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13 papers · 1 filter
Three-party d-level quantum secret sharing protocol
Dong Pyo Chi, Jeong Woon Choi, Jeong San Kim +2
We develop a three-party quantum secret sharing protocol based on arbitrary dimensional quantum states. In contrast to the previous quantum secret sharing protocols, the sender can…
Dynamics of false vacuum bubbles with nonminimal coupling
Bum-Hoon Lee, Chul H. Lee, Wonwoo Lee +2
We study the dynamics of false vacuum bubbles. A nonminimally coupled scalar field gives rise to the effect of negative tension. The mass of a false vacuum bubble from outside obse…
Microlensing Detections of Planets in Binary Stellar Systems
Dong-Wook Lee, Chung-Uk Lee, Byeong-Gon Park +4
We demonstrate that microlensing can be used for detecting planets in binary stellar systems. This is possible because in the geometry of planetary binary systems where the planet…
Log canonical thresholds of certain Fano hypersurfaces
Ivan Cheltsov, Jihun Park, Joonyeong Won
We study log canonical thresholds on quartic threefolds, quintic fourfolds, and double spaces. As an application, we show that they have a Kaehler-Einstein metric if they are gener…
Stringy Jacobi fields in Morse theory
Yong Seung Cho, Soon-Tae Hong
We consider the variation of the surface spanned by closed strings in a spacetime manifold. Using the Nambu-Goto string action, we induce the geodesic surface equation, the geodesi…
Criteria in the Selection of Target Events for Planetary Microlensing Follow-Up Observation
Cheongho Han
To provide criteria in the selection of target events preferable for planetary lensing follow-up observations, we investigate the variation of the probability of detecting planetar…