Conveners
Quantum Simulation
- Francesco Pederiva (Istituto Nazionale di Fisica Nucleare)
- Francesco Pederiva (TIFP)
Quantum Simulation
- Marco Cè (Università di Milano-Bicocca)
Quantum Simulation
- Concezio Bozzi (Istituto Nazionale di Fisica Nucleare)
Description
Digital and analog simulation of physical systems, including simulation
methods, algorithms, and practical use-cases.
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Alessandro Roggero (Istituto Nazionale di Fisica Nucleare)04/02/2026, 14:30
An accurate description of many-body dynamics is a major challenge for classical simulation techniques. Hamiltonian simulation on digital quantum computers offer the possibility of reducing the computational cost when tackling these problems. In this talk, I will discuss recent advances in the simulation of both nuclear and neutrino systems using quantum computers and show some results...
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Darvin Wanisch (University of Padova)04/02/2026, 14:55
QuantumTEA is an open-source tensor-network library for simulating and analysing quantum many-body systems in regimes directly relevant to current quantum-simulation and quantum-computation experiments. By providing efficient tools for modelling both unitary and dissipative dynamics and for extracting physical observables and entanglement measures, QuantumTEA enables detailed exploration,...
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Prof. Pietro Faccioli (University of Milano-Bicocca and INFN Milano-Bicocca)04/02/2026, 15:20
The sampling of dense ensembles of self-avoiding polymers provides a paradigmatically hard problem in statistical mechanics and computational physics, even when resorting to minimalistic lattice models. In a series of recent studies, we addressed the question whether these computational limitations can be overcome by quantum annealers or by resorting quantum-inspired algorithms. We show that...
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Luca Spagnoli (Istituto Nazionale di Fisica Nucleare)04/02/2026, 15:45
Collective neutrino flavor oscillations are of primary importance in understanding the dynamic evolution of core-collapse supernovae and subsequent terrestrial detection, but also among the most challenging aspects of numerical simulations. This situation is complicated by the quantum many-body nature of the problem due to neutrino-neutrino interactions, which demands a quantum treatment. An...
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Enrico Rinaldi (Quantinuum)05/02/2026, 16:45
Trapped-ion quantum computers based on the QCCD architecture are a scalable and high-fidelity quantum platform for the explorations of lattice gauge theory phenomena.
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Quantinuum Systems, based on such technology, are among the most utilized quantum computers to study simplified models of QCD in 1 and 2 spatial dimensions.
They are a remarkable tool in improving the development of quantum... -
Rodolfo Carobene (University of Milano-Bicocca and INFN Milano-Bicocca)05/02/2026, 17:05
We present a family of local fermion-to-qudit mappings that exploit four-level systems to encode fermionic degrees of freedom with local qudit operators. By tailoring the mappings to both spinless and spinful fermions, we achieve lower qudit weight and shallower circuit constructions compared with standard fermion encodings such as the Jordan–Wigner transformation. The resulting...
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Shima Amirentezari (University of Padova)05/02/2026, 17:25
Finding the ground state of many-body systems is a central challenge in statistical physics and combinatorial optimization. Hard optimization problems can be mapped onto spin-glass–like Hamiltonians whose ground-state configurations encode valid solutions. In this work, we introduce a quantum-inspired tensor network method to tackle this class of problems. Our approach extends standard quantum...
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Davide Cugini (Università di Pavia)05/02/2026, 17:45
Quantum state preparation is a central challenge in quantum computation and quantum simulation, enabling the exploration of complex many-body phenomena in Quantum Mechanics, Quantum Field Theory, and Quantum Chemistry. Existing paradigms such as Variational Quantum Algorithms (VQAs) and Adiabatic Preparation (AP) offer viable pathways, but each suffers from intrinsic...
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ALVARO SAIZ CASTILLO (UNIVERSIDAD DE SEVILLA)05/02/2026, 18:05
The Lipkin-Meshkov-Glick model (Lipkin model for short) describes a two-level system of N particles interacting with a long-range interaction, which is further generalized by adding an anharmonicity term with an extra control parameter. It is of interest in nuclear physics as a simple non-trivial model with two symmetry configurations that give rise to two distinct quantum phases. In this...
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Fabio Chiarello (IFN-CNR)06/02/2026, 11:15
We study a class of driven dispersive resonator–qubit systems, consisting of a single resonator coupled to a network of qubits, with the interaction treated in the dispersive regime. The system dynamics is analyzed under different types of input fields, ranging from semiclassical electromagnetic drives to single-photon quantum excitations.
We develop a set of simplified theoretical models...
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Matteo Grotti (Istituto Nazionale di Fisica Nucleare)06/02/2026, 11:40
We study probabilistic cellular automata (PCA) and quantum cellular automata (QCA) as frameworks for solving the Maximum Independent Set (MIS) problem. We first introduce a synchronous PCA whose dynamics drives
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the system toward the manifold of maximal independent sets. Numerical evidence shows that the MIS convergence
probability increases significantly as the activation probability p → 1,... -
Marco Intini (Università di Pisa, INFN Pisa)06/02/2026, 12:05
In this talk, we present a new approach to improve the accuracy of ground state approximations in Variational Quantum Eigensolver (VQE) algorithms. We employ subspace representations where orthogonality is enforced via "soft-coded" constraints within the cost function, rather than "hard-coded" at the circuit level.
Similar to other subspace-based methods like Subspace-Search VQE (SSVQE) and...
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Ilaria Siloi (Istituto Nazionale di Fisica Nucleare)
Optimization problems are commonly formulated through Hamiltonians whose ground states encode the desired solutions. We have recently approached such problems using tensor-network methods and variational ground-state search, applying these techniques to real-world challenges such as RSA factorization [1] and satellite mission planning [2]. Here we introduce an alternative quantum route based...
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