321 citations · 377 across the 21 of their papers we have counts for
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Concurrence of arbitrary dimensional bipartite quantum states
Kai Chen, Sergio Albeverio, Shao-Ming Fei
We derive an analytical lower bound for the concurrence of a bipartite quantum state in arbitrary dimension. A functional relation is established relating concurrence, the Peres-Ho…
Quantum Teleportation: from Pure to Mixed States and Standard to Optimal
S. Albeverio, S. M. Fei, W. L. Yang
Teleportation for pure states, mixed states with standard and optimal protocols are introduced and investigated systematically. An explicit equation governing the teleportation of…
Integrable Lattice Systems and Markov Processes
Sergio Albeverio, Shao-Ming Fei
Lattice systems with certain Lie algebraic or quantum Lie algebraic symmetries are constructed. These symmetric models give rise to series of integrable systems. As examples the $A…
Point Interactions: PT-Hermiticity and Reality of the Spectrum
S. Albeverio, S. M. Fei, P. Kurasov
General point interactions for the second derivative operator in one dimension are studied. In particular, -self-adjoint point interactions with the suppor…
On Integrability of Many-Body Problems with Point Interactions
S. Albeverio, S. M. Fei, P. Kurasov
A study of the integrability of one-dimensional quantum mechanical many-body systems with general point interactions and boundary conditions describing the interactions which can b…