Quantitative analysis of anomalous electron heating and momentum transfer by lower hybrid drift waves during guide field reconnection

The electrostatic lower hybrid drift wave (ES-LHDW) has been observed in the electron diffusion region of the Magnetic Reconnection Experiment (MRX). The ES-LHDW is capable of generating both electric field and density fluctuations, which are measured by an electrostatic probe [1]. We confirm that the observed ES-LHDW is in the quasilinear stage by verifying the linear relationship between the reconnection electric field fluctuations and the density fluctuations [2]. This justifies the use of quasilinear analysis of all anomalous (second order) terms such as anomalous resistivity and anomalous heating based on the measured amplitude. In a typical example with a moderate guide field, the anomalous resistivity can account for about 25 % of the reconnection electric field. Anomalous electron heating is about four times higher than the classical Ohmic heating. These results indicate that the ES-LHDW can affect both electron and reconnection dynamics. We discuss the physics of each anomalous term by looking at the linear relationship between physical quantities.