Time-bin (TB) and energy-time (ET) entanglements are crucial resources for long-distance quantum information processing. ...

We show that some sets of quantum observables are unique up to an isometry and have a contextuality witness that attains ...

There are bipartite quantum nonlocal correlations requiring very low detection efficiency to reach the loophole-free regime ...

The theme of this issue is ‘Quantum contextuality, causality and freedom of choice.’ Contextuality, including non-locality ...

A necessary condition for the probabilities of a set of events to exhibit Bell nonlocality or Kochen-Specker contextuality ...

Self-testing allows one to characterise quantum systems under minimal assumptions. However, existing schemes rely on quantum ...

Contextuality is a distinctive feature of quantum theory and a fundamental resource for quantum computation. However, ...

Despite the conceptual importance of contextuality in quantum mechanics, there is a hitherto limited number of applications ...

Two fundamental quantum resources, nonlocality and contextuality, can be connected through Bell inequalities that are ...

Bell inequality tests where the detection efficiency is below a certain threshold ηcrit can be simulated with local ...

A central result in the foundations of quantum mechanics is the Kochen-Specker theorem. In short, it states that quantum ...

We address the problem of closing the detection efficiency loophole in Bell experiments, which is crucial for real-world ...

Magic sets of observables are minimal structures that capture quantum state-independent advantage for systems of n ≥ 2 ...

Self-testing is a technology to certify states and measurements using only the statistics of the experiment. Self-testing ...

Quantum measurements cannot be thought of as revealing preexisting results, even when they do not disturb any other ...

Producing contextual correlations in sequences of measurements on single quantum systems faces two major problems. One is ...

We introduce a general method which converts, in a unified way, any form of quantum contextuality, including any form of ...

Device-independent quantum key distribution (DI-QKD) offers the strongest form of security against eavesdroppers bounded ...

Bell non-locality and Kochen–Specker (KS) contextuality are logically independent concepts, fuel different protocols with ...

Trends in photonic quantum information follow closely the technical progress in classical optics and telecommunications. ...

A fundamental problem in quantum computation and quantum information is finding the minimum quantum dimension needed for ...

Device and semi-device-independent private quantum randomness generators are crucial for applications requiring private ...

Uno de los problemas más antiguos de la física moderna es de dónde viene la mecánica cuántica. La observación de la ...

We address the problem of reconstructing quantum theory from the perspective of an agent who makes bets about the outcomes ...

We address the problem of detecting bipartite Bell nonlocality whenever the only experimental information are the intensities ...

Entanglement is a fundamental resource for quantum information science. However, bipartite entanglement is destroyed when ...

The existence of ideal quantum measurements is one of the fundamental predictions of quantum mechanics. In theory, an ideal ...

Minimal informationally complete positive operator-valued measures (MIC-POVMs) are special kinds of measurement in quantum ...

Weak measurements are a relevant tool for quantum information because they allow tuning the disturbance on the observed ...

In contrast with classical physics, in quantum physics some sets of measurements are incompatible in the sense that they ...

Bell nonlocality and quantum contextuality are two important resources which, however, behave very differently in many ...

We address the problem of deriving the set of quantum correlations for every Bell and Kochen-Specker (KS) contextuality ...

Characterizing unknown quantum states and measurements is a fundamental problem in quantum information processing. In this ...

Measurement incompatibility is the most basic resource that distinguishes quantum from classical physics. Contextuality ...

We employ a trapped ion to study quantum contextual correlations in a single qutrit using the 5-observable ...

Models of quantum systems on curved space-times lack sufficient experimental verification. Some speculative theories suggest ...

Great effort has been made in the investigation of contextual correlations between compatible observables due to their ...

We use a single trapped-ion qutrit to demonstrate the quantum-state-independent violation of noncontextuality inequalities ...

Contextuality is a fundamental feature of quantum theory necessary for certain models of quantum computation and communication. ...

We report an experimental implementation of automated state transformations on spatial photonic qutrits following the ...

We prove that as conjectured by Acín et al. [Phys. Rev. A 93, 040102(R) (2016)], two bits of randomness can be certified ...

Contextuality, the impossibility of assigning context-independent measurement outcomes, is a critical resource for quantum ...

An essential ingredient in many examples of the conflict between quantum theory and noncontextual hidden variables (e.g., ...

In classical physics, properties of objects exist independently of the context, i.e., whether and how measurements are ...

Fundamentally binary theories are nonsignaling theories in which measurements of many outcomes are constructed by selecting ...

La mecánica cuántica choca con algunas de nuestras intuiciones más arraigadas acerca del mundo físico. A lo largo de la ...

We identify the simplest combinations of entanglement and incompatibility giving the maximum quantum violation for each ...

We report a method that exploits a connection between quantum contextuality and graph theory to reveal any form of quantum ...

Quantum nonlocality can be revealed “via local contextuality” in qudit-qudit entangled systems with d > 2 , that is, ...

We show that, regardless of the dimension of the Hilbert space, there exists no set of rays revealing state-independent ...

The interpretation of quantum theory is one of the longest-standing debates in physics. Type I interpretations see quantum ...

Clock synchronization for nonfaulty processes in multiprocess networks is indispensable for a variety of technologies. A ...

Clock synchronization for nonfaulty processes in multiprocess networks is indispensable for a variety of technologies. A ...

Las respuestas a preguntas formuladas por niños (¿Por qué el cielo es azul? ¿Cuál es el trozo más pequeño que existe? ...

Non-contextuality (NC) and Bell inequalities can be expressed as bounds Ω for positive linear combinations S of probabilities ...

Esta tesis doctoral trata de diversos aspectos de la teoría cuántica (TC), que abarcan desde el campo de los fundamentos ...

The Kochen-Specker (KS) theorem is a central result in quantum theory and has applications in quantum information. Its ...

The problem of separating classical from quantum correlations is, in general, intractable and has been solved explicitly ...

We report two fundamental experiments on three-level quantum systems (qutrits). The first one tests the simplest task for ...

Einstein-Podolsky-Rosen steering is a form of quantum nonlocality intermediate between entanglement and Bell nonlocality. ...

A fundamental problem is to understand why quantum theory only violates some noncontextuality (NC) inequalities and identify ...

The conflict between classical and quantum physics can be identified through a series of yes-no tests onquantum systems, ...

Einstein-Podolsky-Rosen steering is a form of quantum nonlocality intermediate between entanglement and Bell nonlocality. ...

We report two fundamental experiments on three-level quantum systems (qutrits). The first one tests the simplest task for ...

A loophole-free violation of Bell inequalities is of fundamental importance for demonstrating quantum nonlocality and ...

We introduce a physical approach to social networks (SNs) in which each actor is characterized by a yes–no test on a ...

A loophole-free violation of Bell inequalities is of fundamental importance for demonstrating quantumnonlocality and ...

Quantum correlations are contextual yet, in general, nothing prevents the existence of even more contextual correlations. ...

Este trabajo trata de un tipo particular de estados puros de n >qubits, los estados grafo. En el Capítulo 1 se presentan ...

We show how to prepare any graph state of up to 12 qubits with (a) the minimum number of controlled-Z gates and (b) the ...

The set of entanglement measures proposed by Hein, Eisert, and Briegel for n-qubit graph states [Phys. Rev. A 69, 062311 ...

Any 8-qubit graph state belongs to one of the 101 equivalence classes under local unitary operations within the Clifford ...

We introduce a two-observer all-versus-nothing proof of Bell’s theorem which reduces the number of required quantum ...

An experimental realization of the entanglement-assisted “Guess My Number” protocol for the reduction of communication ...

It is shown that the correlations between two qubits selected from a trio prepared in a W state violate the ...

El invento es un procedimiento para distribuir claves criptográficas entre dos usuarios distantes que usan una propiedad ...

Cirel’son inequality states that the absolute value of the combination of quantum correlations appearing in the ...

A theorem by Shannon and the Holevo theorem impose that the efficiency of any protocol for quantum key distribution, E , ...

Entanglement swapping between Einstein-Podolsky-Rosen (EPR) pairs can be used to generate the same sequence of random bits ...

En este trabajo trataremos de responder las siguientes preguntas: 1. ¿Qué entendemos por «lógica» de una teoría física? ...

It is a well-known fact that all the statistical predictions of quantum mechanics on the state of any physical system ...