21 citations · 21 across the 1 of their papers we have counts for
3 papers
quant-ph2013★ 21 cited
Generalized Entropy and Global Quantum Discord in Multi-party Quantum systems
Dong Pyo Chi, Jeong San Kim, Kyungjin Lee
Using Tsallis-q entropy, we introduce the generalized concept of global quantum discord, namely the q-global quantum discord, and provide its analytic evaluation for two classes of…
quant-ph2009
Concurrence of assistance and Mermin inequality on three-qubit pure states
Dong Pyo Chi, Kabgyun Jeong, Taewan Kim +2
We study a relation between the concurrence of assistance and the Mermin inequality on three-qubit pure states. We find that if a given three-qubit pure state has the minimal concu…
quant-ph2009
Multipartite bound entanglement and multi-setting Bell inequalities
Dong Pyo Chi, Kabgyun Jeong, Taewan Kim +2
Dür [Phys. Rev. Lett. {\bf 87}, 230402 (2001)] constructed -qubit bound entangled states which violate a Bell inequality for , and his result was recently improved by sh…