Suchergebnisse - "Cavalcanti, Eric G."

Classical Causal Models for Bell and Kochen-Specker Inequality Violations Require Fine-Tuning von Cavalcanti, Eric G.

“… Nonlocality and contextuality are at the root of conceptual puzzles in quantum mechanics, and they are key resources for quantum advantage in …”
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A possibilistic no-go theorem on the Wigner’s friend paradox von Haddara, Marwan, Cavalcanti, Eric G

“… The famous ‘Wigner’s friend’ paradox highlights the difficulty of modelling the evolution of quantum systems under measurement in situations where observers …”
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Implications of Local Friendliness Violation for Quantum Causality von Cavalcanti, Eric G., Wiseman, Howard M.

“… We provide a new formulation of the Local Friendliness no-go theorem of Bong et al. [Nat. Phys. 16, 1199 (2020)] from fundamental causal principles, providing …”
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Nonlocality activation in a photonic quantum network von Villegas-Aguilar, Luis, Polino, Emanuele, Ghafari, Farzad, Quintino, Marco Túlio, Laverick, Kiarn T., Berkman, Ian R., Rogge, Sven, Shalm, Lynden K., Tischler, Nora, Cavalcanti, Eric G., Slussarenko, Sergei, Pryde, Geoff J.

“… Bell nonlocality refers to correlations between two distant, entangled particles that challenge classical notions of local causality. Beyond its foundational …”
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Weak values in a classical theory with an epistemic restriction von Karanjai, Angela, Cavalcanti, Eric G, Bartlett, Stephen D, Rudolph, Terry

“… Weak measurement of a quantum system followed by postselection based on a subsequent strong measurement gives rise to a quantity called the weak value: a …”
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The View from a Wigner Bubble von Cavalcanti, Eric G.

“… In a recent no-go theorem [Bong et al., Nature Physics (2020)], we proved that the predictions of unitary quantum mechanics for an extended Wigner’s friend …”
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Variations on the Choi–Jamiołkowski isomorphism von Frembs, Markus, Cavalcanti, Eric G

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A strong no-go theorem on the Wigner’s friend paradox von Bong, Kok-Wei, Utreras-Alarcón, Aníbal, Ghafari, Farzad, Liang, Yeong-Cherng, Tischler, Nora, Cavalcanti, Eric G., Pryde, Geoff J., Wiseman, Howard M.

“… Does quantum theory apply at all scales, including that of observers? New light on this fundamental question has recently been shed through a resurgence of …”
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No ψ -Epistemic Model Can Fully Explain the Indistinguishability of Quantum States von Barrett, Jonathan, Cavalcanti, Eric G., Lal, Raymond, Maroney, Owen J. E.

“… According to a recent no-go theorem [M. Pusey, J. Barrett and T. Rudolph, Nat. Phys. 8, 475 (2012)], models in which quantum states correspond to probability …”
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Experimental Measurement-Device-Independent Quantum Steering and Randomness Generation Beyond Qubits von Guo, Yu, Cheng, Shuming, Hu, Xiaomin, Liu, Bi-Heng, Huang, En-Ming, Huang, Yun-Feng, Li, Chuan-Feng, Guo, Guang-Can, Cavalcanti, Eric G.

“… In a measurement-device-independent or quantum-refereed protocol, a referee can verify whether two parties share entanglement or Einstein-Podolsky-Rosen (EPR) …”
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A "thoughtful" Local Friendliness no-go theorem: a prospective experiment with new assumptions to suit von Wiseman, Howard M., Cavalcanti, Eric G., Rieffel, Eleanor G.

“… A recent paper by two of us and co-workers \cite{CQD20}, based on an extended Wigner's friend scenario, demonstrated that certain empirical correlations …”
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On the consistency of relative facts von Cavalcanti, Eric G., Di Biagio, Andrea, Rovelli, Carlo

“… Lawrence et al. have presented an argument purporting to show that “relative facts do not exist” and, consequently, “Relational Quantum Mechanics is …”
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Fresh perspectives on the foundations of quantum physics von Cavalcanti, Eric G, Chaves, Rafael, Giacomini, Flaminia, Liang, Yeong-Cherng

“… As we are at the beginning of the second century of quantum physics, we asked four researchers to share their views on new research directions trying to answer …”
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Bell's theorem and the measurement problem: reducing two mysteries to one? von Cavalcanti, Eric G.

“… In light of a recent reformulation of Bell's theorem from causal principles by Wiseman and the author, I argue that the conflict between quantum theory and …”
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Einstein-Podolsky-Rosen steering inequalities from entropic uncertainty relations von Schneeloch, James, Broadbent, Curtis J., Walborn, Stephen P., Cavalcanti, Eric G., Howell, John C.

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Bell Nonlocality, Signal Locality and Unpredictability (or What Bohr Could Have Told Einstein at Solvay Had He Known About Bell Experiments) von Cavalcanti, Eric G., Wiseman, Howard M.

“… The 1964 theorem of John Bell shows that no model that reproduces the predictions of quantum mechanics can simultaneously satisfy the assumptions of locality …”
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Measurements on the reality of the wavefunction von Ringbauer, M., Duffus, B., Branciard, C., Cavalcanti, E. G., White, A. G., Fedrizzi, A.

“… Quantum mechanics is an outstandingly successful description of nature, underpinning fields from biology through chemistry to physics. At its heart is the …”
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Experimental generalized contextuality with single-photon qubits von Zhan, Xiang, Cavalcanti, Eric G., Li, Jian, Bian, Zhihao, Zhang, Yongsheng, Wiseman, Howard M., Xue, Peng

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One-sided device-independent quantum key distribution: Security, feasibility, and the connection with steering von Branciard, Cyril, Cavalcanti, Eric G., Walborn, Stephen P., Scarani, Valerio, Wiseman, Howard M.

“… We analyze the security and feasibility of a protocol for quantum key distribution (QKD) in a context where only one of the two parties trusts his measurement …”
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Entanglement verification and steering when Alice and Bob cannot be trusted von Cavalcanti, Eric G., Hall, Michael J. W., Wiseman, Howard M.

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