Jenny Quantum is a fictional superhero appearing in comic books published by DC Comics. She is a member of the Justice League and is known for her ability to manipulate quantum energy, allowing her to perform feats such as teleportation and energy projection. Jenny is the daughter of John Constantine and Zatanna, which gives her a unique blend of magical and scientific powers. Her character often explores themes of identity and responsibility, as she learns to harness her abilities while navigating the complexities of her heritage.