Quantum information is a field that studies how information is stored, processed, and transmitted using the principles of quantum mechanics. Unlike classical information, which relies on bits that can be either 0 or 1, quantum information uses quantum bits, or qubits. Qubits can exist in multiple states simultaneously due to a property called superposition, allowing for more complex information processing. Another key concept in quantum information is entanglement, where qubits become interconnected in such a way that the state of one qubit instantly influences the state of another, regardless of distance. This unique behavior enables advancements in areas like quantum computing and quantum cryptography, promising faster computations and more secure communication methods.