Cramér–Rao inequality revisited

Rao, P. V.

doi:10.1007/s12044-020-00580-w

Proc Math Sci

2020

DOI: 10.1007/s12044-020-00580-w

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Cramér–Rao inequality revisited

P. V. Rao

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2024

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Information theoretic measures on quantum droplets in ultracold atomic systems

Siddik,

Ali Sekh

2024

Phys. Scr.

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We consider Shannon entropy, Fisher information, R\'enyi entropy, and Tsallis entropy to study the quantum droplet phase in Bose-Einstein condensates. In the beyond mean-field description, the Gross-Pitaevskii equation with Lee-Huang-Yang correction gives a family of quantum droplets with different chemical potentials. At a larger value of chemical potential, quantum droplet with sharp-top probability density distribution starts to form while it becomes flat top for a smaller value of chemical potential. We show that entropic measures can distinguish the shape change of the probability density distributions and thus can identify the onset of the droplet phase. During the onset of droplet phase, the Shannon entropy decreases gradually with the decrease of chemical potential and attains a minimum in the vicinity where a smooth transition from flat-top to sharp-top QDs occurs. At this stage, the Shannon entropy increases abruptly with the lowering of chemical potential. We observe an opposite trend in the case of Fisher information. These results are found to be consistent with the R\'enyi and Tsallis entropic measures.

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Information theoretic measures on quantum droplets in ultracold atomic systems

Siddik,

Ali Sekh

2024

Phys. Scr.

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show abstract

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Cramér–Rao inequality revisited

Cited by 1 publication

References 23 publications

Information theoretic measures on quantum droplets in ultracold atomic systems

Information theoretic measures on quantum droplets in ultracold atomic systems

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