Creating and sharing knowledge for telecommunications
... Nikola Paunkovic

Researcher

Nikola Paunkovic

Academic position: Researcher
Joining date: 31-12-2006
Roles in IT: Researcher
Thematic Line: Basic Sciences and Enabling Technologies
Group: Security and Quantum Information - Lx

Email: Send Email
Address: IT – Lisboa
Instituto Superior Técnico - Torre Norte - Piso 10
Av. Rovisco Pais, 1
1049 - 001 Lisboa
Tel: +351 21 841 84 54
Fax: +351 21 841 84 72


Scientific Achievements

  • PhD, Oxford University, 06-02-2005
As Supervisor
As Co-supervisor
  • P. Mateus, N. Paunkovic, J. Rodrigues, A. Souto, Enhancing privacy with quantum networks, Chapter in, Proceedings of CMS 2014, Springer, Berlin, 2014
  • N. Paunkovic, V. Vieira, Macroscopic thermal entanglement, Chapter in, Strongly Correlated Systems, Coherence and Entanglement, World Scientific Publishing, Singapore, 2007
  • H. S. Silva, N. Paunkovic, B. Mera, Interferometric geometry from symmetry-broken Uhlmann gauge group with applications to topological phase transitions, Physical Review B - Condensed Matter and Materials Physics, Vol. 103, No. 8, pp. 085127-01 - 085127-14, February, 2021,
    | Abstract
    | BibTex
  • M. Lemus, M. F. Ramos, P. Yadav, N. A. Silva, N. J. Muga, A. Souto, N. Paunkovic, P. Mateus, A. N. Pinto, Generation and Distribution of Quantum Oblivious Keys for Secure Multiparty Computation, Applied Sciences (Switzerland), Vol. 10, No. 12, pp. 4080 - 4080, June, 2020,
    | Abstract
    | BibTex
  • N. Paunkovic, MV Vojinovic, Causal orders, quantum circuits and spacetime: distinguishing between definite and superposed causal orders, quantum, Vol. 4, No. 5, pp. 275 - 275, May, 2020 | BibTex
  • M. Lemus, J. Beirão, N. Paunkovic, A. M. Carvalho, P. Mateus, Information-Theoretical Criteria for Characterizing the Earliness of Time-Series Data, Entropy, Vol. 22, No. 1, pp. 49 - 49, January, 2020 | BibTex
  • F. P. Pipa, N. Paunkovic, MV Vojinovic, Entanglement-induced deviation from the geodesic motion in quantum gravity, Journal of Cosmology and Astroparticle Physics, Vol. 2019, No. 1, pp. 1 - 2, September, 2019 | BibTex
  • P. Yadav, P. Mateus, N. Paunkovic, A. Souto, Quantum contract signing with entangled pairs., Entropy, Vol. 21, No. 9, pp. 821 - 821, August, 2019 | BibTex
  • S. T. Amin, B. Mera, N. Paunkovic, V. Vieira, Information geometric analysis of long range topological superconductors, Journal of Physics Condensed Matter, Vol. in print, No. 1, pp. 1 - 1, August, 2019 | BibTex
  • N. Paunkovic, L. J. Ju, M. Yang, W.-J. C. Chu, Z. Cao, Creating photonic GHZ and W states via quantum walk, Quantum Information Processing, Vol. 18, No. 6, pp. 176 - 176, April, 2019,
    | Abstract
    | BibTex
  • P.D. Sacramento, B. Mera, N. Paunkovic, Vanishing k-space fidelity and phase diagram’s bulk-edge-bulk correspondence, Annals of Physics, Vol. 401, No. -, pp. 40 - 59, December, 2018,
    | Abstract
    | BibTex
  • B. Mera, S. T. Amin, C. V. Vlachou, N. Paunkovic, V. Vieira, Fidelity and Uhlmann connection analysis of topological phase transitions in two dimensions, Physical Review B - Condensed Matter and Materials Physics, Vol. 98, No. 24, pp. 245141-1 - 245141-19, December, 2018,
    | Abstract
    | BibTex
  • C. V. Vlachou, W. Krawec, P. Mateus, N. Paunkovic, A. Souto, Quantum key distribution with quantum walks, Quantum Information Processing, Vol. 17, No., pp. 288 - 288, August, 2018 | BibTex
  • N. Paunkovic, MV Vojinovic, Gauge protected entanglement between gravity and matter, Classical and Quantum Gravity, Vol. 35, No. 18, pp. 185015 -, August, 2018 | BibTex
  • B. Mera, C. V. Vlachou, N. Paunkovic, V. Vieira, O. Viyuela, Dynamical phase transitions at finite temperature from fidelity and interferometric Loschmidt echo induced metrics, Physical Review B - Condensed Matter and Materials Physics, Vol. 97, No. 9, pp. 094110-1 - 094110-15, March, 2018,
    | Abstract
    | BibTex
  • X. Li, M. Yang, N. Paunkovic, D. Li, Z. Cao, Entanglement swapping via three-step quantum walk-like protocol, Physics Letters, Section A: General, Atomic and Solid State Physics, Vol. 381, No. 46, pp. 3875 - 3879, December, 2017 | BibTex
  • B. Mera, C. V. Vlachou, N. Paunkovic, V. Vieira, Boltzmann–Gibbs states in topological quantum walks and associated many-body systems: fidelity and Uhlmann parallel transport analysis of phase transitions, Journal of Physics A: Mathematical and Theoretical, Vol. 50, No. 36, pp. 365302 - 365302-17, August, 2017,
    | Abstract
    | BibTex
  • B. Mera, C. V. Vlachou, N. Paunkovic, V. Vieira, Uhlmann connection in fermionic systems undergoing phase transitions, Physical Review Letters, Vol. 119, No. 1, pp. 015702 - 015702-6, July, 2017,
    | Abstract
    | BibTex
  • J. Rodrigues, P. Mateus, N. Paunkovic, A. Souto, Oblivious transfer based on single-qubit rotations, Journal of Physics A: Mathematical and Theoretical, Vol. 50, No. 20, pp. 205301 - 205301, April, 2017 | BibTex
  • J. Rodrigues, P. Mateus, N. Paunkovic, A simulator for discrete quantum walks on lattices, International Journal of Modern Physics C, Vol. 1, No. 1750055, pp. 1 - 21, March, 2017 | BibTex
  • R. Loura Loura, D. Arsenović, N. Paunkovic, D. Popovic, S. Prvanović, Security of two-state and four-state practical quantum bit-commitment protocols, Physical Review A - Atomic, Molecular, and Optical Physics, Vol. 94, No. 1, pp. 062335 - 062335, December, 2016 | BibTex
  • A. Almeida, A. Stojanovic, N. Paunkovic, R. Loura Loura, N. J. Muga, N. A. Silva, P. Mateus, P.S André, A. N. Pinto, Implementation of a two-state quantum bit commitment protocol in optical fibers, Journal of Optics, Vol. 18, No. 1, pp. 015202 - 015202, January, 2016,
    | Abstract
    | BibTex
  • Haozhen Situ, D. Qiu Qiu, P. Mateus, N. Paunkovic, Secure N-dimensional simultaneous dense coding and applications, International Journal of Quantum Information, Vol. 13, No. 6, pp. 155051-1 - 155051-25, December, 2015 | BibTex
  • C. V. Vlachou, P. Mateus, J. Rodrigues, N. Paunkovic, A. Souto, Quantum walk public-key cryptographic system, International Journal of Quantum Information, Vol. 13, No. 6, pp. 1550050-1 - 1550050-10, December, 2015 | BibTex
  • A. Souto, P. Mateus, P. Adão, N. Paunkovic, Reply to “Comment on ‘Bit-string oblivious transfer based on quantum state computational distinguishability’ ”, Physical Review A - Atomic, Molecular, and Optical Physics, Vol. 92, No. 4, pp. 046302 - 046312, October, 2015,
    | Abstract
    | BibTex
  • A. Souto, P. Mateus, P. Adão, N. Paunkovic, Bit-string oblivious transfer based on quantum state computational distinguishability, Physical Review A - Atomic, Molecular, and Optical Physics, Vol. 91, No. 1, pp. 042306 - 042306, April, 2015,
    | Abstract
    | BibTex
  • R. Loura Loura, A. Almeida, P.S André, A. N. Pinto, P. Mateus, N. Paunkovic, Noise and measurement errors in a practical two-state quantum bit commitment protocol, Physical Review A - Atomic, Molecular, and Optical Physics, Vol. 89, No. 5, pp. 052336-1 - 052336-15, May, 2014,
    | Abstract
    | BibTex
  • P.D. Sacramento, N. Paunkovic, V. Vieira, Fidelity spectrum and phase transitions of quantum systems, Physical Review A - Atomic, Molecular, and Optical Physics, Vol. 84, No. 6, pp. 062318 - 062318, December, 2011 | BibTex
  • N. Paunkovic, J. Bouda, P. Mateus, Fair and Optimistic Quantum Contract Signing, Physical Review A - Atomic, Molecular, and Optical Physics, Vol. 84, No. 6, pp. 062331 - 062331, December, 2011 | BibTex
  • J. Bouda, P. Mateus, N. Paunkovic, J. Rasga, On the power of quantum tamper-proof hardware, International Journal of Quantum Information, Vol. 6, No. 2, pp. 219 - 236, February, 2008 | BibTex
  • N. Paunkovic, V. Vieira, Macroscopic distinguishability between quantum states defining different phases of matter: Fidelity and the Uhlmann geometric phase, Physical review. E, Vol. 77, No. -, pp. - - -, January, 2008 | BibTex
  • N. Paunkovic, P.D. Sacramento, P. Nogueira, V. Vieira, V. K. Dugaev, Fidelity between partial states as signature of quantum phase transitions, Physical Review A - Atomic, Molecular, and Optical Physics, Vol. 77, No. -, pp. 052302 - 052302, January, 2008 | BibTex
  • Y. Omar, N. Paunkovic, L. Sheridan, S. Bose, Quantum walk on a line with two entangled particles, Physical Review A - Atomic, Molecular, and Optical Physics, Vol. 74, No. 1, pp. 042304 - 042304, October, 2006 | BibTex
  • L. Sheridan, N. Paunkovic, Y. Omar, S. Bose, Discrete time quantum walk on a line with two particles, International Journal of Quantum Information, Vol. 4, No. 3, pp. 573 - 583, January, 2006 | BibTex
  • P. Zanardi, N. Paunkovic, Ground state overlap and quantum phase transitions, Physical review. E, Vol. 74, No. -, pp. 031123 - 031123, January, 2006 | BibTex
  • C. Brukner, N. Paunkovic, T. Rudolph, V. Vedral, Entanglement-assisted orientation in space, International Journal of Quantum Information, Vol. 4, No. 2, pp. 219 - 236, January, 2006 | BibTex
  • S. Bose, A. Ekert, Y. Omar, N. Paunkovic, V. Vedral, Optimal state discrimination using particle statistics, Physical Review A - Atomic, Molecular, and Optical Physics, Vol. 68, No. -, pp. 052309 - 052309, January, 2003 | BibTex
  • Y. Omar, N. Paunkovic, S. Bose, V. Vedral, Spin-space entanglement transfer and quantum statistics, Physical Review A - Atomic, Molecular, and Optical Physics, Vol. 65, No. -, pp. 062305 - 062305, January, 2002 | BibTex
  • N. Paunkovic, Y. Omar, S. Bose, V. Vedral, Entanglement concentration using quantum statistic, Physical Review Letters, Vol. 88, No. -, pp. 187903 - 187903, January, 2002 | BibTex
  • V. Bozin, M. Hruska, N. Paunkovic, F. Herbut, On statistical and deterministic quantum teleportation, International Journal of Modern Physics A, Vol. 31, No. -, pp. 4403 - 4403, January, 1998 | BibTex
  • N. Paunkovic, Quantum cryptography providing privacy to common citizens, 2017

Currently running projects5

Acronym Name Funding Agency Start date Ending date
BlackHolePT Black holes, holography and phase transitions FCT 07-09-2020 06-09-2022
QuantumMining Quantum Primitives for Privacy Preserving Data Mining FCT 01-09-2018 28-02-2022
QuantumPrime Generation of Prime Numbers Enabled by Quantum Technologies for Cryptographic Applications FCT 01-02-2021 31-01-2024
QUESTS QUANTUM ENABLED SECURITY AND PRIVACY IN VEHICULAR NETWORKS FCT 01-02-2020 31-01-2022
QuRunner Development of a quantum random number generator network server IT 01-02-2020 31-01-2022

Closed Projects4

Acronym Name Funding Agency Start date Ending date
CV-Quantum Improving Security and Capacity Using Continuous Variables Quantum Communications IT/LA 01-02-2014 01-06-2016
P-Quantum Practical Quantum Communications IT/LA 01-09-2011 01-08-2013
QSec Quantum Security FCT/PTDC 01-11-2007 01-10-2009
QuanLog Logic in Quantum Computation and Information FCT/POCI 01-01-2005 01-12-2007
  • N. Paunkovic, Deviation from the geodesic motion due to the entanglement between gravity and matter. CeFEMA Physics Forum, IST, Lisbon, Portugal, 04 December 2018, Invited Talks, Invited Talk, 01-12-2018
  • N. Paunkovic, MV Vojinovic, Gauge protected entanglement between gravity and matter, N. Paunković and M. Vojinović, RQI-N – Relativistic Quantum Information North, Vienna, Austria, September 24-27, 2018, Tutorial, Poster, 01-09-2018 | Link
  • N. Paunkovic, MV Vojinovic, Quantum gates, timelike nonlocality and causality in quantum gravity, N. Paunković and M. Vojinović, RQI-N – Relativistic Quantum Information North, Vienna, Austria, September 24 - 27, 2018, Tutorial, Poster, 01-09-2018 | Link
  • N. Paunkovic, MV Vojinovic, The effects of entanglement between gravity and matter on the motion of localized massive particles, F. Pipa, N. Paunković and M. Vojinović, RQI-N – Relativistic Quantum Information North, Vienna, Austria, September 24-27, 2018, Tutorial, Poster, 01-09-2018 | Link
  • N. Paunkovic, Information geometry of the space of quantum states and phase transitions. Belgrade school of quantum mechanics workshop, Faculty of physics, University of Belgrade, Belgrade, Serbia, 22 March 2018, Invited Talks, Invited Talk, 01-03-2018
  • N. Paunkovic, Symmetry protected entanglement between gravity and matter. Quantum Physics and Gravity, Erwin Schroedinger International Institute for Mathematics and Physics, Vienna, Austria, 21 June 2017, Invited Talks, Invited Talk, 01-06-2017 | Link
  • N. Paunkovic, Quantum Information Theory and Asymptotics of Quantum Contract Signing, PhD Thesis Jury, PhD thesis defence of Hana Louka, Faculty of Mathematics, University of Belgrade, 20 October 2016, 01-10-2016
  • N. Paunkovic, MV Vojinovic, Gravity-Matter Entanglement in Regge Quantum Gravity. EmQM15 – Emergent Quantum Mechanics symposium, Vienna, Austria, October 23-25, 2015., Tutorial, Poster, 01-10-2015 | Link
  • N. Paunkovic, Quantum information and many-body physics. CFIF Mini–Workshop on Theoretical Condensed Matter Physics, IST, 12 November, 2013, Lisbon, Portugal, Invited Talks, Talk, 01-11-2013
  • N. Paunkovic, Quantum Commitments Based on Complementarity - Contract Signing. IT Workshop on Quantum Telecommunications, 15 – 17 May 2013, Lisbon, Portugal, Invited Talks, Talk, 01-05-2013
  • N. Paunkovic, Fidelity spectrum and characterization of different phases of quantum systems. Correlations and coherence in quantum systems, 8-12 October 2012, Évora, Portugal, Invited Talks, Talk, 01-10-2012
  • N. Paunkovic, Fidelity, Fidelity Spectrum and Geometric Phases as Signatures of Phase Transitions. The third International Iran Conference on Quantum Information, 8-12 September 2012, Tehran, Iran, Invited Talks, Talk, 01-09-2012
  • N. Paunkovic, J. Bouda, P. Mateus, Quantum Commitments Based on Complementarity - Contract Signing. 9th Central European Quantum Information Processing Workshop 7-10 June 2012, Smolenice, Slovakia, Tutorial, Poster Session, 01-06-2012
  • N. Paunkovic, Quantum Information and Phase Transitions in Many-Body Systems. Workshop on the dynamics and asymptotics in the Dicke model and quantum networks, 3-7 May 2012, Mátraháza, Hungary, Invited Talks, Talk, 01-05-2012
  • N. Paunkovic, P.D. Sacramento, V. Vieira, Fidelity spectrum, quantum phases and their transitions. Quantum Malta 2012: Fundamental Problems in Quantum physics 24 - 27 April 2012, Malta, Tutorial, Poster Session, 01-04-2012
  • N. Paunkovic, V. Vieira, P.D. Sacramento, P. Nogueira, V. K. Dugaev, Quantum Information and Phase Transitions: Fidelity and State Distinguishability. 2009 Arnold Sommerfield Summer School "Condensed Matter Physica and Ultra cold Quantum Gases"., Tutorial, Poster Session, 01-10-2009
  • N. Paunkovic, Quantum Contract Signing, Faculty of Physics, University of Vienna, Austria, Vienna, 11-2009
  • Correlations, criticality, and coherence in quantum system, Organizing Committee, 2014
  • Correlations, criticality, and coherence in quantum system, Organizing Committee, 2012
  • Guest Editor, Applied Sciences (Switzerland), 29-09-2020 - 29-09-2021
  • Guest Editor, Symmetry, 10-02-2020 - 14-06-2021
  • Guest Editor, Entropy, 02-11-2019 - 24-06-2021
  • Entropy
    2017, 1 review(s);
  • Optics Express
    2016, 1 review(s);
  • Quantum Information Processing
    2013, 1 review(s);
  • International Journal of Theoretical Physics
    2016, 1 review(s);
  • International Journal of Modern Physics B
    2017, 1 review(s);
  • Optical and Quantum Electronics
    2018, 1 review(s);
  • Indian Journal of Physics
    2018, 1 review(s);
  • Condensed Matter
    2018, 1 review(s);
  • Physical Review Letters
    2005, 1 review(s);
  • Physical Review A - Atomic, Molecular, and Optical Physics
    2005, 1 review(s);
  • Physical Review B - Condensed Matter and Materials Physics
    2005, 1 review(s);
  • Physical review. E
    2005, 1 review(s);
  • Journal of Physics A: Mathematical & General
    2005, 1 review(s);
  • New Journal of Physics
    2012, 1 review(s);
  • Europhysics Letters
    2008, 1 review(s);