Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Istituto di Fotonica e NanotecnologieIT287 papers
- University of MilanIT253 papers
- Centre National de la Recherche ScientifiqueFR237 papers
- Istituto Nazionale di Fisica Nucleare, Sezione di MilanoIT232 papers
- Sapienza University of RomeIT155 papers
- Italian Institute of TechnologyIT125 papers
- University of Milano-BicoccaIT115 papers
- National Research CouncilLK111 papers
- University of GenoaIT102 papers
- University of Rome Tor VergataIT102 papers
- University of BolognaIT101 papers
- University of Naples Federico IIIT97 papers
21 papers · 2 filters
Quantum statistical signature of symmetry breaking
Stefano Longhi
In multiparticle quantum interference, bosons show rather generally the tendency to bunch together, while fermions can not. This behavior, which is rooted in the different statisti…
Entropic measurement uncertainty relations for all the infinite components of a spin vector
Alberto Barchielli, Matteo Gregoratti
The information-theoretic formulation of quantum measurement uncertainty relations (MURs), based on the notion of relative entropy between measurement probabilities, is extended to…
Quantum random access codes and incompatibility of measurements
Claudio Carmeli, Teiko Heinosaari, Alessandro Toigo
We prove that quantum random access code (QRAC) performs better than its classical counterpart only when incompatible quantum measurements are used in the decoding task. As a conse…
Probing non-Hermitian Skin Effect and non-Bloch Phase Transitions
Stefano Longhi
In non-Hermitian crystals showing the non-Hermitian skin effect, ordinary Bloch band theory and Bloch topological invariants fail to correctly predict energy spectra, topological b…
Quantum decay in a topological continuum
Stefano Longhi
The quantum mechanical decay of two or more overlapped resonances in a common continuum is largely influenced by Fano interference, leading to important phenomena such as the exist…
Metal-insulator phase transition in a non-Hermitian Aubry-André-Harper Model
Stefano Longhi
Non-Hermitian extensions of the Anderson and Aubry-André-Harper models are attracting a considerable interest as platforms to study localization phenomena, metal-insulator and topo…
Roadmap on STIRAP applications
Klaas Bergmann, Hanns-Christoph Nägerl, Cristian Panda +31
STIRAP (Stimulated Raman Adiabatic Passage) is a powerful laser-based method, usually involving two photons, for efficient and selective transfer of population between quantum stat…
Quantum probing topological phase transitions by non-Markovianity
Gian Luca Giorgi, Stefano Longhi, Albert Cabot +1
Understanding the physical significance and probing the global invariants characterizing quantum topological phases in extended systems is a main challenge in modern physics with m…
Witnessing incompatibility of quantum channels
Claudio Carmeli, Teiko Heinosaari, Takayuki Miyadera +1
We introduce the notion of incompatibility witness for quantum channels, defined as an affine functional that is non-negative on all pairs of compatible channels and strictly negat…
Loschmidt echo and fidelity decay near an exceptional point
Stefano Longhi
Non-Hermitian classical and open quantum systems near an exceptional point (EP) are known to undergo strong deviations in their dynamical behavior under small perturbations or slow…
Interfacing scalable photonic platforms: solid-state based multi-photon interference in a reconfigurable glass chip
C. Antón, J. C. Loredo, G. Coppola +11
Scaling-up optical quantum technologies requires to combine highly efficient multi-photon sources and integrated waveguide components. Here, we interface these scalable platforms:…
Noise-disturbance relation and the Galois connection of quantum measurements
Claudio Carmeli, Teiko Heinosaari, Takayuki Miyadera +1
The relation between noise and disturbance is investigated within the general framework of Galois connections. Within this framework, we introduce the notion of leak of information…
Quantum interference of topological states of light
Jean-Luc Tambasco, Giacomo Corrielli, Robert J. Chapman +4
Topological insulators are materials that have a gapped bulk energy spectrum, but contain protected in-gap states appearing at their surface. These states exhibit remarkable proper…
Constructing extremal compatible quantum observables by means of two mutually unbiased bases
Claudio Carmeli, Gianni Cassinelli, Alessandro Toigo
We describe a particular class of pairs of quantum observables which are extremal in the convex set of all pairs of compatible quantum observables. The pairs in this class are cons…
Topological pumping of edge states via adiabatic passage
Stefano Longhi
Topological pumping of edge states in finite crystals or quasicrystals with non-trivial topological phases provides a powerful means for robust excitation transfer. In most schemes…
VIP2 in LNGS - Testing the Pauli Exclusion Principle for electrons with high sensitivity
J. Marton, A. Pichler, A. Amirkhani +25
The VIP2 (VIolation of the Pauli Exclusion Principle) experiment at the Gran Sasso underground laboratory (LNGS) is searching for possible violations of standard quantum mechanics…
Experimental investigation of quantum decay at short, intermediate and long times via integrated photonics
Andrea Crespi, Francesco V. Pepe, Paolo Facchi +5
The decay of an unstable system is usually described by an exponential law. Quantum mechanics predicts strong deviations of the survival probability from the exponential: indeed, t…
Quantum Storage of Frequency-Multiplexed Heralded Single Photons
Alessandro Seri, Dario Lago-Rivera, Andreas Lenhard +4
We report on the quantum storage of a heralded frequency-multiplexed single photon in an integrated laser-written rare-earth doped waveguide. The single photon contains 15 discrete…
Coherent Transport of Quantum States by Deep Reinforcement Learning
Riccardo Porotti, Dario Tamascelli, Marcello Restelli +1
Some problems in physics can be handled only after a suitable \textit{ansatz }solution has been guessed. Such method is therefore resilient to generalization, resulting of limited…
Hong-Ou-Mandel interference between independent III-V on silicon waveguide integrated lasers
C. Agnesi, B. Da Lio, D. Cozzolino +12
The versatility of silicon photonic integrated circuits has led to a widespread usage of this platform for quantum information based applications, including Quantum Key Distributio…
Landau-Zener topological quantum state transfer
Stefano Longhi, Gian Luca Giorgi, Roberta Zambrini
Fast and robust quantum state transfer (QST) is a major requirement in quantum control and in scalable quantum information processing. Topological protection has emerged as a promi…