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Quantum rotor in a two-dimensional mesoscopic Bose gas

Version 1.0

Suchorowski, Michał, 2025, "Quantum rotor in a two-dimensional mesoscopic Bose gas", https://doi.org/10.58132/YDJRDI, Dane Badawcze UW, V1

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Description

The dataset contains data related to the publication "Quantum rotor in a two-dimensional mesoscopic Bose gas" by Michał Suchorowski, Alina Badamshina, Mikhail Lemeshko, Michał Tomza, Artem G. Volosniev published in SciPost Phys. 18, 059 (2025).

Data was produced using own developed code.

Each Zip file contains source data for Figures in the associated publication. The data consists of the model's parameters and observables obtained by numerically solving the extended Gross-Piteavskii equation for the two-dimensional Bose-Einstein condensate with a single quantum rotor.

In files, there are the following parameters and observables:

Parameters:

N_g - spacial grid size in a single direction,

N_b - number of bosons in the system,

alpha - bosons-impurity interactions strength,

g - boson-boson interaction strength,

L - total angular momentum of the system,

omega - rotational constant of the molecule multiplied by 2: omega = 2*B_rot,

k - harmonic constant of the trapping potential,

r0 - range of the interaction potential (always set as sqrt(2)).

Observables:

A - angular momentum of the bosonic bath per particle,

E - the total energy per particle,

mu - chemical potential,

f - integral of the squared density of the condensate: \int |psi|^4,

A2 - expectation value of the bath's angular momentum squared,

devA - the standard deviation of the bath's angular momentum,

DE - rotational energy defined as E(L)-E(L=0),

J - the angular momentum of the impurity,

B_eff - effective rotational consant,

Ekin - kinetic energy,

Epot - potential energy.


Each zip file consist of the data files, Python script that read the files and output plots in pdf format. Data files from numerical calculations are in the text format. Data files from the analytical calculations are in the npy format. The describtion of each data file's structure can be found in the README.txt.

(2024)
Subject
Physics
Keyword

Bose gas, angulon, impurity, 2D

Related Publication

Suchorowski, Michał & Badamshina, Alina & Lemeshko, Mikhail & Tomza, Michał & Volosniev, Artem. (2025). Quantum rotor in a two-dimensional mesoscopic Bose gas. SciPost Physics. 18,059, https://doi.org/10.21468/SciPostPhys.18.2.059. https://doi.org/10.21468/SciPostPhys.18.2.059 doi: 10.21468/SciPostPhys.18.2.059

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README.txt
Plain Text - 6.1 KB - Mar 20, 2025 - 0 Downloads
MD5: b461f82d56a83aed623a1a9b0b27c7a9
License: CC0 Creative Commons Zero 1.0
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Fig2.zip
ZIP Archive - 374.8 KB - Mar 20, 2025 - 0 Downloads
MD5: c492073093db902095a2f5ef74a08ccb
License: CC BY - Creative Commons Attribution 4.0
The data and Python script allow reproducing Figure 2 from the linked publication. The REAMME.txt file provides more detailed information about the data structure.
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Fig3.zip
ZIP Archive - 2.9 MB - Mar 20, 2025 - 0 Downloads
MD5: 822d22315ff5b37e764d0895de0480b5
License: CC BY - Creative Commons Attribution 4.0
The data and Python script allow reproducing Figure 3 from the linked publication. The REAMME.txt file provides more detailed information about the data structure.
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Fig4a.zip
ZIP Archive - 337.3 KB - Mar 20, 2025 - 0 Downloads
MD5: 9ab948eeb1ecfe1c5defb600027413ce
License: CC BY - Creative Commons Attribution 4.0
The data and Python script allow reproducing Figure 4(a) from the linked publication. The REAMME.txt file provides more detailed information about the data structure.
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Fig4b.zip
ZIP Archive - 263.6 KB - Mar 20, 2025 - 0 Downloads
MD5: 08b69d33f329457aa2a24bb04c22c6b5
License: CC BY - Creative Commons Attribution 4.0
The data and Python script allow reproducing Figure 4(b) from the linked publication. The REAMME.txt file provides more detailed information about the data structure.
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Fig5a.zip
ZIP Archive - 692.0 KB - Mar 20, 2025 - 0 Downloads
MD5: 9b241725712e5b47125b22613f7feaee
License: CC BY - Creative Commons Attribution 4.0
The data and Python script allow reproducing Figure 5(a) from the linked publication. The REAMME.txt file provides more detailed information about the data structure.
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Fig5b.zip
ZIP Archive - 416.9 MB - Mar 20, 2025 - 0 Downloads
MD5: e1eb4f9067600114299c3ffd3b9c6e23
License: CC BY - Creative Commons Attribution 4.0
The data and Python script allow reproducing Figure 5(b) from the linked publication. The REAMME.txt file provides more detailed information about the data structure.
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Fig6.zip
ZIP Archive - 186.5 KB - Mar 20, 2025 - 0 Downloads
MD5: d15757bdcca2f66815d659025a5b0068
License: CC BY - Creative Commons Attribution 4.0
The data and Python script allow reproducing Figure 6 from the linked publication. The REAMME.txt file provides more detailed information about the data structure.
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Fig7&11.zip
ZIP Archive - 1.2 MB - Mar 20, 2025 - 0 Downloads
MD5: 629e7c33936a3b70bab5cc25ce51733a
License: CC BY - Creative Commons Attribution 4.0
The data and Python script allow reproducing Figures 7 and 11 from the linked publication. The REAMME.txt file provides more detailed information about the data structure.
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Fig8.zip
ZIP Archive - 303.8 KB - Mar 20, 2025 - 0 Downloads
MD5: ee07de00895404193334135613e413ca
License: CC BY - Creative Commons Attribution 4.0
The data and Python script allow reproducing Figure 8 from the linked publication. The REAMME.txt file provides more detailed information about the data structure.
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