282 citations · 1.2k across the 13 of their papers we have counts for
13 papers
Quantifying Quantumness of Channels Without Entanglement
Huan-Yu Ku, Josef Kadlec, Antonín Černoch +8
Quantum channels breaking entanglement, incompatibility, or nonlocality are defined as such because they are not useful for entanglement-based, one-sided device-independent, or dev…
Certifying dimension of quantum systems by sequential projective measurements
Adel Sohbi, Damian Markham, Jaewan Kim +1
This work analyzes correlations arising from quantum systems subject to sequential projective measurements to certify that the system in question has a quantum dimension greater th…
Success-or-Draw: A Strategy Allowing Repeat-Until-Success in Quantum Computation
Qingxiuxiong Dong, Marco Túlio Quintino, Akihito Soeda +1
Repeat-until-success strategy is a standard method to obtain success with a probability which grows exponentially in the number of iterations. However, since quantum systems are di…
Device-independent tests of structures of measurement incompatibility
Marco Túlio Quintino, Costantino Budroni, Erik Woodhead +2
In contrast with classical physics, in quantum physics some sets of measurements are incompatible in the sense that they can not be performed simultaneously. Among other applicatio…
Reversing Unknown Quantum Transformations: Universal Quantum Circuit for Inverting General Unitary Operations
Marco Túlio Quintino, Qingxiuxiong Dong, Atsushi Shimbo +2
Given a quantum gate implementing a -dimensional unitary operation , without any specific description but , and permitted to use times, we present a universal probab…
Algorithmic construction of local hidden variable models for entangled quantum states
Flavien Hirsch, Marco Túlio Quintino, Tamás Vértesi +2
Constructing local hidden variable (LHV) models for entangled quantum states is challenging, as the model should reproduce quantum predictions for all possible local measurements.…
Local hidden variable models for entangled quantum states using finite shared randomness
Joseph Bowles, Flavien Hirsch, Marco Túlio Quintino +1
The statistics of local measurements performed on certain entangled states can be reproduced using a local hidden variable (LHV) model. While all known models make use of an infini…
Joint Measurability, Einstein-Podolsky-Rosen Steering, and Bell Nonlocality
Marco Túlio Quintino, Tamás Vértesi, Nicolas Brunner
We investigate the relation between the incompatibility of quantum measurements and quantum nonlocality. We show that any set of measurements that is not jointly measurable (i.e. i…
One-way Einstein-Podolsky-Rosen Steering
Joseph Bowles, Tamás Vértesi, Marco Túlio Quintino +1
Einstein-Podolsky-Rosen steering is a form of quantum nonlocality exhibiting an inherent asymmetry between the observers, Alice and Bob. We present a simple class of entangled two-…
Certifying the dimension of classical and quantum systems in a prepare-and-measure scenario with independent devices
Joseph Bowles, Marco Tulio Quintino, Nicolas Brunner
We consider the problem of testing the dimension of uncharacterised classical and quantum systems in a prepare-and-measure setup. Here we assume the preparation and measurement dev…
Genuine hidden quantum nonlocality
Flavien Hirsch, Marco Túlio Quintino, Joseph Bowles +1
The nonlocality of certain quantum states can be revealed by using local filters before performing a standard Bell test. This phenomenon, known as hidden nonlocality, has been so f…
Realistic loophole-free Bell test with atom-photon entanglement
Colin Teo, Mateus Araújo, Marco Túlio Quintino +5
The establishment of nonlocal correlations, obtained through the violation of a Bell inequality, is not only important from a fundamental point of view, but constitutes the basis f…
Maximal CHSH violations with low efficiency photodetection and homodyne measurements
Marco Túlio Quintino, Mateus Araújo, Daniel Cavalcanti +2
We study nonlocality tests in which each party performs photodetection and homodyne measurements. The results of such measurements are dichotomized and a Clauser-Horne-Shimony-Holt…