97 citations · 254 across the 12 of their papers we have counts for
13 papers
Energetics of Fault-Tolerant Spin-Qubit Quantum Computation
João Santos, Jayshankar Nath, Marco Pezzutto +3
Semiconductor spin qubits offer a promising route to compact and scalable quantum computers, combining long coherence times in isotopically purified silicon with compatibility with…
Nonclassical energy-change distribution as a witness of non-Markovian quantum dynamics
Marco Pezzutto, Anton Corr, Gabriele De Chiara +2
We address the problem of identifying non-Markovian quantum time evolutions of an open quantum system by only performing measurements of the system's energy. We demonstrate that vi…
Unveiling Energetic Advantage in Superconducting Cat-Qubits Quantum Computation
Pedro Ramos, Marco Pezzutto, Yasser Omar
Quantum computers are emerging as a promising new technology due to their ability to solve complex problems that exceed the capabilities of classical systems in terms of time. Amon…
Energetics of Rydberg-atom Quantum Computing
Óscar Alves, Marco Pezzutto, Yasser Omar
While extensive research over the past decades has been dedicated to developing scalable quantum computers, the question of their energetic performance has only gained attention mo…
Nonequilibrium thermometry via an ensemble of initially correlated qubits
Enrico Trombetti, Marco Malitesta, Marco Pezzutto +1
We investigate a nonequilibrium quantum thermometry protocol in which an ensemble of qubits, acting as temperature probes, is weakly coupled to a macroscopic thermal bath. The temp…
Non-positive energy quasidistributions in coherent collision models
Marco Pezzutto, Gabriele De Chiara, Stefano Gherardini
We determine the Kirkwood-Dirac quasiprobability (KDQ) distribution associated to the stochastic instances of internal energy variations for the quantum system and environment part…
Coherence-enhanced single-qubit thermometry out of equilibrium
Gonçalo Frazao, Marco Pezzutto, Yasser Omar +2
The metrological limits of thermometry operated in nonequilibrium dynamical regimes are analyzed. We consider a finite-dimensional quantum system, employed as a quantum thermometer…
Energetics of Trapped-Ion Quantum Computation
Francisca Góis, Marco Pezzutto, Yasser Omar
The question of the energetic efficiency of quantum computers has gained increasing attention recently. A precise understanding of the resources required to operate a quantum compu…
Quantum dynamics for energetic advantage in a charge-based classical full-adder
João P. Moutinho, Marco Pezzutto, Sagar Pratapsi +5
We present a proposal for a one-bit full-adder to process classical information based on the quantum reversible dynamics of a triple quantum dot system. The device works via the re…
Quantum field thermal machines
M. Gluza, J. Sabino, N. H. Y. Ng +7
Recent years have enjoyed an overwhelming interest in quantum thermodynamics, a field of research aimed at understanding thermodynamic tasks performed in the quantum regime. Furthe…
An out-of-equilibrium non-Markovian Quantum Heat Engine
Marco Pezzutto, Mauro Paternostro, Yasser Omar
We study the performance of a quantum Otto cycle using a harmonic work medium and undergoing collisional dynamics with finite-size reservoirs. We span the dynamical regimes of the…
Implications of non-Markovian dynamics for the Landauer bound
Marco Pezzutto, Mauro Paternostro, Yasser Omar
We study the dynamics of a spin-1/2 particle interacting with a multi-spin environment, modelling the corresponding open system dynamics through a collision-based model. The enviro…
Quantum Thermal Machines Fuelled by Vacuum Forces
Hugo Terças, Sofia Ribeiro, Marco Pezzutto +1
We propose a quantum thermal machine composed of two nanomechanical resonators (NMR) (two membranes suspended over a trench in a substrate), placed a few m from each other. The…