Leggett–garg inequalities
In contrast to the spatial Bell's inequalities which probe entanglement between spatially
separated systems, the Leggett–Garg inequalities test the correlations of a single system …
separated systems, the Leggett–Garg inequalities test the correlations of a single system …
No fine theorem for macrorealism: Limitations of the Leggett-Garg inequality
Tests of local realism and macrorealism have historically been discussed in very similar
terms: Leggett-Garg inequalities follow Bell inequalities as necessary conditions for classical …
terms: Leggett-Garg inequalities follow Bell inequalities as necessary conditions for classical …
Experimental localisation of quantum entanglement through monitored classical mediator
Quantum entanglement is a form of correlation between quantum particles that cannot be
increased via local operations and classical communication. It has therefore been proposed …
increased via local operations and classical communication. It has therefore been proposed …
Single-system-based generation of certified randomness using leggett-garg inequality
We theoretically formulate and experimentally demonstrate a secure scheme for semi-
device-independent quantum random number generation by utilizing Leggett-Garg …
device-independent quantum random number generation by utilizing Leggett-Garg …
[HTML][HTML] Controlling NMR spin systems for quantum computation
JA Jones - Progress in Nuclear Magnetic Resonance …, 2024 - Elsevier
Nuclear magnetic resonance is arguably both the best available quantum technology for
implementing simple quantum computing experiments and the worst technology for building …
implementing simple quantum computing experiments and the worst technology for building …
Violation of noninvasive macrorealism by a superconducting qubit: Implementation of a Leggett-Garg test that addresses the clumsiness loophole
The Leggett-Garg inequality holds for any macrorealistic system that is being measured
noninvasively. A violation of the inequality can signal that a system does not conform to our …
noninvasively. A violation of the inequality can signal that a system does not conform to our …
Nonclassicality of the harmonic-oscillator coherent state persisting up to the macroscopic domain
Can the most “classical-like” of all quantum states, namely the Schrödinger coherent state of
a harmonic oscillator, exhibit nonclassical behavior? We find that for an oscillating object …
a harmonic oscillator, exhibit nonclassical behavior? We find that for an oscillating object …
Experimental demonstration of the validity of the quantum heat-exchange fluctuation relation in an NMR setup
We experimentally explore the validity of the Jarzynski and Wójcik quantum heat-exchange
fluctuation relation by implementing an interferometric technique in liquid-state nuclear …
fluctuation relation by implementing an interferometric technique in liquid-state nuclear …
Loophole-free interferometric test of macrorealism using heralded single photons
We show unambiguous violations of the different macrorealist inequalities, like the Leggett-
Garg inequality (LGI) and its variant called Wigner's form of the Leggett-Garg inequality …
Garg inequality (LGI) and its variant called Wigner's form of the Leggett-Garg inequality …
Causal structures from entropic information: geometry and novel scenarios
Bell's theorem in physics, as well as causal discovery in machine learning, both face the
problem of deciding whether observed data is compatible with a presumed causal …
problem of deciding whether observed data is compatible with a presumed causal …