3 papers
quant-ph2026
No-cloning with unitary scaling
Dafa Li
It is known that the classical information like strings of bits can be copied. In 1982, Wootters and Zurek proposed the quantum no-cloning principle. No-cloning principle says that…
quant-ph2026
The necessary and sufficient condition for perfect teleportation and superdense coding and all the suitable states for teleportation and superdense coding
Dafa Li
It is known that two local unitaries (LU) equivalent states possess the same amount of entanglement and can be used to perform the same tasks in quantum information theory (QIT). F…
quant-ph2026
The average determinant of the reduced density matrices for each qubit as a global entanglement measure
Dafa Li
In this paper, we propose the average determinant of reduced density matrices for each qubit as a global entanglement measure. By means of the properties of reduced density matrice…