Turbulent magnetic reconnection generated by intense lasers

Ping, Yongli; Zhong, Junqing; Wang, Xiaogang; Han, Bo; Sun, W.; Zhang, Y.; Yuan, Dawei; Xing, C.; Wang, Jianzhao; Liu, Zhengdong; Zhang, Zhe; Qiao, B.; Zhang, H.; Li, Y. T.; Zhu, Jianqiang; Zhao, Gang; Zhang, Jie

doi:10.1038/s41567-022-01855-x

Cited by 17 publications

(13 citation statements)

References 63 publications

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“…The fine structures/processes in the reconnection CS could be closely related to various small-scale flare structures. Bright plasma blobs are often observed to appear in the long-stretched flare CS (Asai et al 2004;Nishizuka et al 2009;Takasao et al 2016), indicating the appearance of TMI-induced plasmoids as confirmed by 2D numerical models (Bárta et al 2011;Shen et al 2011) and laser experiments (Ping et al 2023). Different from 2D results, the CS in 3D simulations is suggested to be highly fragmented (Nishida et al 2013;Edmondson & Lynch 2017), which could be promising for explaining superhot turbulent plasma within the CS (Warren et al 2018), supra-arcade downflows (SADs), and finger-like supra-arcade fans (SAFs) above the flare loop top (McKenzie & Hudson 1999;Savage et al 2012;McKenzie 2013).…”

Section: Introductionmentioning

confidence: 58%

Three-dimensional Turbulent Reconnection within the Solar Flare Current Sheet

Wang,

Cheng,

Ding

et al. 2023

ApJL

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Solar flares can release coronal magnetic energy explosively and may impact the safety of near-Earth space environments. Their structures and properties on the macroscale have been interpreted successfully by the generally accepted 2D standard model, invoking magnetic reconnection theory as the key energy conversion mechanism. Nevertheless, some momentous dynamical features as discovered by recent high-resolution observations remain elusive. Here, we report a self-consistent high-resolution 3D magnetohydrodynamical simulation of turbulent magnetic reconnection within a flare current sheet. It is found that fragmented current patches of different scales are spontaneously generated with a well-developed turbulence spectrum at the current sheet, as well as at the flare loop-top region. The close coupling of tearing mode and Kelvin–Helmholtz instabilities plays a critical role in developing turbulent reconnection and in forming dynamical structures with synthetic observables in good agreement with realistic observations. The sophisticated modeling makes a paradigm shift from the traditional to a 3D turbulent reconnection model unifying flare dynamical structures of different scales.

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Section: Introductionmentioning

confidence: 58%

Three-dimensional Turbulent Reconnection within the Solar Flare Current Sheet

Wang,

Cheng,

Ding

et al. 2023

ApJL

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“…Spontaneous light-imaging (SLI) [14]- [16], spectroscopic measurements [17], and hot electron measurements [18] are typical examples of passive methods. From early experiments up to the present times, these diagnostic methods have been extensively applied to the study of LDMR [5]- [11]. Compared with the active diagnostic types, the passive types are usually easier to implement and more stable; thus, they have irreplaceable value.…”

Section: Jinst 18 P04020mentioning

confidence: 99%

“…MR is one of the important elements of laboratory astrophysical research. At present, people have been able to construct some typical laserdriven magnetic reconnection (LDMR) environments in the laboratory followed by the execution of the corresponding research work [4]- [11] based on technologies, such as high-power lasers.…”

Section: Introductionmentioning

confidence: 99%

Narrow-bandwidth, extreme ultraviolet, spontaneous light-imaging technique for laser-driven magnetic reconnection studies

Xiong

Fang

et al. 2023

J. Inst.

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Laser-driven magnetic reconnection (LDMR) is an important research topic in the field of high-energy-density physics, such as laboratory astrophysics. In this study, the narrow bandwidth spontaneous light imaging (SLI) technique at the extreme ultraviolet (EUV) band is introduced to detect magnetic reconnection and the jets produced by LDMR. The EUV-based SLI technique will provide reference values for the verification of the results obtained with traditional methods.

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“…Asymmetric magnetic reconnection that occurs at the Earth's magnetopause is recreated by two lasers incident on a foil with a time delay based on laboratory experiments and PIC simulations (Rosenberg et al., 2015), or with an intensity difference between them in PIC simulations (Y. Ping et al., 2019). Moreover, by applying four lasers on two aluminum targets, turbulent magnetic reconnection in fragmented current sheets is created through laboratory experiments and PIC simulations (Y. Ping et al., 2023).…”

Section: Introductionmentioning

confidence: 99%

Three‐Dimensional Particle‐In‐Cell Simulations of Electron‐Only Magnetic Reconnection Between Laser‐Produced Plasma Bubbles

Huang,

Hu,

Ping

et al. 2023

Geophysical Research Letters

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Electron‐only magnetic reconnection, a novel type of reconnection where only electron dynamics is involved, has recently been observed in turbulent plasmas in the Earth's magnetosphere. In this letter, using particle‐in‐cell simulations, we demonstrate that electron‐only reconnection can be created via laser‐plasma interactions. The reconnection current sheet is carried by electrons, and its width is at the electron inertial scale. Moreover, only electron outflow is observed, while the ion outflow is negligible. The duration of the reconnection is found to be within the electron scale, thus there is no sufficient time for ions to respond. The energy conversion during electron‐only reconnection mainly occurs in the vicinity of the X‐line, and is dominated along the perpendicular direction. By analyzing the Poynting flux patterns, we find that the reconnection electric field dominates the whole energy conversion. This study advances our knowledge of the energy dissipation mechanism in the electron‐only reconnection regime.

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Turbulent magnetic reconnection generated by intense lasers

Cited by 17 publications

References 63 publications

Three-dimensional Turbulent Reconnection within the Solar Flare Current Sheet

Three-dimensional Turbulent Reconnection within the Solar Flare Current Sheet

Narrow-bandwidth, extreme ultraviolet, spontaneous light-imaging technique for laser-driven magnetic reconnection studies

Three‐Dimensional Particle‐In‐Cell Simulations of Electron‐Only Magnetic Reconnection Between Laser‐Produced Plasma Bubbles

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