All Outputs (103)

One-shot quantum state exchange (2019)
Journal Article
Lee, Y., Yamasaki, H., Adesso, G., & Lee, S. (2019). One-shot quantum state exchange. Physical Review A, 100(4), https://doi.org/10.1103/physreva.100.042306

© 2019 American Physical Society. Quantum state exchange is a quantum communication task in which two users exchange their respective quantum information in the asymptotic setting. In this paper, we consider a one-shot version of the quantum state ex... Read More about One-shot quantum state exchange.

Pushing the limits of the reaction-coordinate mapping (2019)
Journal Article
Correa, L. A., Xu, B., Morris, B., & Adesso, G. (2019). Pushing the limits of the reaction-coordinate mapping. Journal of Chemical Physics, 151(9), Article 094107. https://doi.org/10.1063/1.5114690

The reaction-coordinate mapping is a useful technique to study complex quantum dissipative dynamics into structured environments. In essence, it aims to mimic the original problem by means of an “augmented system,” which includes a suitably chosen co... Read More about Pushing the limits of the reaction-coordinate mapping.

Extendibility of bosonic Gaussian states (2019)
Journal Article
Lami, L., Khatri, S., Adesso, G., & M. Wilde, M. (2019). Extendibility of bosonic Gaussian states. Physical Review Letters, 123(5), Article 050501. https://doi.org/10.1103/PhysRevLett.123.050501

Extendibility of bosonic Gaussian states is a key issue in continuous-variable quantum information. We show that a bosonic Gaussian state is k-extendible if and only if it has a Gaussian k-extension, and we derive a simple semidefinite program, whose... Read More about Extendibility of bosonic Gaussian states.

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.

Operational advantage of quantum resources in subchannel discrimination (2019)
Journal Article
Takagi, R., Regula, B., Bu, K., Liu, Z., & Adesso, G. (2019). Operational advantage of quantum resources in subchannel discrimination. Physical Review Letters, 122(14), Article 140402. https://doi.org/10.1103/physrevlett.122.140402

One of the central problems in the study of quantum resource theories is to provide a given resource with an operational meaning, characterizing physical tasks in which the resource can give an explicit advantage over all resourceless states. We show... Read More about Operational advantage of quantum resources in subchannel discrimination.

Assisted work distillation (2019)
Journal Article
Morris, B., Lami, L., & Adesso, G. (2019). Assisted work distillation. Physical Review Letters, 122(13), Article 130601. https://doi.org/10.1103/physrevlett.122.130601

We study the process of assisted work distillation. This scenario arises when two parties share a bipartite quantum state ρAB and their task is to locally distill the optimal amount of work when one party is restricted to thermal operations, whereas... Read More about Assisted work distillation.

Activation and superactivation of single-mode Gaussian quantum channels (2019)
Journal Article
Lim, Y., Takagi, R., Adesso, G., & Lee, S. (2019). Activation and superactivation of single-mode Gaussian quantum channels. Physical Review A, 99(3), Article 032337. https://doi.org/10.1103/physreva.99.032337

Activation of quantum capacity is a surprising phenomenon according to which the quantum capacity of a certain channel may increase by combining it with another channel with zero quantum capacity. Superactivation describes an even more particular occ... Read More about Activation and superactivation of single-mode Gaussian quantum channels.

Multipartite Einstein-Podolsky-Rosen steering sharing with separable states (2019)
Journal Article
Xiang, Y., Su, X., Mišta, L., Adesso, G., & He, Q. (2019). Multipartite Einstein-Podolsky-Rosen steering sharing with separable states. Physical Review A, 99(1), Article 010104. https://doi.org/10.1103/physreva.99.010104

The distribution of quantum correlations among remote users is a key procedure underlying many quantum information technologies. Einstein-Podolsky-Rosen steering, which is one kind of such a correlation stronger than entanglement, has been identified... Read More about Multipartite Einstein-Podolsky-Rosen steering sharing with separable states.

Optimal distillation of quantum coherence with reduced waste of resources (2019)
Journal Article
Torun, G., Lami, L., Adesso, G., & Yildiz, A. (2019). Optimal distillation of quantum coherence with reduced waste of resources. Physical Review A, 99(1), Article 012321. https://doi.org/10.1103/physreva.99.012321

We present an optimal probabilistic protocol to distill quantum coherence. Inspired by a specific entanglement distillation protocol, our main result yields a strictly incoherent operation that produces one of a family of maximally coherent states of... Read More about Optimal distillation of quantum coherence with reduced waste of resources.

State exchange with quantum side information (2019)
Journal Article
Lee, Y., Takagi, R., Yamasaki, H., Adesso, G., & Lee, S. (2019). State exchange with quantum side information. Physical Review Letters, 122(1), Article 010502. https://doi.org/10.1103/physrevlett.122.010502

We consider a quantum communication task between two users Alice and Bob, in which Alice and Bob exchange their respective quantum information by means of local operations and classical communication assisted by shared entanglement. Here, we assume t... Read More about State exchange with quantum side information.

Generic emergence of objectivity of observables in infinite dimensions (2018)
Journal Article
Knott, P. A., Tufarelli, T., Piani, M., & Adesso, G. (2018). Generic emergence of objectivity of observables in infinite dimensions. Physical Review Letters, 121(16), https://doi.org/10.1103/PhysRevLett.121.160401

Quantum Darwinism posits that information becomes objective whenever multiple observers indirectly probe a quantum system by each measuring a fraction of the environment. It was recently shown that objectivity of observables emerges generically from... Read More about Generic emergence of objectivity of observables in infinite dimensions.

Certification and quantification of multilevel quantum coherence (2018)
Journal Article
Ringbauer, M., Bromley, T. R., Cianciaruso, M., Lami, L., Lau, W. S., Adesso, G., …Piani, M. (2018). Certification and quantification of multilevel quantum coherence. Physical Review X, 8(4), Article 041007. https://doi.org/10.1103/physrevx.8.041007

Quantum coherence, present whenever a quantum system exists in a superposition of multiple classically distinct states, marks one of the fundamental departures from classical physics. Quantum coherence has recently been investigated rigorously within... Read More about Certification and quantification of multilevel quantum coherence.

Quantum-enhanced measurements without entanglement (2018)
Journal Article
Braun, D., Adesso, G., Benatti, F., Floreanini, R., Marzolino, U., Mitchell, M. W., & Pirandola, S. (2018). Quantum-enhanced measurements without entanglement. Reviews of Modern Physics, 90(3), Article 035006. https://doi.org/10.1103/revmodphys.90.035006

Quantum-enhanced measurements exploit quantum mechanical effects for increasing the sensitivity of measurements of certain physical parameters and have great potential for both fundamental science and concrete applications. Most of the research has s... Read More about Quantum-enhanced measurements without entanglement.

Gaussian quantum resource theories (2018)
Journal Article
Lami, L., Regula, B., Wang, X., Nichols, R., Winter, A., & Adesso, G. (2018). Gaussian quantum resource theories. Physical Review A, 98(2), https://doi.org/10.1103/physreva.98.022335

We develop a general framework to assess capabilities and limitations of the Gaussian toolbox in continuous-variable quantum information theory. Our framework allows us to characterize the structure and properties of quantum resource theories special... Read More about Gaussian quantum resource theories.

Probabilistic distillation of quantum coherence (2018)
Journal Article
Fang, K., Wang, X., Lami, L., Regula, B., & Adesso, G. (2018). Probabilistic distillation of quantum coherence. Physical Review Letters, 121(7), doi:10.1103/physrevlett.121.070404. ISSN 0031-9007

The ability to distill quantum coherence is pivotal for optimizing the performance of quantum technologies; however, such a task cannot always be accomplished with certainty. Here we develop a general framework of probabilistic distillation of quantu... Read More about Probabilistic distillation of quantum coherence.

Noisy frequency estimation with noisy probes (2018)
Journal Article
Górecka, A., Pollock, F. A., Liuzzo-Scorpo, P., Nichols, R., Adesso, G., & Modi, K. (2018). Noisy frequency estimation with noisy probes. New Journal of Physics, 20(8), Article 083008. https://doi.org/10.1088/1367-2630/aad4e5

We consider frequency estimation in a noisy environment with noisy probes. This builds on previous studies, most of which assume that the initial probe state is pure, while the encoding process is noisy, or that the initial probe state is mixed, whil... Read More about Noisy frequency estimation with noisy probes.

One-Shot Coherence Distillation (2018)
Journal Article
Regula, B., Fang, K., Wang, X., & Adesso, G. (2018). One-Shot Coherence Distillation. Physical Review Letters, 121(1), https://doi.org/10.1103/PhysRevLett.121.010401

We characterize the distillation of quantum coherence in the one-shot setting, that is, the conversion of general quantum states into maximally coherent states under different classes of quantum operations. We show that the maximally incoherent opera... Read More about One-Shot Coherence Distillation.

Accessible bounds for general quantum resources (2018)
Journal Article
Bromley, T. R., Cianciaruso, M., Vourekas, S., Regula, B., & Adesso, G. (2018). Accessible bounds for general quantum resources. Journal of Physics A: Mathematical and Theoretical, 51(32), https://doi.org/10.1088/1751-8121/aacb4a

The recent development of general quantum resource theories has given a sound basis for the quantification of useful quantum effects. Nevertheless, the evaluation of a resource measure can be highly non-trivial, involving an optimisation that is ofte... Read More about Accessible bounds for general quantum resources.