2 papers
quant-ph2023
-positivity and Schmidt number under orthogonal group symmetries
Sang-Jun Park, Sang-Gyun Youn
In this paper, we study -positivity and Schmidt number under standard orthogonal group symmetries. The Schmidt number is a natural quantification of entanglement in quantum info…
math-ph2023
A universal framework for entanglement detection under group symmetry
Sang-Jun Park, Yeong-Gwang Jung, Jeongeun Park +1
One of the most fundamental questions in quantum information theory is PPT-entanglement of quantum states, which is an NP-hard problem in general. In this paper, however, we prove…