Abstract Quantum logic gates are backbones of quantum information processing (QIP). wherein the typical three-qubit Fredkin and Toffoli gates are essential in quantum computation and communication. So far. the quantum Fredkin gate has only been demonstrated with pre-entangled input states in free-space optics. https://www.roneverhart.com/BarConic-Fishbowl-w-lid-straw-47ounce/