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- W4299577067 abstract "The BCS-type second-order phase transition of a classical Langmuir wave system is identified theoretically and numerically. The transition takes place between two states: Langmuir wave turbulence (LWT) and Langmuir wave supercontinuum (LWSC), the latter of which exhibits broad power spectra with significant spatiotemporal coherence when a certain number of plasmons (plasma wave quanta) are excited in the system. In the LWT-LWSC transition, the modulational instability and resulting creation of plasmon pairs are the classical counterparts of the Cooper instability and creation of Cooper pairs in superconducting states. The Bose-Einstein condensation of Cooper pairs in superconducting states is replaced by the Kuramoto oscillator-entrainment of plasmon pairs in a LWSC. The order parameter of the LWSC state, which is defined as the mean field of the plasmon pairs, takes on a significant value, which clearly indicates that a macroscopic number of plasmon pairs occupy a single momentum state with an identical phase in the LWSC. The emergence of spatiotemporal coherence and the decrease in the phase randomization are considered as development of long-range order and spontaneous symmetry breaking, respectively, indicating that the LWT-LWSC transition is a second order phase transition phenomenon. By this transition, U(1) symmetry of LWT is broken. The LWSC is, in terms of plasma physics, a so-called Bernstein-Greene-Kruskal mode characterized by its undamped nature." @default.
- W4299577067 created "2022-10-02" @default.
- W4299577067 creator A5087976970 @default.
- W4299577067 date "2017-09-26" @default.
- W4299577067 modified "2023-09-26" @default.
- W4299577067 title "BCS-type second-order phase transition of classical Langmuir wave system" @default.
- W4299577067 doi "https://doi.org/10.48550/arxiv.1709.09113" @default.
- W4299577067 hasPublicationYear "2017" @default.
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