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We make use of Shannon entropy ($S$) and Fisher information ($I$) to study the response of atomic density profiles of a spin-orbit coupled Bose-Einstein condensate to changes in the wave number ($\kappa_L$) of the Raman laser that couples…

量子气体 · 物理学 2021-12-28 Golam Ali Sekh , Benoy Talukdar , Supriya Chatterjee , Basir Ahamed Khan

The application of the Shannon entropy to study the relationship between information and structures has yielded insights into molecular and material systems. However, the difficulty in directly observing and manipulating atoms and molecules…

The paper examines relationships between the conditional Shannon entropy and the expectation of $\ell_{\alpha}$-norm for joint probability distributions. More precisely, we investigate the tight bounds of the expectation of…

信息论 · 计算机科学 2020-08-24 Yuta Sakai , Ken-ichi Iwata

We study theoretically the electron states in a system of two vertically stacked quantum dots. We investigate the influence of the geometrical symmetry breaking (caused by the displacement as well as the ellipticity of the dots) on the…

介观与纳米尺度物理 · 物理学 2014-09-05 Krzysztof Gawarecki , Paweł Machnikowski , Tilmann Kuhn

This paper considers a theoretical model of the double-slit experiment with electrons whose paths are monitored. This monitoring, inspired by a recent text by Maudlin, is performed by the Coulomb scattering of the electron by a proton. A…

量子物理 · 物理学 2025-07-01 Frederick W. Strauch

We present an extensive comparative study of ground-state densities and pair distribution functions for electrons confined in two-dimensional parabolic quantum dots over a broad range of coupling strength and electron number. We first use…

介观与纳米尺度物理 · 物理学 2007-05-23 M. Gattobigio , P. Capuzzi , M. Polini , R. Asgari , M. P. Tosi

The entropic uncertainty measures of the multidimensional hydrogenic states quantify the multiple facets of the spatial delocalization of the electronic probability density of the system. The Shannon entropy is the most adequate uncertainty…

量子物理 · 物理学 2019-11-19 Irene V. Toranzo , David Puertas-Centeno , Nahual Sobrino , Jesús S. Dehesa

We study a system of two Coulombically interacting electrons in an external harmonic potential in the presence of an on-centre Coulomb impurity. Detailed results for the dependencies of the reduced von Neumann entropy on the control…

量子物理 · 物理学 2017-07-17 Przemyslaw Koscik

This paper studies the Shannon regime for the random displacement of stationary point processes. Let each point of some initial stationary point process in $\R^n$ give rise to one daughter point, the location of which is obtained by adding…

信息论 · 计算机科学 2015-03-17 Venkat Anantharam , Francois Baccelli

We have recently proposed a quantum control method based on the knowledge of the energy spectrum as a function of an external control parameter [Phys. Rev. Lett. {\bf 99}, 036806 (2007)]. So far, our method has been applied to connect the…

介观与纳米尺度物理 · 物理学 2009-02-07 G. E. Murgida , D. A. Wisniacki , P. I. Tamborenea

Shannon quantum information entropies $S_{x,k}$, Fisher informations $I_{x,k}$, Onicescu energies $O_{x,k}$ and statistical complexities $e^{S_{x,k}}O_{x,k}$ are calculated both in the position (subscript $x$) and momentum ($k$)…

介观与纳米尺度物理 · 物理学 2018-08-22 O. Olendski

We introduce an entanglement entropy analysis to quantitatively identify the confinement and deconfinement of the spinons in the spin excitations of quantum magnets. Our proposal is implemented by the parton construction of a…

强关联电子 · 物理学 2021-12-01 Zhao-Yang Dong , Wei Wang , Zhao-Long Gu , Jian-Xin Li

Bound and resonance states of helium atom have been investigated inside a quantum dot by using explicitly correlated Hylleraas type basis set within the framework of stabilization method. To be specific, precise energy eigenvalues of bound…

原子物理 · 物理学 2016-08-03 Jayanta K. Saha , S. Bhattacharyya , T. K. Mukherjee

approaches. We demonstrate that the Wigner regime can be reached using small values of the confinement parameter. To obtain physical insight in our results we analyze them with a semi-analytical model for two electrons. Thanks to…

The location of electrons governs phenomena ranging from chemical bonding and electric polarization to the topological classification of band insulators and the emergence of correlated states in quantum matter. While a prescription exists…

材料科学 · 物理学 2026-03-31 Haylen Gerhard , Yifan Wang , Alexander Cerjan , Wladimir A. Benalcazar

Shell confined atom can serve as a generalized model to explain both \emph{free} and \emph{confined} condition. In this scenario, an atom is trapped inside two concentric spheres of inner $(R_{a})$ and outer $(R_{b})$ radius. The choice of…

量子物理 · 物理学 2022-05-19 Neetik Mukherjee , Amlan K. Roy

We describe an efficient theoretical criterion, suitable for indistinguishable particles to quantify the quantum correlations of any pure two-fermion state, based on the Slater rank concept. It represents the natural generalization of the…

量子物理 · 物理学 2007-05-23 Fabrizio Buscemi , Paolo Bordone , Andrea Bertoni

Quantum entropies and state distances are analyzed in polaronic systems with short range (Holstein model) and long range (Fr$\ddot{o}$hlich model) electron-phonon coupling. These quantities are extracted by a variational wave function which…

强关联电子 · 物理学 2015-05-19 C. A. Perroni , V. Marigliano Ramaglia , V. Cataudella

Data partitioning that maximizes/minimizes the Shannon entropy, or more generally the R\'enyi entropy is a crucial subroutine in data compression, columnar storage, and cardinality estimation algorithms. These partition algorithms can be…

数据结构与算法 · 计算机科学 2025-11-05 Aryan Esmailpour , Sanjay Krishnan , Stavros Sintos

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…

量子气体 · 物理学 2024-10-04 Sk Siddik , Golam Ali Sekh