Papers

Non-Markovian dissipation as a resource for quantum reservoir computing

L. Nigro, F. Monzani, E. Prati

arXiv:2609.40172

Non-Markovianity modelled and regulated with fractional derivatives: time subordination gives tunable, heavy-tailed relaxation whose information backflow redistributes reservoir memory towards recent inputs, improving short-delay memory capacity and nonlinear prediction.

@article{nigro2026nonmarkovian,
  title   = {Non-Markovian dissipation as a resource for quantum reservoir computing},
  author  = {Nigro, Luca and Monzani, Francesco and Prati, Enrico},
  journal = {arXiv preprint arXiv:2609.40172},
  year    = {2026}
}

Analog neutral-atom for in-memory processing in quantum reservoir computing

L. Nigro, G. L. Giorgi, E. Prati, R. Zambrini

arXiv:2609.28441

Controlled dissipation is strictly necessary to give neutral-atom reservoirs the echo state property, fading memory and separability. Performance peaks at the edge of quantum chaos, and as few as five atoms solve the Mackey-Glass time series without external classical buffering.

@article{nigro2026analog,
  title   = {Analog neutral-atom for in-memory processing in quantum reservoir computing},
  author  = {Nigro, Luca and Giorgi, Gian Luca and Prati, Enrico and Zambrini, Roberta},
  journal = {arXiv preprint arXiv:2609.28441},
  year    = {2026}
}

Quantum reservoir computing induced by controllable damping

E. Ricci, F. Monzani, L. Nigro, E. Prati

npj Quantum Information

Controlled rotations induce tunable damping in quantum circuits, giving stable, non-unital reservoir dynamics for temporal information processing without relying on intrinsic hardware noise.

@article{ricci2026damping,
  title   = {Quantum reservoir computing induced by controllable damping},
  author  = {Ricci, Emanuele and Monzani, Francesco and Nigro, Luca and Prati, Enrico},
  journal = {npj Quantum Information},
  year    = {2026},
  doi     = {10.1038/s41534-026-01229-8}
}

Leveraging quantum annealing for layout optimization

L. Nigro, S. Sala, A. Amendola, E. Prati

Advanced Quantum Technologies 8, e00358

Wind-farm layout optimisation cast as a QUBO and solved by quantum annealing reaches solutions an order of magnitude faster than Gurobi, with at most 3% lower power output.

@article{nigro2025layout,
  title   = {Leveraging Quantum Annealing for Layout Optimization},
  author  = {Nigro, Luca and Sala, Simone and Amendola, Alfonso and Prati, Enrico},
  journal = {Advanced Quantum Technologies},
  volume  = {8},
  pages   = {e00358},
  year    = {2025},
  doi     = {10.1002/qute.202500358}
}

Simulation of a three-nucleons system transition on quantum circuits

L. Nigro, C. Barbieri, E. Prati

Advanced Quantum Technologies 8, 2400371

A complete nuclear transition in tritium on a gate-based quantum computer: variational preparation of ground and excited states, and the magnetic-dipole transition probability via a linear combination of unitaries.

@article{nigro2025tritium,
  title   = {Simulation of a Three-Nucleons System Transition on Quantum Circuits},
  author  = {Nigro, Luca and Barbieri, Carlo and Prati, Enrico},
  journal = {Advanced Quantum Technologies},
  volume  = {8},
  pages   = {2400371},
  year    = {2025},
  doi     = {10.1002/qute.202400371}
}

Simulation of nuclear processes by a quantum computer

L. Nigro, C. Barbieri, E. Prati

Journal of Physics: Conference Series 3017, 012050

The key ingredients of a full nuclear transition simulation in tritium on four qubits, with the d(n, γ)t neutron capture compared against tritium de-excitation.

@inproceedings{nigro2025nuclear,
  title     = {Simulation of nuclear processes by a quantum computer},
  author    = {Nigro, Luca and Barbieri, Carlo and Prati, Enrico},
  booktitle = {Journal of Physics: Conference Series},
  volume    = {3017},
  pages     = {012050},
  year      = {2025},
  doi       = {10.1088/1742-6596/3017/1/012050}
}

Non-unital noise in a superconducting quantum computer as a computational resource for reservoir computing

F. Monzani, E. Ricci, L. Nigro, E. Prati

arXiv:2409.07886

Amplitude-damping noise, modelled as a non-unital channel, improves reservoir computing on time-dependent tasks by preventing the information loss caused by mid-circuit measurements.

Enforcing fading memory of noisy quantum echo state networks

F. Monzani, E. Ricci, L. Nigro, E. Prati

IEEE Quantum Week (QCE 2024), pp. 476–477

@inproceedings{monzani2024fading,
  title     = {Enforcing Fading Memory of Noisy Quantum Echo State Networks},
  author    = {Monzani, Francesco and Ricci, Emanuele and Nigro, Luca and Prati, Enrico},
  booktitle = {2024 IEEE International Conference on Quantum Computing and Engineering (QCE)},
  pages     = {476--477},
  year      = {2024},
  doi       = {10.1109/QCE60285.2024.10363}
}