Quantum vortex in a fluid flow: negative effective mass and a novel mechanism for turbulence formation

• URL: http://arxiv.org/abs/2606.15803v1
• Date: Sun, 14 Jun 2026 13:09:02 GMT
• Title: Quantum vortex in a fluid flow: negative effective mass and a novel mechanism for turbulence formation
• Abstract summary: We explore the movement of a thin, circular quantum vortex filament within an infinite cylindrical pipe.<n>Our study examines the energy spectrum $E = E(p)$, where $p$ represents the total momentum of a vortex ring.<n>The discovered spectrum $E(p)$ reveals the existence of states with both negative and extremely large effective masses.
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• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: We explore the movement of a thin, circular quantum vortex filament within an infinite cylindrical pipe. The fluid surrounding the vortex ring moves through the pipe at a non-zero velocity denoted by $v$. Our study examines the energy spectrum $E = E(p)$, where $p$ represents the total momentum of a vortex ring. We have demonstrated that the function $E(p)$ significantly depends on the velocity $v$. The discovered spectrum $E(p)$ reveals the existence of states with both negative and extremely large effective masses. We also explored the hypothesis regarding the existence of coupled vortex pairs possessing finite summary effective masses. Every pair consists of vortices that possess both positive and negative masses, with the magnitude of these masses being unrestricted. In our model, the criterion for the appearance of these states is based on comparing two numbers. The first is seen as a quantum counterpart to the Reynolds number, while the second represents its critical value for a flow with a single vortex. We also explore how this studied effect might contribute to the emergence of quantum turbulence. This study discusses a method for determining the critical Reynolds number in quantum turbulence, using the proposed model as a framework. Here, we use a new quantization technique for classical closed vortex filaments developed by the author earlier.

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