All Outputs (13)

Demonstrating Quantum Coherence and Metrology that is Resilient to Transversal Noise (2019)
Journal Article

© 2019 American Physical Society. Quantum systems can be exploited for disruptive technologies but in practice quantum features are fragile due to noisy environments. Quantum coherence, a fundamental such feature, is a basis-dependent property that i... Read More about Demonstrating Quantum Coherence and Metrology that is Resilient to Transversal Noise.

One-shot quantum state exchange (2019)
Journal Article

© 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

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

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

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

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

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

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

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

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

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

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

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.