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Facets of the Leggett-Garg Inequality: Some Recent Studies


Affiliations
1 Center for Astroparticle Physics and Space Science, Bose Institute, Kolkata 700 091, India
 

In this article, we begin by briefly reviewing the basics of the Leggett-Garg inequality which is a temporal analogue of Bell's inequality, based on the notions of realism and noninvasive measurability. This is followed by outlining the core ideas and key results of two different types of recent studies related to the Leggett-Garg inequality, bringing out its ramifications concerning unsharp measurements and quantum key distribution respectively.

Keywords

Leggett–Garg Inequality, Noninvasive Measurability, Quantum Cryptography, Realism, Unsharp Measurements.
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  • Facets of the Leggett-Garg Inequality: Some Recent Studies

Abstract Views: 362  |  PDF Views: 124

Authors

Dipankar Home
Center for Astroparticle Physics and Space Science, Bose Institute, Kolkata 700 091, India

Abstract


In this article, we begin by briefly reviewing the basics of the Leggett-Garg inequality which is a temporal analogue of Bell's inequality, based on the notions of realism and noninvasive measurability. This is followed by outlining the core ideas and key results of two different types of recent studies related to the Leggett-Garg inequality, bringing out its ramifications concerning unsharp measurements and quantum key distribution respectively.

Keywords


Leggett–Garg Inequality, Noninvasive Measurability, Quantum Cryptography, Realism, Unsharp Measurements.

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DOI: https://doi.org/10.18520/cs%2Fv109%2Fi11%2F1980-1986