  Hybrid entangled states, having entanglement between different
degrees-of-freedom (DoF) of a particle pair, are of great interest for quantum
information science and communication protocols. Among different DoFs, the
hybrid entangled states encoded with polarization and orbital angular momentum
(OAM) allow the generation of qubit-qudit entangled states, macroscopic
entanglement with very high quanta of OAM and improvement in angular resolution
in remote sensing. Till date, such hybrid entangled states are generated by
using a high-fidelity polarization entangled state and subsequent imprinting of
chosen amount of OAM using suitable mode converters such as spatial light
modulator in complicated experimental schemes. Given that the entangled sources
have feeble number of photons, loss of photons during imprinting of OAM using
diffractive optical elements limits the use of such hybrid state for practical
applications. Here we report, on a simple experimental scheme to generate
hybrid entangled state in polarization and OAM through direct transfer of
classical non-separable state of the pump beam in parametric down conversion
process. As a proof of principle, using local non-separable pump state of OAM
mode l=3, we have produced quantum hybrid entangled state with entanglement
witness parameter of W-1.25 violating by 8 standard deviation. The generic
scheme can be used to produce hybrid entangled state between two photons
differing by any quantum number through proper choice of non-separable state of
the pump beam.
