Emergent Berezinskii-Kosterlitz-Thouless deconfinement in super-Coulombic plasmas
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arXiv
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| Format: | Preprint |
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2025
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| _version_ | 1866912790476750848 |
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| author | De, Ayush Radzihovsky, Leo Gazit, Snir |
| author_facet | De, Ayush Radzihovsky, Leo Gazit, Snir |
| contents | We study the statistical mechanics of two-dimensional "super-Coulombic" plasmas, namely, neutral plasmas with power-law interactions longer-ranged than Coulomb. To that end, we employ numerically exact large-scale Monte Carlo simulations. Contrary to naive energy-entropy arguments, we observe a charge confinement-deconfinement transition as a function of temperature. Remarkably, the transition lies in the Berezinskii-Kosterlitz-Thouless (BKT) universality class. Our results corroborate recent dielectric medium and renormalization group calculations predicting effective long-scale Coulomb interactions in microscopically super-Coulombic gases. We explicitly showcase this novel dielectric screening phenomenon, capturing the emergent Coulomb potential and the associated crossover length scale. This is achieved by utilizing a new test charge based methodology for determining effective inter-particle interactions. Lastly, we show that this Coulomb emergence and the associated BKT transition occur universally across generic interactions and densities. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2506_05461 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Emergent Berezinskii-Kosterlitz-Thouless deconfinement in super-Coulombic plasmas De, Ayush Radzihovsky, Leo Gazit, Snir Statistical Mechanics Quantum Gases Strongly Correlated Electrons Atomic Physics We study the statistical mechanics of two-dimensional "super-Coulombic" plasmas, namely, neutral plasmas with power-law interactions longer-ranged than Coulomb. To that end, we employ numerically exact large-scale Monte Carlo simulations. Contrary to naive energy-entropy arguments, we observe a charge confinement-deconfinement transition as a function of temperature. Remarkably, the transition lies in the Berezinskii-Kosterlitz-Thouless (BKT) universality class. Our results corroborate recent dielectric medium and renormalization group calculations predicting effective long-scale Coulomb interactions in microscopically super-Coulombic gases. We explicitly showcase this novel dielectric screening phenomenon, capturing the emergent Coulomb potential and the associated crossover length scale. This is achieved by utilizing a new test charge based methodology for determining effective inter-particle interactions. Lastly, we show that this Coulomb emergence and the associated BKT transition occur universally across generic interactions and densities. |
| title | Emergent Berezinskii-Kosterlitz-Thouless deconfinement in super-Coulombic plasmas |
| topic | Statistical Mechanics Quantum Gases Strongly Correlated Electrons Atomic Physics |
| url | https://arxiv.org/abs/2506.05461 |