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quant-ph2024
Entanglement in bipartite X-states: Analytical results for the volume of states with positive partial transpose
Yaqing Xy Wang, József Zsolt Bernád
We provide an analytical formula for the volume ratio between bipartite X-states with positive partial transpose and all bipartite X-states. The result applies to arbitrary $m \tim…
math.AP2024
Global Well-posedness for the Fourth-order Nonlinear Schrodinger Equation
Mingjuan Chen, Yufeng Lu, Yaqing Wang
The local and global well-posedness for the one dimensional fourth-order nonlinear Schrödinger equation are established in the modulation space for an…