Polarization selective Dove prism

TL;DR

This paper introduces a passive optical device that selectively manipulates light's orbital angular momentum based on polarization, enabling quantum operations and mode sorting with high efficiency.

Contribution

It presents a novel linear optical device capable of polarization-conditioned OAM transformations, including quantum logic gates and mode sorting.

Findings

Demonstrates CNOT and SWAP operations between polarization and OAM qubits

Achieves non-interferometric OAM mode sorting

Performs generalized Pauli X operation on 4D OAM subspace

Abstract

We propose a passive all optical device capable of transforming the orbital angular momentum (OAM) state of light conditioned over the polarization states. The efficiency of this device is ensured due to its linear optical nature. As applications of this device, we show CNOT and SWAP operations between polarization and OAM qubits, non-interferometric OAM mode sorter and generalized Pauli X operation on a four-dimensional subspace of OAM.