277 citations · 916 across the 28 of their papers we have counts for
27 papers
Quantum Cellular Automata on a Dual-Species Rydberg Processor
Ryan White, Vikram Ramesh, Alexander Impertro +6
As quantum devices scale to larger and larger sizes, a significant challenge emerges in scaling their coherent controls accordingly. Quantum cellular automata (QCAs) constitute a p…
High-fidelity entanglement and coherent multi-qubit mapping in an atom array
Aruku Senoo, Alexander Baumgärtner, Joanna W. Lis +5
Neutral atoms in optical tweezer arrays possess broad applicability for quantum information science, in computing, simulation, and metrology. Among atomic species, Ytterbium-171 is…
Adiabatic echo protocols for robust quantum many-body state preparation
Zhongda Zeng, Giuliano Giudici, Aruku Senoo +3
Entangled many-body states are a key resource for quantum technologies. Yet their preparation through analog control of interacting quantum systems is often hindered by experimenta…
Fast entangling gates for Rydberg atoms via resonant dipole-dipole interaction
Giuliano Giudici, Stefano Veroni, Giacomo Giudice +2
The advent of digital neutral-atom quantum computers relies on the development of fast and robust protocols for high-fidelity quantum operations. In this work, we introduce a novel…
Learning symmetry-protected topological order from trapped-ion experiments
Nicolas Sadoune, Ivan Pogorelov, Claire L. Edmunds +6
Classical machine learning has proven remarkably useful in post-processing quantum data, yet typical learning algorithms often require prior training to be effective. In this work,…
Quantum dimer models with Rydberg gadgets
Zhongda Zeng, Giuliano Giudici, Hannes Pichler
The Rydberg blockade mechanism is an important ingredient in quantum simulators based on neutral atom arrays. It enables the emergence of a rich variety of quantum phases of matter…
Unraveling PXP Many-Body Scars through Floquet Dynamics
Giuliano Giudici, Federica Maria Surace, Hannes Pichler
Quantum scars are special eigenstates of many-body systems that evade thermalization. They were first discovered in the PXP model, a well-known effective description of Rydberg ato…
Variational manifolds for ground states and scarred dynamics of blockade-constrained spin models on two and three dimensional lattices
Joey Li, Giuliano Giudici, Hannes Pichler
We introduce a variational manifold of simple tensor network states for the study of a family of constrained models that describe spin-1/2 systems as realized by Rydberg atom array…
Classification and emergence of quantum spin liquids in chiral Rydberg models
Poetri Sonya Tarabunga, Giuliano Giudici, Titas Chanda +1
We investigate the nature of quantum phases arising in chiral interacting Hamiltonians recently realized in Rydberg atom arrays. We classify all possible fermionic chiral spin liqu…
Disorder-Free Localization as a Purely Classical Effect
Pablo Sala, Giuliano Giudici, Jad C. Halimeh
Disorder-free localization (DFL) is an ergodicity breaking mechanism that has been shown to occur in lattice gauge theories in the quench dynamics of initial states spanning an ext…
Integrable Digital Quantum Simulation: Generalized Gibbs Ensembles and Trotter Transitions
Eric Vernier, Bruno Bertini, Giuliano Giudici +1
The Trotter-Suzuki decomposition is a promising avenue for digital quantum simulation (DQS), approximating continuous-time dynamics by discrete Trotter steps of duration . Recen…
Unsupervised Interpretable Learning of Phases From Many-Qubit Systems
Nicolas Sadoune, Giuliano Giudici, Ke Liu +1
Experimental progress in qubit manufacturing calls for the development of new theoretical tools to analyze quantum data. We show how an unsupervised machine-learning technique can…
Trimer states with topological order in Rydberg atom arrays
Giacomo Giudice, Federica Maria Surace, Hannes Pichler +1
Trimers are defined as two adjacent edges on a graph. We study the quantum states obtained as equal-weight superpositions of all trimer coverings of a lattice, with the constraint…
Locality optimization for parent Hamiltonians of Tensor Networks
Giuliano Giudici, J. Ignacio Cirac, Norbert Schuch
Tensor Network states form a powerful framework for both the analytical and numerical study of strongly correlated phases. Vital to their analytical utility is that they appear as…
Dynamical preparation of quantum spin liquids in Rydberg atom arrays
Giuliano Giudici, Mikhail D. Lukin, Hannes Pichler
We theoretically analyze recent experiments [G. Semeghini et al., Science 374, 1242 (2021)] demonstrating the onset of a topological spin liquid using a programmable quantum simula…
Temporal entanglement, quasiparticles and the role of interactions
Giacomo Giudice, Giuliano Giudici, Michael Sonner +4
In quantum many-body dynamics admitting a description in terms of non-interacting quasiparticles, the Feynman-Vernon influence matrix (IM), encoding the effect of the system on the…
Exact many-body scars and their stability in constrained quantum chains
Federica Maria Surace, Matteo Votto, Eduardo Gonzalez Lazo +3
Quantum scars are non-thermal eigenstates characterized by low entanglement entropy, initially detected in systems subject to nearest-neighbor Rydberg blockade, the so called PXP m…
Weak-ergodicity-breaking via lattice supersymmetry
Federica Maria Surace, Giuliano Giudici, Marcello Dalmonte
We study the spectral properties of -dimensional supersymmetric lattice models. We find systematic departures from the eigenstate thermalization hypothesis (ETH) in the fo…
Breakdown of ergodicity in disordered U(1) lattice gauge theories
Giuliano Giudici, Federica Maria Surace, Joel Etaya Ebot +2
We show how U(1) lattice gauge theories display key signatures of ergodicity breaking in the presence of a random charge background. Contrary to the widely studied case of spin mod…
Tunneling in projective quantum Monte Carlo simulations with guiding wave functions
T. Parolini, E. M. Inack, G. Giudici +1
Quantum tunneling is a valuable resource exploited by quantum annealers to solve complex optimization problems. Tunneling events also occur during projective quantum Monte Carlo (P…
Entanglement Hamiltonian of quantum critical chains and conformal field theories
T. Mendes-Santos, G. Giudici, M. Dalmonte +1
We consider a lattice version of the Bisognano-Wichmann (BW) modular Hamiltonian as an ansatz for the bipartite entanglement Hamiltonian of the quantum critical chains. Using numer…
Measuring von Neumann entanglement entropies without wave functions
T. Mendes-Santos, G. Giudici, R. Fazio +1
We present a method to measure the von Neumann entanglement entropy of ground states of quantum many-body systems which does not require access to the system wave function. The tec…
Lattice gauge theories and string dynamics in Rydberg atom quantum simulators
Federica M. Surace, Paolo P. Mazza, Giuliano Giudici +3
Gauge theories are the cornerstone of our understanding of fundamental interactions among particles. Their properties are often probed in dynamical experiments, such as those perfo…
Diagnosing Potts criticality and two-stage melting in one-dimensional hard-boson models
Giuliano Giudici, Adriano Angelone, Giuseppe Magnifico +4
We investigate a model of hard-core bosons with infinitely repulsive nearest- and next-nearest-neighbor interactions in one dimension, introduced by Fendley, Sengupta and Sachdev i…