233 citations · 904 across the 28 of their papers we have counts for
30 papers
Benchmarking a randomized quantum algorithm for estimating expectation values of molecular observables
Anna Schroeder, Gian-Luca R. Anselmetti, Matthias Degroote +5
Randomized quantum algorithms for the estimation of expectation values of molecular observables offer a promising route to early fault-tolerant quantum advantage by trading circuit…
A New Angle on Quantum Subspace Diagonalization for Quantum Chemistry
Xeno De Vriendt, Jacob Bringewatt, Nik O. Gjonbalaj +5
Quantum subspace diagonalization and quantum Krylov algorithms offer a feasible, pre- or early-fault tolerant alternative to quantum phase estimation for using quantum computers to…
Analog QAOA with Bayesian Optimisation on a neutral atom QPU
Simone Tibaldi, Lucas Leclerc, Davide Vodola +2
This study explores the implementation of the Quantum Approximate Optimisation Algorithm (QAOA) in its analog form using a neutral atom quantum processing unit to solve the Maximum…
The random coupled-plaquette gauge model and the surface code under circuit-level noise
Manuel Rispler, Davide Vodola, Markus Müller +1
We map the decoding problem of the surface code under depolarizing and syndrome noise to a disordered spin model, which we call the random coupled-plaquette gauge model (RCPGM). By…
Ion-Based Quantum Computing Hardware: Performance and End-User Perspective
Thomas Strohm, Karen Wintersperger, Florian Dommert +6
This is the second paper in a series of papers providing an overview of different quantum computing hardware platforms from an industrial end-user perspective. It follows our first…
Digitized Counterdiabatic Quantum Algorithms for Logistics Scheduling
Archismita Dalal, Iraitz Montalban, Narendra N. Hegade +7
We study a job shop scheduling problem for an automatized robot in a high-throughput laboratory and a travelling salesperson problem with recently proposed digitized counterdiabati…
Potential of quantum scientific machine learning applied to weather modelling
Ben Jaderberg, Antonio A. Gentile, Atiyo Ghosh +5
In this work we explore how quantum scientific machine learning can be used to tackle the challenge of weather modelling. Using parameterised quantum circuits as machine learning m…
Classical and quantum cost of measurement strategies for quantum-enhanced auxiliary field Quantum Monte Carlo
Matthew Kiser, Anna Schroeder, Gian-Luca R. Anselmetti +4
Quantum-enhanced auxiliary field quantum Monte Carlo (QC-AFQMC) uses output from a quantum computer to increase the accuracy of its classical counterpart. The algorithm requires th…
Quantum-enhanced quantum Monte Carlo: an industrial view
Maximilian Amsler, Peter Deglmann, Matthias Degroote +10
In this work, we test a recently developed method to enhance classical auxiliary-field quantum Monte Carlo (AFQMC) calculations with quantum computers against examples from chemist…
Study of the long-range transverse field Ising model with fermionic Gaussian states
Michael P. Kaicher, Davide Vodola, Simon B. Jäger
We numerically study the one-dimensional long-range Transverse Field Ising Model (TFIM) in the antiferromagnetic (AFM) regime at zero temperature using Generalized Hartree-Fock (GH…
Bayesian Optimization for QAOA
Simone Tibaldi, Davide Vodola, Edoardo Tignone +1
The Quantum Approximate Optimization Algorithm (QAOA) adopts a hybrid quantum-classical approach to find approximate solutions to variational optimization problems. In fact, it rel…
Unsupervised and supervised learning of interacting topological phases from single-particle correlation functions
Simone Tibaldi, Giuseppe Magnifico, Davide Vodola +1
The recent advances in machine learning algorithms have boosted the application of these techniques to the field of condensed matter physics, in order e.g. to classify the phases o…
Analytical and experimental study of center line miscalibrations in Mølmer-Sørensen gates
Fernando Martínez-García, Lukas Gerster, Davide Vodola +4
A major challenge for the realisation of useful universal quantum computers is achieving high fidelity two-qubit entangling gate operations. However, calibration errors can affect…
Experimental Bayesian calibration of trapped ion entangling operations
Lukas Gerster, Fernando Martínez-García, Pavel Hrmo +7
The performance of quantum gate operations is experimentally determined by how correct operational parameters can be determined and set, and how stable these parameters can be main…
Characterizing quantum instruments: from non-demolition measurements to quantum error correction
Roman Stricker, Davide Vodola, Alexander Erhard +7
In quantum information processing quantum operations are often processed alongside measurements which result in classical data. Due to the information gain of classical measurement…
Graph Partitioning into Hamiltonian Subgraphs on a Quantum Annealer
Eugenio Cocchi, Edoardo Tignone, Davide Vodola
We demonstrate that a quantum annealer can be used to solve the NP-complete problem of graph partitioning into subgraphs containing Hamiltonian cycles of constrained length. We pre…
Fundamental thresholds of realistic quantum error correction circuits from classical spin models
Davide Vodola, Manuel Rispler, Seyong Kim +1
Mapping quantum error correcting codes to classical disordered statistical mechanics models and studying the phase diagram of the latter has proven a powerful tool to study the fun…
Deterministic correction of qubit loss
Roman Stricker, Davide Vodola, Alexander Erhard +7
The loss of qubits - the elementary carriers of quantum information - poses one of the fundamental obstacles towards large-scale and fault-tolerant quantum information processors.…
Analytical percolation theory for topological color codes under qubit loss
David Amaro, Jemma Bennett, Davide Vodola +1
Quantum information theory has shown strong connections with classical statistical physics. For example, quantum error correcting codes like the surface and the color code present…
gauge theories coupled to topological fermions: QED with a quantum-mechanical angle
G. Magnifico, D. Vodola, E. Ercolessi +3
We present a detailed study of the topological Schwinger model [Phys. Rev. D 99, 014503 (2019)], which describes (1+1) quantum electrodynamics of an Abelian gauge field coup…
Adaptive Bayesian phase estimation for quantum error correcting codes
F. Martínez-García, D. Vodola, M. Müller
Realisation of experiments even on small and medium-scale quantum computers requires an optimisation of several parameters to achieve high-fidelity operations. As the size of the q…
Algebraic Localization from Power-Law Interactions in Disordered Quantum Wires
Thomas Botzung, Davide Vodola, Piero Naldesi +3
We analyze the effects of disorder on the correlation functions of one-dimensional quantum models of fermions and spins with long-range interactions that decay with distance …
Symmetry-protected topological phases in lattice gauge theories: topological QED
G. Magnifico, D. Vodola, E. Ercolessi +3
The interplay of symmetry, topology, and many-body effects in the classification of possible phases of matter poses a formidable challenge that is attracting great attention in con…
Twins Percolation for Qubit Losses in Topological Color Codes
D. Vodola, D. Amaro, M. A. Martin-Delgado +1
We establish and explore a new connection between quantum information theory and classical statistical mechanics by studying the problem of qubit losses in 2D topological color cod…