiesmayr,
       Lorentz invariance of entanglement classes in multipartite systems,
       Europhys. Lett. 95, 20002 (2011) [arXiv:1011.3374].

(1)  N. Friis, R. A. Bertlmann, M. Huber, and B. C. Hiesmayr,
       Relativistic entanglement of two massive particles,
       Phys. Rev. A 81, 042114 (2010) [arXiv:0912.4863].

Theses

• N. Friis, Cavity mode entanglement in relativistic quantum information, Ph.D. thesis, University of Nottingham, 2013 [arXiv:1311.3536].
• N. Friis, Relativistic Effects in Quantum Entanglement, Diploma thesis, University of Vienna, 2010 [arXiv:1003.1874].

Lecture Notes

• R. A. Bertlmann and N. Friis, "Theoretical Physics T2 - Quantum Mechanics" (Lecture Notes, University of Vienna, 2010)

Posters

• "Quantum Entanglement, the Universe and Everything" (10MB), group poster, University of Vienna (2010)
• "Residual entanglement of accelerated fermions is not nonlocal" (presented at the RQI-N 2011 workshop at the Instituto de Física Fundamental, CSIC in Madrid)
• "Shaking Entanglement - Teleportation in Motion" (presented at the CEQIP Workshop in Valtice, Czech Republic in June 2013)
• "Implementing Quantum Control for Unknown Subroutines" (presented at the CEQIP workshop in Znojmo, Czech Republic, 2014)
• "Thermodynamics and Energetics of Creating Correlations" (presented at the 3rd Seefeld Quantum Information Workshop 2016)
  

Selected Presentations

• "Flexible resources for quantum metrology", April 26th, 2017, ZIF Bielefeld, Germany
  
• "Fermions are not Qubits - musings about fermionic mode entanglement", June 15th, 2016, IQOQI Vienna
• "Heisenberg scaling in relativistic quantum metrology", July 2015, RQI-N Workshop, Dartmouth College, Hanover (NH), USA
• "The thermodynamics of creating correlations - Limitations and optimal protocols", October 2014 [long version] [short version]
• "Quantum-enhanced deliberation of learning agents using trapped ions", September 15th, 2014, DICE workshop, Castiglioncello, Tuscany, Italy
• "Robustness of entanglement in analogue gravity", Feburary 28th, 2014, ECT*, Trento, Italy
• "Quantum information tasks with relativistically rigid cavities in non-uniform motion", October 9th, 2013, QI&C seminar, IQOQI Innsbruck
• "On the robustness of entanglement in analogue gravity", June 25th, 2013, RQI-N 2013 workshop, University of Nottingham
• "Lorentz invariance in quantum information ... a scrutiny", June 3rd, 2011, CEQIP workshop in Znojmo, Czech Republic
• "Residual entanglement of accelerated fermions is not nonlocal", September 6th, 2011, RQI-N workshop in Madrid, Spain
• "Shaking Entanglement - quantum fields in non-uniformly moving cavities", February 9th, 2012, Mathematical Physics Seminar, University of York
• "Entanglement generation in relativistic quantum fields" (flash video), June 28th, 2012, RQI-N 2012 at Perimeter Institute, Waterloo, Ontario, Canada