Many quantum information protocols require a Bell-state measurement of entangled systems. Most optical Bell-state measurements utilize two-photon interference at a beam splitter. By creating polarization-entangled photons with spontaneous parametric down-conversion using a first-order Hermite-Gaussian pump beam, we invert the usual interference behavior and perform an incomplete Bell-state meas...

introduction: the important sequelae of facial nerve palsy are synkinesis, asymmetry, hypertension and contracture; all of which have psychosocial effects on patients. synkinesis due to mal regeneration causes involuntary movements during a voluntary movement. previous studies have advocated treatment using physiotherapy modalities alone or with exercise therapy, but no consensus exists on the ...

considering generalized concurrence as the criterion of entanglement, we study entanglement properties of superposition of two qutrit coherent states, as a function of their amplitudes. these states may attain maximum entanglement or no entanglement at all, depending on the choice of the parameters involved. the states revealing maximum entanglement also display the maximum violations of the be...

this is a 9uasi experimental study to compare blood pressure measurements taken by both components of stethoscope, bell and diaphragm. blood pressure was evaluated in fifty patients of fifteen years of age and older. equal populations of both genders were selected randomly from infectious, surgery and internal medicine wards. subjects with cardiac arrhythmia weren't included in the study. ...