This preprint is under consideration at Scientific Reports. A preprint is a preliminary version of a manuscript that has not completed peer review at a journal. Research Square does not conduct peer review prior to posting preprints. The posting of a preprint on this server should not be interpreted as an endorsement of its validity or suitability for dissemination as established information or for guiding clinical practice.
Learn more about In Review
A new preprint design is coming!
We have improved readability, clarity, accessibility, and opportunities for engagement.
Research Article
Krzysztof Gawryluk
University of Białystok
Corresponding Author
License:
This work is licensed under a CC BY 4.0 License. Read Full License
We theoretically study the sound propagation in a two-dimensional weakly interacting uniform Bose gas. Using the classical fields approximation we analyze in detail the properties of density waves generated both in a weak and strong perturbation regimes. While in the former case density excitations can be described in terms of hydrodynamic or collisionless sound, the strong disturbance of the system results in a qualitatively different response. Within this regime we identify observed structures as quasisolitons and uncover their internal complexity. Quasisolitons break into vortex pairs as time progresses, eventually reaching an equilibrium state. We find this state, characterized by only fluctuating in time averaged number of pairs of opposite charge vortices and by appearance of a quasi-long-range order, as the Berezinskii-Kosterlitz-Thouless (BKT) phase.
Keywords
Berezinskii-Kosterlitz-Thouless (BKT) phase, dissipating quasisolitons, Bose gas, Sound waves
Figure 1
Figure 2
Figure 3
Figure 4
Figure 5
Figure 6
Figure 7
The full text of this article is available to read as a PDF.
No competing interests reported.
Loading...
Badges
Prescreen
This manuscript passed our Prescreen assessment
Complete author information
Appropriate declaration statements
Potential risks to human health
Prescreen
Peer Review Timeline
CURRENT STATUS: Under Review
Version 1
Posted 03 Feb, 2021
No community comments so far
Editorial decision: Major revision
On 18 Mar, 2021
Reviews received
Received 23 Feb, 2021
Reviewers agreed
On 23 Feb, 2021
Reviewers agreed
On 03 Feb, 2021
Reviewers invited
Invitations sent on 02 Feb, 2021
Editor assigned
On 01 Feb, 2021
Editor invited
On 28 Jan, 2021
Submission checks complete
On 28 Jan, 2021
First submitted
On 26 Jan, 2021
Metrics
Comments: 0
PDF Downloads: ...
HTML Views: ...
Subject Areas
Atomic and Molecular Physics
Learn more about our company.
A new preprint design is coming!
We have improved readability, clarity, accessibility, and opportunities for engagement.
This preprint is under consideration at Scientific Reports. A preprint is a preliminary version of a manuscript that has not completed peer review at a journal. Research Square does not conduct peer review prior to posting preprints. The posting of a preprint on this server should not be interpreted as an endorsement of its validity or suitability for dissemination as established information or for guiding clinical practice.
Learn more about In Review
Research Article
Krzysztof Gawryluk
University of Białystok
Corresponding Author
Badges
Prescreen
This manuscript passed our Prescreen assessment
Complete author information
Appropriate declaration statements
Potential risks to human health
Prescreen
Peer Review Timeline
CURRENT STATUS: Under Review
Version 1
Posted 03 Feb, 2021
No community comments so far
Editorial decision: Major revision
On 18 Mar, 2021
Reviews received
Received 23 Feb, 2021
Reviewers agreed
On 23 Feb, 2021
Reviewers agreed
On 03 Feb, 2021
Reviewers invited
Invitations sent on 02 Feb, 2021
Editor assigned
On 01 Feb, 2021
Editor invited
On 28 Jan, 2021
Submission checks complete
On 28 Jan, 2021
First submitted
On 26 Jan, 2021
Metrics
Comments: 0
PDF Downloads: ...
HTML Views: ...
Subject Areas
Atomic and Molecular Physics
License:
This work is licensed under a CC BY 4.0 License. Read Full License
We theoretically study the sound propagation in a two-dimensional weakly interacting uniform Bose gas. Using the classical fields approximation we analyze in detail the properties of density waves generated both in a weak and strong perturbation regimes. While in the former case density excitations can be described in terms of hydrodynamic or collisionless sound, the strong disturbance of the system results in a qualitatively different response. Within this regime we identify observed structures as quasisolitons and uncover their internal complexity. Quasisolitons break into vortex pairs as time progresses, eventually reaching an equilibrium state. We find this state, characterized by only fluctuating in time averaged number of pairs of opposite charge vortices and by appearance of a quasi-long-range order, as the Berezinskii-Kosterlitz-Thouless (BKT) phase.
Figure 1
Figure 2
Figure 3
Figure 4
Figure 5
Figure 6
Figure 7
The full text of this article is available to read as a PDF.
No competing interests reported.
Loading...