GeezerVison

About

I am the CEO and President of softwareQ Inc, an Adjunct Professor in the Department of Combinatorics and Optimization at the University of Waterloo, and an Affiliate of the Institute for Quantum Computing at the University of Waterloo.

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

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

Contact

Institute for Quantum Computing (IQC) at the University of Waterloo
200 University Avenue West, Waterloo, ON, N2L 3G1, Canada
Email: vgheorgh AT gmail DOT com
My PGP/GPG public key has key ID 0xA45F888F and fingerprint 5DD2 CB49 E895 59C9 CF4D CE27 429E 7839 A45F 888F. You can download my key from my website and cross-check my key on keybase.io. My PGP key was created on July 6, 2023.

Research

I am interested in quantum software and quantum architectures, applications of small-sized quantum computers (NISQ) to concrete optimization problems, fault-tolerant quantum processing, quantum communication, quantum and classical cryptography and classical/quantum separation.

Referee service

I am a referee/reviewer for: Natural Sciences and Engineering Research Council of Canada (NSERC), Nature, Physical Review Letters, Communications in Mathematical Physics, ACM Transactions on Quantum Computing, FOCS, New Journal of Physics, Quantum, Quantum Information Processing, Quantum Information and Computation, Quantum Science and Technology, Physical Review X Quantum, Physical Review A, Physics Letters A, International Journal of Quantum Information, Entropy, Optics Communications, IEEE Security & Privacy, IEEE Transactions on Quantum Engineering, Future Generation Computer Systems.

I also referee grant proposals and I am on the program committee of quantum computing conferences.

Publications

My h-index is 21, and my i-10 index is 31. For an up-to-date list, please see my Google Scholar profile.

Software

My personal GitHub repositories

I contribute to open source software. Below is a list of some of my favourite projects/code snippets I developed:

• Quantum++
  Modern C++ general purpose quantum computing library, composed solely of template header files. It uses the Eigen 3 linear algebra library and, if available, the OpenMP multi-processing library. Status: active, version 7.1.0 released on 28 October 2026 under the MIT License.


• staq
  Full-stack quantum processing toolkit. Status: active, version 3.5 released on 8 March 2024 under the MIT License.


• I am a member of the Open Quantum Safe Technical Steering Committee and a contributor to the Open Quantum Safe liboqs PQC library.


• liboqs-cpp
  C++ wrapper around Open Quantum Safe liboqs PQC library.


• liboqs-go
  Go wrapper around Open Quantum Safe liboqs PQC library.


• liboqs-python
  Python 3 wrapper around Open Quantum Safe liboqs PQC library.


• Design patterns
  My take on design patterns in modern C++.


• spell
  Tired of (miss)spelling your name during a phone call? spell.py does it for you, using phonetic alphabet(s) (NATO phonetic alphabet by default).


• pytexnumber
  Python 2/3 console program for renumbering LaTeX references (labels).


• cpptexnumber
  The C++11 version of pytexnumber above.


• Texnumber / GTexnumber
  Console/GUI Java program for renumbering LaTeX references (labels). The Java sources are included in the .jar files. The Netbeans project (including sources) is located here.
  • Description: same as pytexnumber above.
  • Usage: Unzip the archive then run the program with
    java -jar [G]Texnumber.jar