Outputs (88)

Thermality versus objectivity: Can they peacefully coexist? (2021)
Journal Article
Le, T. P., Winter, A., & Adesso, G. (2021). Thermality versus objectivity: Can they peacefully coexist?. Entropy, 23(11), Article 1506. https://doi.org/10.3390/e23111506

Under the influence of external environments, quantum systems can undergo various different processes, including decoherence and equilibration. We observe that macroscopic objects are both objective and thermal, thus leading to the expectation that b... Read More about Thermality versus objectivity: Can they peacefully coexist?.

General Expressions for the Quantum Fisher Information Matrix with Applications to Discrete Quantum Imaging (2021)
Journal Article
Fiderer, L. J., Tufarelli, T., Adesso, G., & Piano, S. (2021). General Expressions for the Quantum Fisher Information Matrix with Applications to Discrete Quantum Imaging. PRX Quantum, 2(2), Article 020308. https://doi.org/10.1103/prxquantum.2.020308

The quantum Fisher information matrix is a central object in multiparameter quantum estimation theory. It is usually challenging to obtain analytical expressions for it because most calculation methods rely on the diagonalization of the density matri... Read More about General Expressions for the Quantum Fisher Information Matrix with Applications to Discrete Quantum Imaging.

Quantum secure learning with classical samples (2021)
Journal Article
Song, W., Lim, Y., Kwon, H., Adesso, G., Wieśniak, M., Pawłowski, M., Kim, J., & Bang, J. (2021). Quantum secure learning with classical samples. Physical Review A, 103(4), Article 042409. https://doi.org/10.1103/physreva.103.042409

Studies addressing the question “Can a learner complete the learning securely?” have recently been spurred from the standpoints of fundamental theory and potential applications. In the relevant context of this question, we present a classical-quantum... Read More about Quantum secure learning with classical samples.

Mixing indistinguishable systems leads to a quantum Gibbs paradox (2021)
Journal Article
Yadin, B., Morris, B., & Adesso, G. (2021). Mixing indistinguishable systems leads to a quantum Gibbs paradox. Nature Communications, 12, Article 1471. https://doi.org/10.1038/s41467-021-21620-7

The classical Gibbs paradox concerns the entropy change upon mixing two gases. Whether an observer assigns an entropy increase to the process depends on their ability to distinguish the gases. A resolution is that an “ignorant” observer, who cannot d... Read More about Mixing indistinguishable systems leads to a quantum Gibbs paradox.

Analysis of the conditional mutual information in ballistic and diffusive non-equilibrium steady-states (2020)
Journal Article
Malouf, W. T. B., Goold, J., Adesso, G., & Landi, G. (2020). Analysis of the conditional mutual information in ballistic and diffusive non-equilibrium steady-states. Journal of Physics A: Mathematical and Theoretical, 53(30), Article 305302. https://doi.org/10.1088/1751-8121/ab93fd

The conditional mutual information (CMI) $\mathcal{I}(A\! : \! C|B)$ quantifies the amount of correlations shared between $A$ and $C$ \emph{given} $B$. It therefore functions as a more general quantifier of bipartite correlations in multipartite scen... Read More about Analysis of the conditional mutual information in ballistic and diffusive non-equilibrium steady-states.

Assisted concentration of Gaussian resources (2020)
Journal Article
Lami, L., Takagi, R., & Adesso, G. (2020). Assisted concentration of Gaussian resources. Physical Review A, 101(5), Article 052305

In spite of their outstanding experimental relevance, Gaussian operations in continuous-variable quantum systems are subjected to fundamental limitations, as it is known that general resources cannot be distilled within the Gaussian paradigm. We show... Read More about Assisted concentration of Gaussian resources.

Gaussian Thermal Operations and The Limits of Algorithmic Cooling (2020)
Journal Article
Adesso, G., Serafini, A., Hsieh, C.-Y., Lostaglio, M., Shackerley-Bennett, U., & Longden, S. (2020). Gaussian Thermal Operations and The Limits of Algorithmic Cooling. Physical Review Letters, 124(1), Article 010602. https://doi.org/10.1103/physrevlett.124.010602

The study of thermal operations allows one to investigate the ultimate possibilities of quantum states and of nanoscale thermal machines. Whilst fairly general, these results typically do not apply to continuous variable systems and do not take into... Read More about Gaussian Thermal Operations and The Limits of Algorithmic Cooling.

Indistinguishability-enabled coherence for quantum metrology (2019)
Journal Article
Castellini, A., Lo Franco, R., Lami, L., Winter, A., Adesso, G., & Compagno, G. (2019). Indistinguishability-enabled coherence for quantum metrology. Physical Review A, 100(1), Article 012308. https://doi.org/10.1103/physreva.100.012308

Quantum coherence plays a fundamental and operational role in different areas of physics. A resource theory has been developed to characterize the coherence of distinguishable particles systems. Here we show that indistinguishability of identical par... Read More about Indistinguishability-enabled coherence for quantum metrology.

Generic bound coherence under strictly incoherent operations (2019)
Journal Article
Lami, L., Regula, B., & Adesso, G. (2019). Generic bound coherence under strictly incoherent operations. Physical Review Letters, 122(15), Article 150402. https://doi.org/10.1103/physrevlett.122.150402

We compute analytically the maximal rates of distillation of quantum coherence under strictly incoherent operations (SIO) and physically incoherent operations (PIO), showing that they coincide for all states, and providing a complete description of t... Read More about Generic bound coherence under strictly incoherent operations.

Towards superresolution surface metrology: quantum estimation of angular and axial separations (2019)
Journal Article
Napoli, C., Piano, S., Leach, R., Adesso, G., & Tufarelli, T. (2019). Towards superresolution surface metrology: quantum estimation of angular and axial separations. Physical Review Letters, 122(14), Article 140505. https://doi.org/10.1103/physrevlett.122.140505

We investigate the localization of two incoherent point sources with arbitrary angular and axial separations in the paraxial approximation. By using quantum metrology techniques, we show that a simultaneous estimation of the two separations is achiev... Read More about Towards superresolution surface metrology: quantum estimation of angular and axial separations.