71 citations · 309 across the 21 of their papers we have counts for
21 papers
Engineering of non-Hermitian interactions in digital qudit quantum simulators
Matteo M. Wauters, Paolo Boschetto, Edoardo Ballini +2
Non-Hermitian Hamiltonians are a fascinating class of many-body models that describe the effective dynamics of quantum systems interacting with the environment through particle, en…
When the center matters: color screening and gluelumps in dihedral lattice gauge theories
Pavel P. Popov, Edoardo Ballini, Alberto Bottarelli +4
Confinement is one of the hallmarks of quantum chromodynamics (QCD), but its first-principles characterization remains elusive. We show that discrete non-Abelian lattice gauge theo…
Quantum Resources in Non-Abelian Lattice Gauge Theories: Nonstabilizerness, Multipartite Entanglement, and Fermionic Non-Gaussianity
Gopal Chandra Santra, Julius Mildenberger, Edoardo Ballini +3
Lattice gauge theories (LGTs) represent one of the most ambitious goals of quantum simulation. From a practical implementation perspective, non-Abelian theories present significant…
Symmetry verification for noisy quantum simulations of non-Abelian lattice gauge theories
Edoardo Ballini, Julius Mildenberger, Matteo M. Wauters +1
Non-Abelian gauge theories underlie our understanding of fundamental forces of modern physics. Simulating them on quantum hardware is an outstanding challenge in the rapidly evolvi…
Engineering a Josephson junction chain for the simulation of the clock model
Matteo M. Wauters, Lorenzo Maffi, Michele Burrello
The continuous improvement of fabrication techniques and high-quality semiconductor-superconductor interfaces allowed for unprecedented tunability of Josephson junction arrays (JJA…
A Monte Carlo Tree Search approach to QAOA: finding a needle in the haystack
Andoni Agirre, Evert Van Nieuwenburg, Matteo M. Wauters
The search for quantum algorithms to tackle classical combinatorial optimization problems has long been one of the most attractive yet challenging research topics in quantum comput…
Symmetry-protection Zeno phase transition in monitored lattice gauge theories
Matteo M. Wauters, Edoardo Ballini, Alberto Biella +1
Quantum measurements profoundly influence system dynamics. They lead to complex nonequilibrium phenomena like the quantum Zeno effect, and they can be used for mitigating errors in…
Thouless pumping in Josephson junction arrays
Stavros Athanasiou, Ida E. Nielsen, Matteo M. Wauters +1
Recent advancements in fabrication techniques have enabled unprecedented clean interfaces and gate tunability in semiconductor-superconductor heterostructures. Inspired by these de…
The topological Kondo model out of equilibrium
Matteo M. Wauters, Chia-Min Chung, Lorenzo Maffi +1
The topological Kondo effect is a genuine manifestation of the nonlocality of Majorana modes. We investigate its out-of-equilibrium signatures in a model with a Cooper-pair box hos…
Simulations of the dynamics of quantum impurity problems with matrix product states
Matteo M. Wauters, Chia-Min Chung, Lorenzo Maffi +1
The Anderson impurity model is a paradigmatic example in the study of strongly correlated quantum systems and describes an interacting quantum dot coupled to electronic leads. In t…
Reusability Report: Comparing gradient descent and monte carlo tree search optimization of quantum annealing schedules
Matteo M. Wauters, Evert van Nieuwenburg
We provide a reusability report of the method presented by Chen et al. in "Optimizing quantum annealing schedules with Monte Carlo tree search enhanced with neural networks" and ad…
Multiterminal transport spectroscopy of subgap states in Coulomb-blockaded superconductors
Rubén Seoane Souto, Matteo M. Wauters, Karsten Flensberg +2
Subgap states are responsible for the low-bias transport features of hybrid superconducting--semiconducting devices. Here, we analyze the local and nonlocal differential conductanc…
Matrix product state simulations of quantum quenches and transport in Coulomb blockaded superconducting devices
Chia-Min Chung, Matteo M. Wauters, Michele Burrello
Superconducting devices subject to strong charging energy interactions and Coulomb blockade are one of the key elements for the development of nanoelectronics and constitute common…
Electronic transport in double-nanowire superconducting islands with multiple terminals
Alexandros Vekris, Juan Carlos Estrada Saldaña, Thomas Kanne +7
We characterize in-situ grown parallel nanowires bridged by a superconducting island. The magnetic-field and temperature dependence of Coulomb blockade peaks measured across differ…
Two-dimensional lattice gauge theory on a near-term quantum simulator: variational quantum optimization, confinement, and topological order
Luca Lumia, Pietro Torta, Glen B. Mbeng +4
We propose an implementation of a two-dimensional lattice gauge theory model on a shallow quantum circuit, involving a number of single and two-qubits gates comparab…
Symmetries and conserved quantities of boundary time crystals in generalized spin models
Giulia Piccitto, Matteo Wauters, Franco Nori +1
We investigate how symmetries and conserved quantities relate to the occurrence of the boundary time crystal (BTC) phase in a generalized spin model with Lindblad dissipation. BTCs…
Reinforcement Learning assisted Quantum Optimization
Matteo M. Wauters, Emanuele Panizon, Glen B. Mbeng +1
We propose a reinforcement learning (RL) scheme for feedback quantum control within the quan-tum approximate optimization algorithm (QAOA). QAOA requires a variational minimization…
Polynomial scaling of QAOA for ground-state preparation of the fully-connected p-spin ferromagnet
Matteo M. Wauters, Glen Bigan Mbeng, Giuseppe E. Santoro
We show that the quantum approximate optimization algorithm (QAOA) can construct with polynomially scaling resources the ground state of the fully-connected p-spin Ising ferromagne…
Localization, topology and quantized transport in disordered Floquet systems
Matteo M. Wauters, Angelo Russomanno, Roberta Citro +2
We investigate the transition induced by disorder in a periodically-driven one-dimensional model displaying quantized topological transport. We show that, while instantaneous eigen…
On the quantization of the Hall conductivity in the Harper-Hofstadter model
Matteo M. Wauters, Giuseppe E. Santoro
We study the robustness of the quantization of the Hall conductivity in the Harper-Hofstadter model towards the details of the protocol with which a longitudinal uniform driving fo…
Direct comparison of quantum and simulated annealing on a fully-connected Ising ferromagnet
Matteo M. Wauters, Rosario Fazio, Hidetoshi Nishimori +1
We compare the performance of quantum annealing (QA, through Schrödinger dynamics) and simulated annealing (SA, through a classical master equation) on the -spin infinite range…