2.8k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- University of MilanIT3.7k papers
- Centre National de la Recherche ScientifiqueFR2.6k papers
- Institut National de Physique Nucléaire et de Physique des ParticulesFR2.4k papers
- Istituto Nazionale di Fisica Nucleare, Sezione di Roma IIT2.4k papers
- Istituto Nazionale di Fisica Nucleare, Sezione di GenovaIT2.3k papers
- University of EdinburghGB2.2k papers
- National Institute for Subatomic PhysicsNL2.2k papers
- University of ManchesterGB2.2k papers
- Istituto Nazionale di Fisica Nucleare, Laboratori Nazionali di FrascatiIT2.1k papers
- Rutherford Appleton LaboratoryGB2.1k papers
- University of LiverpoolGB2.1k papers
- Heidelberg UniversityDE2.1k papers
23 papers · 2 filters
Mixing-induced quantum non-Markovianity and information flow
Heinz-Peter Breuer, Giulio Amato, Bassano Vacchini
Mixing dynamical maps describing open quantum systems can lead from Markovian to non-Markovian processes. Being surprising and counter-intuitive, this result has been used as argum…
Estimation of general Hamiltonian parameters via controlled energy measurements
Luigi Seveso, Matteo G. A. Paris
The quantum Cramér-Rao theorem states that the quantum Fisher information (QFI) bounds the best achievable precision in the estimation of a quantum parameter . This is true, how…
Non-Markovian dynamics from band edge effects and static disorder
Salvatore Lorenzo, Francesco Ciccarello, G. Massimo Palma
It was recently shown [S. Lorenzo et al., Sci. Rep. 7, 42729 (2017)] that the presence of static disorder in a bosonic bath - whose normal modes thus become all Anderson-localised…
Noisy effects in interferometric quantum gravity tests
F. Benatti, R. Floreanini, S. Olivares +1
Quantum-enhanced metrology is boosting interferometer sensitivities to extraordinary levels, up to the point where table-top experiments have been proposed to measure Planck-scale…
Continuous-variable quantum probes for structured environments
Matteo Bina, Federico Grasselli, Matteo G. A. Paris
We address parameter estimation for complex/structured systems and suggest an effective estimation scheme based on continuous-variables quantum probes. In particular, we investigat…
Dephasing assisted transport on a biomimetic ring structure
Dario Tamascelli, Alessia Segati, Stefano Olivares
We address two-level systems arranged in ring configurations affected by static disorder. In particular we investigate the role of dephasing in the transport of an excitation along…
Quantum metrology at level anti-crossing
Luca Ghirardi, Ilaria Siloi, Paolo Bordone +2
We address parameter estimation in two-level systems exhibiting level anti-crossing and prove that universally optimal strategies for parameter estimation may be designed, that is,…
Universal quantum magnetometry with spin states at equilibrium
Filippo Troiani, Matteo G. A. Paris
We address metrological protocols for the estimation of the intensity and the orientation of a magnetic field, and show that quantum-enhanced precision may be achieved by probing t…
Squeezing-enhanced phase-shift-keyed binary communication in noisy channels
Giovanni Chesi, Stefano Olivares, Matteo G. A. Paris
We address binary phase-shift-keyed communication channels based on Gaussian states and prove that squeezing improves state discrimination at fixed energy of the channel, also in t…
Precision thermometry and the quantum speed limit
Steve Campbell, Marco G. Genoni, Sebastian Deffner
We assess precision thermometry for an arbitrary single quantum system. For a -dimensional harmonic system we show that the gap sets a single temperature that can be optimally e…
An efficient non-linear Feshbach engine
Jing Li, Thomás Fogarty, Steve Campbell +2
We investigate a thermodynamic cycle using a Bose-Einstein condensate with nonlinear interactions as the working medium. Exploiting Feshbach resonances to change the interaction st…
Determining quantum coherence with minimal resources
Claudio Carmeli, Teiko Heinosaari, Sabrina Maniscalco +2
We characterize minimal measurement setups for validating the quantum coherence of an unknown quantum state. We show that for a -level system, the optimal strategy consists of m…
Nonequilibrium quantum bounds to Landauer's principle: Tightness and effectiveness
Steve Campbell, Giacomo Guarnieri, Mauro Paternostro +1
We assess two different non-equilibrium quantum Landauer bounds: the traditional approach based on the change in entropy, referred to as the `entropic bound', and one based on the…
Hybrid quantum key distribution using coherent states and photon-number-resolving detectors
Marco Cattaneo, Matteo G. A. Paris, Stefano Olivares
We put forward a hybrid quantum key distribution protocol based on coherent states, Gaussian modulation, and photon-number-resolving (PNR) detectors, and show that it may enhance t…
Quantum non-Markovian piecewise dynamics from collision models
Salvatore Lorenzo, Francesco Ciccarello, G. Massimo Palma +1
Recently, a large class of quantum non-Markovian piecewise dynamics for an open quantum system obeying closed evolution equations has been introduced [B. Vacchini, Phys. Rev. Lett.…
Ultimate limits for quantum magnetometry via time-continuous measurements
Francesco Albarelli, Matteo A. C. Rossi, Matteo G. A. Paris +1
We address the estimation of the magnetic field B acting on an ensemble of atoms with total spin J subjected to collective transverse noise. By preparing an initial spin coherent s…
Optimal amplification of the dynamical Casimir effect in a parametrically driven system
Fabian Hoeb, Fabrizio Angaroni, Jonathan Zoller +4
We introduce different strategies to enhance photon generation in a cavity within the Rabi model in the ultrastrong coupling regime. We show that a bang-bang strategy allows to enh…
Measurement uncertainty relations for position and momentum: Relative entropy formulation
Alberto Barchielli, Matteo Gregoratti, Alessandro Toigo
Heisenberg's uncertainty principle has recently led to general measurement uncertainty relations for quantum systems: incompatible observables can be measured jointly or in sequenc…
Composite quantum collision models
Salvatore Lorenzo, Francesco Ciccarello, G. Massimo Palma
A collision model (CM) is a framework to describe open quantum dynamics. In its {\it memoryless} version, it models the reservoir as consisting of a large collection o…
Non-Markovianity by undersampling in quantum optical simulators
Matteo A. C. Rossi, Claudia Benedetti, Simone Cialdi +4
We unveil a novel source of non-Markovianity for the dynamics of quantum systems, which appears when the system does not explore the full set of dynamical trajectories in the inter…
Global and local thermometry schemes in coupled quantum systems
Steve Campbell, Mohammad Mehboudi, Gabriele De Chiara +1
We study the ultimate bounds on the estimation of temperature for an interacting quantum system. We consider two coupled bosonic modes that are assumed to be thermal and using quan…
Full counting statistics approach to the quantum non-equilibrium Landauer bound
Giacomo Guarnieri, Steve Campbell, John Goold +3
We develop the full counting statistics of dissipated heat to explore the relation with Landauer's principle. Combining the two-time measurement protocol for the reconstruction of…
Effective description of the short-time dynamics in open quantum systems
Matteo A. C. Rossi, Caterina Foti, Alessandro Cuccoli +3
We address the dynamics of a bosonic system coupled to either a bosonic or a magnetic environment, and derive a set of sufficient conditions that allow one to describe the dynamics…