67 citations · 77 across the 4 of their papers we have counts for
4 papers
An Ideal Channel of Long Distance Entanglement in Spin Systems
Xiao-Qiang Xi, T. Zhang, R. H. Yue +2
We propose a scheme for using spin chain to realize an ideal channel of long distance entanglement. The results show that there has different entanglement in different Hilbert subs…
Designing a Spin Channel for Perfect Quantum Communication
Xiao-Qiang Xi, T. Zhang, R. H. Yue +2
We propose a scheme for using a spin chain with fixed symmetry interaction as a channel for perfect quantum communication. The perfect quantum communication is determined by the ei…
Orbits of quantum states and geometry of Bloch vectors for -level systems
S. G. Schirmer, T. Zhang, J. V. Leahy
Physical constraints such as positivity endow the set of quantum states with a rich geometry if the system dimension is greater than two. To shed some light on the complicated stru…
The spectral geometry of the Riemann curvature tensor
P. Gilkey, R. Ivanova, T. Zhang
Let E be a natural operator associated to the curvature tensor of a pseudo-Riemannian manifold. This survey article studies when the spectrum, or more generally the real Jordan nor…