Creating and sharing knowledge for telecommunications
... Daowen Qiu

Researcher

Daowen Qiu

Academic position: Researcher
Joining date: 09-03-2009
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, Instituto Superior Técnico, 01-01-2008
  • Informação Quântica
  • D. Qiu Qiu, L. Li, P. Mateus, Quantum finite automata, Chapter in, Handbook on Finite State based Models and Applications, J. Wang, CRC Press, 2012
  • D. Qiu Qiu, Some observations on two-way finite automata with quantum and classical states, Chapter in, ICIC2008, volume 5266 of Lecture Notes in Computer Science, pages 1-8, Daowen Qiu, Springer, 2008
  • Z. Rong, D. Qiu Qiu, P. Mateus, X Zou Zou, Mediated semi-quantum secure direct communication, Quantum Information Processing, Vol. 20, No. 2, pp. 58 - 58, February, 2021 | BibTex
  • W. Zhang, D. Qiu Qiu, P. Mateus, Single-state semi-quantum key distribution protocol and its security proof, International Journal of Quantum Information, Vol. 18, No. 04, pp. 2050013 - 2050013, June, 2020 | BibTex
  • S. Du, D. Qiu Qiu, P. Mateus, J. Gruska, Synthesis of quantum images using phase rotation, Quantum Information Processing, Vol. 18, No. 1, pp. 286 - 286, September, 2019 | BibTex
  • S. Du, D. Qiu Qiu, P. Mateus, J. Gruska, Enhanced double random phase encryption of quantum images, Results in Physics, Vol. 13, No. 1, pp. 102161 - 102161, August, 2019 | BibTex
  • M. Pan, D. Qiu Qiu, P. Mateus, J. Gruska, Entangling and disentangling in Grover's search algorithm, Theoretical Computer Science, Vol. 773, No. 1, pp. 138 - 138, January, 2019 | BibTex
  • W. Zhang, D. Qiu Qiu, P. Mateus, Security of a single-state semi-quantum key distribution protocol, Quantum Information Processing, Vol. 17, No. 6, pp. 135 - 135, May, 2018 | BibTex
  • X Zhang, D. Qiu Qiu, X Zou Zou, P. Mateus, Analyses and improvement of a broadcasting multiple blind signature scheme based on quantum GHZ entanglement., Quantum Information Processing, Vol. in print, No. 1, pp. 1 - 1, April, 2017 | BibTex
  • Z. H. Huang, D. Qiu Qiu, P. Mateus, Geometry and dynamics of one-norm geometric quantum discord, Quantum Information Processing, Vol. 15, No., pp. 301 - 326, January, 2016 | 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
  • X Zou Zou, D. Qiu Qiu, S. Zhang Zhang, P. Mateus, Semiquantum key distribution without invoking the classical party’s measurement capability, Quantum Information Processing, Vol. 14, No. 8, pp. 2981 - 2996, August, 2015 | BibTex
  • D. Qiu Qiu, L. Li, P. Mateus, A. Sernadas, Exponentially more concise quantum recognition of non-RMM regular languages, Journal of Computer and System Sciences, Vol. 2015, No. 2, pp. 359 - 375, March, 2015 | BibTex
  • D. Qiu Qiu, X. Zou, F You, P. Mateus, Security Problems in the Quantum Signature Scheme with a Weak Arbitrator, Intrnl. Journal of Theoretical Physics, Vol. 53, No. 2, pp. 603 - 611, January, 2014 | BibTex
  • D. Qiu Qiu, F You, Coding-Based Quantum Private Database Query Using Entanglement, Quantum Information and Computation, Vol. 14, No. 1-2, pp. 91 - 106, January, 2014 | BibTex
  • D. Qiu Qiu, X. Zou, P. Mateus, Security Analyses and Improvement of Arbitrated Quantum Signature with an Untrusted Arbitrator, Intrnl. Journal of Theoretical Physics, Vol. 52, No. 9, pp. 3295 - 3305, December, 2013 | BibTex
  • D. Qiu Qiu, X. Zou, Attack and improvements of fair quantum blind signature schemes, Quantum Information Processing, Vol. 12, No. 1, pp. 2071 - 2085, November, 2013 | BibTex
  • S. Zheng, D. Qiu Qiu, J. Gruska, L. Li, P. Mateus, State succinctness of two-way finite automata with quantum and classical statesState succinctness of two-way finite automata with quantum and classical states, Theoretical Computer Science, Vol. 499, No. 1, pp. 98 - 112, November, 2013 | BibTex
  • L. Li, D. Qiu Qiu, P. Mateus, Quantum secret sharing with classical Bobs, Journal of Physics A: Mathematical and Theoretical, Vol. 46, No. 1, pp. 045304 - 045304, January, 2013 | BibTex
  • J. T. Tao, D. Qiu Qiu, Quantum isometry groups for dihedral group D2(2n+1), Journal of Geometry and Physics, Vol. 62, No. 1, pp. 1977 - 1983, June, 2012 | BibTex
  • Y. Long, D. Qiu Qiu, SOME LANGUAGES RECOGNIZED BY TWO-WAY FINITE AUTOMATA WITH QUANTUM AND CLASSICAL STATES, International Journal of Foundations of Computer Science, Vol. 23, No. 1, pp. 1117 - 1129, June, 2012 | BibTex
  • Y. Ma, D. Qiu Qiu, Concurrence vectors of multipartite states based on coefficient matrices, Quantum Information Processing, Vol. 11, No. 1, pp. 235 - 254, May, 2012 | BibTex
  • D. Qiu Qiu, Quantum secret sharing of multi-bits by an entangled six-qubitstate, Journal of Physics A: Mathematical and Theoretical, Vol. 45, No. 1, pp. 195303 - 195303, April, 2012 | BibTex
  • P. Mateus, D. Qiu Qiu, L. Li, On the complexity of minimizing probabilistic and quantum automata, Information and Computation, Vol. 218, No. 1, pp. 36 - 53, March, 2012 | BibTex
  • L. Z. Zhou, D. Qiu Qiu, L. Li, L. Wu, P. Mateus, Characterizations of one-way general quantum finite automata, Theoretical Computer Science, Vol. 419, No. 1, pp. 73 - 91, March, 2012 | BibTex
  • L. Wu, D. Qiu Qiu, H. Xing, Automata theory based on complete residuated lattice-valued logic: Turing machines, Fuzzy Sets and Systems, Vol. 208, No. 1, pp. 43 - 66, March, 2012 | BibTex
  • X. Zou, D. Qiu Qiu, Comment on Semiquantum-key distribution using less than four quantum states, Physical Review A - Atomic, Molecular, and Optical Physics, Vol. 83, No. 4, pp. 046302 - 046303, November, 2011 | BibTex
  • Y. Long, D. Qiu Qiu, D. Long, An Efficient Separability Criterion for n-partite arbitrarily dimensional quantum states, International Journal of Quantum Information, Vol. 9, No. 1, pp. 1101 - 10112, September, 2011 | BibTex
  • S. Zheng, L. Li, D. Qiu Qiu, Two-Tape Finite Automata with Quantum and Classical States, Intrnl. Journal of Theoretical Physics, Vol. 2011, No. 50, pp. 1262 - 1281, September, 2011 | BibTex
  • Haozhen Situ, D. Qiu Qiu, Investigating the implementation of restricted sets of multiqubit operations on distant qubits: a communication complexity perspective, Quantum Information Processing, Vol. 10, No. 1, pp. 609 - 618, May, 2011 | BibTex
  • Q. Lin, D. Long, D. Qiu Qiu, Sharing a quantum secret without a trusted party, Quantum Information Processing, Vol. 10, No. 1, pp. 97 - 106, May, 2011 | BibTex
  • D. Qiu Qiu, L. Li, X. Zou, P. Mateus, J. Gruska, Multi-letter quantum finite automata: Decidability of the equivalence and minimization of states., Acta Informatica, Vol. 48, No. 5-6, pp. 271 - 200, April, 2011 | BibTex
  • Haozhen Situ, D. Qiu Qiu, Simultaneous dense coding, Journal of Physics A: Mathematical and Theoretical, Vol. 43, No. 5, pp. 055301 - 055301, December, 2010 | BibTex
  • L. Wu, D. Qiu Qiu, Automata theory based on complete residuated lattice- valued logic: Reduction and minimization, Fuzzy Sets and Systems, Vol. 161, No. 161, pp. 1635 - 1656, December, 2010 | BibTex
  • D. Qiu Qiu, X. Zou, Security analysis and improvements of arbitrated quantum signature schemes, Physical Review A - Atomic, Molecular, and Optical Physics, Vol. 82, No. 4, pp. 042325 - 042325, August, 2010 | BibTex
  • D. Qiu Qiu, Relation between minimum-error discrimination and optimum unambiguous discrimination, Physical Review A - Atomic, Molecular, and Optical Physics, Vol. 82, No. 3, pp. 032333 - 023333, July, 2010 | BibTex
  • Y. Long, D. Qiu Qiu, D. Long, Perfect Teleportation Between Arbitrary Split of Six Partites by a Maximally Genuinely Entangled Six-Qubit State, International Journal of Quantum Information, Vol. 8, No. 5, pp. 821 - 841, July, 2010 | BibTex
  • D. Qiu Qiu, L. Li, Minimum-error discrimination of quantum states: Bounds and comparisons, Physical Review A - Atomic, Molecular, and Optical Physics, Vol. 81, No. 4, pp. 042329 - 042329, May, 2010 | BibTex
  • D. Qiu Qiu, H. Yi, W. Jiayan, Practical full and partial separability criteria for multipartite pure states based on the coefficient matrix method, Journal of Physics A: Mathematical and Theoretical, Vol. 42, No. 42, pp. 425306 - 425306, October, 2009 | BibTex
  • W. Jiayan, H. Yi, D. Qiu Qiu, Entanglement Properties of Adiabatic Quantum Algorithms, International Journal of Quantum Information, Vol. 7, No. 8, pp. 1 - 9, September, 2009 | BibTex
  • L. Li, D. Qiu Qiu, L. Li, L. Wu, X. Zou, Probabilistic broadcasting of mixed states, Journal of Physics A: Mathematical & General, Vol. 42, No. 13, pp. 175302 - 175302, January, 2009 | BibTex
  • F. Liu, D. Qiu Qiu, Diagnosability of Fuzzy Discrete Event Systems: A Fuzzy Approach, IEEE Transactions on Fuzzy Systems, Vol. 17, No. 13, pp. 372 - 384, January, 2009 | BibTex
  • L. Wu, L. Li, X. Zou, D. Qiu Qiu, L. Li, On mathematical theory of the duality computers, Quantum Information Processing, Vol. 8, No. 14, pp. 37 - 50, January, 2009 | BibTex
  • D. Qiu Qiu, F. Liu, Fuzzy discrete-event systems under fuzzy observability and a test algorithm, IEEE Transactions on Fuzzy Systems, Vol. 17, No. 3, pp. 578 - 589, January, 2009 | BibTex
  • Y. Long, D. Qiu Qiu, D. Long, An entanglement measure based on two-order minors, Journal of Physics A: Mathematical and Theoretical, Vol. -, No. 42, pp. 265301 - 265301, January, 2009 | BibTex
  • D. Qiu Qiu, Y. Long, D. Long, Perfect teleportation of unknown qudit by a D-level GHZ channel, International Journal of Quantum Information, Vol. -, No. -, pp. - - -, January, 2009 | BibTex
  • D. Qiu Qiu, H. Xing, F. Liu, Automata theory based on complete residuated lattice-valued logic: Pushdown automata, Fuzzy Sets and Systems, Vol. 160, No. 16, pp. 1125 - 1140, January, 2009 | BibTex
  • D. Qiu Qiu, S. Yu, Hierarchy and equivalence of multi-letter quantum finite automata, Theoretical Computer Science, Vol. 410, No. 30-32, pp. 3006 - 3017, January, 2009 | BibTex
  • L. Li, D. Qiu Qiu, A note on quantum sequential machines, Theoretical Computer Science, Vol. 410, No. 26, pp. 2529 - 2535, January, 2009 | BibTex
  • D. Qiu Qiu, H. Xing, Automata theory based on complete residuated lattice-valued logic: A categarical approach, Fuzzy Sets and Systems, Vol. 160, No. 16, pp. 2416 - 2428, January, 2009 | BibTex
  • H. Xing, F. Liu, D. Qiu Qiu, Z. Fan, Decentralized diagnosis of stochastic discrete event systems, IEEE Transactions on Automatic Control, Vol. 53, No. 12, pp. 535 - 546, January, 2008 | BibTex
  • L. Li, D. Qiu Qiu, Determining the equivalence for one-way quantum finite automata, Theoretical Computer Science, Vol. 403, No. 10, pp. 42 - 51, January, 2008 | BibTex
  • L. Li, D. Qiu Qiu, Local entanglement is not necessary for perfect discrimination between unitary operations acting on two qudits by local operations and classical communication, Physical Review A - Atomic, Molecular, and Optical Physics, Vol. 77, No. 7, pp. 032337 - 032337, January, 2008 | BibTex
  • L. Li, D. Qiu Qiu, Optimal discrimination between quantum operations, International Journal of Modern Physics A, Vol. 41, No. -, pp. 335302 - 335302, January, 2008 | BibTex
  • F. Liu, D. Qiu Qiu, Safe diagnosability of stochastic discrete event systems, IEEE Transactions on Automatic Control, Vol. 53, No. 6, pp. 1291 - 1296, January, 2008 | BibTex
  • D. Qiu Qiu, Minimum-error discrimination between mixed quantum states, Physical Review A - Atomic, Molecular, and Optical Physics, Vol. 77, No. 12, pp. 012328 - 012328, January, 2008 | BibTex
  • D. Qiu Qiu, A sufficient and necessary condition for superdense coding of quantum states, International Journal of Quantum Information, Vol. 6, No. 11, pp. 1115 - 1125, January, 2008 | BibTex
  • D. Qiu Qiu, L. Li, An overview of quantum computation models: quantum automata, Frontiers of Computer Science in China, Vol. 2, No. 14, pp. 193 - 207, January, 2008 | BibTex
  • J. Wen, D. Qiu Qiu, Entanglement in adiabatic quantum searching algorithms, International Journal of Quantum Information, Vol. 6, No. 13, pp. 997 - 1009, January, 2008 | BibTex
  • D. Qiu Qiu, Simulations of Quantum Turing Machines by Quantum Multi-Counter Machines, Computability in Europe - CIE, Athens, Greece, Vol. -, pp. - - -, June, 2008 | BibTex

Closed Projects1

Acronym Name Funding Agency Start date Ending date
DP-PMI Doctoral Programme in the Physics and Mathematics of Information: Foundations of Future Information Technologies (DP-PMI) FCT 01-01-2014 01-12-2021
  • D. Qiu Qiu, Semi-quantum key distribution with less states and semi-quantum secret sharing without entanglement, Czech Republic, Znojmo, 05-2011
  • D. Qiu Qiu, L. Li, P. Mateus, Quantum finite automata: equivalence and minimization. Pseudo-Hermitian Hamiltonians in Quantum Physics IX,, China, Hangzhou, 06-2010
  • D. Qiu Qiu, A new model of quantum finite automata; one way quantum finite automata together with classical states, Masaryk University, Czech Republic, Prague, 12-2009
  • D. Qiu Qiu, One-way quantum finite automata with mixed states, Czech Republic, Prague, 12-2009
  • L. Li, D. Qiu Qiu, Optimal discrimination among simultaneously diagonalizable mixed quantum states , AQIS'0, 9th Asian Conference on Quantum Information Science - Poster Session, China, Nanjing, 08-2009
  • D. Qiu Qiu, State complexity of operations on two-way quantum finite automata, AQIS'0, 9th Asian Conference on Quantum Information Science - Poster Session, China, Nanjing, 08-2009