Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Istituto Nazionale di Fisica Nucleare, Sezione di PisaIT2.2k papers
- University of PisaIT2.1k papers
- Massachusetts Institute of TechnologyUS2k papers
- University of PaduaIT1.9k papers
- Istituto Nazionale di Fisica Nucleare, Laboratori Nazionali di FrascatiIT1.7k papers
- Centre National de la Recherche ScientifiqueFR1.7k papers
- Istituto Nazionale di Fisica Nucleare, Sezione di Roma IIT1.7k papers
- Sapienza University of RomeIT1.6k papers
- University of Wisconsin–MadisonUS1.6k papers
- The Ohio State UniversityUS1.6k papers
- Johns Hopkins UniversityUS1.6k papers
- University of BolognaIT1.5k papers
21 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…
Parasitic effects in SQUID-based radiation comb generators
Riccardo Bosisio, Francesco Giazotto, Paolo Solinas
We study several parasitic effects on the implementation of a Josephson radiation comb generator (JRCG) based on a dc superconducting quantum interference device (SQUID) driven by…
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…
Simulation and Detection of Photonic Chern Insulators in One-Dimensional Circuit Quantum Electrodynamics Lattice
Feng Mei, Jia-Bin You, Wei Nie +3
We introduce a simple method to realize and detect photonic topological Chern insulators with one-dimensional circiut quantum electrodynamics arrays. By periodically modulating the…
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…
Generating quantum discord between two distant Bose-Einstein condensates with Bell-like detection
M. Eghbali-Arani, H. Yavari, M. A. Shahzamanian +2
We propose a technique that enables the creation of quantum discord between two distant nodes, each containing a cavity consist of the Bose-Einstein condensate, by applying a non-i…
Phase diagram of a QED-cavity array coupled via a N-type level scheme
Jiasen Jin, Rosario Fazio, Davide Rossini
We study the zero-temperature phase diagram of a one-dimensional array of QED cavities where, besides the single-photon hopping, an additional coupling between neighboring cavities…
Quantum cooling and squeezing of a levitating nanosphere via time-continuous measurements
Marco G. Genoni, Jinglei Zhang, James Millen +2
With the purpose of controlling the steady state of a dielectric nanosphere levitated within an optical cavity, we study its conditional dynamics under simultaneous sideband coolin…
The time as an emergent property of quantum mechanics, a synthetic description of a first experimental approach
E Moreva, G Brida, M Gramegna +3
The "problem of time" in present physics substantially consists in the fact that a straightforward quantization of the general relativistic evolution equation and constraints gener…
Transfer of arbitrary two qubit states via a spin chain
S. Lorenzo, T. J. G. Apollaro, S. Paganelli +2
We investigate the fidelity of the quantum state transfer (QST) of two qubits by means of an arbitrary spin-1/2 network, on a lattice of any dimensionality. Under the assumptions t…
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…
Measuring quantumness: from theory to observability in interferometric setups
Leonardo Ferro, Rosario Fazio, Fabrizio Illuminati +3
We investigate the notion of quantumness based on the non-commutativity of the algebra of observables and introduce a measure of quantumness based on the mutual incompatibility of…