68 citations · 304 across the 20 of their papers we have counts for
20 papers
Evaluation Strategy of Time-series Anomaly Detection with Decay Function
Yongwan Gim, Kyushik Min
Recent algorithms of time-series anomaly detection have been evaluated by applying a Point Adjustment (PA) protocol. However, the PA protocol has a problem of overestimating the pe…
Charged Particle and Strong Cosmic Censorship in Reissner-Nordström-de Sitter Black Holes
Yongwan Gim, Bogeun Gwak
We investigate the instability of the unstable circular orbit of a charged null particle to test the strong cosmic censorship conjecture in Nariai-type near-extremal Reissner--Nord…
The role of the cosmological constant as a pressure in the (2+1)-dimensional black string
Yongwan Gim, Wontae Kim
It has been claimed that the cosmological constant in AdS black holes such as the BTZ black hole plays the role of the thermodynamic variable of a pressure in the thermodynamic fir…
A Survey on Nonconvex Regularization Based Sparse and Low-Rank Recovery in Signal Processing, Statistics, and Machine Learning
Fei Wen, Lei Chu, Peilin Liu +1
In the past decade, sparse and low-rank recovery have drawn much attention in many areas such as signal/image processing, statistics, bioinformatics and machine learning. To achiev…
Unruh temperatures in circular and drifted Rindler motions
Yongwan Gim, Hwajin Um, Wontae Kim
We study the temperatures for the circular and drifted Rindler motions by employing the Unruh-DeWitt detector method. In the circular motion, the temperature is increasing along th…
Unruh effect of nonlocal field theories with a minimal length
Yongwan Gim, Hwajin Um, Wontae Kim
The nonlocal field theory commonly requires a minimal length, and so it appears to formulate the nonlocal theory in terms of the doubly special relativity which makes the speed of…
Black hole complementarity with the generalized uncertainty principle in gravity's rainbow
Yongwan Gim, Hwajin Um, Wontae Kim
When gravitation is combined with quantum theory, the Heisenberg uncertainty principle could be extended to the generalized uncertainty principle accompanying a minimal length. To…
Validity of black hole complementarity in the BTZ black hole
Yongwan Gim, Wontae Kim
Based on the gedanken experiment for black hole complementarity in the Schwarzschild black hole, we calculate the energy required to duplicate information in the BTZ black hole und…
On the thermodynamic origin of the initial radiation energy density in warm inflation
Yongwan Gim, Wontae Kim
In warm inflation scenarios, radiation always exists, so that the radiation energy density is also assumed to be finite when inflation starts. To find out the origin of the non-van…
Effective Tolman temperature induced by trace anomaly
Myungseok Eune, Yongwan Gim, Wontae Kim
Despite the finiteness of stress tensor for a scalar field on the four-dimensional Schwarzschild black hole in the Israel-Hartle-Hawking vacuum, the Tolman temperature in thermal e…
Hawking, Fiducial, and Free-fall Temperatures of Black Hole on Gravity's Rainbow
Yongwan Gim, Wontae Kim
On gravity's rainbow, the energy of particles affects the geometry of black hole in such a way that the Hawking temperature of black hole is appropriately modified. It means that t…
A Quantal Tolman Temperature
Yongwan Gim, Wontae Kim
The conventional Tolman temperature based on the assumption of the traceless condition of energy-momentum tensor for matter fields is infinite at the horizon if Hawking radiation i…
Black Hole Complementarity in Gravity's Rainbow
Yongwan Gim, Wontae Kim
To see how the gravity's rainbow works for black hole complementary, we evaluate the required energy for duplication of information in the context of black hole complementarity by…
Thermodynamic phase transition based on the non-singular temperature
Myungseok Eune, Yongwan Gim, Wontae Kim
The Hawking temperature for the Schwarzschild black hole is divergent when the mass of the black hole vanishes; however the corresponding geometry becomes the Minkowski spacetime w…
Semiclassical approach for the evaporating black hole revisited
Yongwan Gim, Wontae Kim
A recent calculation shows that the observed energy density in the Unruh state at the future event horizon as seen by a freely falling observer is finite if the observer is release…
Thermodynamic phase transition in the rainbow Schwarzschild black hole
Yongwan Gim, Wontae Kim
We study the thermodynamic phase transition in the rainbow Schwarzschild black hole where the metric depends on the energy of the test particle. Identifying the black hole temperat…
The first law of thermodynamics in Lifshitz black holes revisited
Yongwan Gim, Wontae Kim, Sang-Heon Yi
We obtain the mass expression of the three- and five-dimensional Lifshitz black holes by em- ploying the recently proposed quasilocal formulation of conserved charges, which is bas…
Something special at the event horizon
Myungseok Eune, Yongwan Gim, Wontae Kim
We calculate the free-fall energy density of scalar fields semi-classically by employing the trace anomaly on a two-dimensional Schwarzschild black hole with respect to various bla…
Note on explicit form of entanglement entropy in the RST model
Myungseok Eune, Yongwan Gim, Wontae Kim
For an evaporating black hole which is a radiation-black hole combined system, we express the entanglement entropy and the Page time in terms of the conformal time in the RST model…
Superradiance and statistical entropy of hairy black hole in three dimensions
Myungseok Eune, Yongwan Gim, Wontae Kim
We calculate the statistical entropy of a rotating hairy black hole by taking into account superradiant modes in the brick wall method. The UV cutoff is independent of the gravitat…