In the study of the transition dynamics, we found that the reflectance of bistable cholesteric displays depended on the addressing sequence of the bipolar pulses. Two different pulse amplitudes corresponding to the high and low voltages about the quiescent point were chosen. By a proper permutation of such pulses, the final reflectance of even difference could be obtained for gray-scale display...

Quantum information processing is a multi-disciplinary science involving physics, mathematics, computer science, and even quantum chemistry. It is centred around the idea of manipulating physical systems at the quantum level, either for simulation of physical systems, or numerical computation. Although it has been known for almost a decade that a quantum computer would enable the solution of pr...

The k-space trajectory can be chosen as spiral-out, spiral-in, or spiral in-out (both), controlled by a user CV. In the later case, two separate sets of images are obtained having a common TE (defined as the center of k-space), and they may be combined after reconstruction as desired. See ref. 5 for discussion of the philosophy of the spiral-in approach, as well as methods of combining the two ...