I am the CEO, President and Co-Founder of softwareQ Inc, and a researcher at the Institute for Quantum Computing, working with Michele Mosca on theoretical aspects of quantum computation and (post-quantum) cryptography. I am also collaborating on quantum risk assessment with evolutionQ Inc.

I am involved in the CryptoWorks21 Quantum-Safe Cryptographic Infrastructure Program and I am a member of the European Telecommunications Standards Institute (ETSI) Quantum-Safe Cryptography Standardization Group.

I graduated from Carnegie Mellon University with a PhD in Theoretical Physics. My advisor was Robert B. Griffiths.

Curriculum Vitae as of July 2017

"Try not to become a man of success,
but rather try to become a man of value"
Albert Einstein


Institute for Quantum Computing (IQC) at the University of Waterloo
200 University Avenue West, Waterloo, ON, N2L 3G1, Canada
Office: IQC-QNC 3112
Email: vgheorgh AT gmail DOT com
Twitter: @vlad_hbar
PGP Public Key (4096 bit)


I am interested in fault-tolerant quantum processing, quantum architectures, quantum communication, quantum and classical cryptography and classical/quantum separation.

I am a referee for: Nature, Physical Review Letters, New Journal of Physics, Physical Review A, Quantum Information Processing, Quantum Information and Computation, Quantum Science and Technology, Physics Letters A, International Journal of Quantum Information, Optics Communications, IEEE Security & Privacy.

Work in progress


arXiv feed, Google Scholar citations

  1. Vlad Gheorghiu, Sergey Gorbunov, Michele Mosca and Bill Munson, "Quantum-Proofing the Blockchain", white paper for The Blockchain Research Institute (Toronto) (2017).

  2. Vlad Gheorghiu and Michele Mosca, "A resource estimation framework for quantum attacks against cryptographic functions", Global Risk Insitute (Toronto) quantum risk assessment report Sep. 2016 - Feb. 2017 (2017).

  3. Jacob Marks, Tomas Jochym-O'Connor and Vlad Gheorghiu, "Comparison of fault-tolerant thresholds for planar qudit geometries", arXiv:1701.02335 [quant-ph] (2017).

  4. Matthew Amy, Olivia Di Matteo, Vlad Gheorghiu, Michele Mosca, Alex Parent and John Schanck, "Estimating the cost of generic quantum pre-image attacks on SHA-2 and SHA-3", Cryptology ePrint Archive: Report 2016/992, arXiv:1603.09383 [quant-ph] (2016), accepted as a hot-topic contribution to PQCrypto 2016 (Fukoaka, Japan), invited talk at the Quantum Computer Science Workshop 2016 (Banff AB, Canada), video available here. To appear in the proceedings of Selected Areas in Cryptography (SAC) 2016, St. John's, Newfoundland, Canada.

  5. Vlad Gheorghiu, Marcos C. de Oliveira and Barry C. Sanders, "Nonzero Classical Discord", arXiv:1407.5507 [quant-ph], Phys. Rev. Lett. 115, 030403 (2015).

  6. Srinivasan Arunachalam, Vlad Gheorghiu, Tomas Jochym-O'Connor, Michele Mosca and Priyaa Varshinee Srinivasan, "On the Robustness of Bucket Brigade Quantum RAM", arXiv:1502.03450 [quant-ph] (2015), New Journal of Physics 17, 123010 (2015), contributed talk in the proceedings of the TQC 2015 (Bruxelles, Belgium) contributed talk AQIS 2015 (Seoul, South Korea).

  7. Vlad Gheorghiu, "Quantum++ - A C++11 Quantum Computing Library", arXiv:1412.4704 [quant-ph] (2014), contributed talk at the Quantum Programming and Circuits Workshop, June 8-11, 2015, IQC, University of Waterloo, Canada, invited talk at the Quantum Computer Science Workshop 2016 (Banff AB, Canada), video available here.

  8. Vlad Gheorghiu, "Standard Form of Qudit Stabilizer Groups", arXiv:1101.1519 [quant-ph], Phys. Lett. A 378, 505-509 (2014).

  9. German Luna, Samuel Reid, Bianca De Sanctis and Vlad Gheorghiu, "A Combinatorial Approach to Quantum Error Correcting Codes", arXiv:1304.6743 [math], Discrete Mathematics, Algorithms and Applications, vol. 6, 1450054 (2014).

  10. Vlad Gheorghiu and Barry C. Sanders, "Accessing Quantum Secrets via Local Operations and Classical Communication", arXiv:1305.0805 [quant-ph], Phys. Rev. A 88, 022340 (2013).

  11. Shmuel Friedland, Vlad Gheorghiu and Gilad Gour, "Universal Uncertainty Relations", arXiv:1304.6351 [quant-ph], Phys. Rev. Lett. 111, 230401 (2013). QCrypt 2013 conference talk recorded on YouTube.

  12. Patrick J. Coles, Vlad Gheorghiu and Robert B. Griffiths, "Consistent Histories for Tunneling Molecules Subject to Collisional Decoherence", arXiv:1205.6188 [quant-ph], Phys. Rev. A 86, 042111 (2012).

  13. Vlad Gheorghiu and Gilad Gour, "Multipartite Entanglement Evolution Under Separable Operations", arXiv:1205.2667 [quant-ph], Phys. Rev. A 86, 050302 (Rapid Communications) (2012).

  14. Vlad Gheorghiu, "Generalized Semiquantum Secret-Sharing Schemes", arXiv:1204.1072 [quant-ph], Phys. Rev. A 85, 052309 (2012).

  15. Patrick J. Coles, Li Yu, Vlad Gheorghiu and Robert B. Griffiths, "Information Theoretic Treatment of Tripartite Systems and Quantum Channels", arXiv:1006.4859 [quant-ph], Phys. Rev. A 83, 062338 (2011).

  16. Vlad Gheorghiu, "Separable Operations, Graph Codes and the Location of Quantum Information", Carnegie Mellon University PhD Thesis, arXiv:1006.4888 [quant-ph] (2010).

  17. Vlad Gheorghiu, Li Yu and Scott M. Cohen, "Local Cloning of Entangled States", arXiv:1004.5126 [quant-ph], Phys. Rev. A 82, 022313 (2010).

  18. Vlad Gheorghiu and Shiang Yong Looi, "Construction of Equally Entangled Bases in Arbitrary Dimensions via Quadratic Gauss Sums and Graph States", arXiv:1004.1633 [quant-ph], Phys. Rev. A 81, 062341 (2010).

  19. Vlad Gheorghiu, Shiang Yong Looi and Robert B. Griffiths, "Location of Quantum Information in Additive Graph Codes", arXiv:0912.2017 [quant-ph], Phys. Rev. A 81, 032326 (2010).

  20. Shiang Yong Looi, Li Yi, Vlad Gheorghiu and Robert B. Griffiths, "Quantum Error Correcting Codes Using Qudit Graphs States", arXiv:0712.1979 [quant-ph], Phys. Rev. A 78, 042303 (2008).

  21. Vlad Gheorghiu and Robert B. Griffiths, "Separable Operations on Pure States", arXiv:0807.2360 [quant-ph], Phys. Rev. A 78, 020304 (Rapid Communications) (2008).

  22. Vlad Gheorghiu and Robert B. Griffiths, "Entanglement Transformations Using Separable Operations", arXiv:0705.0369 [quant-ph], Phys. Rev. A 76, 032310 (2007).


My personal GitHub repositories
The Quantum Software group at IQC

Below is a list of software products that I wrote:

Find me on Stackoverflow
Profile for vsoftco at Stack Overflow, Q&A for professional and enthusiast programmers An Elo-based rating system for Stack Overflow

Last modified: July 2017.
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