Research with Unitary Foundation

Unitary Foundation believes that research is important for quantum open source. We focus not only on our own research interests, but also building tools to enable others, like those in our microgrant program. Check out some of the many research projects we’ve been involved in or supported below!

Unitary Labs research with Mitiq, QuTiP and long-term projects

The Unitary Foundation research GitHub repo has source code for a selection of our research projects.

N. Lambert, E. Giguère, P. Menczel, B. Li, P. Hopf, G. Suárez, M. Gali, J. Lishman, R. Gadhvi, R. Agarwal, A. Galicia, N. Shammah, P. Nation, J. R. Johansson, S. Ahmed, S. Cross, A. Pitchford, F. Nori, QuTiP 5: The Quantum Toolbox in Python. arXiv preprint (2024), [2412.04705]
W. J. Zeng, F. Labib, V. Russo, Towards violations of Local Friendliness with quantum computers. arXiv preprint (2024), [2409.15302]
F. Labib, B. D. Clader, N. Stamatopoulos, W. J. Zeng, Quantum amplitude estimation from classical signal processing. arXiv preprint (2024), [2405.14697]
P. Lougovski, O. Parekh, J. Broz, M. Byrd, J.C. Chapman, Y. Chembo, W.A. de Jong, E. Figueroa, T.S. Humble, J. Larson, G. Quiroz, G. Ravi, N. Shammah, K.M. Svore, W. Wu, W.J. Zeng, Report for the ASCR Workshop on Basic Research Needs in Quantum Computing and Networking, January 7, 2024, United States, osti.gov/biblio/2001045, DOI:10.2172/2001045
A. Mari, V. Russo, Quantum error mitigation by layerwise Richardson extrapolation, arXiv preprint (2024), [2402.04000]
N. Shammah, A. Saha Roy, C. G. Almudever, S. Bourdeauducq, A. Butko, G. Cancelo, S. M. Clark, J. Heinsoo, L. Henriet, G. Huang, C. Jurczak, J. Kotilahti, A. Landra, R. LaRose, A. Mari, K. Nowrouzi, C. Ockeloen-Korppi, G. Prawiroatmodjo, I. Siddiqi, W. J. Zeng, Open Hardware in Quantum Technology, arXiv preprint (2023), [2309.17233] Accepted in APL Quantum
E. Pelofske, V. Russo, R. LaRose, A. Mari, D. Strano, A. Bärtschi, S. Eidenbenz, and W. J. Zeng Increasing the Measured Effective Quantum Volume with Zero Noise Extrapolation, arXiv (2023), [2306.15863]
M. A. Wahl, A. Mari, N. Shammah, W. J. Zeng, G. S. Ravi Zero noise extrapolation on logical qubits by scaling the error correction code distance, arxiv, (2023), [2304.14985], notebooks
D. Strano, B. Bollay, A. Blaauw, N. Shammah, W. J. Zeng, and A. Mari, Exact and approximate simulation of large quantum circuits on a single GPU, arXiv, (2023), [2304.1469], source code
V. Russo, A. Mari, N. Shammah, R. LaRose, and W. J. Zeng Testing platform-independent quantum error mitigation on noisy quantum computers, IEEE Transactions on Quantum Engineering, 4, (2022), [2210.07194], source code
B. McDonough, A. Mari, N. Shammah, N. T. Stemen, M. Wahl, W. J. Zeng, and P. P. Orth Automated quantum error mitigation based on probabilistic error reduction, IEEE/ACM Third International Workshop on Quantum Computing Software (QCS), 83-93, (2022), [2210.08611], source code
R. LaRose, A. Mari, V. Russo, D. Strano, and W. J. Zeng Error mitigation increases the effective quantum volume of quantum computers arXiv, (2022), [2203.05489], source code
R. LaRose, A. Mari, S. Kaiser, P. J. Karalekas, A. A. Alves, P. Czarnik, M. El Mandouh, M. H. Gordon, Y. Hindy, A. Robertson, P. Thakre, M. Wahl, D. Samuel, R. Mistri, M. Tremblay, N. Gardner, N. T. Stemen, N. Shammah, and W. J. Zeng Mitiq: A software package for error mitigation on noisy quantum computers, Quantum 6, 774 (2022), [DOI:10.22331], source code
T. G.-Tiron, Y. Hindy, R. LaRose, A. Mari, and W. J. Zeng Digital zero noise extrapolation for quantum error mitigation, 2020 IEEE International Conference on Quantum Computing and Engineering (QCE), 306-316, (2021), [2005.10921]
A. Mari, N. Shammah, and W. J. Zeng, Extending quantum probabilistic error cancellation by noise scaling, Phys. Rev. A, 104, 052607, (2021), [104.052607]
B. Li, S. Ahmed, S. Saraogi, N. Lambert, F. Nori, A. Pitchford, N. Shammah Pulse-level noisy quantum circuits with QuTiP, Quantum, 6, 630, (2022), [2105.09902]
H. Silvério, S. Grijalva, C. Dalyac, L. Leclerc, P. J. Karalekas, N. Shammah, M. Beji, L.-P. Henry, and L. Henriet Pulser: An open-source package for the design of pulse sequences in programmable neutral-atom arrays Quantum, 6, 629, (2022), [2104.15044]
G. S. Ravi, K. N. Smith, P. Gokhale, A. Mari, N. Earnest, A. J.-Abhari, F. T. Chong VAQEM: A Variational Approach to Quantum Error Mitigation IEEE International Symposium on High-Performance Computer Architecture (HPCA), (2021), [202700a288/1Ds0fvoYbCw]
K. Schultz, R. LaRose, A. Mari, G. Quiroz, N. Shammah, B. D. Clader, and W. J. Zeng, Reducing the impact of time-correlated noise on zero-noise extrapolation, Phys. Rev. A 106, 052406 (2022), [2201.11792]

Other Unitary Foundation staff research

T. Gupta, S. Murshid, V. Russo, Somshubhro Bandyopadhyay Optimal discrimination of quantum sequences, [2409.08705]
A. Philip, S. Rethinasamy, V. Russo, M. M. Wilde, “Schrödinger as a Quantum Programmer: Estimating Entanglement via Steering”. Quantum 8, 1366, (2024), [2303.07911]
V. Russo, S. Bandyopadhyay, “Distinguishing a maximally entangled basis using LOCC and shared entanglement”. arXiv preprint (2024), [2406.13430]
Travis L. Scholten, Carl J. Williams, Dustin Moody, Michele Mosca, William Hurley (“whurley”), William J. Zeng, Matthias Troyer, Jay M. Gambetta, Assessing the Benefits and Risks of Quantum Computers, arXiv (2024), [2401.16317]
A. Mari, Counting collisions in random circuit sampling for benchmarking quantum computers, arXiv (2023) [2312.04222]
N. Johnston, V. Russo, J. Sikora Tight bounds for antidistinguishability and circulant sets of pure quantum states, arXiv (2023), [2311.17047]
C. Paddock, V. Russo, T. Silverthorne, and W. Slofstra, Arkhipov’s theorem, graph minors, and linear system nonlocal games, Algebraic Combinatorics, 6, 1119-1162, (2023), [2205.0465]
G. Piccitto, M. Wauters, F. Nori, and N. Shammah Symmetries and conserved quantities of boundary time crystals in generalized spin models Phys. Rev. B, 104, Pages 014307, (2021), [2101.05710]
G. Zhang, Z. Chen, D. Xu, N. Shammah, M. Liao, T. Li, L. Tong, S. Zhu, F. Nori, and J. Q. You, Exceptional Point and Cross-Relaxation Effect in a Hybrid Quantum System, PRX Quantum, 2, 020307, (2021), [2104.09811]
A. Mari, T. R. Bromley, and N, Killoran Estimating the gradient and higher-order derivatives on quantum hardware, Phys. Rev. A, 103, 012405, (2020), [2008.06517]
J. Alonso, N. Shammah, S. Ahmed, F. Nori, and J. Dressel Diagnosing quantum chaos with out-of-time-ordered-correlator quasiprobability in the kicked-top model arXiv, (2022), [2201.08175]

Microgrant-supported research

Andi Gu, Salvatore F. E. Oliviero, Lorenzo Leone, Doped stabilizer states in many-body physics and where to find them, arXiv, (2024), 2403.14912
G. Watkins, H. M. Nguyen, V. Seshadri, K. Watkins, S. Pearce, Hoi-K. Lau and A. Paler, Lattice Surgery Compiler (LSC): A High Performance Compiler for Very Large Scale Surface Code Computations, arXiv, (2023), [2302.02459]
A. Tambde, A Programming Language For Quantum Oracle Construction, arXiv, (2021), [2110.12487]
U. Azad and A. Sinha, qLEET: Visualizing Loss Landscapes, Expressibility, Entangling Power and Training Trajectories for Parameterized Quantum Circuits, Quantum Inf Process 22, 256 (2023), [2205.02095], doi:10.1007/s11128-023-03998-z
Z. C. Seskir et al, Quantum Games and Interactive Tools for Quantum Technologies Outreach and Education, Optical Engineering, Vol. 61, Issue 8, 081809, (2022), [2202.07756], doi:10.1117/1.OE.61.8.081809
A. K. Obeid, P. Bruza, C. Moreira, A. Bruns and D. Angus, An Extension Of Combinatorial Contextuality For Cognitive Protocols, arXiv, (2022), [2202.08209]
K. Jankiewicz, P. Migdal, and P. Grabarz, Virtual Lab by Quantum Flytrap: Interactive simulation of quantum mechanics, Association for Computing Machinery, Article 175, 1–4, (2021), doi:10.1145/3491101.3519885
V. Russo, toqito — Theory of quantum information toolkit: A Python package for studying quantum information, Journal of Open Source Software, 6(61), 3082, (2021), doi:10.21105/joss.03082
O. Lockwood, Optimizing Quantum Variational Circuits with Deep Reinforcement Learning, arXiv, (2022), [2109.03188]
J. Ruffinelli, E. Fortes, M. Larocca and D. Wisniacki, Loschmidt echo approach to Krylov-subspace approximation error estimation, arXiv, (2021), [2107.09805]
Martin Larocca, Diego Wisniacki, K-GRAPE: A Krylov Subspace approach for the efficient control of quantum many-body dynamics, Phys. Rev. A 103, 023107 (2021), [2010.03598], doi:10.1103/PhysRevA.103.023107
B. Tan and J. Cong, Optimality Study of Existing Quantum Computing Layout Synthesis Tools, in IEEE Transactions on Computers, vol. 70, no. 9, pp. 1363-1373, (2021), [2002.09783(https://arxiv.org/abs/2002.09783)], doi: 10.1109/TC.2020.3009140.
Optimality Study of Existing Quantum Computing Layout Synthesis Tools
S. Diadamo, J. Nötzel, B. Zanger and M. M. Beşe, QuNetSim: A Software Framework for Quantum Networks, in IEEE Transactions on Quantum Engineering, vol. 2, pp. 1-12, (2021), Art no. 2502512, [2003.06397], doi: 10.1109/TQE.2021.3092395
AK. Obeid , PD. Bruza and P. Wittek, Evaluating probabilistic programming languages for simulating quantum correlations PLoS ONE 14(1): e0208555. (2020), [1811.04424], doi:10.1371/journal.pone.0208555
R. LaRose and B. Coyle, Robust data encodings for quantum classifiers, Phys. Rev. A 102, 032420 (2020), [2003.01695], doi:10.1103/PhysRevA.102.032420
A. Kissinger and J. van de Wetering, PyZX: Large Scale Automated Diagrammatic Reasoning, arXiv (2020), [1904.04735]
A. Kissinger and J. van de Wetering Reducing T-count with the ZX-calculus, Phys. Rev. A 102, 022406 (2020), [1903.10477], doi:10.1103/PhysRevA.102.022406
C. Bravo-Prieto, J. Lumbreras-Zarapico1, L. Tagliacozzo, and J.Latorre, Scaling of variational quantum circuit depth for condensed matter systems, Quantum 4, 272 (2020), [2002.06210], doi:10.22331/q-2020-05-28-272

We are now Unitary Foundation! Read more on our blog!

Research with Unitary Foundation

Unitary Labs research with Mitiq, QuTiP and long-term projects

Other Unitary Foundation staff research

Microgrant-supported research

Stay updated on our work