28 citations · 128 across the 29 of their papers we have counts for
33 papers
Boundary-induced geometrical frustration in a square Rydberg-atom lattice
Marco Rigobello, Luka Pavešić, Daniel Jaschke +4
We study geometric defects in square-lattice Rydberg-atom arrays induced by lattice-size parity in the striated density-wave phase. While odd-sized lattices select a single striate…
Adaptive Reconstruction of Bosonic Quantum States
Vasilisa Usova, Phila Rembold, Ian Yang +4
Bosonic quantum systems provide a hardware-efficient platform for quantum information processing but remain challenging to characterise due to their large Hilbert space and the hig…
Phase transitions in quantum-circuit compilation
Andrea De Girolamo, Davide Rattacaso, Simone Notarnicola +2
Quantum-circuit compilation aims at finding an optimized realization of a target circuit under given constraints, e.g., the minimization of hardware-induced errors and the unitary-…
Observable Estimation in the Absence of Classical Verification
Samantha V. Barron, Bradley Mitchell, Vinay Tripathi +45
The predictive success of quantum mechanics underpins many areas of modern science, even as the exact simulation of large, interacting quantum systems remains beyond the reach of c…
False vacuum decay in a two-dimensional quantum spin system
Luka Pavešić, Ian G. Moss, Simone Montangero
False vacuum decay describes the relaxation of a metastable state through the nucleation and growth of bubbles of the stable phase. Despite describing a broad variety of phenomena…
Preparation and detection of quasiparticles for quantum simulations of scattering
Mattia Morgavi, Peter Majcen, Marco Rigobello +2
We introduce a method for the selective preparation and detection of quasiparticle wave packets, based on creation operators that generate dressed, localized excitations on top of…
Quantum algorithms for compact polymer thermodynamics
Davide Rattacaso, Daniel Jaschke, Antonio Trovato +2
Efficient sampling from ensembles of Hamiltonian cycles is critical for predicting the thermodynamic properties of compact polymers, with applications including modeling protein an…
Towards D quantum electrodynamics on a cold-atom quantum simulator
Peter Majcen, Jesse J. Osborne, Philipp Hauke +3
Cold atoms have become a powerful platform for quantum-simulating lattice gauge theories in higher spatial dimensions. However, such realizations have been restricted to the lowest…
Towards Tensor Network Models for Low-Latency Jet Tagging on FPGAs
Alberto Coppi, Ema Puljak, Lorenzo Borella +6
We present a systematic study of Tensor Network (TN) models $\unicode{x2013}$ Matrix Product States (MPS) and Tree Tensor Networks (TTN) $\unicode{x2013}$ for real-time jet tagging…
Superradiant decay in non-Markovian Waveguide Quantum Electrodynamics
Rosa Lucia Capurso, Giuseppe Calajó, Simone Montangero +5
An array of initially excited emitters coupled to a one-dimensional waveguide exhibits superradiant decay under the Born-Markov approximation, manifested as a coherent burst of pho…
Color code thresholds under circuit-level noise beyond the Pauli framework
Francesco Pio Barone, Daniel Jaschke, Ilaria Siloi +1
A quantum error correction code is assessed over its ability to correct errors in noisy quantum circuits. This task requires extensive simulations of faulty quantum circuits, which…
Optimal local basis truncation of lattice quantum many-body systems
Peter Majcen, Giovanni Cataldi, Pietro Silvi +1
We show how to optimally reduce the local Hilbert basis of lattice quantum many-body (QMB) Hamiltonians. The basis truncation exploits the most relevant eigenvalues of the estimate…
A new rung on the ladder: exploring topological frustration towards two dimensions
Alberto Giuseppe Catalano, Nora Reinić, Gianpaolo Torre +5
Topological frustration arises when boundary conditions impose geometric frustration in a quantum system, creating delocalized defects in the ground states and profoundly altering…
Scattering and induced false vacuum decay in the two-dimensional quantum Ising model
Luka Pavešić, Marco Di Liberto, Simone Montangero
We study scattering in the quantum Ising model in two dimensions. In the ordered phase, the spectrum contains a ladder of bound states and intertwined scattering resonances, which…
Quantum algorithms for equational reasoning
Davide Rattacaso, Daniel Jaschke, Marco Ballarin +2
As a cornerstone of automated reasoning, equational reasoning finds equivalences between symbolic expressions and fuels advances across scientific disciplines. Yet, its potential r…
The Augmented Tree Tensor Network Cookbook
Nora Reinić, Luka Pavešić, Daniel Jaschke +1
An augmented tree tensor network (aTTN) is a tensor network ansatz constructed by applying a layer of unitary disentanglers to a tree tensor network. The disentanglers absorb a par…
Disorder-Free Localization and Fragmentation in a Non-Abelian Lattice Gauge Theory
Giovanni Cataldi, Giuseppe Calajó, Pietro Silvi +2
We investigate how isolated quantum many-body systems dynamically equilibrate under non-Abelian gauge-symmetry constraints. By encoding gauge superselection sectors into static $\m…
Many-body quantum dimerization in 2D atomic arrays
Giuseppe Calajò, Matija Tečer, Simone Montangero +2
We consider a 2D atomic array coupled to different photonic environments, focusing on the half-filled excitation subspace, where strong photon interactions can give rise to complex…
Entanglement transitions in a boundary-driven open quantum many-body system
Darvin Wanisch, Nora Reinić, Daniel Jaschke +2
We introduce a numerical framework for integrating Markovian dynamics on tree tensor operator (TTO) ansatz states. This framework enables the simulation of both transient and stead…
Integer Factorization via Tensor Network Schnorr's Sieving
Marco Tesoro, Ilaria Siloi, Daniel Jaschke +2
Classical public-key cryptography standards rely on the Rivest-Shamir-Adleman (RSA) encryption protocol. The security of this protocol is based on the exponential computational com…
Benchmarking Quantum Red TEA on CPUs, GPUs, and TPUs
Daniel Jaschke, Marco Ballarin, Nora Reinić +2
We benchmark simulations of many-body quantum systems on heterogeneous hardware platforms using CPUs, GPUs, and TPUs. We compare different linear algebra backends, e.g., NumPy vers…
Quantum circuit compilation with quantum computers
Davide Rattacaso, Daniel Jaschke, Marco Ballarin +2
Compilation optimizes quantum algorithms performances on real-world quantum computers. To date, it is performed via classical optimization strategies. We introduce a class of quant…
Tensor Networks for Lattice Gauge Theories beyond one dimension: a Roadmap
Giuseppe Magnifico, Giovanni Cataldi, Marco Rigobello +4
Tensor network methods are a class of numerical tools and algorithms to study many-body quantum systems in and out of equilibrium, based on tailored variational wave functions. The…
Constrained dynamics and confinement in the two-dimensional quantum Ising model
Luka Pavešić, Daniel Jaschke, Simone Montangero
We investigate the dynamics of the quantum Ising model on two-dimensional square lattices up to spins. In the ordered phase, the model is predicted to exhibit dynami…