Paolo Villoresi

Paolo Villoresi

Principal Investigator, Professor (If.)

Born in Treviso, Italy, in 1962, he studied Physics and Applied Mathematics at the University of Padova. He is a Full Professor of Physics (Professore Ordinario) at the University of Padova, where he currently teaches Quantum Optics and related subjects.

  • Director and Founding member of the Padua Quantum Technologies Research Center.
  • Member of the Board of Stakeholders of the European Technological platform Photonics21
  • National delegate for Action COST Nanoscale Quantum Optics
  • Deputy National Delegate for COST Action Quantum Physics in Space
  • Member of the Executive Board of Department of Information Engineering, UniPD.
  • Member of the Advisory Committee of Scientific and Technological institutions.

Selected current research activities in Experimental Quantum Communications, as Group coordinator:

  • Principal investigator for the I-QKD Italian quantum communication in-orbit validation satellite (Italian Space Agency)
  • OpenQKD EU Testbed for Quantum Communications - Italian node coordinator.
  • Project coordinator for three development projects on Space Quantum Communication payload for the Italian Space Agency (2016-2022).
  • Development and patenting of Quantum Random Number Generators QRNG – 17 Gbps record rate generated so far. (2014-2019)
  • First demonstration of Quantum Communications from an orbiting transmitter on a LEO satellite using polarization and temporal degrees of freedom (2010-2016).
  • Fundamental experiments in wave-particle duality of photons in Space: Wheeler "Delayed Choice" experiment (2016-2017).
  • Q-Space Experiment: first demonstration of single-photon link between a satellite and the Earth (2003-2008).
  • Canary 143 km Inter-island link experiment: Experimental demonstration of Quantum Key Distribution with mitigation of turbulence effects (2010-2015)
  • Single photon exchange from a MEO satellite (2015).
  • Aberration cancellation in quantum interferometry (2006-2009)
  • Adaptive optics for entanglement generation and control (2008-2014)

Past research activities includes:

  • Experimental study of the interaction of matter with radiation, in the area of ultrashort and ultrafast laser pulses: strongly nonlinear optical effects as high-order laser harmonics generation and optical ionization;
  • Phenomena depending on the absolute phase of the radiation, asymmetry in the multiphoton ionization, researches in the generation and characterization of attosecond pulses, (1997-2013).
  • Adaptive optics application in ultrafast pulse generation (2008-2013)

Author of more than a hundred seventy publications on peer-refereed journals, including Nature and Science, on encyclopaedia and editor of 2 books. Coauthor of more than 200 congresses contribution in the areas of Quantum Communication, Quantum Optics, laser-matter interaction and Atomic and Plasma Physics.

He served as supervisor of 17 PhD project (3 in progress), 7 as co-supervisor (4 in progress) and supervisor of 88 Master students (3 in progress).

Invited speaker in all continents and Referee for research projects internationally.

He is an Associate Editor of Scientific Reports (Nature Pub.)

Served as coordinator in several national and international research projects, including the area of quantum communication, attosecond Physics, application of laser in Medicine and Industry.

Coauthor of 12 industrial patents and patent applications on topics ranging from technological and medical applications of lasers and optics to practical exploitation of quantum processes.

Awards and Prizes

  • Winner of the first prize, with team VIVA, of STARTCUP 2002 - L'idea diventa impresa, the first competition among Italian Universities on best proposal that exploits for business a research idea, July 4, 2002, now Premio Nazionale per l’Innovazione.
  • Selected for one of the 20 ideas of national relevance for the 2nd National Day for the Research, Rome, Oct. 1, 2003.
  • Winner of the first prize ex-aequo of the 4-th Premio Regionale per l’Innovazione on July 7, 2004.

Publications

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Journal Articles

114.

High-performance heterodyne receiver for quantum information processing in a laser-written integrated photonic platform

Andrea Peri; Giulio Gualandi; Tommaso Bertapelle; Mattia Sabatini; Giacomo Corrielli; Yoann Piétri; Davide Giacomo Marangon; Giuseppe Vallone; Paolo Villoresi; Roberto Osellame; Marco Avesani

In: Advanced Photonics, vol. 8, no. 1, pp. 016009, 2026.

113.

Time-resolved certification of frequency-bin entanglement over multi-mode channels

Stéphane Vinet; Marco Clementi; Marcello Bacchi; Yujie Zhang; Massimo Giacomin; Luke Neal; Paolo Villoresi; Matteo Galli; Daniele Bajoni; Thomas Jennewein

In: npj Quantum Information, 2026, ISBN: 2056-6387.

112.

A Sagnac-based Arbitrary Time-Bin State Encoder for Quantum Communication Applications

Kannan Vijayadharan; Matías Rubén Bolaños; Marco Avesani; Giuseppe Vallone; Paolo Villoresi; Costantino Agnesi

In: EPJ Quantum Technol., vol. 12, no. 1, pp. 129, 2025, ISSN: 2662-4400, 2196-0763.

111.

Towards Satellite Tests Combining General Relativity and Quantum Mechanics through Quantum Optical Interferometry: Progress on the Deep Space Quantum Link

Makan Mohageg; Charis Anastopoulos; Olivia Brasher; Jason Gallicchio; Bei Lok Hu; Thomas Jennewein; Spencer Johnson; Shih-Yuin Lin; Alexander Ling; Alexander Lohrmann; Christoph Marquardt; Luca Mazzarella; Matthias Meister; Raymond Newell; Albert Roura; Giuseppe Vallone; Paolo Villoresi; Lisa Wörner; Paul Kwiat

In: EPJ Quantum Technol., vol. 12, no. 1, pp. 78, 2025, ISSN: 2662-4400, 2196-0763.

110.

Intermodal Quantum Key Distribution Field Trial with Active Switching between Fiber and Free-Space Channels

Francesco Picciariello; Ilektra Karakosta-Amarantidou; Edoardo Rossi; Marco Avesani; Giulio Foletto; Luca Calderaro; Giuseppe Vallone; Paolo Villoresi; Francesco Vedovato

In: EPJ Quantum Technol., vol. 12, no. 1, pp. 6, 2025, ISSN: 2662-4400, 2196-0763.

109.

Radiation Hardness Properties and DCR Reduction via Laser Annealing of InGaAs/InP SPADs for Space Applications

Lorenzo Finazzi; Fabio Signorelli; Marta Bagatin; Simone Gerardin; Mujtaba Zahidy; Giuseppe Vallone; Thomas Jennewein; Paolo Villoresi; Alberto Tosi

In: Opt. Express, vol. 33, no. 23, pp. 47876, 2025, ISSN: 1094-4087.

108.

Power-Consumption Back Door in Quantum Key Distribution

Beatriz Lopes Da Costa; Matías R. Bolaños; Ricardo Chaves; Claudio Narduzzi; Marco Avesani; Davide Giacomo Marangon; Andrea Stanco; Giuseppe Vallone; Paolo Villoresi; Yasser Omar

In: Phys. Rev. Applied, vol. 24, no. 5, pp. 054004, 2025, ISSN: 2331-7019.

107.

A Passive and Self-Characterizing Cross-Encoded Receiver for Reference-Frame-Independent Quantum Key Distribution

Massimo Giacomin; Francesco B. L. Santagiustina; Giuseppe Vallone; Paolo Villoresi; Costantino Agnesi

In: Optica Quantum, vol. 3, no. 4, pp. 389, 2025, ISSN: 2837-6714.

106.

Hybrid Encoder for Discrete and Continuous Variable QKD

Mattia Sabatini; Tommaso Bertapelle; Paolo Villoresi; Giuseppe Vallone; Marco Avesani

In: Adv Quantum Tech, vol. 8, no. 8, pp. 2400522, 2025, ISSN: 2511-9044, 2511-9044.

105.

Energy-Time and Time-Bin Entanglement: Past, Present and Future

Guilherme B. Xavier; Jan-Åke Larsson; Paolo Villoresi; Giuseppe Vallone; Adán Cabello

In: npj Quantum Inf, vol. 11, no. 1, pp. 129, 2025, ISSN: 2056-6387.

104.

Low-Error Encoder for Time-Bin and Decoy States for Quantum Key Distribution

Davide Scalcon; Elisa Bazzani; Giuseppe Vallone; Paolo Villoresi; Marco Avesani

In: npj Quantum Inf, vol. 11, no. 1, pp. 22, 2025, ISSN: 2056-6387.

103.

High-Speed Source-Device-Independent Quantum Random Number Generator on a Chip

Tommaso Bertapelle; Marco Avesani; Alberto Santamato; Alberto Montanaro; Marco Chiesa; Davide Rotta; Massimo Artiglia; Vito Sorianello; Francesco Testa; Gabriele De Angelis; Giampiero Contestabile; Giuseppe Vallone; Marco Romagnoli; Paolo Villoresi

In: Optica Quantum, vol. 3, no. 1, pp. 111, 2025, ISSN: 2837-6714.

102.

A Time-to-Digital Converter With Steady Calibration Through Single-Photon Detection

Matías Rubén Bolaños; Daniele Vogrig; Paolo Villoresi; Giuseppe Vallone; Andrea Stanco

In: IEEE Trans. Instrum. Meas., vol. 74, pp. 1–9, 2025, ISSN: 0018-9456, 1557-9662.

101.

In-field Comparison between G.652 and G.655 Optical Fibres for Polarisation-based Quantum Key Distribution

Costantino Agnesi; Massimo Giacomin; Daniele Sartorato; Silvia Artuso; Giuseppe Vallone; Paolo Villoresi

In: IET Quantum Communication, vol. 5, no. 4, pp. 567–574, 2024, ISSN: 2632-8925, 2632-8925.

100.

High Directional Optical Transmitter with Phased Array of Nanoptical Emitters and Efficient Error Correction for Long Distance Space Communications

Elisa Bazzani; Anna Valeria Guglielmi; Roberto Corvaja; Nicola Laurenti; Filippo Romanato; Gianluca Ruffato; Andrea Vogliardi; Giuseppe Vallone; Lorenzo Vangelista; Paolo Villoresi

In: Phys. Rev. Research, vol. 6, no. 4, pp. 043266, 2024, ISSN: 2643-1564.

99.

Secure and Robust Randomness with Sequential Quantum Measurements

Matteo Padovan; Giulio Foletto; Lorenzo Coccia; Marco Avesani; Paolo Villoresi; Giuseppe Vallone

In: npj Quantum Inf, vol. 10, no. 1, pp. 94, 2024, ISSN: 2056-6387.

98.

Experimental Post-Selection Loophole-Free Time-Bin and Energy-Time Nonlocality with Integrated Photonics

Francesco B. L. Santagiustina; Costantino Agnesi; Alvaro Alarcón; Adán Cabello; Guilherme B. Xavier; Paolo Villoresi; Giuseppe Vallone

In: Optica, vol. 11, no. 4, pp. 498, 2024, ISSN: 2334-2536.

97.

Hong-Ou-Mandel Interference of Single-Photon-Level Pulses Stored in Independent Room-Temperature Quantum Memories

Sonali Gera; Chase Wallace; Mael Flament; Alessia Scriminich; Mehdi Namazi; Youngshin Kim; Steven Sagona-Stophel; Giuseppe Vallone; Paolo Villoresi; Eden Figueroa

In: npj Quantum Inf, vol. 10, no. 1, pp. 10, 2024, ISSN: 2056-6387.

96.

Quantum-Secured Time Transfer between Precise Timing Facilities: A Field Trial with Simulated Satellite Links

Francesco Picciariello; Francesco Vedovato; Davide Orsucci; Pablo Nahuel Dominguez; Thomas Zechel; Marco Avesani; Matteo Padovan; Giulio Foletto; Luca Calderaro; Daniele Dequal; Amita Shrestha; Ludwig Blümel; Johann Furthner; Giuseppe Vallone; Paolo Villoresi; Tobias D. Schmidt; Florian Moll

In: GPS Solut, vol. 28, no. 1, pp. 48, 2024, ISSN: 1080-5370, 1521-1886.

95.

Modular Source for Near-Infrared Quantum Communication

Federico Berra; Costantino Agnesi; Andrea Stanco; Marco Avesani; Sebastiano Cocchi; Paolo Villoresi; Giuseppe Vallone

In: EPJ Quantum Technol., vol. 10, no. 1, pp. 27, 2023, ISSN: 2662-4400, 2196-0763.

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