Our Recent Publications


2024

Trade-off relations between Bell nonlocality and local Kochen-Specker contextuality in generalized Bell scenarios

Authors: Lucas E. A. Porto, Gabriel Ruffolo, Rafael Rabelo, Marcelo Terra Cunha, Pawel Kurzynski Published in: Preprint
Originally announced: May 2024


Characterizing randomness in parameterized quantum circuits through expressibility and average entanglement

Authors: Guilherme Ilário Correr, Ivan Medina, Pedro C. Azado, Alexandre Drinko, Diogo O. Soares-Pinto Published in: Preprint
Originally announced: May 2024


Quantum non-classicality in the simplest causal network

Authors: Pedro Lauand, Davide Poderini, Rafael Rabelo, Rafael Chaves
Published in: Preprint
Originally announced: Apr 2024


Observational-Interventional Bell Inequalities

Authors: Davide Poderini, Ranieri Nery, George Moreno, Santiago Zamora, Pedro Lauand, Rafael Chaves
Published in: Preprint
Originally announced: Apr 2024



2023

Can multiple observers detect KS-contextuality?

Authors: Arthur C. R. Dutra, Roberto D. Baldijão, Marcelo Terra Cunha
Published in: Preprint
Originally announced: Oct 2023


The quantum maxima for the basic graphs of exclusivity are not reachable in Bell scenarios

Authors: Lucas E. A. Porto, Rafael Rabelo, Marcelo Terra Cunha, Adán Cabello
Published in: Preprint Originally announced: May 2023


Wigner and friends, a map is not the territory! Contextuality in multi-agent paradoxes

Authors: Sidiney B. Montanhano
Published in: Philosophical Transactions of the Royal Society A
Originally announced: May 2023



2022

Witnessing Non-Classicality in a Simple Causal Structure with Three Observable Variables

Authors: Pedro Lauand, Davide Poderini, Ranieri Nery, George Moreno, Lucas Pollyceno, Rafael Rabelo, Rafael Chaves
Published in: Preprint
Originally announced: Nov 2022


No-broadcasting theorem for non-signalling boxes and assemblages

Authors: Carlos Vieira, Adrian Solymos, Cristhiano Duarte, Zoltán Zimborás
Published in: Preprint
Originally announced: Nov 2022


Synchronous observation of Bell nonlocality and state-dependent Kochen-Specker contextuality

Authors: Lei Xiao, Gabriel Ruffolo, André Mazzari, Tassius Temistocles, Marcelo Terra Cunha, Rafael Rabelo, Peng Xue
Published in: Phys. Rev. Lett. 130, 040201 (2023)
Originally announced: Apr 2022


Interplays between classical and quantum entanglement-assisted communication scenarios

Authors: Carlos Vieira, Carlos de Gois, Lucas Pollyceno, Rafael Rabelo
Published in: Preprint
Originally announced: May 2022


Differential Geometry of Contextuality

Authors: Sidiney B. Montanhano
Published in: Preprint
Originally announced: Feb 2022


2021

Entanglement-based quantum communication complexity beyond Bell nonlocality

Authors: Joseph Ho, George Moreno, Samuraí Brito, Francesco Graffitti, Christopher L. Morrison, Ranieri Nery, Alexander Pickston, Massimiliano Proietti, Rafael Rabelo, Alessandro Fedrizzi, Rafael Chaves
Published in: npj Quantum Inf 8, 13 (2022)
Originally announced: Jun 2021


Quantum communication complexity beyond Bell nonlocality

Authors: Joseph Ho, George Moreno, Samuraí Brito, Francesco Graffitti, Christopher L. Morrison, Ranieri Nery, Alexander Pickston, Massimiliano Proietti, Rafael Rabelo, Alessandro Fedrizzi, Rafael Chaves
Published in: Preprint
Originally announced: Jun 2021


Contextuality in the Bundle Approach, n-Contextuality, and the Role of Holonomyontextuality in the Fibration Approach and the Role of Holonomy

Authors: Sidiney B. Montanhano
Published in: Preprint
Originally announced: May 2021


Quantum sets of the multicolored-graph approach to contextuality

Authors: Lina Vandré, Marcelo Terra Cunha
Published in: Phys. Rev. A 106, 062210 (2022)
Originally announced: May 2021


Characterization of Contextuality with Semi-Module Čech Cohomology and its Relation with Cohomology of Effect Algebras

Authors: Sidiney B. Montanhano
Published in: Preprint
Originally announced: Apr 2021


Emergence of noncontextuality under quantum Darwinism

Authors: Roberto D. Baldijão, Rafael Wagner, Cristhiano Duarte, Bárbara Amaral, Marcelo Terra Cunha
Published in: PRX Quantum 2, 030351
Originally announced: Apr 2021


Using a resource theoretic perspective to witness and engineer quantum generalized contextuality for prepare-and-measure scenarios

Authors: Rafael Wagner, Roberto D. Baldijão, Alisson Tezzin, Bárbara Amaral
Published in: Preprint
Originally announced: Feb 2021


Semi-device-independent certification of entanglement in superdense coding

Authors: George Moreno, Ranieri Nery, Carlos de Gois, Rafael Rabelo, Rafael Chaves
Published in: Phys. Rev. A 103, 022426 (2021)
Originally announced: Feb 2021


Angular spectrum influence and entanglement characterization of Gaussian-path encoded photonic qudits

Authors: Gilberto F. Borges, Roberto D. Baldijão, Artur A. Matoso, Sebastião Pádua
Published in: Preprint
Originally announced: Jan 2021


General Method for classicality certification in the prepare and measure scenario

Authors: Carlos de Gois, George Moreno, Ranieri Nery, Samuraí Brito, Rafael Chaves, Rafael Rabelo
Published in: PRX Quantum 2, 030311 (2021)
Originally announced: Jan 2021



2020

Quantum Darwinism and the spreading of classical information in non-classical theories

Authors: Roberto D. Baldijao, Marius Krumm, Andrew J. P. Garner, Markus P. Mueller
Published in: Quantum 6, 636 (2022)
Originally announced: Dec 2020


Investigating Coarse-Grainings and Emergent Quantum Dynamics with Four Mathematical Perspectives

Authors: Cristhiano Duarte, Barbara Amaral, Marcelo Terra Cunha, Matthew Leifer
Published in: Preprint
Dated: Nov 2020


Bell Non-Locality in Many Body Quantum Systems with Exponential Decay of Correlations

Authors: Carlos H. S. Vieira, Cristhiano Duarte, Raphael C. Drumond, Marcelo Terra Cunha
Published in: Preprint (Accepted for publication at Brazilian Journal of Physics) Dated: Jun 2020


Wave-particle duality using the Compton effect

Authors: Lucas S. Pollyceno, A. D. Ribeiro
Published in: Preprint
Originally announced: May 2020


2019

Bounding the sets of classical and quantum correlations in networks

Authors: Alejandro Pozas-Kerstjens, Rafael Rabelo, Łukasz Rudnicki, Rafael Chaves, Daniel Cavalcanti, Miguel Navascues, Antonio Acín
Published in: Phys. Rev. Lett. 123, 140503 (2019)
Originally announced: Apr 2019


On Measures and Measurements: a Fibre Bundle approach to Contextuality

Authors: Marcelo Terra Cunha
Published in: Phil. Trans. R. Soc. A 377: 20190146 (2019) Dated: Mar 2019



2018

Classical Limits and Contextuality in a Scenario of Multiple Observers

Authors: Roberto D. Baldijao, Marcelo Terra Cunha
Published in: Phys. Rev. A 102.052226 (2020)
Dated: Nov 2018


Measurement compatibility in Bell nonlocality tests

Authors: Tassius Temistocles, Rafael Rabelo, Marcelo Terra Cunha
Published in: Phys. Rev. A 99, 042120 (2019)
Dated: Jun 2018


Quantifying quantum invasiveness

Authors: Saulo V. Moreira, Marcelo Terra Cunha
Published in: Phys. Rev. A 99, 022124 (2019)
Dated: Mar 2018


2017

Uniqueness of the joint measurement and the structure of the set of compatible quantum measurements

Authors: Leonardo Guerini, Marcelo Terra Cunha
Published in: Journal of Mathematical Physics 59, 042106 (2018)
Dated: Nov 2017


On geometrical aspects of the graph approach to contextuality

Authors: Barbara Amaral, Marcelo Terra Cunha
Published in: Preprint
Dated: Sep 2017


Noncontextual wirings

Authors: Barbara Amaral, Adán Cabello, Marcelo Terra Cunha, Leandro Aolita
Published in: Phys. Rev. Lett. 120, 130403 (2018)
Dated: May 2017


Operational framework for quantum measurement simulability

Authors: Leonardo Guerini, Jessica Bavaresco, Marcelo Terra Cunha, Antonio Acín
Published in: Journal of Mathematical Physics 58, 092102 (2017)
Dated: May 2017


Most incompatible measurements for robust steering tests

Authors: Jessica Bavaresco, Marco Túlio Quintino, Leonardo Guerini, Thiago O. Maciel, Daniel Cavalcanti, Marcelo Terra Cunha
Published in: Phys. Rev. A 96, 022110 (2017)
Dated: Apr 2017


Proposal for Automated Operations for Single-Photon Multipath Qudits

Authors: Roberto D. Baldijão, Gilberto F. Borges, Breno Marques, Miguel Solís-prosser, Leonardo Neves, Sebastião Pádua
Published in: Phys. Rev. A 96, 032329 (2017)
Originally announced: Mar 2017


2015

General method for constructing local-hidden-variable models for entangled quantum states

Authors: Daniel Cavalcanti, Leonardo Guerini, Rafael Rabelo, Paul Skrzypczyk
Published in: Phys. Rev. Lett. 117, 190401 (2016)
Originally announced: Dec 2015


Quantum bounds on multiplayer linear games and device-independent witness of genuine tripartite entanglement

Authors: Gláucia Murta, Ravishankar Ramanathan, Natália Móller, Marcelo Terra Cunha
Published in: Phys. Rev. A 93, 022305 (2016)
Dated: Oct 2015


Universality of finite time disentanglement

Authors: Raphael C. Drumond, Cristhiano Duarte, Marcelo Terra Cunha, Maria C. Nemes
Published in: Preprint
Dated: Oct 2015


Quantum theory allows for absolute maximal contextuality

Authors: Barbara Amaral, Marcelo Terra Cunha, Adán Cabello
Published in: Phys. Rev. A 92, 062125 (2015)
Dated: Jul 2015


Self-catalytic conversion of pure quantum states

Authors: Cristhiano Duarte, Raphael C. Drumond, Marcelo Terra Cunha
Published in: Preprint
Dated: Apr 2015



2014

Multigraph approach to quantum non-locality

Authors: Rafael Rabelo, Cristhiano Duarte, Antonio J. Lopez-Tarrida, Marcelo Terra Cunha, Adan Cabello
Published in: J. Phys. A: Math. Theor. 47 (2014) 424021
Dated: Jul 2014


Maximal tree size of few-qubit states

Authors: Huy Nguyen Le, Yu Cai, Xingyao Wu, Rafael Rabelo, Valerio Scarani
Published in: Phys. Rev. A 89, 062333 (2014)
Originally announced: Jan 2014


2013

Simple Hardy-like proof of quantum contextuality

Authors: Adan Cabello, Piotr Badziag, Marcelo Terra Cunha, Mohamed Bourennane
Published in: Phys. Rev. Lett. 111 (2013) 180404
Dated: Oct 2013


Quantum nonlocality as the route for ever-lasting unconditionally secure bit commitment

Authors: Gláucia Murta, Marcelo Terra Cunha, Adán Cabello
Published in: Preprint
Dated: Jul 2013


The exclusivity principle forbids sets of correlations larger than the quantum set

Authors: Barbara Amaral, Marcelo Terra Cunha, Adán Cabello
Published in: Phys. Rev. A 89, 030101 (2014)
Dated: Jun 2013


Experimental Test of the Quantum Violation of the Noncontextuality Inequalities for the n-Cycle Scenario

Authors: Gilberto Borges, Marcos Carvalho, Pierre-Louis de Assis, José Ferraz, Mateus Araújo, Adán Cabello, Marcelo Terra Cunha, Sebastião Pádua
Published in: Phys. Rev. A 89, 052106 (2014)
Dated: Apr 2013



2012

State-independent contextuality with identical particles

Authors: Adan Cabello, Marcelo Terra Cunha
Published in: Phys. Rev. A 87 (2013) 022126
Dated: Dec 2012


All noncontextuality inequalities for the n-cycle scenario

Authors: Mateus Araújo, Marco Túlio Quintino, Costantino Budroni, Marcelo Terra Cunha, Adán Cabello
Published in: Phys. Rev. A 88, 022118 (2013)
Dated: Jun 2012


Realistic loophole-free Bell test with atom-photon entanglement

Authors: Colin Teo, Mateus Araújo, Marco Túlio Quintino, Jiří Minář, Daniel Cavalcanti, Valerio Scarani, Marcelo Terra Cunha, Marcelo França Santos
Published in: Nat. Commun. 4:2104 (2013)
Dated: Jun 2012


Device-independent bounds for Hardy's experiment

Authors: Rafael Rabelo, Law Yun Zhi, Valerio Scarani
Published in: Phys. Rev. Lett. 109, 180401 (2012)
Originally announced: May 2012


2011

Tests of Bell inequality with arbitrarily low photodetection efficiency and homodyne measurements

Authors: Mateus Araújo, Marco Túlio Quintino, Daniel Cavalcanti, Marcelo França Santos, Adán Cabello, Marcelo Terra Cunha
Published in: Phys. Rev. A 86, 030101(R) (2012)
Dated: Dec 2011


Quantum computing with incoherent resources and quantum jumps

Authors: Marcelo F. Santos, Marcelo Terra Cunha, Rafael Chaves, Andre R. R. Carvalho
Published in: Phys. Rev. Lett. 108, 170501 (2012)
Dated: Nov 2011


Nonlocality tests enhanced by a third observer

Authors: Daniel Cavalcanti, Rafael Rabelo, Valerio Scarani
Published in: Phys. Rev. Lett. 108, 040402 (2012)
Originally announced: Oct 2011


Maximal CHSH violations with low efficiency photodetection and homodyne measurements

Authors: Marco Túlio Quintino, Mateus Araújo, Daniel Cavalcanti, Marcelo França Santos, Marcelo Terra Cunha
Published in: Journal of Physics. A, Mathematical and Theoretical, v. 45, p. 215308, 2012
Dated: Jun 2011


Device-independent certification of entangled measurements

Authors: Rafael Rabelo, Melvyn Ho, Daniel Cavalcanti, Nicolas Brunner, Valerio Scarani
Published in: Phys. Rev. Lett. 107, 050502 (2011)
Originally announced: May 2011



2010

Continuous Quantum Error Correction Through Local Operations

Authors: Eduardo Mascarenhas, Breno Marques, Marcelo Terra Cunha, Marcelo França Santos
Published in: Phys. Rev. A 82, 032327 (2010)
Dated: Sep 2010


Proposal of a two-qutrit contextuality test free of the finite precision and compatibility loopholes

Authors: Adan Cabello, Marcelo Terra Cunha
Published in: Phys. Rev. Lett. 106 (2011) 190401
Dated: Sep 2010


Protection of quantum information and optimal singlet conversion through higher dimensional quantum systems and environment monitoring

Authors: E. Mascarenhas, B. Marques, D. Cavalcanti, M. Terra Cunha, M. França Santos
Published in: Phys. Rev. A 81, 032310 (2010)
Dated: Feb 2010


2008-2009

General theory of measurement with two copies of a quantum state

Authors: Ariel Bendersky, Juan Pablo Paz, Marcelo Terra Cunha
Published in: Preprint
Dated: Apr 2009


Geometry of Entanglement Sudden Death: Explicit Examples

Authors: Raphael C. Drumond, Marcelo O. Terra Cunha
Published in: Preprint
Dated: Nov 2008


Asymptotic Entanglement Dynamics and Geometry of Quantum States

Authors: Raphael Campos Drumond, Marcelo de Oliveira Terra Cunha
Published in: J. Phys. A: Math. Theor. 42 (2009) 285308
Dated: Sep 2008


2006-2007

Geometrically induced singular behavior of entanglement

Authors: D. Cavalcanti, P. L. Saldanha, O. Cosme, F. G. S. L. Brandao, C. H. Monken, S. Padua, M. Franca Santos, M. O. Terra Cunha
Published in: Phys. Rev. A 78, 012318 (2008)
Dated: Sep 2007


The Geometry of Entanglement Sudden Death

Authors: Marcelo O. Terra Cunha
Published in: New Journal of Physics 9 (2007) 237
Dated: Mar 2007


Useful entanglement from the Pauli principle

Authors: Daniel Cavalcanti, L. M. Moreira, Franklin Matinaga, Marcelo O. Terra Cunha, Marcelo Franca Santos
Published in: Phys. Rev. B 76, 113304 (2007)
Dated: Aug 2006


Entanglement versus energy in the entanglement transfer problem

Authors: Daniel Cavalcanti, J. G. Oliveira Jr, J. G. Peixoto de Faria, Marcelo O. Terra Cunha, Marcelo Franca Santos
Published in: Phys. Rev. A 74, 042328 (2006)
Dated: Aug 2006


How to Extract Entanglement from a Piece of Solid or a Bunch of Neutrons

Authors: Marcelo O Terra Cunha, Vlatko Vedral
Published in: Acta Physica Hungarica A 26, 261-268 (2006)
Dated: Jul 2006


Estimating entanglement of unknown states

Authors: Daniel Cavalcanti, Marcelo O. Terra Cunha
Published in: Appl. Phys. Lett. 89, 084102 (2006)
Dated: May 2006


2004-2005

Entanglement quantifiers and phase transitions

Authors: Daniel Cavalcanti, Fernando G. S. L. Brandao, Marcelo O. Terra Cunha
Published in: New J. Phys. 8, 260 (2006)
Dated: Oct 2005


Geometric Phase Transition: direct measurement of a mathematical abstraction

Authors: Daniel Cavalcanti, Fernando G. S. L. Brandao, Marcelo O. Terra Cunha
Published in: Preprint
Dated: Oct 2005


Are all maximally entangled states pure?

Authors: Daniel Cavalcanti, Fernando G. S. L. Brandao, Marcelo O. Terra Cunha
Published in: Phys. Rev. A 72, 040303(R) (2005)
Dated: May 2005


Increasing identical particle entanglement by fuzzy measurements

Authors: D. Cavalcanti, M. F. Santos, M. O. Terra Cunha, C. Lunkes, V. Vedral
Published in: Phys. Rev. A 72, 062307 (2005)
Dated: May 2005


Decoherence and localization in the double well model

Authors: Gabriela Barreto Lemos, M. F. Santos, J. G. Peixoto de Faria, M. O. Terra Cunha, M. C. Nemes
Published in: Preprint
Dated: Apr 2005


Quantum Erasure: Quantum Interference Revisited

Authors: Stephen P. Walborn, Marcelo O. Terra Cunha, Sebastião Pádua, Carlos H. Monken
Published in: American Scientist 91, 336-343 (2003)
Dated: Mar 2005