Formation of a new rural power structure and the failure of gender in utopia: : lesbian image and its metaphors in Wildcat Lake

Chen Yingsong created Wildcat Lake not just for telling a story about lesbians. By describing how Xiang’er, a rural woman, becomes a lesbian in the villages, we can see the “richness” and “metaphorical meaning” of the lesbian symbol. As far as Wildcat Lake is concerned, it is more worthy of discussing how Xiang’er becomes a lesbian, which is not only about sex or gender, but also about political and economic oppression; therefore, the so-called gender in Utopia will inevitably fail. Furthermore, the loss of rural subjectivity during modernization and transformation, the subsequent new power structure, and the resulting oppression and exploitation are the fundamental reasons for Xiang’er to become a lesbian and eventually “kill her husband”.  Chen Yingsong created Wildcat Lake not just for telling a story about lesbians but also bydescribing how Xiang’er, a rural woman, becomes a lesbian in the villages. We can see the “richness”and “metaphorical meaning” of the lesbian symbol. As far as Wildcat Lake is concerned, it is moreworthy of discussing how Xiang’er becomes a lesbian, which is not only about sex or gender, but alsoabout political and economic oppression. Therefore, the so-called gender in Utopia will inevitably fail.Furthermore, the loss of rural subjectivity during modernization and transformation, the subsequentnew power structure, and the resulting oppression and exploitation are the fundamental reasons forXiang’er to become a lesbian and eventually “kill her husband”

Magnetic Proximity Effect and Interlayer Exchange Coupling of Ferromagnetic/Topological Insulator/Ferromagnetic Trilayer

Magnetic proximity effect between topological insulator (TI) and ferromagnetic insulator (FMI) is considered to have great potential in spintronics. However, a complete determination of interfacial magnetic structure has been highly challenging. We theoretically investigate the interlayer exchange coupling of two FMIs separated by a TI thin film, and show that the particular electronic states of the TI contributing to the proximity effect can be directly identified through the coupling behavior between two FMIs, together with a tunability of coupling constant. Such FMI/TI/FMI structure not only serves as a platform to clarify the magnetic structure of FMI/TI interface, but also provides insights into designing the magnetic storage devices with ultrafast response.Comment: 7 pages, 4 figure

Tunable THz Surface Plasmon Polariton based on Topological Insulator-Layered Superconductor Hybrid Structure

We theoretically investigate the surface plasmon polariton (SPP) at the interface between 3D strong topological insulator (TI) and layered superconductor-magnetic insulator structure. The tunability of SPP through electronic doping can be enhanced when the magnetic permeability of the layered structure becomes higher. When the interface is gapped by superconductivity or perpendicular magnetism, SPP dispersion is further distorted, accompanied by a shift of group velocity and penetration depth. Such a shift of SPP reaches maximum when the magnitude of Fermi level approaches the gap value, and may lead to observable effects. The tunable SPP at the interface between layered superconductor and magnetism materials in proximity to TI surface may provide new insight in the detection of Majorana Fermions.Comment: 6 pages, 4 figure

High-Throughput GPU Implementation of Dilithium Post-Quantum Digital Signature

In this work, we present a well-optimized GPU implementation of Dilithium, one of the NIST post-quantum standard digital signature algorithms. We focus on warp-level design and exploit several strategies to improve performance, including memory pool, kernel fusing, batching, streaming, etc. All the above efforts lead to an efficient and high-throughput solution. We profile on both desktop and server-grade GPUs, and achieve up to 57.7$\times$, 93.0$\times$, and 63.1$\times$ higher throughput on RTX 3090Ti for key generation, signing, and verification, respectively, compared to single-thread CPU. Additionally, we study the performance in real-world applications to demonstrate the effectiveness and applicability of our solution

Sunspot shearing and sudden retraction motion associated with the 2013 August 17 M3.3 Flare

In this Letter, we give a detailed analysis to the M3.3 class flare that occurred on August 17, 2013 (SOL2013-08-17T18:16). It presents a clear picture of mutual magnetic interaction initially from the photosphere to the corona via the abrupt rapid shearing motion of a small sunspot before the flare, and then suddenly from the corona back to the photosphere via the sudden retraction motion of the same sunspot during the flare impulsive phase. About 10 hours before the flare, a small sunspot in the active region NOAA 11818 started to move northeast along a magnetic polarity inversion line (PIL), creating a shearing motion that changed the quasi-static state of the active region. A filament right above the PIL was activated following the movement of the sunspot and then got partially erupted. The eruption eventually led to the M3.3 flare. The sunspot was then suddenly pulled back to the opposite direction upon the flare onset. During the backward motion, the Lorentz force underwent a simultaneous impulsive change both in magnitude and direction. Its directional change is found to be conformable with the retraction motion. The observation provides direct evidence for the role of the shearing motion of the sunspot in powering and triggering the flare. It especially confirms that the abrupt motion of a sunspot during a solar flare is the result of a back reaction caused by the reconfiguration of the coronal magnetic field

String Resonances at Hadron Colliders

[Abridged] We consider extensions of the standard model based on open strings ending on D-branes. Assuming that the fundamental string mass scale M_s is in the TeV range and that the theory is weakly coupled, we discuss possible signals of string physics at the upcoming HL-LHC run (3000 fb^{-1}) with \sqrt{s} = 14 TeV, and at potential future pp colliders, HE-LHC and VLHC, operating at \sqrt{s} = 33 and 100 TeV, respectively. In such D-brane constructions, the dominant contributions to full-fledged string amplitudes for all the common QCD parton subprocesses leading to dijets and \gamma + jet are completely independent of the details of compactification, and can be evaluated in a parameter-free manner. We make use of these amplitudes evaluated near the first (n=1) and second (n=2) resonant poles to determine the discovery potential for Regge excitations of the quark, the gluon, and the color singlet living on the QCD stack. We show that for string scales as large as 7.1 TeV (6.1 TeV), lowest massive Regge excitations are open to discovery at 5\sigma in dijet (\gamma + jet) HL-LHC data. We also show that for n=1, the dijet discovery potential at HE-LHC and VLHC exceedingly improves: up to 15 TeV and 41 TeV, respectively. To compute the signal-to-noise ratio for n=2 resonances, we first carry out a complete calculation of all relevant decay widths of the second massive level string states. We demonstrate that for string scales M_s <~ 10.5 TeV (M_s <~ 28 TeV), detection of n=2 Regge recurrences at HE-LHC (VLHC) would become the smoking gun for D-brane string compactifications. Our calculations have been performed using a semi-analytic parton model approach which is cross checked against an original software package. The string event generator interfaces with HERWIG and Pythia through BlackMax. The source code is publically available in the hepforge repository.Comment: References adde