papers

Publications (24)

hep-th2015

Generalized complex marginal deformation of pp-waves and giant gravitons

Sunyoung Shin

We present the Penrose limits of a complex marginal deformation of , which incorporates the symmetry of type IIB theory, along the geo…

hep-th2014

deformations and -deformed geometries

Sunyoung Shin

We discuss -deformed geometries on two types of 's where the direction along the third coordinate is not orthogonal to the direction along the second coordinate or the dir…

hep-th2010

Hamiltonian analysis of Linearized Extension of Hořava-Lifshitz gravity

Seoktae Koh, Sunyoung Shin

We investigate the Hamiltonian structure of linearized extended Hořava- Lifshitz gravity in a flat cosmological background following the Faddeev-Jackiw's Hamiltonian reduction for…

cond-mat.mes-hall2011

The stability of graphene band structures against an external periodic perturbation; Na on Graphene

Choongyu Hwang, Sunyoung Shin, Seon-Myeong Choi +7

We report that the band of graphene sensitively changes as a function of an external potential induced by Na especially when the potential becomes periodic at low temperature.…

hep-th2009

Quantum SUSY Algebra of -lumps in the Massive Grassmannian Sigma Model

Hiroaki Nakajima, Phillial Oh, Sunyoung Shin

We compute the SUSY algebra of the massive Grassmannian sigma model in 2+1 dimensions. We first rederive the action of the model by using the Scherk-Schwarz dimensi…

hep-th2018

Vacua and walls of mass-deformed Kähler nonlinear sigma models on

Masato Arai, Anastasia Golubtsova, Chanyong Park +1

We study vacua and walls of mass-deformed Kähler nonlinear sigma models on . We identify elementary walls with the simple roots of and discuss compressed wal…

hep-th2020

Junctions of mass-deformed nonlinear sigma models on and II

Taegyu Kim, Sunyoung Shin

We study vacua, walls and three-pronged junctions of mass-deformed nonlinear sigma models on and for generic . We review and discuss the on-shell comp…

cs.CL2026

Are Video Models Zero-Shot Learners and Reasoners in Education? EduVideoBench, A Knowledge-Skills-Attitude Benchmark for Educational Video Generation

Unggi Lee, Hoyoung Ahn, Yoon Choi +16

Video generation models (VGMs) are rapidly entering classrooms, yet existing benchmarks evaluate only perceptual quality, intrinsic faithfulness, generic safety, or video as a reas…

hep-th2009

Walls in supersymmetric massive nonlinear sigma model on complex quadric surface

Masato Arai, Sunggeun Lee, Sunyoung Shin

The Bogomol'nyi-Prasad-Sommerfield (BPS) multiwall solutions are constructed in a massive Kahler nonlinear sigma model on the complex quadric surface, Q^N=SO(N+2)/[SO(N)\times SO(2…

cond-mat.mes-hall2010

Possible evidence of non-Fermi liquid behavior from quasi-one-dimensional indium nanowires

Choongyu Hwang, Namdong Kim, Sunyoung Shin +1

We report possible evidence of non-Fermi liquid (NFL) observed at room temperature from the quasi one-dimensional (1D) indium (In) nanowires self-assembled on Si(111)-77 su…

hep-th2022

Junctions of mass-deformed nonlinear sigma models on and I

Taegyu Kim, Sunyoung Shin

We construct on-shell nonlinear sigma models on and by holomorphically embedding the models in the hyper-Kähler nonlinear sigma model…

hep-th2014

Soft Wall Model in the Hadronic Medium

Chanyong Park, Do-Young Gwak, Bum-Hoon Lee +2

We study the holographic QCD in the hadronic medium by using the soft wall model. We discuss the Hawking-Page transition between Reissner-Nordström AdS black hole and thermal char…

hep-th2011

Holographic Meson Spectra in the Dense Medium with Chiral Condensate

Chanyong Park, Bum-Hoon Lee, Sunyoung Shin

We study two effects on the meson spectra by using the AdS/CFT correspondence where the corrections from the chiral condensate and the quark density are controlled…

hep-th2019

Vacua, walls and junctions in

Sunyoung Shin

We discuss vacua, walls and three-pronged junctions of the mass-deformed nonlinear sigma models on the Grassmann manifold $G_{N_F,N_C}=\frac{SU(N_F)}{SU(N_C)\times SU(N_F-N_C)\time…

hep-th2011

Walls of massive Kähler sigma models on SO(2N)/U(N) and Sp(N)/U(N)

Masato Arai, Sunyoung Shin

We study the Bogomol'nyi-Prasad-Sommerfield wall solutions in massive Kähler nonlinear sigma models on SO(2N)/U(N) and Sp(N)/U(N) in three-dimensional spacetime. We show that SO(2…

hep-th2010

Holographic 1/Nc correction from the chiral condensate

Bum-Hoon Lee, Chanyong Park, Sunyoung Shin

We investigate a gravity solution containing the gravitational backreaction of the massive scalar field dual to the chiral condensate, which corresponds to correction. In g…

cs.CL2026

Soohak: A Mathematician-Curated Benchmark for Evaluating Research-level Math Capabilities of LLMs

Guijin Son, Seungone Kim, Catherine Arnett +73

Following the recent achievement of gold-medal performance on the IMO by frontier LLMs, the community is searching for the next meaningful and challenging target for measuring LLM…

cs.CL2026

Pedagogical Alignment for Vision-Language-Action Models: A Comprehensive Framework for Data, Architecture, and Evaluation in Education

Unggi Lee, Jahyun Jeong, Sunyoung Shin +12

Science demonstrations are important for effective STEM education, yet teachers face challenges in conducting them safely and consistently across multiple occasions, where robotics…

hep-th2017

On Gauge Invariant Cosmological Perturbations in UV-modified Horava Gravity

Sunyoung Shin, Mu-In Park

We consider gauge invariant cosmological perturbations in UV-modified, z=3 Horava gravity with one scalar matter field, which has been proposed as a renormalizable gravity theory w…

hep-th2009

Oblique DLCQ M-theory and Multiple M2-branes

Jin-Ho Cho, Sunyoung Shin

We propose an oblique DLCQ as a limit to realize a theory of multiple M2-branes in M(atrix)-theory context. The limit is a combination of an infinite boosting of a space-like circl…

hep-th2019

Junctions of mass-deformed nonlinear sigma models on the Grassmann manifold

Sunyoung Shin

We study vacua and walls of the mass-deformed nonlinear sigma model on the Grassmann manifold and discuss three-p…

hep-th2017

Vacua and walls of mass-deformed Kähler nonlinear sigma models on

Bum-Hoon Lee, Chanyong Park, Sunyoung Shin

We construct walls of mass-deformed Kähler nonlinear sigma models on , by using the moduli matrix formalism and the simple roots of . Penetrable walls are obs…

cond-mat.mes-hall2011

Self-trapping nature of Tl nanoclusters on Si(111)-77 surface

Choongyu Hwang, Namdong Kim, Geunsik Lee +3

We have investigated electronic and structural properties of thallium (Tl) nanoclusters formed on the Si(111)-77 surface at room temperature (RT) by utilizing photoemission…

hep-th2014

-deformation on a slanted torus and deformed pp-wave

Ariunzul Dagvadorj, Sunyoung Shin

We discuss the -deformation of which incorporates the symmetry of the type IIB theory. The axion-dilaton is identified with a two-torus fro…