Sangwha Yi

ORCID: 0000-0002-1760-0227
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About
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Research Areas
  • Relativity and Gravitational Theory
  • Experimental and Theoretical Physics Studies
  • Cosmology and Gravitation Theories
  • Geophysics and Gravity Measurements
  • Computational Physics and Python Applications
  • Quantum and Classical Electrodynamics
  • Geophysics and Sensor Technology
  • Black Holes and Theoretical Physics
  • Advanced Differential Geometry Research
  • Solar and Space Plasma Dynamics
  • Quantum Electrodynamics and Casimir Effect
  • Algebraic and Geometric Analysis
  • Advanced Mathematical Theories and Applications
  • Pulsars and Gravitational Waves Research
  • Noncommutative and Quantum Gravity Theories
  • Geomagnetism and Paleomagnetism Studies
  • Quantum Mechanics and Applications
  • Reservoir Engineering and Simulation Methods
  • Fluid Dynamics and Turbulent Flows
  • Advanced Mathematical Theories
  • Advanced Thermodynamics and Statistical Mechanics
  • Quantum Mechanics and Non-Hermitian Physics
  • Planetary Science and Exploration
  • Inertial Sensor and Navigation
  • Mathematics and Applications

Daejeon University
2023

Sungkyunkwan University
2012

The RENO experiment has observed the disappearance of reactor electron antineutrinos, consistent with neutrino oscillations, a significance 4.9 standard deviations. Antineutrinos from six 2.8 GW(th) reactors at Yonggwang Nuclear Power Plant in Korea, are detected by two identical detectors located 294 and 1383 m, respectively, array center. In 229 d data-taking period between 11 August 2011 26 March 2012, far (near) detector 17102 (154088) antineutrino candidate events background fraction...

10.1103/physrevlett.108.191802 article EN Physical Review Letters 2012-05-11

In cosmological special relativity theory, we study Maxwell equations, electromagnetic wave equations and functions. the theory of relativity, energy-momentum relations, Klein-Gordon equation If solve equation, obtain Yukawa potential in inertial frame. We derive Schrodinger from free particle’s function relativity. uncertainty principle quantum mechanics theory. The Dirac is a one order equation. used as probability amplitude mechanics. function, Type A satisfies found complex scalar fields...

10.31237/osf.io/vkgcd preprint EN 2025-01-23

In cosmological special relativity theory, we study Maxwell equations, electromagnetic wave equations and functions. the theory of relativity, energy?momentum relations, Klein-Gordon equation If solve Klein?Gordon equation, obtain Yukawa potential in inertial frame. We derive Schrodinger from free particle’s function relativity. uncertainty principle quantum mechanics theory. The Dirac is a one order equation. used as probability amplitude mechanics. function, Type A satisfies found complex...

10.31237/osf.io/xevf4_v2 preprint EN 2025-01-29

In cosmological special relativity theory, we study Maxwell equations, electromagnetic wave equations and functions. the theory of relativity, energy-momentum relations, Klein-Gordon equation If solve equation, obtain Yukawa potential in inertial frame. We derive Schrodinger from free particle’s function relativity. uncertainty principle quantum mechanics theory. The Dirac is a one order equation. used as probability amplitude mechanics. function, Type A satisfies found complex scalar fields...

10.31219/osf.io/7vdkt_v1 preprint EN 2025-04-02

In the general relativity theory, using Einstein’s gravity field equation, we discover spherical solution of classical quantum gravity. The careful point is that this theory different from other theory. This made by equation.

10.2139/ssrn.3508075 article EN SSRN Electronic Journal 2019-01-01

In the Cosmological Special Relativity Theory, we study Maxwell equations, electromagnetic wave equation and function.

10.31237/osf.io/tfj4y preprint EN 2021-12-28

In this paper, we derived electromagnetic field transformations and equations of Maxwell in Rindler space-time the context general theory relativity. We then treat Lorentz gauge transformation fixing condition obtained differential operation, 4-vector potential field. addition, charge density electric current spacetime are derived. To view invariance transformation, is applied to space-time. Appendix A, show that wave function cannot exist An important point assert article uniqueness...

10.2139/ssrn.3508045 article EN SSRN Electronic Journal 2016-01-01

Solutions of unified theory equations gravity and electromagnetism satisfy Einstein-Maxwellequation. Hence, solutions the is Reissner-Nodstrom solution in vacuum. We found revisedEinstein tensor equation, condition satisfied by 2-order contravariant metric two timesproduct.

10.31237/osf.io/xqz7p preprint EN 2021-12-28

Solutions of unified theory equations gravity and electromagnetism satisfy Einstein-Maxwell equation. Hence, solutions the is Reissner-Nodstrom solution in vacuum. We found revised Einstein tensor equation, condition satisfied by 2-order contravariant metric two times product.

10.2139/ssrn.3508080 article EN SSRN Electronic Journal 2019-01-01

10.5281/zenodo.4285830 article EN cc-by Zenodo (CERN European Organization for Nuclear Research) 2020-11-23

In the general relativity theory, we find electro-magnetic wave function and equation in Rindler space-time. Specially, this article is that electromagnetic corrected by gauge fixing We define force space-time Lorentz (electromagnetic force) field transformations inertial frame, defined as 4-dimensional force. Hence, had to obtain energy-momentum

10.2139/ssrn.3508049 article EN SSRN Electronic Journal 2018-01-01

We study Yukawa potential dependent about time in cosmological inertial frame. If we solve Klein-Gordon equation, obtain

10.31237/osf.io/ep59h preprint EN 2021-12-28

In the general relativity theory, we find representation of gravity field equation and solutions. We treat Schwarzschild solution, Reissner-Nodstrom Kerr-Newman Robertson -Walker solution. found new theory (we call it Data General Relativity Theory; DGRT). data Hawking radiation by theory. This has to apply black hole (specially, Primordial Massive Black Hole; PMBH) because hole(PMBH) is an idealistic structure.

10.2139/ssrn.3508048 article EN SSRN Electronic Journal 2018-01-01

10.5281/zenodo.3568080 article EN cc-by Zenodo (CERN European Organization for Nuclear Research) 2019-12-09

In the Cosmological Special Theory of Relativity, we quantized Klein-Gordon scalar field. We treatLagrangian density and Hamiltonian in field SpecialTheory Relativity

10.31237/osf.io/rwfyb preprint EN 2021-12-28

Dirac equation is a one order-wave equation. Wave function uses as probability amplitude in quantum mechanics. We make Equation from wave function, Type A cosmological inertial frame.The satisfy Klein-Gordon frame.

10.31237/osf.io/5v7yq preprint EN 2021-12-28

In expanded universe, we found gravity field equation and solution. We Schwarzschildsoluti on, Kerr-Newman solution in universe. Hence, new general relativity theory-Cosmological General Theory of Relativity(CGTR).

10.31237/osf.io/kj82f preprint EN 2021-12-28

10.5281/zenodo.3556197 article EN cc-by Zenodo (CERN European Organization for Nuclear Research) 2019-07-28

10.5281/zenodo.3556183 article EN cc-by Zenodo (CERN European Organization for Nuclear Research) 2019-05-28

In special relativity theory, we discovered 4-dimensional transformation of general Rindler spacetime from Lorentz in inertial frames.We try to discover inversetransformation space-time.

10.2139/ssrn.3618858 article EN SSRN Electronic Journal 2020-01-01

Solutions of unified theory equations gravity and electromagnetism satisfy Einstein-Maxwell equation. Hence, solutions the is Reissner-Nordstrom solution in vacuum. We found revised Einstein tensor equation, condition satisfied by 2-order contravariant metric two times product Gauss symbol.

10.2139/ssrn.3666408 article EN SSRN Electronic Journal 2020-01-01

Klein-Gordon equation is a relativistic wave equation. It treats spinless particle. The functioncannot use as probability amplitude. We made in Rindler space-time. In this paper,we make free particle’s function the solution of

10.31237/osf.io/79s32 preprint EN 2021-12-28

In expanded universe, we found gravity field equation and solution. We Schwarzschild solution, Kerr-Newman solution in universe. Hence, new general relativity theory-Cosmological General Theory of Relativity(CGTR).

10.2139/ssrn.3790585 article EN SSRN Electronic Journal 2021-01-01
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