779 citations · 2.8k across the 77 of their papers we have counts for
77 papers · 1 filter
Advantages of quantum communication revealed by the reexamination of hyperbit theory limitations
Giovanni Scala, Seyed Arash Ghoreishi, Marcin Pawłowski
Pawłowski and Winter's hyperbit theory, proposed in 2012, presented itself as an alternative to quantum theory, suggesting novel ways of redefining entanglement and classical commu…
Entanglement witnessing with untrusted detectors
Giuseppe Viola, Nikolai Miklin, Mariami Gachechiladze +1
We consider the problem of entanglement detection in the presence of faulty, potentially malicious detectors. A common - and, as of yet, the only - approach to this problem is to p…
Extending loophole-free nonlocal correlations to arbitrarily large distances
Anubhav Chaturvedi, Giuseppe Viola, Marcin Pawłowski
One of the most striking features of quantum theory is that it allows distant observers to share correlations that resist local hidden variable (classical) explanations, a phenomen…
Exponentially decreasing critical detection efficiency for any Bell inequality
Nikolai Miklin, Anubhav Chaturvedi, Mohamed Bourennane +2
We address the problem of closing the detection efficiency loophole in Bell experiments, which is crucial for real-world applications. Every Bell inequality has a critical detectio…
Quantum description of reality is epistemically incomplete
Anubhav Chaturvedi, Marcin Pawłowski, Debashis Saha
We ask whether the operational quantum description is complete at the level of preparations: can the empirically accessible properties of a finite preparation set be reproduced exa…
Quantum Bell inequalities from Information Causality -- tight for Macroscopic Locality
Mariami Gachechiladze, Bartłomiej Bąk, Marcin Pawłowski +1
In a Bell test, the set of observed probability distributions complying with the principle of local realism is fully characterized by Bell inequalities. Quantum theory allows for a…
Information Causality without concatenation
Nikolai Miklin, Marcin Pawłowski
Information Causality is a physical principle which states that the amount of randomly accessible data over a classical communication channel cannot exceed its capacity, even if th…
Quantum secure learning with classical samples
Wooyeong Song, Youngrong Lim, Hyukjoon Kwon +5
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…
Tangible reduction in learning sample complexity with large classical samples and small quantum system
Wooyeong Song, Marcin Wieśniak, Nana Liu +4
Quantum computation requires large classical datasets to be embedded into quantum states in order to exploit quantum parallelism. However, this embedding requires considerable reso…
Semi-device-independent self-testing of unsharp measurements
Nikolai Miklin, Jakub J. Borkała, Marcin Pawłowski
Unsharp quantum measurements provide a resource in scenarios where one faces the trade-off between information gain and disturbance. In this work we introduce a prepare-transform-m…
Experimentally feasible semi-device-independent certification of outcome POVMs
Piotr Mironowicz, Marcin Pawłowski
In this paper we construct a semi-device-independent protocol able to certify the presence of the generalized measurements. We show robustness of the protocol and conclude that it…
Experimental certification of an informationally complete quantum measurement in a device-independent protocol
Massimiliano Smania, Piotr Mironowicz, Mohamed Nawareg +3
Minimal informationally complete positive operator-valued measures (MIC-POVMs) are special kinds of measurement in quantum theory in which the statistics of their -outcomes ar…
Device independent witness of arbitrary dimensional quantum systems employing binary outcome measurements
Mikołaj Czechlewski, Debashis Saha, Armin Tavakoli +1
Device independent dimension witnesses (DW) are a remarkable way to test the dimension of a quantum system in a prepare-and-measure scenario imposing minimal assumptions on the int…
The influence of the choice of post-processing method on Bell inequalities
Mikołaj Czechlewski, Marcin Pawłowski
In every experimental test of a Bell inequality, we are faced with the problem of inefficient detectors. How we treat the events when no particle was detected has a big influence o…
Certifying an irreducible 1024-dimensional photonic state using refined dimension witnesses
Edgar A. Aguilar, Máté Farkas, Daniel Martínez +7
We report on a new class of dimension witnesses, based on quantum random access codes, which are a function of the recorded statistics and that have different bounds for all possib…
Connections Between Mutually Unbiased Bases and Quantum Random Access Codes
Edgar A. Aguilar, Jakub J. Borkała, Piotr Mironowicz +1
We present a new quantum communication complexity protocol, the promise--Quantum Random Access Code, which allows us to introduce a new measure of unbiasedness for bases of Hilbert…
State independent contextuality advances one-way communication
Debashis Saha, Paweł Horodecki, Marcin Pawłowski
Although `quantum contextuality' is one of the most fundamental non-classical feature, its generic role in information processing and computation is an open quest. In this article,…
Complementarity between entanglement-assisted and quantum distributed random access code
Alley Hameedi, Debashis Saha, Piotr Mironowicz +2
Collaborative communication tasks such as random access codes (RACs) employing quantum resources have manifested great potential in enhancing information processing capabilities be…
1-out-of-2 Oblivious transfer using flawed Bit-string quantum protocol
Martin Plesch, Marcin Pawlowski, Matej Pivoluska
Oblivious transfer (OT) is an important tool in cryptography. It serves as a subroutine to other complex procedures of both theoretical and practical significance. Common attribute…
Random access codes and non-local resources
Anubhav Chaturvedi, Marcin Pawlowski, Karol Horodecki
It is known that a PR-BOX (PR), a non-local resource and random access code (RAC), a functionality (wherein Alice encodes 2 bits into 1 bit message and Bob learn…
Tight bound on the classical value of generalized Clauser-Horne-Shimony-Holt games
Matej Pivoluska, Marcin Pawlowski, Martin Plesch
Non-local games are an important part of quantum information processing. Recently there has been an increased interest in generalizing non-local games beyond the basic setup by con…
Amplifying the randomness of weak sources correlated with devices
Hanna Wojewodka, Fernando G. S. L. Brandao, Andrzej Grudka +6
The problem of device-independent randomness amplification against no-signaling adversaries has so far been studied under the assumption that the weak source of randomness is uncor…
An unconditional experimental test of Nonclassicality
A. Hameedi, B. Marques, P. Mironowicz +3
We theoretically introduce and experimentally demonstrate the realization of a nonclassicality test that allows for arbitrarily low detection efficiency without invoking any extra…
Increased Certification of Semi-device Independent Random Numbers using Many Inputs and More Postprocessing
Piotr Mironowicz, Armin Tavakoli, Alley Hameedi +3
Quantum communication with systems of dimension larger than two provides advantages in information processing tasks. Examples include higher rates of key distribution and random nu…