332 citations · 2k across the 60 of their papers we have counts for
62 papers
Exact chiral symmetry with quantum signal processing
Henry Lamm, Alessandro Roggero, Hersh Singh +1
We give a quantum signal processing (QSP) algorithm for the overlap fermion Hamiltonian which preserves the Ginsparg-Wilson relation up to a controllable error . Quantum simul…
Binary Gauss Stabilizers for Abelian Lattice Gauge Theories
Matteo Turco, Luca Spagnoli, Alessandro Roggero
Gauge theories and quantum error-correcting codes share the same underlying structure: both use constraints to identify a specific subspace of the full Hilbert space. In quantum er…
Schrödinger-Navier-Stokes Equation for the Quantum Simulation of Navier-Stokes Flows
Luca Cappelli, Sauro Succi, Monica Lacatus +2
The search for quantum-like wave formulations of the Navier-Stokes (Schrödinger-Navier-Stokes, SNS for short) equations describing classical dissipative fluids has met with increas…
Fault-Tolerant Resource Comparison of Qudit and Qubit Encodings for Diagonal Quadratic Operators
Samuel Godwood, Doğa Murat Kürkçüoğlu, Gabriel N. Perdue +2
Finite local Hilbert-space truncations arise naturally in quantum simulations of lattice field theories and motivate qudit encodings, but their fault-tolerant advantage over qubit…
Neutrino Flavor Evolution in High Flux Astrophysical Environments
Joseph Carlson, Alessandro Roggero, Duff Neill
We examine neutrino evolution in astrophysical environments where the neutrino flux is very large, including core-collapse supernovae and neutron star mergers. In these environment…
Qudit stabiliser codes for lattice gauge theories with matter
Luca Spagnoli, Alessandro Roggero, Nathan Wiebe
In this work we extend the connection between Quantum Error Correction (QEC) and Lattice Gauge Theories (LGTs) by showing that a gauge theory with prime dimension $N…
Block encoding of sparse matrices with a periodic diagonal structure
Alessandro Andrea Zecchi, Claudio Sanavio, Luca Cappelli +3
Block encoding is a successful technique used in several powerful quantum algorithms. In this work we provide an explicit quantum circuit for block encoding a sparse matrix with a…
Neutrino thermalization via randomization on a quantum processor
Oriel Kiss, Ivano Tavernelli, Francesco Tacchino +2
The dynamical evolution of neutrino flavor in supernovae can be modeled by an all-to-all spin Hamiltonian with random couplings. Simulating such two-local Hamiltonian dynamics rema…
Quantum Simulation of Nuclear Dynamics in First Quantization
Luca Spagnoli, Chiara Lissoni, Alessandro Roggero
The study of real time dynamics of nuclear systems is of great importance to provide theoretical predictions of cross sections relevant for both terrestrial experiments as well as…
Collective Neutrino Oscillations in Three Flavors on Qubit and Qutrit Processors
Luca Spagnoli, Noah Goss, Alessandro Roggero +9
Collective neutrino flavor oscillations are of primary importance in understanding the dynamic evolution of core-collapse supernovae and subsequent terrestrial detection, but also…
Inference of response functions with the help of machine learning algorithms
Doga Murat Kurkcuoglu, Alessandro Roggero, Gabriel N. Perdue +1
Response functions are a key quantity to describe the near-equilibrium dynamics of strongly-interacting many-body systems. Recent techniques that attempt to overcome the challenges…
Statistical Mechanics of Heteropolymers from Lattice Gauge Theory
Veronica Panizza, Alessandro Roggero, Philipp Hauke +1
Lattice models are valuable tools to gain insight into the statistical physics of heteropolymers. We rigorously map the partition function of these models into a vacuum expectation…
Phase-Space methods for neutrino oscillations: extension to multi-beams
Denis Lacroix, Angel Bauge, Bulent Yilmaz +3
The Phase-Space approach (PSA), which was originally introduced in [Lacroix et al., Phys. Rev. D 106, 123006 (2022)] to describe neutrino flavor oscillations for interacting neutri…
Spin response of neutron matter in ab initio approach
J. E. Sobczyk, W. Jiang, A. Roggero
We propose a general method embedded in the ab initio nuclear framework to reconstruct linear response functions and calculate sum rules. Within our approach, based on the Gaussian…
Restricted Boltzmann Machines Propagators for Auxiliary Field Diffusion Monte Carlo
Jordan M. R. Fox, Alessandro Lovato, Alessandro Roggero +1
The auxiliary field diffusion Monte Carlo method uses imaginary-time projection techniques to accurately solve the ground-state wave function of atomic nuclei and infinite nuclear…
Evaluation of phase shifts for non-relativistic elastic scattering using quantum computers
Francesco Turro, Kyle A. Wendt, Sofia Quaglioni +2
Simulations of scattering processes are essential in understanding the physics of our universe. Computing relevant scattering quantities from ab initio methods is extremely difficu…
Scattering Neutrinos, Spin Models, and Permutations
Duff Neill, Hanqing Liu, Joshua Martin +1
We consider a class of Heisenberg all-to-all coupled spin models inspired by neutrino interactions in a supernova with degrees of freedom. These models are characterized by a c…
Solving the homogeneous Bethe-Salpeter equation with a quantum annealer
Filippo Fornetti, Alex Gnech, Tobias Frederico +6
The homogeneous Bethe-Salpeter equation (hBSE), describing a bound system in a genuinely relativistic quantum-field theory framework, was solved for the first time by using a D-Wav…
Fault-tolerant simulation of Lattice Gauge Theories with gauge covariant codes
L. Spagnoli, A. Roggero, N. Wiebe
We show in this paper that a strong and easy connection exists between quantum error correction and Lattice Gauge Theories (LGT) by using the Gauge symmetry to construct an efficie…
Early Fault-Tolerant Quantum Algorithms in Practice: Application to Ground-State Energy Estimation
Oriel Kiss, Utkarsh Azad, Borja Requena +3
We investigate the feasibility of early fault-tolerant quantum algorithms focusing on ground-state energy estimation problems. In particular, we examine the computation of the cumu…
Quantum error mitigation for Fourier moment computation
Oriel Kiss, Michele Grossi, Alessandro Roggero
Hamiltonian moments in Fourier space - expectation values of the unitary evolution operator under a Hamiltonian at different times - provide a convenient framework to understand qu…
Time Scales in Many-Body Fast Neutrino Flavor Conversion
Ramya Bhaskar, Alessandro Roggero, Martin J. Savage
Time scales associated with many-body fast neutrino flavor conversions in core-collapse supernova are explored in the context of an effective two-flavor model with axial symmetry.…
Quantum Computing for High-Energy Physics: State of the Art and Challenges. Summary of the QC4HEP Working Group
Alberto Di Meglio, Karl Jansen, Ivano Tavernelli +43
Quantum computers offer an intriguing path for a paradigmatic change of computing in the natural sciences and beyond, with the potential for achieving a so-called quantum advantage…
Equilibration of quantum many-body fast neutrino flavor oscillations
Joshua D. Martin, Duff Neill, A. Roggero +2
Neutrino gases are expected to form in high density astrophysical environments, and accurately modeling their flavor evolution is critical to understanding such environments. In th…