Bell Nonlocality

By Nicolas Brunner, Daniel Cavalcanti, Stefano Pironio, Valerio Scarani, Stephanie Wehner. 2013

1,967 citations recorded by the source corpus.

Nonlocality was discovered by John Bell in 1964, in the context of the debates about quantum theory, but is a phenomenon that can be studied in its own right. Its observation proves that measurements are not revealing pre-determined values, falsifying the idea of “local hidden variables” suggested by Einstein and others. One is then forced to make some radical choice: either nature is intrinsically statistical and individual events are unspeakable, or our familiar space-time cannot be the setting for the whole of physics. As phenomena, nonlocality and its consequences will have to be predicted by any future theory, and may possibly play the role of foundational principles in these developments. But nonlocality has found a role in applied physics too: it can be used for “device-independent” certification of the correct functioning of random number generators and other devices. After a self-contained introduction to the topic, this monograph on nonlocality presents the main tools and results following a logical, rather than a chronological, order.

Subfields: Artificial Intelligence, Atomic and Molecular Physics, and Optics, Physical and Theoretical Chemistry

View Paper: https://www.semanticscholar.org/paper/ebf148dde467bfcbb0fcd09c907e4e657031d2a8

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In Artificial Intelligence

In Atomic and Molecular Physics, and Optics

In Physical and Theoretical Chemistry

Martin Bodo Plenio

Citations in the corpus

Micius quantum experiments in space (2022, background): “…1ffiffiffi 2 p ðj0i1j0i2 j1i1j1i2Þ: ð2Þ These entangled states are referred to as Bell states since they maximally violate a Bell inequality (Bell, 1964; Clauser et al., 1969), showing a stark contradiction between classical local hidden variable theory and quantum mechanics (Brunner et al., 2014).”
Entanglement certification from theory to experiment (2018, background): “Today, the study of Bell-like inequalities is an active field of research [16], culminating in recent experimental tests closing all loopholes [17–19].”
Observation of entangled states of a fully-controlled 20 qubit system (2017, background): “The ability to generate quantum entanglement [1,2] between large numbers of spatially separated and individually controllable quantum systems—such as qubits—is of fundamental importance to a broad range of current research endeavors, including studies of nonlocality [3], quantum computing [4], quant”
Quantum random number generators (2016, methodology): “Experimental tests of Bell’s Inequality (Brunner et al., 2014) need a random choice of basis which can be done with an external QRNG connected to a switch like in the experiments of (Weihs et al., 1998) and (Scheidl et al., 2010) that used the QRNG in (Jennewein et al., 2000) or with a passive…”