Bell inequality, steering, incompatibility and Leggett–Garg inequality under coarsening measurement
Sign Up to like & getrecommendations! Published in 2018 at "Quantum Information Processing"
DOI: 10.1007/s11128-018-1938-2
Abstract: We investigate the effects of the coarsening measurement on the quantum-to-classical transition by Bell–Clauser–Horne–Shimony–Holt (Bell–CHSH) non-locality for the conventional two-qubit system, the Leggett–Garg inequality for a two-level system, and steering and incompatibility both in the… read more here.
Keywords: garg inequality; coarsening measurement; inequality; incompatibility ... See more keywords
Quantum work fluctuations versus macrorealism in terms of non-extensive entropies
Sign Up to like & getrecommendations! Published in 2018 at "Physica A: Statistical Mechanics and its Applications"
DOI: 10.1016/j.physa.2018.03.030
Abstract: Abstract Fluctuations of the work performed on a driven quantum system can be characterized by the so-called fluctuation theorems. The Jarzynski relation and the Crooks theorem are famous examples of exact equalities characterizing non-equilibrium dynamics.… read more here.
Keywords: work; macrorealism; garg inequalities; work fluctuations ... See more keywords
Experimental violation of the Leggett-Garg inequality in a three-level system
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DOI: 10.1088/1367-2630/aa5c51
Abstract: The Leggett–Garg (LG) test of macroscopic realism involves a series of dichotomic non-invasive measurements that are used to calculate a function which has a fixed upper bound for a macrorealistic system and a larger upper… read more here.
Keywords: system; level system; level; upper bound ... See more keywords
Exploration of an augmented set of Leggett-Garg inequalities using a noninvasive continuous-in-time velocity measurement
Sign Up to like & getrecommendations! Published in 2019 at "Physical Review A"
DOI: 10.1103/physreva.100.042325
Abstract: Macroscopic realism (MR) is the view that a system may possess definite properties at any time independent of past or future measurements, and may be tested experimentally using the Leggett-Garg inequalities (LGIs). In this work… read more here.
Keywords: time; velocity; augmented set; leggett garg ... See more keywords
Violation of Leggett-Garg-type inequalities in a driven two-level atom interacting with a squeezed thermal reservoir
Sign Up to like & getrecommendations! Published in 2019 at "Physical Review A"
DOI: 10.1103/physreva.100.062132
Abstract: The violation of Leggett-Garg-type inequalities (LGtIs) is studied on a two-level atom, driven by an external field in the presence of a squeezed thermal reservoir. The violations are observed in the underdamped regime where the… read more here.
Keywords: type inequalities; two level; leggett garg; violation leggett ... See more keywords
Leggett-Garg tests for macrorealism: Interference experiments and the simple harmonic oscillator
Sign Up to like & getrecommendations! Published in 2021 at "Physical Review A"
DOI: 10.1103/physreva.103.032218
Abstract: Leggett-Garg (LG) tests for macrorealism were originally designed to explore quantum coherence on the macroscopic scale. Interference experiments and systems modelled by harmonic oscillators provide useful examples of situations in which macroscopicity has been approached… read more here.
Keywords: tests macrorealism; simple harmonic; leggett garg; garg tests ... See more keywords
Experimental violation of the Leggett-Garg inequality with a single-spin system
Sign Up to like & getrecommendations! Published in 2022 at "Physical Review A"
DOI: 10.1103/physreva.105.042613
Abstract: Maimaitiyiming Tusun, 2, 3 Wei Cheng, 2 Zihua Chai, 2 Yang Wu, 2 Ya Wang, 2 Xing Rong, 2, ∗ and Jiangfeng Du 2, † CAS Key Laboratory of Microscale Magnetic Resonance and School of… read more here.
Keywords: physics; leggett garg; garg inequality; inequality single ... See more keywords
Violations of a Leggett-Garg inequality without signaling for a photonic qutrit probed with ambiguous measurements
Sign Up to like & getrecommendations! Published in 2018 at "Physical Review A"
DOI: 10.1103/physreva.97.020101
Abstract: We realise a quantum three-level system with photons distributed among three different spatial and polarization modes. Ambiguous measurement of the state of the qutrit are realised by blocking one out for the three modes at… read more here.
Keywords: garg inequality; violations leggett; qutrit; ambiguous measurements ... See more keywords
Quantum violation of variants of Leggett-Garg inequalities up to the algebraic maximum for a qubit system
Sign Up to like & getrecommendations! Published in 2018 at "Physical Review A"
DOI: 10.1103/physreva.98.062115
Abstract: In 1985, Leggett and Garg formulated a class of inequalities for testing the compatibility between macrorealism and quantum mechanics. In this paper, we point out that based on the same assumptions of macrorealism that are… read more here.
Keywords: quantum violation; qubit system; system; garg inequalities ... See more keywords