9.8k citations
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
18 papers · 2 filters
Robustness of quantum memories based on Majorana zero modes
Leonardo Mazza, Matteo Rizzi, Mikhail D. Lukin +1
We analyze the rate at which quantum information encoded in zero-energy Majorana modes is lost in the presence of perturbations. We show that information can survive for times that…
Selective writing and read-out of a register of static qubits
A. De Pasquale, F. Ciccarello, K. Yuasa +1
We propose a setup comprising an arbitrarily large array of static qubits (SQs), which interact with a flying qubit (FQ). The SQs work as a quantum register, which can be written o…
Thermodynamics of discrete quantum processes
Janet Anders, Vittorio Giovannetti
We define thermodynamic configurations and identify two primitives of discrete quantum processes between configurations for which heat and work can be defined in a natural way. Thi…
Electromagnetic channel capacity for practical purposes
Vittorio Giovannetti, Seth Lloyd, Lorenzo Maccone +1
We give analytic upper bounds to the channel capacity C for transmission of classical information in electromagnetic channels (bosonic channels with thermal noise). In the practica…
Ergodic and Mixing Quantum Channels in Finite Dimensions
Daniel Burgarth, Giulio Chiribella, Vittorio Giovannetti +2
The paper provides a systematic characterization of quantum ergodic and mixing channels in finite dimensions and a discussion of their structural properties. In particular, we disc…
Positive Wigner functions render classical simulation of quantum computation efficient
A. Mari, J. Eisert
We show that quantum circuits where the initial state and all the following quantum operations can be represented by positive Wigner functions can be classically efficiently simula…
Dynamics of spontaneous emission in a single-end photonic waveguide
T. Tufarelli, F. Ciccarello, M. S. Kim
We investigate the spontaneous emission of a two-level system, e.g. an atom or atomlike object, coupled to a single-end, i.e., semi-infinite, one-dimensional photonic waveguide suc…
Collision-model-based approach to non-Markovian quantum dynamics
F. Ciccarello, G. M. Palma, V. Giovannetti
We present a theoretical framework to tackle quantum non-Markovian dynamics based on a microscopic collision model (CM), where the bath consists of a large collection of initially…
Wick's theorem for matrix product states
R. Hübener, A. Mari, J. Eisert
Matrix-product states and their continuous analogues are variational classes of states that capture quantum many-body systems or quantum fields with low entanglement; they are at t…
Quantum channels and memory effects
F. Caruso, V. Giovannetti, C. Lupo +1
Any physical process can be represented as a quantum channel mapping an initial state to a final state. Hence it can be characterized from the point of view of communication theory…
Quantifying the noise of a quantum channel by noise addition
Antonella De Pasquale, Vittorio Giovannetti
In this paper we introduce a way to quantify the noise level associated to a given quantum transformation. The key mechanism lying at the heart of the proposal is "noise addition":…
Master equation for cascade quantum channels: a collisional approach
V. Giovannetti, G. M. Palma
It has been recently shown that collisional models can be used to derive a general form for the master equations which describe the reduced time evolution of a composite multiparti…
Enhancing Quantum Effects via Periodic Modulations in Optomechanical Systems
Alessandro Farace, Vittorio GIovannetti
Parametrically modulated optomechanical systems have been recently proposed as a simple and efficient setting for the quantum control of a micromechanical oscillator: relevant poss…
Quantum channels and their entropic characteristics
A. S. Holevo, V. Giovannetti
One of the major achievements of the recently emerged quantum information theory is the introduction and thorough investigation of the notion of quantum channel which is a basic bu…
QED Corrections to the Electromagnetic Abraham Force. Casimir Momentum of the Hydrogen atom?
Bart Van Tiggelen, Sebastien Kawka, Geert L. J. A. Rikken
We develop a QED approach to find the contribution of the quantum vacuum to the electromagnetic Abraham force. Semi-classical theories predict diverging contributions from the quan…
Capacities of linear quantum optical systems
Cosmo Lupo, Vittorio Giovannetti, Stefano Pirandola +2
A wide variety of communication channels employ the quantized electromagnetic field to convey information. Their communication capacity crucially depends on losses associated to sp…
Sub-Heisenberg estimation strategies are ineffective
Vittorio Giovannetti, Lorenzo Maccone
In interferometry, sub-Heisenberg strategies claim to achieve a phase estimation error smaller than the inverse of the mean number of photons employed (Heisenberg bound). Here we s…
Measuring quantumness via anticommutators
Rosario Fazio, Kavan Modi, Saverio Pascazio +2
We introduce a method to witness the quantumness of a system. The method relies on the fact that the anticommutator of two classical states is always positive. We show that there i…