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- Asia Pacific Center for Theoretical PhysicsKR224 papers
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30 papers · 1 filter
Skyrmion dynamics and disintegration in a spin-1 Bose-Einstein condensate
Xiao-Qiang Xu, Jung Hoon Han
Dynamics of skyrmionic spin texture in the spin-1 Bose-Einstein condensate is examined by analytical and numerical means. We show the skyrmion (coreless vortex) to be inherently un…
Improved Semidefinite Programming Bound on Sizes of Codes
Hyun Kwang Kim, Phan Thanh Toan
Let (respectively ) be the maximum possible number of codewords in a binary code (respectively binary constant-weight code) of length and minimum Hamming…
Topological Solitons versus Non-Solitonic Phase Defects in Quasi-One-Dimensional Charge Density Wave
Tae-Hwan Kim, Han Woong Yeom
We investigated phase defects in a quasi-one-dimensional commensurate charge density wave (CDW) system, an In atomic wire array on Si(111), using low temperature scanning tunneling…
A Generalization of the Convex Kakeya Problem
Hee-Kap Ahn, Sang Won Bae, Otfried Cheong +3
Given a set of line segments in the plane, not necessarily finite, what is a convex region of smallest area that contains a translate of each input segment? This question can be se…
Directed Motion of Elongated Active Polymers
Mew-Bing Wan, YongSeok Jho
Previous work shows that a net directed motion arises from a system of individual particles undergoing run-and-tumble dynamics in the presence of an array of asymmetric barriers. H…
How a single stretched polymer responds coherently to a minute oscillation in fluctuating environments: An entropic stochastic resonance
Won Kyu Kim, Wokyung Sung
Within the cell, biopolymers are often situated in constrained, fluid environments, e.g., cytoskeletal networks, stretched DNAs in chromatin. It is of paramount importance to under…