16 research outputs found
Control and manipulation of entanglement between two coupled qubits by fast pulses
Full text linkWe have investigated the analytical and numerical dynamics of entanglement
for two qubits that interact with each other via Heisenberg XXX-type
interaction and subject to local time-specific external kick and Gaussian
pulse-type magnetic fields in x-y plane. The qubits have been assumed to be
initially prepared in different pure separable and maximally entangled states
and the effect of the strength and the direction of external fast pulses on
concurrence has been investigated. The carefully designed kick or pulse
sequences are found to enable one to obtain constant long-lasting entanglement
with desired magnitude. Moreover, the time ordering effects are found to be
important in the creation and manipulation of entanglement by external fields.Comment: 18 pages, 6 figure
Excitation of the (2p2)1D and (2s2p)1P autoionizing states of helium by 200 eV electron impact
No full text
A single-node characteristic collocation method for unsteady-state convection-diffusion equations in three-dimensional spaces
No full textA Second-Order Finite-Volume Scheme for Euler Equations: Kinetic Energy Preserving and Staggering Effects
No full text
