3.9k citations · 28.3k across the 275 of their papers we have counts for
14 papers · 2 filters
Quantum memories with zero-energy Majorana modes and experimental constraints
Matteo Ippoliti, Matteo Rizzi, Vittorio Giovannetti +1
In this work we address the problem of realizing a reliable quantum memory based on zero-energy Majorana modes in the presence of experimental constraints on the operations aimed a…
Passive states optimize the output of bosonic Gaussian quantum channels
Giacomo De Palma, Dario Trevisan, Vittorio Giovannetti
An ordering between the quantum states emerging from a single mode gauge-covariant bosonic Gaussian channel is proven. Specifically, we show that within the set of input density ma…
Experiments testing macroscopic quantum superpositions must be slow
Andrea Mari, Giacomo De Palma, Vittorio Giovannetti
We consider a thought experiment where the preparation of a macroscopically massive or charged particle in a quantum superposition and the associated dynamics of a distant test par…
Building versatile bipartite probes for quantum metrology
Alessandro Farace, Antonella De Pasquale, Gerardo Adesso +1
We consider bipartite systems as versatile probes for the estimation of transformations acting locally on one of the subsystems. We investigate what resources are required for the…
Quantum Estimation via Sequential Measurements
Daniel Burgarth, Vittorio Giovannetti, Airi N. Kato +1
The problem of estimating a parameter of a quantum system through a series of measurements performed sequentially on a quantum probe is analyzed in the general setting where the un…
Gaussian Discriminating Strength
Luca Rigovacca, Alessandro Farace, Antonella De Pasquale +1
We present a quantifier of non-classical correlations for bipartite, multi-mode Gaussian states. It is derived from the Discriminating Strength measure, introduced for finite dimen…
Necessity of Eigenstate Thermalization
Giacomo De Palma, Alessio Serafini, Vittorio Giovannetti +1
Under the Eigenstate Thermalization Hypothesis (ETH), quantum-quenched systems equilibrate towards canonical, thermal ensembles. While at first glance the ETH might seem a very str…
Achieving the Holevo bound via a bisection decoding protocol
Matteo Rosati, Vittorio Giovannetti
We present a new decoding protocol to realize transmission of classical information through a quantum channel at asymptotically maximum capacity, achieving the Holevo bound and thu…
Entanglement-Saving Channels
Ludovico Lami, Vittorio Giovannetti
The set of Entanglement Saving (ES) quantum channels is introduced and characterized. These are completely positive, trace preserving transformations which when acting locally on a…
Local quantum thermal susceptibility
Antonella De Pasquale, Davide Rossini, Rosario Fazio +1
Thermodynamics relies on the possibility to describe systems composed of a large number of constituents in terms of few macroscopic variables. Its foundations are rooted into the p…
Quantum Time
Vittorio Giovannetti, Seth Lloyd, Lorenzo Maccone
We give a consistent quantum description of time, based on Page and Wootters' conditional probabilities mechanism, that overcomes the criticisms that were raised against similar pr…
Two-Mode Bosonic Quantum Metrology with Number Fluctuations
Antonella De Pasquale, Paolo Facchi, Giuseppe Florio +3
We search for the optimal quantum pure states of identical bosonic particles for applications in quantum metrology, in particular in the estimation of a single parameter for the ge…
Normal form decomposition for Gaussian-to-Gaussian superoperators
Giacomo De Palma, Andrea Mari, Vittorio Giovannetti +1
In this paper we explore the set of linear maps sending the set of quantum Gaussian states into itself. These maps are in general not positive, a feature which can be exploited as…
Efficiency of quantum controlled non-Markovian thermalization
Victor Mukherjee, Vittorio Giovannetti, Rosario Fazio +3
We study optimal control strategies to optimize the relaxation rate towards the fixed point of a quantum system in the presence of a non-Markovian dissipative bath. Contrary to nai…