Position Associate Professor (Reader)

Computer Science
University of York
Deramore Lane

York, YO10 5GH, UK

Email pirs (at) cs | york | ac | uk
Phone +44 (0)1904 325475

Other Affiliations

York Centre for Quantum Technologies (YCQT)
Quantum Communications Hub
Biological Physical Sciences Institute (BPSI)



Hi there! For brief info on my academic career see my departmental website.


My current group on Quantum Technologies

  • Carlo Ottaviani (post-doc)
  • Riccardo Laurenza (PhD student)
  • Thomas Cope (PhD student)
  • Panagiotis Papanastasiou (PhD student)





Quantum Information
Seminars are here

Bruno Touschek's drawings

My Research Area (at a glance)

Quantum information theory, in particular with "continuous-variable systems".

Topics of main interest:

        • Quantum Cryptography
        • Quantum Networks
        • Quantum Entanglement and Teleportation
        • Quantum Hypothesis Testing
        • Quantum Metrology
        • Measurement Theory
        • Gaussian States
        • Capacities of Quantum Channels
        • Quantum Error Correction
        • Opto-Mechanical Systems
        • Black Hole Quantum Information




Selected Publications

Most of my publications are on the arXiv. Here is a selection:.

• S. Pirandola, J. Eisert, C. Weedbrook, A. Furusawa, S. L. Braunstein
Advances in Quantum Teleportation
Nature Photonics 9, 641–652 (2015) - arXiv

Media coverage:

Scientists produce status check on quantum teleportation (York press release) (Phys.org)
Review on teleportation in Nature Photonics (University of Berlin press)
Why 'teleportation' is no longer science fiction (Futurity)
Teleportation isn't just stuff of science fiction anymore (RedOrbit)

• S. Pirandola, C. Ottaviani, G. Spedalieri, C. Weedbrook, S. L. Braunstein, S. Lloyd, T. Gehring, C. S. Jacobsen, U. L. Andersen
High-rate measurement-device-independent quantum cryptography
Nature Photonics 9, 397-402 (2015) - arXiv

Media coverage and reviews on this work:

Team finds the 'key' to quantum network solution (Phys.org) (York press release)
Effective measurement-device-independent quantum cryptography (Spie Newsroom)
High-rate measurement-device-independent quantum cryptography (Highlights - Denmark Technical University)
Un protocollo più efficiente per la crittografia quantistica (Le Scienze, Italian version of Scientific American)
Key to quantum network solution found (Iran Daily)

• S. Barzanjeh, S. Guha, C. Weedbrook, D. Vitali, J. H. Shapiro, S. Pirandola
Microwave Quantum Illumination
Phys. Rev. Lett. 114, 080503 (2015) - arXiv - PRL

Media coverage on this work:

New research signals big future for quantum radar (York press release) (Phys.org) (Communications of the ACM)
Focus: Quantum Mechanics Could Improve Radar in Physics Focus (APS magazine) Physics 8, 18 (2015)
Scientists develop quantum radar to detect radar-evading objects (Tehran Times)
Quantum radar could detect stealth cancer cells or aircraft (Kurzweil Accelerating Intelligence)
Quantum Radar Could Render Stealth Aircraft Obsolete (SIGNAL magazine, AFCEA)

• S. Pirandola, G. Spedalieri, S. L. Braunstein, N. J. Cerf, S. Lloyd
Optimality of Gaussian Discord
Phys. Rev. Lett. 113, 140405 (2014) - arXiv - PRL

Featured in Nature Physics: Quantum technology: The golden apple - Nature Physics 10, 474 (2014)

• S. L. Braunstein, S. Pirandola, and Karol Zyczkowski
Better Late than Never: Information Retrieval from Black Holes
Phys. Rev. Lett. 110, 101301 (2013) - arXiv - PRL

Media coverage on this work:

Curtains down for the black hole firewall paradox: making gravity safe for Einstein again (Press release, York) (Phys.org) (ScienceDaily) (SpaceDaily)
Gravity-less toy black hole solves cosmic puzzles - NewScientist
Domate le fiamme all’orizzonte degli eventi - INAF media (Italian Institute of Astrophysics)

• C. Weedbrook, S. Pirandola, R. Garcia-Patron, T. C. Ralph, N. Cerf, J. H. Shapiro, and S. Lloyd
Gaussian Quantum Information
Reviews of Modern Physics 84, 621 (2012) - arXiv

• S. L. Braunstein and S. Pirandola
Side-channel free quantum key distribution
Phys. Rev. Lett. 108, 130502 (2012) - arXiv

• M. Abdi, S. Pirandola, P. Tombesi, D. Vitali
Entanglement swapping with local certification: Application to remote micromechanical resonators
Phys. Rev. Lett. 109, 143601 (2012) - arXiv

• S. Pirandola, C. Lupo, V. Giovannetti, S. Mancini, S. L. Braunstein
Quantum Reading Capacity
New J. Phys. 13, 113012 (2011) - arXiv

Included in the Highlights of 2011 by the Institute of Physics (IOP)

• S Pirandola
Quantum Reading of a Classical Digital Memory
Phys. Rev. Lett. 106, 090504 (2011) - arXiv

Media coverage on this work

Reading in the dark - Nature Physics 7, 278 (2011)
A few good photons - Physics
Reading discs with fewer photons - Physics World
Using quantum methods to read classical memories offers surprising advantages - Phys.org
Other reviews (Italian magazines): Ulisse and Oggi Scienza

• S. Lloyd, L. Maccone, R. G.-Patron, V. Giovannetti, Y. Shikano, S. Pirandola, L. A. Rozema, A. Darabi, Y. Soudagar, L. K. Shalm, A. M. Steinberg
Closed timelike curves via post-selection: theory and experimental demonstration
Phys. Rev. Lett.106, 040403 (2011) - arXiv

Media coverage on this work:

Time travel without regrets - Phys. Rev. Focus 27, 5 (2011)
Time travel experiment demonstrates how to avoid the grandfather paradox - Phys.org
Quantum time travel: Black hole not required (New Scientist)
Other reviews (Italian magazines): Ulisse and Oggi Scienza

• C. Weedbrook, S. Pirandola, S. Lloyd, and T. C. Ralph
Quantum Cryptography Approaching the Classical Limit
Phys. Rev. Lett. 105, 110501 (2010) - arXiv

• S. Pirandola, R. Garcia-Patron, S. L. Braunstein, and S. Lloyd
Direct and Reverse Secret-Key Capacities of a Quantum Channel
Phys. Rev. Lett. 102, 050503 (2009) - arXiv

• S. Pirandola, S. Mancini, S. Lloyd, and S. L. Braunstein
Continuous Variable Quantum Cryptography using Two-Way Quantum Communication
Nature Physics 4, 726 (2008) - arXiv

• S.-H. Tan, B. I. Erkmen, V. Giovannetti, S. Guha, S. Lloyd, L. Maccone, S. Pirandola, and J. H. Shapiro
Quantum Illumination with Gaussian States
Phys. Rev. Lett. 101, 253601 (2008) - arXiv

Re quantum illumination: Quantum Entanglement Benefits Exist after Links Are Broken - Scientific American

• S. Pirandola, S. L. Braunstein, and S. Lloyd
Characterization of Collective Gaussian Attacks and Security of Coherent-State Quantum Cryptography
Phys. Rev. Lett. 101, 200504 (2008) - arXiv

• S. Pirandola and S. Lloyd
Computable bounds for the discrimination of Gaussian states
Phys. Rev. A 78, 012331 (2008) - arXiv

• S. Pirandola, D. Vitali, P. Tombesi, and S. Lloyd
Macroscopic entanglement by entanglement swapping
Phys. Rev. Lett. 97, 150403 (2006) - arXiv

For more on macroscopic entanglement read: Scientists present method for entangling macroscopic objects - Phys.org

• S. Pirandola, S. Mancini, D. Vitali, and P. Tombesi
Continuous variable entanglement and quantum state teleportation between optical and macroscopic
vibrational modes through radiation pressure

Phys. Rev. A 68, 062317 (2003) - arXiv